Danfoss VLT 2800 Manual

XREF__BC
NOT LOADED ON RIP
VLT® 2800 VLT® 2800
Instruction Manual Instruction Manual
Drives Solutions
195R0027 MG28A722 www.danfoss.com/drives
*MG28A722* REV. 2003-02-04
VLT® 2800 Series
■ Contents
Introduction to VLT 2800 ............................................................................. 3

Software version ..................................................................................................... 3
General warning .................................................................................................... 4
These rules concern your safety: ............................................................................ 4
Warnings against unintended start: ........................................................................ 4
Installation ......................................................................................................... 5
Mechanical dimensions ......................................................................................... 5
Mechanical installation ........................................................................................... 7
General information about electrical installation ...................................................... 8
Installation to minimize EMI/RFI .............................................................................. 9
Grounding of screened/armored control cables ..................................................... 10
Diagram ................................................................................................................ 11
Electrical installation ............................................................................................... 12
Safety clamp .......................................................................................................... 14
Input fuses ............................................................................................................ 14
AC line connection ................................................................................................ 14
Motor connection .................................................................................................. 14
Direction of motor rotation ..................................................................................... 14
Motor thermal protection ........................................................................................ 14
Parallel connection of motors ................................................................................ 15
Motor cables ......................................................................................................... 15
Brake connection .................................................................................................. 15
Ground connection ............................................................................................... 15
Load sharing ......................................................................................................... 15
Tightening Torque, Power Terminals ....................................................................... 16
Control of mechanical brake .................................................................................. 16
Access to control terminals ................................................................................... 17
Electrical installation, control circuitry ..................................................................... 17
Tightening torques, control cables .......................................................................... 18
Electrical installation, control terminals .................................................................... 18
Relay connection ................................................................................................... 18
VLT Software Dialog .............................................................................................. 19
Connection examples ............................................................................................. 20
Control unit ............................................................................................................ 21
Manual initialization ................................................................................................ 21
Programming the adjustable frequency drive ......................................................... 23
Status messages ................................................................................................... 24
Hand / Auto mode operation ................................................................................. 24
Warnings/alarms ................................................................................................... 25
Special conditions .................................................................................................. 26
Temperature-related switching frequency .............................................................. 26
Derating for long motor cables .............................................................................. 26
VLT 2800 start-up ................................................................................................. 26
Programming .................................................................................................... 28
MG.28.A7.22 - VLT is a registered Danfoss trademark 1

VLT® 2800 Series
Operation & Display ................................................................................................ 28

Load and Motor ..................................................................................................... 36
References & Limits ................................................................................................ 46
Inputs and Outputs ................................................................................................ 53
Special functions .................................................................................................... 63
Serial communication ............................................................................................. 72
Technical functions ................................................................................................. 80
All about VLT 2800 ......................................................................................... 85

Warnings/alarm messages and corrective actions ................................................. 85
Warning words, extended status words and alarmwords ....................................... 89
Special conditions .................................................................................................. 90
Extreme environments ........................................................................................... 90
Galvanic isolation (PELV) ........................................................................................ 90
UL/cUL Standards ................................................................................................ 90
General technical data ............................................................................................ 92
Technical data, AC line supply 1 x 220 - 240 V/3 x 200-240V ................................ 96
Technical data, AC line supply 3 x 380 - 480 V ....................................................... 97
Available literature ................................................................................................... 98
Supplied with the unit ............................................................................................. 98
Factory settings ...................................................................................................... 99
2 MG.28.A7.22 - VLT is a registered Danfoss trademark

VLT® 2800 Series
Document Version Number 5.00.
195NA009.16
Introduction to VLT
VLT 2800 Series
2800
Operating instructions
Software version: 2.6x
These operating instructions can be used for all VLT 2800

Series adjustable frequency drives (AFD) with software
version 2.6x.
The software version number can be seen from parameter
640 Software Version.
NOTE
Indicates something to be noted by the reader.
Indicates a general warning.
Indicates a high-voltage warning.

VLT® 2800 Series
■ General warning that 4 minutes has passed before removing

motor and AC line plugs.
The voltage of the adjustable frequency 7. The DC bus terminals are another high voltage
drive is dangerous whenever the drive input that must be disconnected before servicing
is connected to the AC line. Incorrect the drive. Ensure that all voltage inputs have
installation of the motor or drive may cause damage been disconnected and that 4 minutes has
to the equipment, serious injury or death. Comply passed before repair work begins.
with the safety instructions in this manual as well as
local and national rules and safety regulations.
■ Warnings against unintended start:
1. The motor can be started by means of digital
■ These rules concern your safety: commands, bus commands, references or
1. Disconnect the adjustable frequency drive from a local start command whenever the drive
the AC line if repair work is to be carried out. Wait is connected to the AC line. Therefore, an
4 minutes to allow for electrical discharge before unintended start may occur anytime power is
removing motor and AC line connectors. applied. Never service the drive or equipment
2. The [STOP/RESET] key on the control panel when power is applied to the drive.
of the adjustable frequency drive does not 2. The motor may start while parameters are
disconnect the equipment from the AC line. being changed. Always activate the stop key
Do not use it as a safety switch. [STOP/RESET] by pressing it before data is modified.
3. The unit must be grounded correctly. The user 3. A motor that has been stopped may start if
must be protected against supply voltage and the faults occur in the electronics of the drive, or
motor protected against overload in accordance if a temporary overload or fault clears in the
with applicable national and local regulations. AC line or motor connection.
4. The ground leakage currents are higher than 3.5 mA.
5. Protection against motor overload is not included in
the factory setting. If this function is required, set ■ Motor overload protection
parameter 128 Motor thermal protection to ETR The electronic thermal relay (ETR) in UL listed
trip or ETR warning. For North America: The ETR VLTs provides Class 20 motor overload protection
functions provide class 20 overload protection for in accordance with the NEC in single motor
the motor, in accordance with NEC requirements. applications when parameter 128 is set for "ETR
6. Do not remove the terminal plugs for the motor TRIP" and parameter 105 Motor current is set
and AC line supply while the adjustable frequency for the rated motor current.
drive is connected to the AC line. Ensure that
the AC line supply has been disconnected and
Warning:
It can be extremely dangerous to touch the electrical parts
even when the mains supply has been disconnected.
Also ensure that other voltage inputs are disconnected
from load sharing through the DC bus.
Wait at least 4 minutes after the input power has been
removed before servicing the drive.
195NA139.10

VLT® 2800 Series
■ Mechanical dimensions
The drawing below gives the mechanical dimensions The drawing below gives the mechanical dimensions of
of VLT 2803-2815 (1/2 - 2 HP) 200-240 Volts VLT 2840 (5 HP) 200-240 Volt and VLT 2855-2875 (7 -
and VLT 2805-2815 (3/4 - 2 HP) 380-480 Volts. 10HP) 380-480 Volt. All dimensions are in inches.
All dimensions are in inches.
VLT 2840 200-240 Volt
VLT 2803-2815 200-240 Volt VLT 2855-2875 380-480 Volt
VLT 2805-2815 380-480 Volt
Installation
The drawing below gives the mechanical dimensions of
VLT 2822 (3 HP) 200-240 Volts and VLT 2822-2840 (3 VLT 2880-82 380-480V
- 5 HP) 380-480 Volts. All dimensions are in inches.
VLT 2822 200-240 Volt

VLT 2822-2840 380-480 Volt

VLT® 2800 Series
■ Motor coils (195N3110)
■ RFI 1B filter (195N3103)
■ Terminal cover
The drawing below gives the dimensions for
the NEMA 1 terminal covers.
Dimension ’a’ depends on the unit type.

VLT® 2800 Series
■ Mechanical installation
The adjustable frequency drive is cooled by air ■ Side-by-side
circulation. For proper cooling, allow a minimum All VLT 2800 units can be installed side-by-side
of 4 inches (100 mm) of open space above and since they do not require side cooling.
below the unit. To protect the unit from overheating,
ensure that both the ambient temperature and the The VLT 2800 mounts in virtually any position.
24-hour average temperature are not exceeded. This free mounting position offers wide flexibility in
The maximum temperature and 24-hour average system design and motor connection.
are listed in General technical data in this manual. If
the ambient temperature is in the range of 113°F -
131°F (45°C - 55°C), derating of the drive must be
carried out. See Derating for ambient temperature
in this manual. The service life of the unit will be
reduced without applicable derating.
The requirements that apply to enclosures

and remote mounting must be complied
with to avoid serious injury or equipment
damage, especially when installing large units.
Installation
■ Enclosures
In the USA and some other countries, a NEMA 1
terminal cover enclosing terminal connectors is required
if the drive is not installed within another enclosure.
■ Spacing for mechanical installation

All units require a minimum of 4 inches (100 mm) open
air space at the fan inlet and outlet of the drive.

VLT® 2800 Series
■ General information about electrical installation
■ High voltage warning
The voltage of the adjustable frequency

drive is dangerous whenever the drive
is connected to the AC line. Incorrect
installation of the motor or drive may cause damage
to the equipment, serious injury or death. Comply
with the safety instructions in this manual as well
as local and national rules and safety regulations.
Touching electrical parts may be fatal - even after the
equipment has been disconnected from the AC line.
Wait at least 4 minutes for current to dissipate.
NOTE
It is the responsibility of the user or installer
to ensure correct grounding and protection in
accordance with national and local standards.
■ Grounding
Comply with the following at installation:
• Safety grounding: The drive has a high leakage

current and must be grounded properly for safety.
Follow all local safety regulations.
• High frequency grounding: Keep grounding
cables as short as possible.
Connect all grounds to ensure the lowest possible

conductor impedance. The lowest possible conductor
impedance is achieved by keeping the conductor as
short as possible and by grounding with the greatest
possible surface area. If multiple drives are installed
in a cabinet, the cabinet backplate, which must be
made of metal, should be used as a joint ground
reference plate. The drives must be fitted to the
backplate at the lowest possible impedance.
To achieve low impedance, connect the drive to the

backplate with the drive fastening bolts. Remove
all paint from the contact points.
■ High voltage test

A high voltage test can be performed by short-circuiting
terminals U, V, W, L1, L2 and L3, and applying
max. 2160 V DC in 1 sec. between this
short-circuit and terminal 95.

VLT® 2800 Series
■ Installation to minimize EMI/RFI - Use cable clamps rather than twisted shield
ends (pigtails), for installation to provide
NOTE shielding at high frequencies.
Using unshielded/unarmored cable may not
comply with some EMC/RFI requirements. - Ensure good electrical contact between the
drive and the metal control panel using the
To minimize conducted and radiated high frequency drive installation screws.
emissions, comply with the following procedures: - Use lock washers and conductive fasteners.
- Use shielded/armored motor cables in
- Use only shielded/armored motor cables and the control panel.
shielded/armored control cables.
- Connect the shield to ground at both ends. The illustration below shows proper electrical
installation, with the drive installed in a control
panel and connected to a PLC.
Installation

VLT® 2800 Series
■ Grounding of screened/armored control cables

In general, control cables must be screened/armored,
and the screen must be connected to the unit’s
grounding plate with a cable clamp at each end. The
drawing shows the correct way to perform grounding.
1. Correct grounding
Control cables and cables for serial
communication must be attached with cable
clamps at both ends to ensure maximum
possible electrical contact.
2. Incorrect grounding
Do not use screen ends that are twisted
together (pigtails), as these increase screen
impedance at higher frequencies.
3. Equalizing the ground potential between
a PLC and the adjustable frequency drive
If there is a different ground potential between
the drive and the PLC, electrical noise can be
generated which could interfere with the whole
system. This problem can be solved by attaching
a compensation cable, which is placed beside the
control cable. Minimum cable diameter: 6 AWG.
4. In the event of a 50/60 Hz ground loop
If very long control cables are used, 50/60 Hz
ground loops can arise which can interfere with
the whole system. This problem is resolved by
attaching one end of the screen to ground via a
100 µF condenser (short pin length).

VLT® 2800 Series
■ Diagram
Installation
* Integrated 1A RFI filter and brake is an option.
** VLT 2803-2815 200-240 V is not supplied
with intermediate circuit coils.

VLT® 2800 Series
■ Electrical installation
VLT 2822 200-240 V, 2822-2840 380-480 V
VLT 2803-2815 200-240 V, 2805-2815 380-480 V

VLT® 2800 Series
VLT 2880-2882 380-480V

VLT 2840 200-240 V, 2855-2875 380-480 V
Installation
Please note, that the units will be supplied
with two bottom plates; one for metric glands
and one for conduits.

VLT® 2800 Series
■ Safety clamp 380-460 Volt units with RFI-filters may not

To maintain the galvanic isolation (PELV) between be connected to AC line supplies in which
the control terminals and high-voltage terminals, the the voltage between phase and ground is
accompanying safety clamp must be attached to more than 300 Volts. Please note that for the AC line
VLT 2803-2815, 200-240 V, and VLT 2805-2815, for IT and the delta ground the AC line voltage can
380-480 V. Attach the safety clamp to the strain exceed 300 Volts between phase and ground. Units
relief plate with the two screws provided. with type code R5 can be connected to mains supplies
with up to 400 V between phase and ground.
See Technical data for correct dimensioning

■ Input fuses of cable cross-section.
For all unit types, external fuses must be fitted in the
AC line supply to the drive. For UL/cUL applications
with an AC voltage of 200-240 Volts, use fuses type
Bussmann KTN-R (200-240 Volts) or Ferraz Shawmut ■ Motor connection
type ATMR (max. 30A). For UL/ cUL applications
NOTE
with an AC voltage of 380-480 Volts, use fuses type
It is recommended that an LC filter be
Bussmann KTS-R (380-480 Volts). See Technical data
connected to the output of the drive for motors
in this manual for correct dimensioning of fuses.
without phase insulation paper.
It is the responsibility of the installer or
See Technical data in this manual for correct
user to insure proper external AC power
dimensioning for cable cross-section. All types
input fusing to the drive.
of three-phase asynchronous standard motors
can be connected to a drive.
■ AC line connection Connect the motor to terminals 96, 97, 98.

Connect ground to terminal 99.
All drives that are equipped with an RFI
filter cannot be connected to a grounded N0. 96 97 98 Motor voltage 0-100%
DELTA or IT mains/AC line system. U V W of AC line voltage.
N0. 99 Ground connection
NOTE
Check that the AC voltage matches the voltage See Technical data for correct dimensioning
rating of the drive. The drive rating is on the of cable cross-section.
drive nameplate. See Technical data in this
manual for correct dimensioning of cable cross-section. Ensure that the motor is wired for the line voltage
before connecting to the drive.
For single phase 220-240 Volts input, attach the
neutral wire to terminal N (L2) and connect the
phase wire to terminal L1 (L1). ■ Direction of motor rotation
No. N(L2) L1(L1) (L3) AC line voltage 1 x 220-240 V To change the direction of motor rotation, switch any
N L1 two phases at the drive output or at motor terminals.
No. 95 Ground connection
No. N(L2) L1(L1) (L3) AC line voltage 3 x 220-240 V

■ Motor thermal protection
L2 L1 L3
The electronic thermal relay in the adjustable frequency
drive has received the UL-approval for single motor
protection, when the following parameters have been
No. 91 92 93 AC line voltage 3 x 380-480 V
set. Enter the rated motor current from the motor
L1 L2 L3
nameplate in parameter 105, Motor current. Set

VLT® 2800 Series
parameter 128, Motor thermal protection, for ETR Trip.

NOTE
See Programming the adjustable frequency drive in this
manual for instructions on programming parameters.
comply with some RFI requirements
Keep the motor cable as short as possible to reduce

■ Parallel connection of motors the noise level and to keep leakage currents to a
minimum. Connect the motor cable shield to the
ground connection of both the unit and the motor.
Use cable clamps rather than twisted shield ends
(pigtails), for installation to provide shielding at high
frequencies. If it is necessary to break the shield to
install a motor isolator or motor relay, the shield must
be continued at the lowest possible HF impedance.
■ Brake connection
NOTE
Installation
Voltages up to 850 VDC occur on the terminals.
The adjustable frequency drive is able to control

No. 81 82 Brake resistor
several motors connected in parallel. The combined
R- R+ terminals
total current consumption of the motors is not to
exceed the maximum rated output current (IINV) for
the adjustable frequency drive. If the motors are to Connect the brake resistor wiring to drive terminals 81
have different rpm values, use motors with different and 82. The connection cable to the brake resistor
rated rpm values. Motor frequency is changed must be shielded/armored. Connect the shield to
simultaneously, which means that the ratio between both the ground of the drive and the brake resistor by
the rated rpm values is maintained. means of cable clamps. Dimension the cross-section
of the brake cable to match the brake torque.
Problems may arise at start-up and when operating
at low rpm if the motor sizes are widely different.
This is because the small motors’ relatively high
■ Ground connection
resistance in the stator calls for a higher voltage
Since the leakage currents to ground may be higher
at the start-up and at low rpm.
than 3.5 mA, the adjustable frequency drive must
In systems with motors connected in always be connected to ground in accordance with
parallel, the electronic thermal relay (ETR) applicable national and local regulations. To ensure
of the adjustable frequency drive cannot that the ground cable has good mechanical connection
be used as motor protection for the individual motor. to terminal 95, the cable cross section must be a
Protection must be provided individually for each motor. minimum 7 AWG (10 mm2). To improve protection
even further, a Recidual Current Device (RCD) can be
fitted to ensure that the adjustable frequency drive
■ Motor cables cuts out when the leakage currents get too high. Also
See Technical data in this manual for correct see RCD Application note MN.90.GX.02.
dimensioning of motor cable cross-section and
length. Always comply with national and local
regulations on cable cross-section.

VLT® 2800 Series
■ Load sharing drive is not able to ’support’ the motor, as when

Load sharing provides the facility to connect several the load being too great. Select Mechanical brake
frequency converters’ DC intermediate circuits. control in parameter 323 (relay) or 341(digital) for
This requires that the installation is extended using applications with an electromagnetic brake.
extra fuses and AC coils (see drawing below).
For load sharing parameter 400 Brake function When the output frequency exceeds the brake cut out
must be set to Load sharing [5]. value, set in parameter 138, the brake is released if the
Use 6.3 mm Faston Plugs for DC (Load Sharing). motor current exceeds the preset value in parameter
Contact Danfoss or see instructions no. MI.50.NX.02 140. The brake is activated when the output frequency
for further information. is less than the brake in frequency. Set the cut in
frequency in parameter 139, Break cut in frequency.
No. 88 89 Loadsharing If the adjustable frequency drive is placed at alarm
- + status or in an overvoltage situation the mechanical
brake is cut in immediately. See Programming
the adjustable frequency drive in this manual for
instructions on progtamming parameters.
NOTE
This application is only for lifting/lowering
without counterbalance.
Note that voltage levels of up to 850 V DC

may occur between terminals 88 and 89.
■ Tightening Torque, Power Terminals

Power and earth terminals must be tightened
with the following torques:
VLT Terminals Torque [Nm]
2803– Power mains brake 0.5–0.6
2875 Earth 2–3
2880– Power mains brake 1.2–1.5
2882 Earth 2–3
■ Control of mechanical brake

In lifting/lowering applications, an electromagnetic
brake is used which is controlled by the adjustable
frequency drive. The brake is controlled using a
relay output or digital output (terminal 46). The
output must be kept open (voltage-free) for the
period of time during which the adjustable frequency

VLT® 2800 Series
■ Access to control terminals

All control terminals are located underneath the
protective plate on the front of the adjustable
frequency drive. Remove the protective plate by
sliding it downwards (see drawing).
Control wires must be shielded/armored. Connect the

shield to the drive chassis with a clamp. Normally,
the shield must also be connected to the chassis of
the controlling device. (See the instructions for the
specific device.) In analog signals or connections using
very long wires, 50/60 Hz ground loops may occur
because of noise transmitted from the AC line. It may
■ Electrical installation, control circuitry be necessary to break the shield and insert a 100 µF
Installation
capacitor between the shield and the chassis.
NOTE
comply with some EMI/RFI requirements.

VLT® 2800 Series
■ Tightening torques, control cables

NOTE
Control wires must be connected with a tightening
To supply internal 24 VDC voltage to the
torque of 0.22–0.25 Nm.
digital input terminals, jumper terminal
12 to terminal 27.
■ Electrical installation, control terminals ■ Relay connection

See parameter 323, Relay output for programming
NOTE of relay output.
No. 01 - 02 1 - 2 make (normally open)
comply with some EMC/RFI requirements.
01 - 03 1 - 3 break (normally closed)
Refer to the following table for VLT 2800 terminal
designations and their functional descriptions. NOTE
The cable jacket for the relay must cover
the first row of control card terminals -
otherwise the galvanic isolation (PELV)
cannot be maintained. Maximum cable diameter:
0-160 in (4 mm). See drawing.
No. Function
01-03 Relay outputs 01-03 can be used for
indicating status and alarms/warnings.
12 24 VDC voltage supply.
18-33 Digital inputs.
20, 55 Common frame for input
and output terminals.
42 Analog output for displaying frequency, ■ Profibus DIP switches setting
reference, current or torque.
461 Digital output for displaying status,
warnings or alarms, as well as
frequency output. The dip switch is only on the control card with Profibus
50 +10 VDC supply DP communication. The switch position shown is the
voltage for potentiometer or thermistor. factory setting. Switches 1 and 2 are used as cable
53 Analog voltage input 0 - 10 V DC.
termination for the RS-485 interface. If the adjustable
60 Analog current input 0/4 - 20 mA.
frequency drive is located as the first or last (or only)
671 + 5 VDC supply voltage
unit in the bus system, switches 1 and 2 must be ON.
to Profibus.
On the remaining adjustable frequency drives, switches
68, RS-485, Serial communication.
1 and 2 must be OFF. Switches 3 and 4 are not applied.
691
701 Frame for terminals 67, 68 and 69.
Normally this terminal is not to be used.
1. The terminals are not valid for DeviceNet. See the

DeviceNet manual, MG.90.BX.YY for further details.

VLT® 2800 Series
■ VLT Software Dialog

Connection to terminals 68-70 or
Sub D:
- PIN 3 GND
- PIN 8 P-RS 485
- PIN 9 N-RS 485
■ Sub D plug
An LCP 2 control unit can be connected to the Sub D
Installation
plug on the control card. Ordering number: 175N0131.
LCP control units with ordering number 175Z0401
are not to be connected.

VLT® 2800 Series
■ Connection examples Par. 303 Digital input = Freeze reference [14]

Par. 305 Digital input = Speed up [16]
■ Start/stop Par. 307 Digital input = Speed down [17]
See Programming the adjustable frequency drive in this
manual for instructions on programming parameters.
■ Potentiometer reference
Start/stop using terminal 18 and coasting Voltage reference via a potentiometer.
stop using terminal 27.
Par. 308 Analog input = Reference [1].

Par. 302 Digital input = Start [7] Par. 309 Terminal 53, min. scaling = 0 Volt.
Par. 304 Digital input = Coasting stop inverse [2] Par. 310 Terminal 53, max. scaling = 10 Volt.
For Precise start/stop the following settings are used:

Par. 302 Digital input = Precise start/stop [27] ■ Connection of a 2-wire transmitter
Par. 304 Digital input = Coasting stop inverted [2] Connection of a 2-wire transmitter as feedback
to terminal 60.
■ Pulse start/stop
Pulse start using terminal 18 and pulse stop
using terminal 19. In addition, the jog frequency
is activated via terminal 29.
Par. 302 Digital input = Pulse start [8]

Par. 303 Digital input = Stop inverse [6] Par. 314 Analog input = Feedback [2]
Par. 304 Digital input = Coasting stop inverse [2] Par. 315 Terminal 60, min. scaling = 4 mA
Par. 305 Digital input= Jog [13] Par. 316 Terminal 60, max. scaling = 20 mA
■ Speed up/down
Speed up/down using terminals 29/33.
Par. 302 Digital input = Start [7]

VLT® 2800 Series
■ Control unit cancel a change of parameter values and to toggle

between Display mode and Quick menu mode.
[CHANGE DATA] is used to change a setting.

The [CHANGE DATA] key is also used to
confirm a parameter change.
[+] and [-] are used to scroll through parameters and

to change parameter values. These keys are also used
in Display mode to select a value for display.
The [QUICK MENU] and [+] keys pressed at the

same time give access to all parameters by entering
Menu mode. See Menu mode.
[STOP/RESET] is used to stop the connected motor

or to reset the adjustable frequency drive after a trip.
The key can be selected as Active [1] or Not active [0]
via parameter 014 Local stop/reset. In Display mode,
the display will flash if the stop function is activated.
Installation
NOTE
If the [STOP/RESET ] key has been selected
The control panel is divided into four function groups: as Not active [0] in parameter 014 Local
1. Six-digit LED display . stop/reset and there is no stop command via
2. Keys for changing parameters and shifting the digital inputs or serial communication, the motor
display functions. can only be stopped by disconnecting the AC line
3. Indicator lamps. voltage to the adjustable frequency drive.
4. Keys for local operation.
[START] is used for starting the adjustable frequency
All data is displayed on a six-digit LED. The LED can drive. It is always available, but the [START] key cannot
show one item of operating data continuously during override a stop command issued through terminal 27 or
normal operation. There are three indicator lamps a digital communication bus (see connection examples).
for indication of AC line connection (ON), warning
(WARNING) and alarm (ALARM). Most of the adjustable
frequency drive parameters can be changed via the ■ Manual initialization
control panel. This function can be programmed as To manually initialize the adjustable frequency drive to
Locked in parameter 018, Lock for data changes, factory default settings, first disconnect AC line voltage.
to prevent tampering or local data entry. Hold the [QUICK MENU] and [+] and [CHANGE DATA]
keys down while simultaneously reconnecting the AC
A keypad, similar to the larger VLT 6000, is available for
line voltage. Release the keys. The drive has now
cable connection to the VLT 2800. This optional LCP
been programmed for factory settings.
2 allows full text displays and programming multiple
drives. Drive set up data can be loaded onto the LCP
2. The keypad can then be connected to other drives
and the data downloaded for ease of programming.
■ Control keys
[QUICK MENU] allows access to the parameters
in the Quick menu. This menu is for initial setup of
the drive. The [QUICK MENU] key is also used to

VLT® 2800 Series
■ Display readout states

Menu mode
Display mode
In normal operation, one item of operating data

can be selected for continuous display.
Use the [+] and [-] keys to select from the To enter the Menu mode, press [QUICK MENU]
following options for display: and [+] at the same time.
- Output frequency [Hz] In Menu mode, most of the adjustable frequency
- Output current [A] drive parameters can be changed. Scroll through
- Output voltage [V] the parameters using the [+] and [-] keys. The
- DC bus voltage [V] current parameter number will flash while scrolling
- Output power [kW] through the menu items.
See Status messages for code explanations.
Quick menu
Use the [QUICK MENU] key to access the 12 The display example shows that the setting in
most important parameters of the adjustable parameter 102 Motor power PM,N is 0.75. In order to
frequency drive. After programming the Quick menu change the value of 0.75, press [CHANGE DATA]. Use
parameters, the adjustable frequency drive is, in the [+] and [-] keys to change the parameter value.
most cases, ready for operation. See Programming
the adjustable frequency drive.
The Quick menu parameters are:
• Par. 102 Motor power PM,N
• Par. 103 Motor voltage UM,N
• Par. 104 Motor frequency fM,N
• Par. 105 Motor current IM,N
• Par. 106 Rated motor speed nM,N
When, for a given parameter, the display shows
• Par. 107 Automatic motor adaption.
three dots at the right, it means that the parameter
• Par. 204 Minimum reference RefMIN
value has more than three digits. In order to see
• Par. 205 Maximum reference RefMAX
the value, press [CHANGE DATA].
• Par. 207 Ramp-up time
• Par. 208 Ramp-down time
• Par. 002 Local/remote operation
• Par. 003 Local reference
Parameter 102 - 106 can be read out from

the motor nameplate.
The display shows that in parameter 128, Motor

thermal protection, the second [2] selection
is active, Thermistor trip.

VLT® 2800 Series
Programming the adjustable frequency drive 4. Press [CHANGE DATA] and use the [+] key
to select data value [2], Optimization on (AMT
NOTE START). [2] will now flash.
The motor must be stopped to change 5. Press [START] key to activate AMT. "107" will
parameter data. now flash and dashes will move from left to
right in the data value field.
Program the drive in accordance with the 6. When "107" appears once more with the data
following procedure: value [0], AMT is complete. Press [STOP/RESET]
1. Press the [QUICK MENU] key to enter to save the motor data into the drive memory.
the Quick menu. 7. "107" will then continue to flash with the data
2. Scroll through the Quick menu using the value [0]. Press [QUICK MENU] to exit Menu
[+] and [-] keys. mode and enter Display mode.
3. Change the data values by first pressing
[CHANGE DATA] key
4. and then change the parameter value with
the [+] and [-] keys.
5. Press [CHANGE DATA] again to accept the change
or [QUICK MENU] to cancel the change. Press
[QUICK MENU] once more to exit Quick menu
Installation
mode and enter Display mode. (The drive will
default from Quick menu mode to Display mode
in 2 minutes if no activity has taken place.)
NOTE
Enter parameters 102 through 106 data, at
minimum, to ready the drive for operation.
Data for parameters 102 through 106 can
be read from the motor nameplate.
Automatic motor tuning

Automatic motor tuning (AMT) measures stator
resistance RS without the motor turning. This means
that the motor is not delivering any torque. AMT
can optimize adjustment of the adjustable frequency
drive to the motor. For best possible tuning, it is
recommended that AMT be performed on a cold
motor. Repeated AMT runs can cause motor heating,
resulting in an increase in the stator resistance. As
a rule, however, this is not critical. (See parameter
107, Automatic motor tuning, AMT, description
for more detail before running AMT.)
Perform AMT in accordance with the

following procedure:
1. Press the [QUICK MENU] key to enter

Quick menu mode
2. Use the [+] key to scroll to parameter 107.
3. In parameter 107, Automatic motor tuning,
"107" will now flash.

VLT® 2800 Series
■ Status messages
Fr ■ Hand / Auto mode operation
The drive displays the present output frequency During Auto mode operation, the adjustable frequency
in Hertz [Hz]. drive receives an external reference through the control
terminals as analog or digital signals. In Auto mode, use
Io the [+] and [-] keys to scroll through the display of drive
The drive displays the present output current status messages. In Hand mode, it is possible to control
in Amps [A]. the speed of the drive locally through the keypad.
Uo On the control terminals, the following control signals
The drive displays the present output voltage in Volts [V]. will remain active when Hand mode is activated:
Ud • Hand Start (LCP2)
The drive displays the DC bus voltage in Volts [V]. • Off Stop (LCP2)
• Auto Start (LCP2)
Po • Reset
The drive displays the calculated output in kilowatt [kW]. • Coasting Stop Inverse
• Reset and Coasting Stop Inverse
notrun
• Quick Stop Inverse
This message is shown if an attempt is made to change
• Stop Inverse
a parameter value while the motor is running. Stop
• Reversing
the motor to change the parameter value.
• DC Braking Inverse
LCP • Setup Select LSB
This message is shown if an LCP 2 control unit is • Setup Select MSB
connected and the [QUICK MENU] or [CHANGE DATA] • Thermistor
key is pressed. With an LCP 2 control unit connected, • Precise Stop Inverse
it is only possible to change parameters via the LCP 2. • Precise Stop/Start
• Jog
HA • Stop Command Via Serial Comm.
HA indicates the drive is in Hand mode, which
means the drive’s speed is controlled at the keypad Switching between Auto and Hand mode:
with the [+] and [-] keys. Only output frequency is To switch between operational modes, press
shown on the display in Hand mode. the [Change Data] key. The display will indicate
the current mode of operation.
Use the [+] and [-] keys to toggle between Hand

and Auto mode. Press the [Change Data] key
again to activate the selected mode, otherwise
the mode displayed will take effect automatically
in about three seconds.
Operation in Hand mode:

When the adjustable frequency drive is running normally
in Hand mode, the display will show HA to indicate
Hand mode along with the drive output frequency.

VLT® 2800 Series
In Hand mode, the local speed reference can be

increased or decreased with the [+] and [-] keys:
In Hand mode, the [+] and [-] keys are also used to
toggle through status messages. Press and hold the
[Change Data] key for approximately 3 seconds. When
the display begins to flash, use the [+] and [-] keys
to change the drive status display. The displays are
temporary and will default back to output frequency.
NOTE
Parameter 020 can be used to disable
Hand mode operation.
Installation
■ Warnings/alarms
Warnings or alarms appear in the LED display as a
numerical code [Err. xx]. A warning is displayed until
the fault has been corrected, while an alarm will flash
until the [STOP/RESET] key is pressed. The table in
Warnings/alarms messages in this manual explains
the various warnings and alarms, and whether a fault
locks the adjustable frequency drive. After a Trip
locked fault, cut off the AC line supply and correct the
fault. Then reconnect the AC line supply and press
the [STOP/RESET] key. The adjustable frequency
drive is now reset and ready. See Warnings/alarms
messages in this manual for more detail.

VLT® 2800 Series
■ Special conditions ■ Derating for long motor cables

The adjustable frequency drive has been designed
■ Derating for ambient temperature for a 240 ft (75 m) unscreened/unarmored cable
The ambient temperature (TAMB,MAX) is the maximum or a 80 ft (25 m) screened/armored cable and
temperature allowed. The average (TAMB,AVG) measured a motor cable with a rated cross-section. If a
over 24 hours, must be at least 9°F (5°C) lower. If the cable with a larger cross-section is required, it is
adjustable frequency drive operates at temperatures recommended to reduce the output current by
above 113°F (45°C), a derating of the rated output 5% for each step that the cable cross-section is
current is necessary as shown in the diagram below. increased. (Increased cable cross-section leads
to increased capacitance to ground, and thus to
an increased ground leakage current.)
■ VLT 2800 start-up

Pre-installation checks
1. Compare drive model number to what was ordered.
2. Ensure each of following are rated for same voltage:
• Drive
• Power line
• Motor
3. Record following motor data:

■ Temperature-related switching frequency
• Voltage
This function ensures the highest possible switching
• Frequency
frequency without the adjustable frequency drive
• Full load current
becoming thermally overloaded. The internal
• Full load speed
temperature determines the switching frequency based
• Power - convert HP to kW (See conversion table
on the load, the ambient temperature, the supply
in parameter 102, Motor Power, in this manual.)
voltage and the cable length. The function ensures that
the drive automatically adjusts the switching frequency 4. Ensure that rated drive current is equal to or
between the minimum and maximum switching greater than total full load current.
frequency (parameter 411), see drawing below. • Drive can be at most one size smaller than motor.
• For multiple motor operations, add full load
current ratings of all motors.
• If drive rating is less than motor(s), full motor
output cannot be achieved.
5. Check motor wiring:

• Any disconnect between drive and motor
should be interlocked to drive safety interlock
circuit to avoid unwanted drive trips.
• No power factor correction capacitors can be
connected between drive and motor.
• Two speed motors must be wired
When using the LC filter the minimum switch permanently for full speed.
frequency is 4.5 kHz. • Y-start, -run motors must be wired
permanently for run.

VLT® 2800 Series
Installation checks
1. Input fusing in power supply for all drives Operational tests - AUTO
must be provided. 1. Ensure that drive follows run/stop and safety
2. Environmental concerns - for standard interlock commands from system.
NEMA 1 drive: 2. Ensure drive follows speed reference, or
• Clean air supply feedback, from system.
• Dry air (5% to 85% relative humidity,
non-condensing)
• 32°F (0°C) to 104°F (40°C) ambient temperature
operating range, or as rated
• 1000m (3,300 ft) maximum elevation
with no derating
• Keep any construction dirt out of drive.
3. Wiring
• Wire drive in accordance with instructions
and diagrams received with drive.
• Separate conduits must be provided to drive for
input power, output power, and control wiring.
Installation
• Protect signal wires from noise.
• Ground each drive individually.
• Double check input and output power
wiring for correct location.
Setting up drive for motor start

Ensure that all warnings provided in this manual have
been adhered to. Apply power to the unit. Enter motor
nameplate data into drive through Quick Menu.
1. Parameter 102, MOTOR POWER (in kW) (See
conversion table in parameter 102, Motor
Power, in this manual.)
2. Parameter 103, MOTOR VOLTAGE
3. Parameter 104, MOTOR FREQUENCY
4. Parameter 105, MOTOR CURRENT
5. Parameter 106, MOTOR SPEED
6. Parameter 107, select AUTOMATIC
MOTOR TUNING
Operational tests - HAND

1. Check motor rotation from drive. If incorrect,
disconnect input power from drive and reverse
two leads between drive and motor.
2. Accelerate motor quickly to full speed
and verify operation.
3. Decelerate motor quickly to stop and
verify operation.
4. Operate motor over entire speed range while
closely checking for resonance.

VLT® 2800 Series
■ Operation & Display 2. the [STOP/RESET] and [JOG] keys, on the condition
that these are active. (See parameters 014 and 015.)
001 Language 3. the [FWD/REV] key, on the condition that it has
(LANGUAGE) been selected as active in parameter 016 Local
reversing, and that parameter 013 Local control
Value:
is set at Local control and open loop [1] or Local
✭English (ENGLISH) [0]
control as parameter 100 [3]. Parameter 200 Output
German (DEUTSCH) [1]
frequency range is set at Both directions [4].
French (FRANCAIS) [2]
4. parameter 003 Local reference where the reference
Danish (DANSK) [3]
can be set using the [+] and [-] keys.
Spanish (ESPANOL) [4]
5. an external control command that can be
Italian (ITALIANO) [5]
connected to the digital inputs (see parameter
Function: 013 Local control).
This parameter is used to choose the language NOTE
shown in the display whenever an optional LCP
The [JOG] and [FWD/REV] keys are located
control unit is connected.
on the optional LCP control unit.
Description of choice:
Choose the language to display. The factory
003 Local reference
setting may vary.
(LOCAL REFERENCE)
Value:
Par. 013 Local control must be set to [1] or [2]:
002 Local/remote operation
0 - fMAX (par. 202) ✭ 000,000.000
(OPERATION SITE)
Value:
✭Remote operation (REMOTE) [0] Par. 013 Local control must be set to [3] or [4] and
Local operation (LOCAL) [1] parameter 203 Reference/feedback range to [0]:
RefMIN - RefMAX (par. 204-205) ✭ 000,000.000
Function:
There is a choice between two modes of operation
for the adjustable frequency drive: Remote operation
Par. 013 Local control must be set to [3] or [4] and
[0] or Local operation [1]. See also parameter 013
parameter 203 Reference/feedback rangeto [1]:
Local control if Local operation [1] is selected.
- RefMAX - + RefMAX (par. 204-205) ✭ 000,000.000
Function:
If Remote operation [0] is selected, the adjustable In this parameter, the local reference can be set
frequency drive is controlled via: manually. The unit of the local reference depends on the
1. the control terminals or serial communication. configuration selected in parameter 100 Configuration.
2. the [START] key. This cannot, however, override
stop commands transmitted via the digital inputs or Description of choice:
via serial communication (see parameter 505 Start). In order to protect the local reference, parameter
3. the [STOP/RESET] and [JOG] keys, on the 002 Local/remote operationmust be set to Local
condition that these are active. (See parameters operation [1]. Local reference cannot be set
014 Local stop and 015 Local jog.) via serial communication.
If Local operation [1] is selected, the adjustable

frequency drive is controlled via:
1. the [START] key. This cannot, however, override
stop commands via the digital inputs (see
parameter 013 Local control).
✭ = factory setting. () = display text [] = value for use in communication via serial communication port

VLT® 2800 Series
004 Active Setup will be equal to parameter 004 Active Setup. Each
(ACTIVE SETUP) Setup 1-4 initially has the Factory Setup.
Value: NOTE
Factory Setup (FACTORY SETUP) [0] If data is modified or copied to the active
✭Setup 1 (SETUP 1) [1] Setup, the modifications have an immediate
Setup 2 (SETUP 2) [2] effect on the unit’s operation.
Setup 3 (SETUP 3) [3]
Multi Setup (MULTI SETUP) [5] 006 Setup copying
(SETUP COPY)
Function:
Value:
The active operational Setup is selected here. All
✭No copying (NO COPY) [0]
parameters can be programmed in four individual
Copy to Setup 1 from #
Setups. Selections between Setups can be made in this
(COPY TO SETUP 1 ) [1]
parameter via a digital input or via serial communication.
Copy to Setup 2 from #
Description of choice: (COPY TO SETUP 2) [2]
Factory Setup [0] contains the factory-set parameter Copy to Setup 3 from #
values. Setups 1-4 [1]-[4] are four individual (COPY TO SETUP 3) [3]
Setups which can be selected for active operation. Copy to Setup 4 from #
Multi Setup [5] is used for remote-controlled (COPY TO SETUP 4) [4]
selection between the four Setups via a digital Copy to all Setups from # (COPY TO ALL) [5]
input or via serial communication.
Function:
You can copy from the selected active Setup
in parameter 005 Programming setup to the
005 Programming Setup selected Setup in this parameter.
Programming
(EDIT SETUP)
NOTE
Value:
Copying is only possible in [STOP/RESET]
Factory Setup (FACTORY SETUP) [0]
with the motor stopped.
Copying begins when the required copying function
has been selected and the [CHANGE DATA] key
✭Active Setup (ACTIVE SETUP) [5]
has been pushed. The display indicates when
Function: copying is in progress. Press [OK] to complete
You can select which Setup you want to program. copying for the optional LCP.
You can program a Setup during operation (from the
control panel or the serial communication port). It is, for
example, possible to program Setup 2 [2], while the 007 LCP copy
active Setup is set to Setup 1 [1] in parameter 004 Active
(LCP COPY)
Setup. You cannot, however, change Factory Setup [0].
Value:
Description of choice: ✭No copying (NO COPY) [0]
Factory Setup [0] contains the factory-set data and Upload all parameters (UPL. ALL PAR.) [1]
can be used as a source of data or to reset to a Download all parameters (DWNL. ALL PAR.) [2]
known status. Setup 1-4 [1]-[4] are individual Setups Download size-independent parameters
that can be programmed freely during operation. If (DWNL. OUTPIND. PAR.) [3]
Active Setup [5] is selected, the programming Setup
VLT® 2800 Series
Function: ✭Frequency [Hz] (FREQUENCY [HZ]) [4]

Parameter 007 LCP copy is used if the LCP 2 Output frequency x scaling
control panel is to be used to transfer settings. Use (FREQUENCY X SCAL.) [5]
this function if all parameter Setups 1-4 are to be Motor current [A] (MOTOR CURRENT [A]) [6]
copied from one unit to another by connecting the Torque [%] (TORQUE [%]) [7]
LCP 2 control panel to different drives. Power [kW] (POWER [KW]) [8]
Power [HP] (POWER [HP]) [9]
Motor voltage [V]
Select Upload all parameters [1] to transfer all (MOTOR VOLTAGE [V]) [11]
parameter values to the LCP. Select Download all DC link voltage [V]
parameters [2] to transfer parameter values to the (DC LINK VOLTAGE [V]) [12]
unit on which the control panel has been connected. Thermal load motor [%]
Select Download power-independent parameters [3] (THERM. LOAD MOTOR [%]) [13]
if only the power-independent parameters are to be Thermal load [%]
downloaded. Use this facility when downloading to (THERM. LOAD [%]) [14]
a unit with a different rated power size than the unit Running hours [Hours]
from which the parameter Setup originates. (RUN HOURS [HOURS]) [15]
NOTE Digital input [Bin]
Upload/download can only be performed in (DIGITAL INPUT[BIN]) [16]
stop mode. Download can only be performed Analog input 53 [V]
to an adjustable frequency drive with the (ANA.INP. 53 [V]) [17]
same software version number, see parameter Analog input 60 [mA]
626 Database identification no. (ANA. INP. 60 [MA]) [19]
Pulse reference [Hz]
(PULSE REFERENCE [HZ]) [20]
008 Display scaling of output frequency External reference [%]
(FREQUENCY SCALE) (EXT. REFERENCE [%]) [21]
Value: Status word [Hex] (STATUS WORD [HEX]) [22]
0.01 - 100.00 ✭ 1.00 Heatsink temperature [°C]
(HEATSINK TEMP. [°C]) [25]
Function: Alarm word [Hex] (ALARM WORD [HEX]) [26]
In this parameter, the factor is selected by which the Control word [Hex] (CONTROL WORD [HEX]) [27]
output frequency is to be multiplied. The value is shown Warning word [Hex]
in the display, provided parameters 009-012 Display (WARNING WORD [HEX]) [28]
readout have been set to Output frequency x scaling [5]. Extended status word [Hex]
(EXT.STATUS WORD[HEX]) [29]
Description of choice: Communication option card warning
Set the required scaling factor. (COMM.OPT.WARN[HEX]) [30]
Pulse count
(PULSE COUNT) [31]
009 Large display readout
Function:
(DISPLAY LINE 2)
In this parameter you can select the data value that
Value: you wish to display in the LCP control unit display line
No readout (NONE) [0] 2 when the adjustable frequency drive is switched
Resulting reference %] on. The display will also be included in the scrollbar
(REFERENCE [%]) [1] in display mode. In parameters 010-012 Display
Resulting reference [unit] readout three additional data values are selectable,
(REFERENCE [UNIT]) [2] which are displayed in display line 1.
Feedback [unit] (FEEDBACK [UNIT]) [3]

VLT® 2800 Series
Description of choice: Gives the calculated/estimated load on the motor.

No readout: 100 % is the cut-out limit.
Can only be selected in parameters 010-012
Thermal load [%]:
Small display readout.
Gives the calculated/estimated thermal load on the
Resulting reference [%]: adjustable frequency drive. 100 % is the cut-out limit.
Gives, as a percentage, the resulting reference
Running hours [Hours]:
in the range from Minimum reference, RefMIN to
Gives the number of hours that the motor has
Maximum reference, RefMAX.
run since the last reset in parameter 619 Reset
Reference [unit]: of running hours counter.
Gives the resulting reference with unit Hz in Open
Digital input [Binary code]:
loop. In Closed loop the reference unit is selected
Gives the signal status from the 5 digital inputs (18, 19,
in parameter 416 Process units.
27, 29 and 33). Terminal 18 corresponds to the bit on
Feedback [unit]: the extreme left. 0’ = no signal, 1’ = signal connected.
` `
Gives the resulting signal value using the unit/scaling
Analog input 53 [V]:
selected in parameter 414 Minimum feedback, FBLOW,
Gives the voltage value of terminal 53.
415 Maximum feedback, FBHIGH and 416 Process units.
Analog input 60 [mA]:
Frequency [Hz]:
Gives the present value of terminal 60.
Gives the output frequency of the adjustable
frequency drive. Pulse reference [Hz]:
Gives the reference in Hz connected to terminal 33.
Output frequency x scaling [-]:
Equals the present output frequency fM multiplied External reference [%]:
by the factor set in parameter 008 Display Gives the sum of external references as a percentage
scaling of output frequency. (sum of analog/pulse/serial communication) in
Programming
the range from Minimum reference, RefMIN to
Motor current [A]:
Gives the phase current of the motor measured
as an effective value. Status word [Hex]:
Gives one or several status conditions in a Hex code
Torque [%]:
Further information is available on serial communication
Denotes the motor’s present load in relation
in the VLT 2800 Design Guide.
to the motor’s rated torque.
Heatsink temp [°C]:
Power [kW]:
Gives the present heatsink temperature of the
Gives the present power that the motor is
adjustable frequency drive. The cut-out limit is
absorbing in kW.
90°C - 100°C (194°F - 212°F), while cutting back
Power [HP]: in occurs at 70°C ± 5°C (158°F ± 9°F).
Gives the present power that the motor is
Alarm word [Hex]:
absorbing in HP.
Gives one or several alarms in hex code.
Motor voltage [V]: Further information is available on serial communication
Gives the voltage supplied to the motor. in the VLT 2800 Design Guide.
DC link voltage [V]: Control word [Hex]:

Gives the DC bus voltage of the adjustable Gives the control word for the adjustable
frequency drive. frequency drive.
Thermal load motor [%]:
VLT® 2800 Series
Further information is available on serial communication Description of choice:

in the VLT 2800 Design Guide. See parameter 009 Large display readout.
Warning word [Hex]:

Gives one or several warnings in hex code.
Further information is available on serial communication 012 Small display readout 1.3
in the VLT 2800 Design Guide. (DISPLAY LINE 1.3)
Value:
Extended status word [Hex]:
See parameter 009 Large display readout
Gives one or several status modes in Hex code.
✭ Power [kW][8]
Further information is available on serial communication
in the VLT 2800 Design Guide. Function:
Communication option card warning [Hex]: See the functional description given under parameter
Gives a warning word if there is a fault in the 010 Small display readout.
communication bus. Only active if communication Description of choice:
options are installed.
See parameter 009 Large display readout.
If there are no communication options 0
Hex is displayed.
Pulse count: 013 Local control

Gives the number of pulses that the unit has registered. (LOC CTRL/CONFIG.)
Value:
Local not active (DISABLE) [0]
010 Small display line 1.1 Local control and open loop
(DISPLAY LINE 1.1) (LOC CTRL/OPEN LOOP) [1]
Value: Remote-operated control and open loop
See par. 009 Large display readout (LOC+DIG CTRL/OPEN LOOP) [2]
✭ Reference [%] [1] Local control as parameter 100
(LOC CTRL) [3]
Function: ✭Remote-operated control as parameter 100
Select the first of three data values to be displayed (LOC+DIG CTRL/AS P100) [4]
in the optional LCP control unit display, line 1,
position 1. This is a useful when setting the PID Function:
control, as it gives a view of process reactions to Select the required function when, in parameter
reference changes. The display readout is activated 002 Local/remote operation, Local operation
by pushing the [DISPLAY MODE] key. [1] has been chosen.
Description of choice: Description of choice:

See parameter 009 Large display readout. If Local not active [0] is selected, it is not possible to
set a reference via parameter 003 Local reference.
To select Local not active [0], parameter
002 Local/remote operation must be set to
011 Small display readout 1.2
Remote operation [0].
(DISPLAY LINE 1.2)
Value: Local control and open loop [1] is used if the motor
See parameter 009 Large display readout speed is to be set via parameter 003 Local reference.
When this choice is made, parameter 100 Configuration
✭ Motor current [A][6]
automatically shifts to Speed regulation, open loop [0].
Function:
Remote-operated control and open loop [2]
See the functional description given under parameter
functions in the same way as Local control and
010 Small display readout.

VLT® 2800 Series
open loop [1]; however, the unit can also be disengaged on the control panel and on the
controlled via the digital inputs. optional LCP 2 control panel.
Local control as parameter 100 [3] is used when the Description of choice:
motor speed is to be set via parameter 003 Local If Not active [0] is selected in this parameter,
reference, but without parameter 100 Configuration the [STOP]-key will be inactive.
automatically shifting to Speed regulation, open loop [0].
If Not active [0] is selected, the motor cannot
Remote-operated control as parameter 100 be stopped by means of the [STOP]-key.
[4] works the same way as Local control as
parameter 100 [3]; however, the unit can also be
controlled via the digital inputs.
015 Local jog
Shifting from Remote operation to Local operation
in parameter 002 Local/remote operation, while this (LOCAL JOGGING)
parameter 013 is set to Remote-operated control Value:
and open loop [2]: The present motor frequency and ✭Not active (DISABLE) [0]
direction of rotation will be maintained. If the present Active (ENABLE) [1]
direction of rotation does not respond to the reversing
Function:
signal (negative reference), the reference will be set to 0.
In this parameter, the jog function on the optional LCP
Shifting from Local operation to Remote operation 2 control panel can be engaged/disengaged.
in parameter 002 Local/remote control, while this
parameter 013 is set to Remote-operated control
and open loop [2]: The configuration selected If Not active [0] is selected in this parameter,
in parameter 100 Configuration will be active. the [JOG]-key will be inactive.
The transition will be smooth.
Programming
Shifting from Remote control to Local control in
016 Local reversing
parameter 002 Local/remote operation, while this
parameter 013 is set to Remote-operated control (LOCAL REVERSING)
as parameter 100 [4]: the present reference will Value:
be maintained. If the reference signal is negative, ✭Not active (DISABLE) [0]
the local reference will be set to 0. Active (ENABLE) [1]
Shifting from Local operation to Remote operation Function:

in parameter 002 Local/remote operation, while In this parameter you can select/deselect the reversing
parameter 013 is set to Remote-operated control as function on the optional LCP 2 control panel. The
parameter 100 [4]: The local reference will be replaced key can only be used if parameter 002 Local/remote
by the remote-operated reference signal. operation is set to Local operation [1] and parameter
013 Local control to Local control, open loop [1]
or Local control as parameter 100 [3].
014 Local stop Description of choice:
(LOCAL STOP) When Disable [0] is selected, the [FWD/REV]
Value: key will be disabled. See also parameter 200
Not active (DISABLE) [0] Output frequency range.
✭Active (ENABLE) [1]
Function:
In this parameter, the local stop function of
the [STOP/RESET] key can be engaged or
VLT® 2800 Series
017 Local reset of trip Function:

(LOCAL RESET) Sets the operating mode when the AC line voltage
Value: is applied. This function can only be active if
Not active (DISABLE) [0] Local operation [1] has been selected in parameter
002 Local/remote operation.
Function:
The reset function of the [STOP/RESET] key on the Auto restart, use saved ref. [0] is selected if the
control panel can be engaged/disengaged. unit is to start using the local reference (set in
parameter 003 Local reference) and the start/stop
Description of choice: state given via the control keys immediately prior
If Not active [0] is selected in this parameter, the to the AC line voltage being cut out.
reset function will be inactive. Forced stop, use saved ref. [1] is selected if the
unit is to remain stopped when the line voltage is
NOTE engaged, until the [START]-key is activated. After a
Select Not active [0], only if an external reset start command the motor speed is ramped up to the
signal has been connected via the digital inputs. saved reference in parameter 003 Local reference.
Forced stop, set ref. to 0 [2] is selected if the unit is to
remain stopped when the line voltage is cut back in.
018 Lock for data changes Parameter 003 Local reference is to be zeroed.
(DATA CHANGE LOCK)
NOTE
Value:
In remote operation (parameter 002
✭Not locked (NOT LOCKED) [0]
Local/remote operation) the start/stop state
Locked (LOCKED) [1]
at the time of AC line connection will depend
Function: on the external control signals. If Pulse start [8] is
In this parameter, it is possible to ’lock’ the controls selected in parameter 302 Digital input, the motor
to disable data changes via the control keys. will remain stopped after power is supplied.
020 Lock for Hand mode
If Locked [1] is selected, data changes in the
parameters cannot be made; however, it will (LOCK HAND MODE)
still be possible to make data changes via serial Value:
communication. Parameter 009-012 Display readout ✭Not active (DISABLE) [0]
can be changed via the control panel. Active (ENABLE) [1]
Function:
In this parameter, select whether switching between
019 Operating mode at power-up, local Auto and Hand mode at the local keypad is permitted.
operation The keypad can be disabled to prevent local control.
(POWER UP ACTION)
Value:
Auto restart, use saved reference If Not active [0] is selected, the Hand mode function will
(AUTO RESTART) [0] be inactive. If Active [1] is selected, switching between
✭Forced stop, use saved reference Auto and Hand mode at the keypad is permitted. For
(LOCAL=STOP) [1] further information, see the Control Unit section.
Forced stop, set ref. to 0
(LOCAL=STOP, REF=0) [2]

VLT® 2800 Series
024 User-defined Quick Menu 5. Repeat steps 2 - 4 until all parameters required
(USER QUICK MENU) have been set to the Quick Menu key.
Value: 6. Press [OK] to complete the Quick Menu setup.
✭Not active (DISABLE) [0] If parameter 100 Configuration is selected at Index
Active (ENABLE) [1] 1, Quick Menu will start with this parameter every
time Quick Menu is activated.
Function:
In this parameter you can opt out of the standard Please note that parameter 024 User-defined Quick
setup of the Quick menu key on the control Menu and parameter 025 Quick Menu setup are reset
panel and the LCP control panel. to the factory setting during initialization.
Using this function, in parameter 025 Quick Menu
setup the user can select up to 20 parameters
for the Quick Menu key.
If not active [0] is selected, the standard setup
of the Quick Menu key is active.
If Active [1] is selected, the user-defined
Quick Menu is active.
025 Quick Menu Setup

(QUICK MENU SETUP)
Value:
[Index 1 - 20] Value: 0 - 999 ✭ 000
Programming
Function:
In this parameter you define which parameters are
required in the Quick Menu when parameter 024
User-defined Quick Menu is set to Active [1].´
Up to 20 parameters can be selected for the
user-defined Quick Menu.
NOTE
Please note that this parameter can only be set
using an LCP 2 control panel. See Order form.
The Quick Menu is set up as follows:
1. Select parameter 025 Quick Menu setup
and press [CHANGE DATA].
2. Index 1 indicates the first parameter in Quick
Menu. You can scroll between the index numbers
using the [+ / -] keys. Select Index 1.
3. Using [< >] you can scroll between the
three figures. Press the [<] key once and
the last number in the parameter number
can be selected using the [+ / -] keys.
Set Index 1 to 100 for parameter 100 Configuration.
4. Press [OK] when Index 1 has been set to 100.
VLT® 2800 Series
■ Load and Motor Variable torque medium

(TORQUE: MED) [3]
100 Configuration Variable torque high
(CONFIGURATION) (TORQUE: HIGH) [4]
Variable torque low with CT start
Value:
(VT LOW CT START) [5]
✭Speed control, open loop
Variable torque medium with CT start
(SPEED OPEN LOOP) [0]
(VT MED CT START) [6]
Speed control, closed loop
Variable torque high with CT start
(SPEED CLOSED LOOP) [1]
(VT HIGH CT START) [7]
Process control, closed loop
Special motor mode
(PROCESS CLOSED LOOP) [3]
(SPECIAL MOTOR MODE) [8]
Function:
This parameter is used to select the configuration to CT = Constant torque
which the unit is to be adapted. The parameters not
used in a given configuration are hidden (not active). Function:
This parameter allows tailoring the V/Hz ratio of the
Description of choice: adjustable frequency drive to the torque characteristic
If Speed control, open loop [0] is selected, normal of the load. See par. 135 U/f ratio.
speed control is obtained (without feedback
signal) with automatic load and slip compensation
to ensure a constant speed at varying loads. If Constant torque [1] is selected, a load-dependent
Compensations are active, but may be disabled in V/Hz characteristic is obtained, in which output voltage
parameter 134 Load compensation and parameter and output frequency increase with increasing loads in
136 Slip compensation as required. order to maintain constant energy to the motor.
If Speed control, closed loop [1] is selected, better Select Variable torque low [2], Variable torque
speed accuracy is obtained. A feedback signal must medium [3] or Variable torque high [4], if the load
be added, and the PID regulator must be set in is square (centrifugal pumps, fans).
parameter group 400 Special functions. If a higher break-away torque is required than the
If Process control, closed loop [3] is selected, the three previous choices provide, select Variable
internal process regulator is activated to enable precise torque - low with CT start [5], - medium with CT
control of a process in relation to a given process start [6] or high with CT start [7].
signal. The process signal can be set to the relevant NOTE
process unit or as a percentage. A feedback signal Load and slip compensation are not active
must be added from the process and the process if variable torque or special motor mode
regulator must be set in parameter group 400 Special have been selected.
functions. Process closed loop is not active if a
DeviceNet card is mounted and Instance 20/70 or
21/71 is chosen in parameter 904 Instance types.
101 Torque characteristic

(TORQUE CHARACT)
Value:
✭Constant torque
(CONSTANT TORQUE) [1]
Variable torque low
(TORQUE: LOW) [2]

VLT® 2800 Series
Select Special motor mode [8], if a special V/Hz Function:

setting is needed that is to be adapted to the present This is where to set the rated motor voltage.
motor. The break points are set in parameters
423-428 Voltage/frequency. Description of choice:
Select a value that corresponds to the nameplate
data on the motor, regardless of the adjustable
frequency drive’s AC line voltage.
NOTE
If a value set in the name-plate parameters
102-106 is changed, parameters 108 Stator
resistance and 109 Stator reactance change 104 Motor frequency fM,N
automatically. Enter motor name plate data in (MOTOR FREQUENCY)
sequence from parameter 102 to 106. The relationship Value:
between values are interdependent. 24-1000 Hz ✭ 60 Hz
102 Motor power PM,N Function:

(MOTOR POWER) This is where to select the rated motor frequency fM,N.
Value:
0.25 - 22 kW ✭ Depends on unit
Select a value that corresponds to the nameplate
Function: data on the motor.
Here you must set a power value [kW] PM,N,
corresponding to the motor’s rated power.
105 Motor current IM,N
(MOTOR CURRENT)
Set a value that matches the nameplate data on the
motor. Settings between one size below and one Value:
size over the factory setting are possible. 0.01 - IMAX ✭ Depends on choice of motor
Programming
North American HP to kW Function:
Conversion Chart The nominal, rated current of the motor IM,N forms
HP kW part of the unit’s calculation for features such as
1/2 0.37 torque and motor thermal protection.
3/4 0.55
1 0.75 Description of choice:
1 1/2 1.1 Set a value that corresponds to the nameplate
2 1.5 data on the motor.
3 2.2
4 3.0
5 4
7 1/2 5.5 106 Rated motor speed
10 7.5 (MOTOR NOM. SPEED)
Value:
100 - fM,N x 60 (max. 60000 rpm)
✭ Depends on parameter 102 Motor power, PM,N
103 Motor voltage UM,N
(MOTOR VOLTAGE) Function:
Value: This is where to set the value that corresponds
to the rated motor speed that can be read
For 200 V units: 50 - 999 V ✭ 230 V
from the nameplate data.
For 400 V units: 50 - 999 V ✭ 400 V

VLT® 2800 Series
Description of choice: 108 Stator resistance RS

Enter a value that corresponds to the nameplate (STATOR RESISTAN)
data on the motor. Value:
0.000 - X.XXX
NOTE
✭ Depends on choice of motor
The maximum value equals the nominal
frequency x 60 as set in parameter 104 Function:
Motor frequency. After setting of parameters 102-106 Nameplate data,
a number of adjustments of various parameters is
carried out automatically, including stator resistance
107 Automatic motor tuning , AMT
RS. A manually entered RS must apply to a cold
(AUTO MOTOR TUN.) motor. The shaft performance can be improved by
Value: fine-tuning RS and XS, see procedure below.
✭Optimisation off (AMT OFF) [0]
Optimisation on (AMT START) [2] NOTE
Parameters 108 Stator resistance RS and 109
Function: Stator reactance XS are normally not to be
changed if nameplate data has been set.
NOTE
AMT is not possible on VLT 2880-82. Description of choice:
RS can be set as follows:
- For AMT to define the motor parameters 1. Use the factory settings of RS which the adjustable
acccurately, the correct nameplate data for the frequency drive itself chooses on the basis
motor connected to the adjustable frequency drive of the motor nameplate data.
must be keyed into parameters 102 to 106. 2. The value is stated by the motor supplier.
- Alarms will appear in the display if faults arise 3. The value is obtained through manual
during tuning of the motor. See Warnings/alarms measurements: RS can be calculated by measuring
messages in this manual. the resistance RPHASE-PHASE between two phase
- As a rule, the AMT function can measure the RS terminals. Where RPHASE-PHASE is lower than 1-2
values for motors that are 1-2 sizes larger or smaller Ohms (typical for motors > 7.5 HP, 400 V), a special
than the adjustable frequency drive’s nominal size. Ohm-meter should be used (Thomson-bridge or
- If you wish to interrupt automatic motor tuning, similar). RS = 0.5 x RPHASE-PHASE.
press the [STOP/RESET] key. 4. RS is set automatically when AMT has been
completed. See parameter 107 Auto motor tuning.
NOTE 109 Stator reactance XS

AMT may not be performed on motors (STATOR REACTANCE)
connected in parallel, nor may setup changes Value:
be made while AMT is running. 0.00 - X.XX
✭ Depends on choice of motor
See Automatic motor tuning in this manual
for the AMT procedure. Function:
Description of choice: After setting of parameters 102-106 Nameplate data,
stator reactance XS is calculated automatically by the
Select Optimization on [2] as part of the AMT
adjustable frequency drive. Shaft performance can be
procedure if you want the adjustable frequency drive
improved by fine tuning XS, see options below.
to perform automatic motor tuning.

VLT® 2800 Series
NOTE
Parameter 109 Stator reactance XS is
normally not changed if nameplate data
has been programmed.
XS can be set as follows:
1. Use the factory settings of XS programmed

into the adjustable frequency drive from the
motor nameplate data.
2. The value stated by the motor supplier.
3. The value is obtained through manual
measurements XS is obtained by connecting a
motor to AC line and measuring the phase-phase
voltage UM and the idle current .
When the motor current falls below 10% of nominal,
the motor voltage is decreased to the limit set in this
parameter. When the current draw exceeds 20%,
117 Resonance damping
voltage is increased proportionally until reaching
(RESONANCE DAMPING) the normal U/F ratio. The change rates equal a
Value: rate of 500ms from 0 to nominal. Above 40%
OFF - 100% [OFF - 100] motor current, the motor voltage is immediately
✭OFF % [OFF] increased to the nominal U/F ratio.
Function: Description of choice:

Resonance damping is used to minimize high frequency Set this value to reduce the motor voltage to frequency
Programming
electrical motor resonance when the converter is ratio between 0% and 100%. Increase or decrease the
operating under light load in constant torque mode. percentage as necessary to minimize motor resonance.
The converter reduces the voltage applied to the 100% corresponds to a 50% reduction of the U/F ratio.
motor when current draw is low. The minimum voltage
value can be adjusted between 0% (OFF) and 100%.
100% corresponds to a 50% reduction of the motor
119 High start torque
voltage in the U/F ratio. Changes to the motor voltage
are made as shown in the table below. (HIGH START TORQ.)
Value:
0.0 - 0.5 sec. ✭ 0.0 sec.
Function:
A high starting torque, approx.1.8 x inverter
current, can be permitted for a maximum of 0.5
seconds. The current is, however, limited by the
adjustable frequency drive inverter’s safety limit 0
sec. corresponds to no high start torque.
Set the necessary time for which a high start
torque is required.
VLT® 2800 Series
120 Start delay delay time. Regardless of the value assumed by

(START DELAY) the reference signal, the output frequency equals
Value: the setting in parameter 130 Start frequency and
the output voltage will correspond to the setting
0.0 - 10.0 sec. ✭ 0.0 sec.
in parameter 131 Voltage at start.
Function: This functionality is typically used in hoist applications.
This parameter enables a delay of the start-up time It is used in particular in applications in which a cone
after the conditions for start have been fulfilled. When anchor motor is applied, where the direction of rotation
the time has passed, the output frequency will start is to start clockwise followed by the reference direction.
by ramping up to the reference. Select the mode of
Select Start frequency/voltage in reference direction
start delay in parameter 121 Start function.
[4] to obtain the function described in parameter
Description of choice: 130 Start frequency and 131 Voltage at start
Set the necessary time before commencing during the start delay time.
to accelerate. The direction of motor rotation will always follow the
reference direction. If the reference signal equals zero,
the output frequency will equal 0 Hz, while the output
voltage will correspond to the setting in parameter
121 Start function 131 Voltage at start. If the reference signal is different
(START FUNCTION) from zero, the output frequency will equal parameter
Value: 130 Start frequency and the output voltage will equal
DC hold during start delay time parameter 131 Voltage at start. This functionality is
(DC HOLD/DELAY TIME) [0] used typically for hoist applications with counterweight.
DC brake during start delay time It is used in particular for applications in which a
(DC BRAKE/DELAY TIME) [1] cone anchor motor is applied. The cone anchor
✭Coasting during start delay time motor can break away using parameter 130 Start
(COAST/DELAY TIME) [2] frequency and parameter 131 Voltage at start.
Start frequency/voltage clockwise
(CLOCKWISE OPERATION) [3]
Start frequency/voltage in reference direction
122 Function at stop
(VERTICAL OPERATION) [4]
(FUNCTION AT STOP)
Function: Value:
Choose the required mode during the start delay ✭Coasting (COAST) [0]
time (parameter 120 Start delay time). DC hold (DC HOLD) [1]
Description of choice: Function:

Select DC hold during start delay time [0] to energize Determines the function of the drive after the output
the motor with a DC hold voltage during the start delay frequency has become lower than the value in
time. Set voltage in parameter 137 DC hold voltage. parameter 123 Min. frequency for activation of function
at stop or after a stop command and when the output
Choose DC brake during start delay time [1] to energize frequency has been ramped down to 0 Hz.
the motor with a DC brake voltage during the start delay
time. Set voltage in parameter 132 DC brake voltage. Description of choice:
Select Coasting [0] if the unit is to ’let go’ of
Choose Coasting during start delay time [2] and the
the motor (inverter turned off).
motor will not be controlled by the drive during the start
delay time. The output of the inverter will be turned off. Select DC hold [1] if parameter 137 DC hold
voltage is to be activated.
Choose Start frequency/voltage clockwise [3] to
obtain the function described in parameters 130
Start frequency and 131 Voltage at start during start

VLT® 2800 Series
123 Min. frequency for activation of ETR warning 1 (ETR WARNING 1) [3]
function at stop ETR trip 1 (ETR TRIP 1) [4]
(MIN.F.FUNC.STOP) ETR warning 2 (ETR WARNING 2) [5]
Value: ETR trip 2 (ETR TRIP 2) [6]
0.1 - 10 Hz ✭ 0.1 Hz ETR warning 3 (ETR WARNING 3) [7]
ETR trip 3 (ETR TRIP 3) [8]
Function: ETR warning 4 (ETR WARNING 4) [9]
Choose the output frequency at which the ETR trip 4 (ETR TRIP 4) [10]
function selected in parameter 122 Function
at stop is to be activated. Function:
The adjustable frequency drive can monitor the
Description of choice: motor temperature in two different ways:
Set the required output frequency.
- Via a PTC thermistor that is mounted on the motor.
The thermistor is connected between terminal 50
(+10V) and one of the digital input terminals 18, 19,
126 DC brake time 27 or 29. See parameter 300 Digital inputs.
(DC BRAKING TIME) - Thermal load calculation (ETR - Electronic
Value: Thermal Relay ), based on present load and
0 - 60 sec. ✭ 10 sec time. This is compared with the rated motor
current IM,N and rated motor frequency fM,N.
Function: The calculations take into account the need for
Select the DC brake time at which parameter 132 lower loading at low speeds due to the motor’s
DC brake voltage is to be active. internal ventilation being reduced.
Set the required time.
Programming
127 DC brake cut-in frequency
(DC BRAKE CUT-IN)
Value:
✭ fOFF
0.0 (OFF) - par. 202 Output frequency high limit, MAX
Function:
In this parameter, the DC brake cut-in frequency
is set at which the DC brake is to be activated in
connection with a stop command.
Description of choice: ETR functions 1-4 do not begin to calculate the load
Set the required frequency. until you switch to the Setup in which they have been
selected. This means that you can use the ETR function
even when changing between two or more motors.
128 Thermal motor protection
NOTE
(MOT.THERM PROTEC) The electronic thermal relay (ETR) in UL
Value: listed VLTs provides Class 20 motor overload
✭No protection (NO PROTECTION) [0] protection in accordance with the NEC in
Thermistor warning single motor applications when parameter 128
(THERMISTOR WARN) [1] is set for "ETR TRIP" and parameter 105 Motor
Thermistor trip (THERMISTOR TRIP) [2] current is set for rated motor current.
VLT® 2800 Series
Description of choice: 131 Initial voltage

Select No protection [0] if you do not want a warning (INITIAL VOLTAGE)
or trip when a motor is overloaded. Value:
Select Thermistor warning [1] if you want a warning 0.0 - 200.0 V ✭ 0.0 V
when the connected thermistor becomes too warm.
Select Thermistor trip [2] if you want a trip when the Function:
connected thermistor becomes too warm. Initial voltage is active for the time set in parameter 120
Select ETR WARNING if you want a warning when the Start delay, after a start command. This parameter can
motor is overloaded according to the calculations. be used for example for lifting/dropping applications.
You can also program the adjustable frequency drive
to give a warning signal via the digital output. Description of choice:
Select ETR Trip if you want a trip when the motor is Set the required voltage necessary to cut out the
overloaded according to the calculations. mechanical brake. It is assumed that parameter
Select ETR warning 1-4 if you want a warning when 121 Start function, is set to Start frequency/voltage
the motor is overloaded according to the calculations. clockwise [3] or Start frequency/voltage in reference
You can also program the adjustable frequency drive direction [4] and that in parameter 120 Start delay a
to give a warning signal via one of the digital outputs. time is set, and that a reference signal is present.
Select ETR Trip 1-4 if you want a trip when the motor
is overloaded according to the calculations.
132 DC brake voltage
NOTE
This function cannot protect the individual (DC BRAKE VOLTAGE)
motors in the case of motors linked in parallel. Value:
0 - 100% of max. DC brake voltage ✭ 0%
Function:
130 Start frequency
This parameter sets the DC brake voltage at which
(START FREQUENCY)
it is to be activated at stop when the DC brake
Value: frequency set in parameter 127 DC brake cut-in
0.0 - 10.0 Hz ✭ 0.0 Hz frequency is reached, or if DC braking inverse is
active via a digital input or via serial communication.
Function:
Subsequently, the DC brake voltage will be active for
The start frequency is active for the time set in
the time set in parameter 126 DC brake time.
parameter 120 Start delay, after a start command.
The output frequency will ’jump’ to the next preset Description of choice:
frequency. Certain motors, such as conical anchor To be set as a percentage value of the max. DC
motors, need an extra voltage/start frequency brake voltage, which depends on the motor.
(boost) at start to disengage the mechanical brake.
To achieve this parameters 130 Start frequency
and 131 Initial voltage are used.
133 Start voltage
Description of choice: (START VOLTAGE)
Set the required start frequency. It is a precondition Value:
that parameter 121 Start function, is set to 0.00 - 100.00 V ✭ Depends on unit
Start frequency/voltage clockwise [3] or Start
frequency voltage in reference direction [4] and Function:
that in parameter 120 Start delay a time is set A higher start torque can be obtained by increasing
and a reference signal is present. the start voltage. Small motors (<1.0 HP) normally
require a high start voltage.

VLT® 2800 Series
135 U/f-ratio
(U/F RATIO)
Value:
0.00 - 20.00 at Hz ✭ Depends on unit
Function:
This parameter enables a linear shift in the ratio
between output voltage (V) and output frequency
(f) to ensure correct energizing of the motor and
thus optimum dynamics, accuracy and efficiency.
The V/f-ratio only affects the voltage characteristic
Description of choice: if Constant torque [1] has been selected in
The factory setting will be suitable for most parameter 101 Torque characteristic.
applications. The value may need to be increase
gradually for high torque application.
Change the V/f-ratio only if it is not possible to set
Warning: Use of exaggerated start voltage the correct motor data in parameters 102-109.
may lead to over-energizing and overheating The value programmed in the factory settings
the motor. The drive may trip. is based on idle operation.
134 Load compensation

136 Slip compensation
(LOAD COMPENSATIO)
(SLIP COMP.)
Value:
Value:
0.0 - 300.0% ✭ 100.0% -500 - +500% of rated slip compensation
Function: ✭ 100%
Programming
In this parameter, the load characteristic is set. By
Function:
increasing the load compensation, the motor is given an
Slip compensation is calculated automatically, on the
extra voltage and frequency supplement at increasing
basis of such data as the rated motor speed nM,N.
loads. This is used e.g. in motors/applications in
In this parameter, the slip compensation can be fine
which there is a big difference between the full-load
tuned, thereby compensating for tolerances on the
current and idle-load current of the motor.
value for n M,N. Slip compensation is only active if a
NOTE selection has been made of Speed regulation, open
If this value is set too high, the drive may loop [0] in parameter 100 Configuration and Constant
trip due to overcurrent. torque [1] in parameter 101 Torque characteristic.
Key in a % value.
If the factory setting is not adequate, load
compensation must be set to enable the motor
to start at the given load.
137 DC hold voltage
Warning: Set to 0% in connection with (DC HOLD VOLTAGE)
synchronous and parallel-coupled motors
Value:
and in the cases of quick load changes. Too
0 - 100% of max. DC hold voltage ✭ 0%
high load compensation may lead to instability.
Function:
This parameter is used to keep the motor
(holding torque) at start/stop.
VLT® 2800 Series

This parameter can only be used if a selection has been This is an extra safety precaution, aimed at
made of DC hold in parameter 121 Start function or 122 guaranteeing that the load is not lost during
Function at stop. Set as a percentage value of the max. a lifting/lowering operation.
DC hold voltage, which depends on the choice of motor.
142 Spread reactance XL

138 Brake cut out value (LEAK. REACTANCE)
(BRAKE CUT OUT) Value:
Value: 0.000 - XXX.XXX
0.5 - 132.0/1000.0 Hz ✭ 3.0 Hz ✭ Depends on choice of motor
Function: Function:
Select the frequency at which the external brake is After setting parameters 102-106 Nameplate data,
released, via the output defined in parameter 323 Relay a number of adjustments of various parameter is
output 1-3 or 341 Digital output, terminal 46. made automatically, including the spread reactance
XL. The shaft performance may be improved by
fine tuning the spread reactance XL.
Set the required frequency.
NOTE
Parameter 142 Spread reactance XL is normally
not changed if the nameplate data have been
139 Brake cut in frequency
set in parameters 102-106.
(BRAKE CUT IN)
Value: Description of choice:
0.5 - 132.0/1000.0 Hz ✭ 3.0 Hz XL can be set as follows:
Function: 1. The value stated by the motor supplier.

Select the frequency at which the external brake 2. Use the factory settings of XL which the drive itself
is activated; this takes place via the output chooses on the basis of the motor nameplate data.
defined in parameter 323 Relay output 1-3 or
341 Digital output terminal 46.
143 Internal fan control
Description of choice: (FAN CONTROL)
Set the required frequency. Value:
✭Automatic (AUTOMATIC) [0]
Always switched on (ALWAYS ON) [1]
140 Current, minimum value Always switched off (ALWAYS OFF) [2]
(CURRENT MIN.VAL.)
Function:
Value: This parameter can be set so that the internal fan is
0 % of Inom - 100 % of Inom ✭ 0 % automatically switched on and off. You can also set the
internal fan to be permanently switched on or off.
Function:
This is where the user selects the minimum motor Description of choice:
current running for the mechanical brake to be If Automatic [0] is selected, the internal fan is switched
released. Current monitoring is only active from stop on or off depending on the ambient temperature and
until the point when the brake is released. the loading of the adjustable frequency drive.
If Always switched on [1] or Always switched off
[2] is selected, the internal fan will be permanently
switched on or off, respectively.

VLT® 2800 Series
motors. It is an advantage that the motor and the

NOTE
adjustable frequency drive are always synchronized.
If Always switched off [2] is selected in
combination with high switch frequency,
long motor cables or high output power, the
adjustable frequency drive’s life span is reduced. This
applies in particular to 1.5, 2, 4 and 5 HP units.
144 Gain AC brake

(GAIN AC BRAKE)
Value:
1.00 - 1.50 ✭ 1.30
Function:
This parameter is used to set the AC brake. Usingthis
function, it is possible to adjust the size of the generator
torque that can be applied to the motor without the
DC bus voltage exceeding the warning level.
The value is increased if a greater possible brake
torque is required. If 1.0 is selected, this corresponds
to the AC brake being inactive.
If the value in par. 144 is increased, the

motor current will simultaneously increase
significantly when generator loads are
Programming
applied. The parameter should therefore only be
changed if it is guaranteed during measurement
that the motor current in all operating situations
will never exceed the maximum permitted current
in the motor. Please note: that the current cannot
be read out from the display.
146 Reset voltage vector

(RESET VECTOR)
Value:
*Off (OFF) [0]
Reset (RESET) [1]
Function:
When the voltage vector is reset it is set to the same
starting point each time a new process commences.
Select reset (1) when running unique processes each
time they arise. This will enable repetitive precision
when stopping to be improved. Select Off (0) for
example for lifting/lowering operations or synchronous
VLT® 2800 Series
■ References & Limits NOTE

For drives with a bypass, direction of rotation
200 Output frequency range must be checked for both drive and bypass.
(OUT FREQ. RNG/ROT) Direction of rotation in bypass can only be
changed by swapping two motor leads. Ensure that
Value:
bypass rotation is correct prior to setting drive rotation.
✭Only clockwise, 0 - 132 Hz
(132 HZ CLOCKWISE) [0]
Both directions, 0 - 132 Hz 201 Output frequency low limit, fMIN
(132 HZ BOTH DIRECT) [1]
(MIN OUTPUT FREQ)
Counter clockwise only, 0 - 132 Hz
Value:
(132 HZ COUNTER CLOCK) [2]
0.0 - fMAX ✭ 0.0 Hz
Clockwise only, 0 - 1000 Hz
(1000 HZ CLOCK WISE) [3] Function:
Both directions, 0 - 1000 Hz In this parameter, a minimum motor frequency limit can
(1000 HZ BOTH DIRECT) [4] be selected that corresponds to the minimum speed
Counter clockwise only, 0 - 1000 Hz at which the motor is allowed to run. If Both directions
(1000 HZ COUNTER CLOCK) [5] has been selected in parameter 200 Output frequency
range, the minimum frequency is of no significance.
Function:
This parameter can protect against unwanted Description of choice:
reversing. Furthermore, the maximum output frequency
The value chosen can range from 0.0 Hz to
can be selected that will apply regardless of the
the frequency set in parameter 202 Output
settings of other parameters. This parameter has no
frequency high limit, fMAX.
function if Process regulation, closed loop has been
selected in parameter 100 Configuration. NOTE
For fan applications, a minimum frequency
setting of 6 Hz is recommended. For
Select the required direction of rotation as well as pump applications, a minimum setting
the maximum output frequency. Please note that of 18 Hz is recommended.
if Clockwise only [0]/[3] or counter clockwise only
[2]/[5] is selected, the output frequency will be limited
to the range fMIN-fMAX. If Both directions [1]/[4] is 202 Output frequency high limit, fMAX
selected, the output frequency will be limited to the (MAX. OUTPUT FREQUENCY)
range ± the maximum frequency. The minimum Value:
frequency will have no significance. fMIN - 132/1000 Hz (par. 200 Output frequency range)
✭ 132 Hz
Function:
In this parameter, a maximum output frequency limit
can be selected that corresponds to the highest
speed at which the motor is allowed to run.
NOTE
The output frequency of the drive can never
assume a value higher than 1/10 of the switching
frequency (parameter 411 Switching frequency).

VLT® 2800 Series
Description of choice: Par. 100 Configuration Unit

A value can be selected from fMIN to the value chosen Open loop [0] Hz
in parameter 200 Output frequency range. Speed reg, closed loop [1] rpm
Process reg, closed loop [3] Par. 416
203 Reference range Description of choice:

(REFERENCE RANGE) The minimum reference is preset if the motor
Value: has to run at a minimum speed, regardless of
whether the resulting reference is 0.
✭Min. reference - Max reference
(MIN - MAX) [0]
-Max. reference - Max. reference
(-MAX - +MAX) [1] 205 Maximum reference, RefMAX
(MAX.REFERENCE)
Function:
Value:
In this parameter you select whether the reference
Par. 100 Config. = Open loop [0].
signal must be positive or whether it can be both
Par. 204 RefMIN - 1000.000 Hz ✭ 50.000 Hz
positive and negative. The minimum limit may be a
negative value, unless in parameter 100 Configuration
a selection has been made of Speed regulation,
Par. 100 Config. = Closed loop [1]/[3].
closed loop. You should select Min ref. - Max. ref.
Par. 204 RefMIN - Par. 415 Max. feedback
[0], if Process regulation, closed loop [3] has been
selected in parameter 100 Configuration. ✭ 50.000 rpm/par 416
Description of choice: Function:

The maximum reference gives the highest value that
Select the required range.
can be assumed by the sum of all references. If Closed
loop [1]/[3] is selected in parameter 100 Configuration
Programming
the maximum reference cannot exceed the value
204 Minimum reference , RefMIN in parameter 415 Maximum feedback.
(MIN.REFERENCE) Maximum reference is ignored if the local
Value: reference is active.
Par. 100 Config. = Open loop [0].
The reference unit can be defined from the
-100,000.000 - par. 205 RefMAX ✭ 0.000 Hz
following table:
Par. 100 Config. = Closed loop [1]/[3]. Par. 100 Configuration Unit
-Par. 414 Minimum feedback - par. 205 RefMAX Open loop [0] Hz
✭ 0.000 rpm/par 416 Speed reg, closed loop [1] rpm
Process reg, closed loop [3] Par. 416
Function:
Minimum reference is an expression of the minimum Description of choice:
possible value of the total of all references. If in
Maximum reference is set, if the speed of the
parameter 100 Configuration, Speed regulation,
motor is to be the max. of the set value, regardless
closed loop [1] or Process regulation, closed loop
of the whether the resulting reference is greater
[3] is selected, the minimum reference is limited by
than the maximum reference.
parameter 414 Minimum feedback. Minimum reference
is ignored if the local reference is active.
The reference unit can be defined from the

following table:
VLT® 2800 Series
206 Ramp type Description of choice:

(RAMP TYPE) Set the required ramp-up time.
Value:
✭Linear (LINEAR) [0]
Sine shaped (S-SHAPED) [1] 208 Ramp-down time 1
Sine2 shaped (S-SHAPED 2) [2] (RAMP DOWN TIME 1)
Function: Value:
You can choose between a linear, a sine-shaped 0.02 - 3600.00 sec ✭ 3.00 sec
and a sine2-shaped ramp process.
Function:
Description of choice: The ramp-down time is the deceleration time
Select the required ramp type depending on from the rated motor frequency fM,N (parameter
requirementsfor the acceleration/deceleration process. 104 Motor frequency, fM,N) to 0 Hz, provided
no overvoltage arises in the inverter because of
generating operation of the motor.
Set the required ramp-down time.
209 Ramp-up time 2

(RAMP UP TIME 2)
Value:
0.02 - 3600.00 sec. ✭ 3.00 sec
Function:
See description of parameter 207 Ramp-up time 1.
207 Ramp-up time 1
Set the required ramp-up time. Shift from ramp 1 to
(RAMP-UP TIME 1)
ramp 2 by activating Ramp 2 via a digital input.
Value:
0.02 - 3600.00 sec ✭ 3.00 sec
Function: 210 Ramp-down time 2

The ramp-up time is the acceleration time from 0 (RAMP DOWN TIME 2)
Hz to the rated motor frequency fM,N (parameter Value:
104 Motor frequency, fM,N). It is assumed that the 0.02 - 3600.00 sec. ✭ 3.00 sec
output current will not reach the current limit (set
in parameter 221 Current limit ILIM). Function:
See description of parameter 208 Ramp-down time 1.
Set the required ramp-down time. Shift from ramp 1 to
ramp 2 by activating Ramp 2 via a digital input.

VLT® 2800 Series
211 Jog ramp time 213 Jog frequency

(JOG RAMP TIME) (JOG FREQUENCY)
Value: Value:
0.02 - 3600.00 sec. ✭ 3.00 sec 0.0 - Par. 202 Output frequency high limit, fMAX
✭ 10.0 Hz
Function:
The jog ramp time is the acceleration/deceleration Function:
time from 0 Hz to the rated motor frequency fM,N Jog frequency fJOG means a fixed output frequency
(parameter 104 Motor frequency, fM,N). It is assumed that the adjustable frequency drive supplies to the
that the output current will not reach the current limit motor when the Jog function is activated. Jog can be
(set in parameter 221 Current limit ILIM). activated via the digital inputs, serial communication
or via the LCP control panel, on the condition that
this is active in parameter 015 Local jog.
214 Reference function

(REFERENCE FUNCTION)
Value:
✭Sum (SUM) [0]
Relative (RELATIVE) [1]
The jog ramp time starts if a jog-signal is given via
External/preset (EXTERNAL/PRESET) [2]
the optional LCP 2 control panel, one of the digital
inputs or the serial communication port. Function:
Programming
It is possible to define how preset references are to
be added to the other references; for this purpose,
Set the required ramp time.
use Sum or Relative. It is also possible by using the
External/preset to select whether a shift between
external references and preset references is required.
212 Quick-stop ramp-down time External reference is the sum of the analog
(Q STOP RAMP TIME) references, pulse references and any references
Value: from serial communication.
0.02 - 3600.00 sec. ✭ 3.00 sec Description of choice:
Function: If Sum [0] is selected, one of the adjusted
The quick-stop ramp-down time is the deceleration preset references (parameters 215-218 Preset
time from the rated motor frequency to 0 Hz, provided reference) is summarized as a percentage of
no overvoltage arises in the inverter because of the reference range (RefMIN - RefMAX), added to
generating operation of the motor, or if the generated the other external references.
current exceeds the current limit in parameter 221 If Relative [1] is selected, one of the added preset
Current limit ILIM. Quick-stop is activated via one of references (parameters 215-218 Preset reference)
the digital inputs or the serial communication. is summarized as a percentage of the sum of
present external references.
Description of choice: If External/preset [2] is selected, it is possible via
Set the required ramp-down time. a digital input to shift between external references
VLT® 2800 Series
or preset references. Preset references will be a Description of choice:

percentage value of the reference range. If Catch up is active via a digital input, the percentage
value in parameter 219 Catch up/Slow down reference
NOTE
will be added to the remote-controlled reference.
If Sum or Relative is selected, one of the
If Slow down is active via a digital input, the percentage
preset references will always be active. If the
value in parameter 219 Catch up/Slow down reference
preset references are to be without influence,
will be deducted from the remote controlled reference.
they must be set to 0% (factory setting).
Activate the function in parameters 302 through 307.
215 Preset reference 1 (PRESET REF. 1)

216 Preset reference 2 (PRESET REF. 2) 221 Current limit , ILIM
217 Preset reference 3 (PRESET REF. 3) (CURRENT LIMIT)
218 Preset reference 4 (PRESET REF. 4) Value:
Value: 0 - XXX.X % of par. 105 ✭ 160 %
-100.00% to +100.00% ✭ 0.00%
Function:
of the reference range/external reference
In this parameter, the maximum output current ILIM is
Function: set. The factory-set value corresponds to the maximum
Four different preset references can be programmed output current IMAX. If the current limit is to be used
in parameters 215-218 Preset reference. as motor protection, set the rated motor current. If
The preset reference is stated as a percentage of the the current limit is set above 100% (the rated output
reference range (RefMIN - RefMAX) or as a percentage current of the drive, IINV.), the unit can only handle a load
of the other external references, depending on the intermittently, i.e. for short periods at a time. After the
choice made in parameter 214 Reference function. load has been higher than IINV., it must be ensured that
The choice between preset references can be made for a period the load is lower than IINV. Please note that
via the digital inputs or via serial communication. if the current limit is set at a lower value than IINV., the
acceleration torque will be reduced to the same extent.
Preset ref., msb Preset ref. lsb
0 0 Preset ref. 1 Description of choice:
0 1 Preset ref. 2 Set the required maximum output current ILIM.
1 0 Preset ref. 3
1 1 Preset ref. 4
223 Warning: Low current, ILOW

(WARN. CURRENT LO)
Set the options for the preset reference(s).
Value:
0.0 - par. 224 Warning: High current, IHIGH ✭ 0.0 A
219 Catch up /Slow down reference Function:

(CATCH UP/SLW DWN) If the output current falls below the preset limit
Value: ILOW a warning is given.
0.00 - 100% of the given reference ✭ 0.00% Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
Function: after a stop command or during stop. The warning
In this parameter, the percentage value can be set functions are activated when the output frequency
which will either be added to or deducted from reaches the resulting reference. The signal outputs
the remote-controlled references. can be programmed to give a warning signal via
The remote-controlled reference is the sum of preset terminal 46 and via the relay output.
references, analog references, pulse reference and
any references from serial communication.

VLT® 2800 Series
Description of choice: 225 Warning: Low frequency, fLOW

The lower signal limit of the output current (WARN.FREQ. LOW)
ILOW must be programmed within the normal Value:
working range of the unit. 0.0 - par. 226
Warn.: High frequency, fHIGH ✭ 0.0 Hz
Function:
If the output frequency falls below the preset
limit fLOW, a warning is given.
Parameters 223-228 Warning functions are inactive
during ramp up after a start command, after a
stop command or during a stop. The warning
functions are activated when the output frequency
reaches the resulting reference. The signal outputs
can be programmed to give a warning signal via
terminal 46 and via the relay output.
The lower signal limit of the output frequency fLOW
must be programmed within the normal operating
224 Warning: High current, IHIGH
range of the adjustable frequency drive. See drawing
(WARN. CURRENT HI) at parameter 223 Warning: Low current, ILOW.
Value:
Par. 223 Warn.: Low current, ILOW - IMAX ✭ IMAX
Function: 226 Warning: High frequency fHIGH

If the output current exceeds the preset limit (WARN.FREQ.HIGH)
Programming
IHIGH a warning is given. Value:
Parameters 223-228 Warning functions are inactive Par. 200 Frequency range = 0-132 Hz [0]/[1].
during ramp up after a start command, after a par. 225 fLOW - 132 Hz ✭ 132.0 Hz
stop command or during a stop. The warning
reaches the resulting reference. The signal outputs Par. 200 Frequency range = 0-1000 Hz [2]/[3].
can be programmed to give a warning signal via par. 225 fLOW - 1000 Hz ✭ 132.0 Hz
Function:
Description of choice: If the output frequency exceeds the preset limit
The output current’s upper signal limit IHIGH must fHIGH a warning is given.
be programmed within the adjustable frequency Parameters 223-228 Warning functions are inactive
drive’s normal operating range. See drawing at during ramp up after a start command, after a
parameter 223 Warning: Low current, ILOW. stop command or during a stop. The warning
reaches the resulting reference. The signal outputs
can be programmed to give a warning signal via
The output frequency’s upper signal limit fHIGH must
be programmed within the adjustable frequency
VLT® 2800 Series
drive’s normal operating range. See drawing at 229 Frequence bypass, bandwidth
parameter 223 Warning: Low current, ILOW. (FREQ BYPASS B.W.)
Value:
0 (OFF) - 100 Hz ✭ 0 Hz
227 Warning: Low feedback, FBLOW
Function:
(WARN.FEEDB. LOW)
Some systems call for certain output frequencies
Value:
to be avoided because of mechanical resonance
-100,000.000 - par. 228 Warn.:FBHIGH ✭ -4000.000
problems in the system. In parameters 230-231
Frequency bypass these output frequencies can be
Function:
programmed. In this parameter a bandwidth can be
If the feedback signal falls below the preset limit
defined on either side of these frequencies.
FBLOW, a warning is given.
Parameters 223-228 Warning functions are inactive Description of choice:
during ramp up after a start command, after a stop
The frequency set in this parameter will be centered
command or during a stop. The warning functions
around parameters 230 Frequency bypass 1
are activated when the output frequency has reached
and 231 Frequency bypass 2.
the resulting reference. The signal outputs can be
programmed to give a warning signal via terminal 46
and via the relay output. The unit for feedback in Closed
loop is programmed in parameter 416 Process units. 230 Frequency bypass 1 (FREQ. BYPASS 1)
231 Frequency bypass 2 (FREQ. BYPASS 2)
Value:
Set the required value within the feedback range 0 - 1000 Hz ✭ 0.0 Hz
(parameter 414 Minimum feedback, FBMIN and
415 Maximum feedback, FBMAX). Function:
Some systems call for certain output frequencies
to be avoided because of mechanical resonance
228 Warning: High feedback, FBHIGH problems in the system.
(WARN.FEEDB HIGH) Description of choice:

Value: Enter the frequencies to be avoided. See also
Par. 227 Warn.: FBLOW - 100,000.000 ✭ 4000.000 parameter 229 Frequency bypass, bandwidth.
Function:
If the feedback signal gets above the preset
limit FBHIGH, a warning is given.
Parameters 223-228 Warning functions are inactive
during ramp up after a start command, after a stop
command or during a stop. The warning functions
are activated when the output frequency reaches
the resulting reference. The signal outputs can be
programmed to give a warning signal via terminal 46
and via the relay output. The unit for feedback in Closed
loop is programmed in parameter 416 Process units.
Set the required value within the feedback range
(parameter 414 Minimum feedback, FBMIN and
415 Maximum feedback, FBMAX).

VLT® 2800 Series
■ Inputs and Outputs
D ig i t al i n p u t s Te rm . no. 181 1 91 27 29 33
par. no . 302 30 3 30 4 3 05 307
Value:
No function (NO OPERATION) [0] [0] [0] [0] ✭[0]
Reset (RESET) [1] [1] [1] [1] [1]
Coasting stop inverse (MOTOR COAST INVERSE) [2] [2] [2] [2] [2]
Reset and coasting inverse (RESET AND COAST INV.) [3] [3] ✭[3] [3] [3]
Quick-stop inverse (QUICK-STOP INVERSE) [4] [4] [4] [4] [4]
DC braking inverse (DC-BRAKE INVERSE) [5] [5] [5] [5] [5]
Stop inverse (STOP INVERSE) [6] [6] [6] [6] [6]
Start (START) ✭[7] [7] [7] [7] [7]
Pulse start (LATCHED START) [8] [8] [8] [8] [8]
Reversing (REVERSING) [9] ✭[9] [9] [9] [9]
Reversing and start (START REVERSING) [10] [10] [10] [10] [10]
Start clockwise (ENABLE FORWARD) [11] [11] [11] [11] [11]
Start counterclockwise (ENABLE REVERSE) [12] [12] [12] [12] [12]
Jog (JOGGING) [13] [13] [13] ✭[13] [13]
Freeze reference (FREEZE REFERENCE) [14] [14] [14] [14] [14]
Freeze output frequency (FREEZE OUTPUT) [15] [15] [15] [15] [15]
Speed up (SPEED UP) [16] [16] [16] [16] [16]
Speed down (SPEED DOWN) [17] [17] [17] [17] [17]
Catch-up (CATCH-UP) [19] [19] [19] [19] [19]
Slow-down (SLOW-DOWN) [20] [20] [20] [20] [20]
Ramp 2 (RAMP 2) [21] [21] [21] [21] [21]
Preset ref, LSB (PRESET REF, LSB) [22] [22] [22] [22] [22]
Preset ref, MSB (PRESET REF, MSB) [23] [23] [23] [23] [23]
Programming
Preset reference on (PRESET REFERENCE ON) [24] [24] [24] [24] [24]
Thermistor (THERMISTOR) [25] [25] [25] [25]
Precise stop, inverse (PRECISE STOP INV.) [26] [26]
Precise start/stop (PRECISE START/STOP) [27] [27]
Pulse reference (PULSE REFERENCE) [28]
Pulse feedback (PULSE FEEDBACK) [29]
Pulse input (PULSE INPUT) [30]
Selection of Setup, lsb (SETUP SELECT LSB) [31] [31] [31] [31] [31]
Selection of Setup, msb (SETUP SELECT MSB) [32] [32] [32] [32] [32]
Reset and start (RESET AND START) [33] [33] [33] [33] [33]
Pulse counter start (PULSE COUNTER START) [34] [34]
Terminals 18 and 19 are controlled by an interrupt,
which means that the accuracy of the response time
is constant. This results in a precise stop function
that can be used for start/stop, setup switching,
and for changing digital preset, such as to obtain an
reproducable stop point when using creep speed.
VLT® 2800 Series
Function:
In these parameters 302-307 Digital inputs it is
possible to choose the functions of the digital
inputs (terminals 18-33).
No operation is selected if the adjustable frequency
drive is not to react to signals transmitted to the terminal.
Reset resets the adjustable frequency drive after

an alarm. Some alarms cause a trip lock and
Latched start, if a pulse is applied for min. 14 ms, the
cannot be reset without first disconnecting the AC
adjustable frequency drive will start the motor, provided
line supply and reconnecting it. See table under
no stop command has been given. The motor can
List of warnings and alarms. Reset is activated
be stopped by briefly activating Stop inverse.
on the leading edge of the signal.
Reversing is used for changing the direction of
Coasting stop inverse is used for making the adjustable
rotation of the motor shaft. Logic ’0’ will not lead
frequency drive ’let go’ of the motor immediately (output
to reversing . Logic ’1’ will lead to reversing. The
transistors are ’turned off’), which means that the motor
reverse signal only changes the direction of rotation, it
coasts to a stop. Logic ’0’ means coasting to stop.
does not activate the start. Is not active at Process
Reset and coasting inverse are used to activate regulation, closed loop. See also parameter 200
motor coast simultaneously with reset. Logical Output frequency range/direction.
’0’ means motor coast stop and reset. Reset
Reversing and start is used for start/stop and for
is activated on the falling edge.
reversing with the same signal. No active start
Quick stop inverse is used for activating the quick-stop command is allowed at the same time. It is not
ramp down set in parameter 212 Quick stop active for Process regulation, closed loop. See also
ramp-down time. Logic ’0’ leads to quick stop. parameter 200 Output frequency range/direction.
DC-braking inverse is used for stopping the motor by Start clockwise can be used to set the direction of
energizing it with a DC voltage for a given time, see the rotation of the motor. Do not use in conjunction
parameters 126, 127 and 132 DC brake. Please note with a closed loop process. See parameter 200,
that this function is only active if the value in parameter Output frequency range/direction.
126 DC braking time and 132 DC brake voltage is
Start counterclockwise can be used to set the
different from 0. Logic ’0’ leads to DC braking.
direction of the rotation of the motor. Do not use in
Stop inverse, a logic ’0’ means that the motor speed conjunction with a closed loop process. See parameter
is ramped down to stop via the selected ramp. 200, Output frequency range/direction.
None of the stop commands listed above Jog is used to override the output frequency
removes power from the drive. The to the jog frequency set in parameter 213 Jog
adjustable frequency may have other frequency. Jog is active regardless of whether a
voltage inputs through DC-bus terminals. An external start command has been given, yet not when Coast
input disconnect switch must be opened. Wait 4 stop, Quick-stop or DC braking are active.
minutes before servicing the drive.
Freeze reference freezes the present reference. The
Start is selected if a start/stop command is required. reference can now only be changed via Speed up and
Logic ’1’ = start, logic ’0’ = stop. Speed down. If freeze reference is active, it will be saved
after a stop command and in the event of AC line failure.
Freeze output freezes the present output frequency

(in Hz). The output frequency can now only be
changed via Speed up and Speed down.

VLT® 2800 Series
NOTE Preset ref. Preset ref. Function

If Freeze output is active the adjustable msb lsb
frequency drive can only be stopped by 0 0 Preset ref. 1
selecting Motor coast, Quick stop or DC 0 1 Preset ref. 2
braking via a digital input. 1 0 Preset ref. 3
1 1 Preset ref. 4
Speed up and Speed down are selected if digital
control of the up/down speed is required. This Preset reference on is used for shifting between
function is only active if Freeze reference or Freeze remote-controlled reference and preset reference.
output frequency has been selected. It is assumed that External/preset [2] has been
If Speed up is active the reference or output frequency selected in parameter 214 Reference function. Logic
will be increased, and if Speed down is active the ’0’ = remote-controlled references are active, logic
reference or output frequency will be reduced. The ’1’ = one of the four preset references is active,
output frequency is changed via the preset ramp as can be seen from the table above.
times in parameters 209-210 Ramp 2.
One pulse (logic ’1’ minimum high for 14 ms Thermistor selects if a thermistor in the motor is to
and a minimum break time of 14 ms) will lead be able to stop the adjustable frequency drive if the
to a speed change of 0.1 % (reference) or 0.1 motor overheats. The cut-out value is 3 k .
Hz (output frequency). Example:
Term. Term. Freeze ref/ Function
29 33 freeze outp.
0 0 1 No speed change
0 1 1 Speed up
1 0 1 Speed down
1 1 1 Speed down
Programming
Freeze reference can be changed even if the adjustable
frequency drive has stopped. The reference will also
be saved if input power is disconnected.
If a motor has a Klixon thermal switch, this can also be
Catch-up/Slow-down is selected if the reference connected to the input. If motors operate in parallel,
value is to be increased or reduced by a the thermistors/thermal switches must be connected
programmable percentage value set in parameter in series (total resistance lower than 3 k ).
219 Catch-up/Slow-down reference. Parameter 128 Motor thermal protection must be
programmed for Thermistor warning [1] or Thermistor
Slow-down Catch-up Function
trip [2] and the thermistor is to be connected between
0 0 Unchanged speed
0 1 Increase by % value a digital input and terminal 50 (+ 10 V supply).
1 0 Reduce by % value
1 1 Reduce by % value
Ramp 2 is selected if a shift between ramp 1

(parameters 207-208) and ramp 2 (parameters
209-210) is required. Logic ’0’ leads to ramp 1
and logic ’1’ leads to ramp 2.
Precise stop, inverse is selected to obtain a high
Preset reference, lsb and Preset reference, msb degree of accuracy when a stop command is repeated.
makes it possible to select one of the four preset A logic 0 means that the motor speed is ramped
references, see the table below: down to stop via the selected ramp.
VLT® 2800 Series
Reference [1]. If this function is selected, the reference

Precise start/stop is selected to obtain a high degree of
can be changed by means of an analog reference
accuracy when a start and stop command is repeated.
signal. If reference signals are connected to more than
Pulse reference is selected if the reference one input, these reference signals must be added up.
signal applied is a pulse train (frequency). 0 Hz If a voltage feedback signal is connected, select
corresponds to parameter 204 Minimum reference, Feedback [2] on terminal 53.
RefMIN. The frequency set in parameter 327 Pulse
reference/feedback corresponds to parameter
205 Maximum reference RefMAX. 309 Terminal 53 Min. scaling
Pulse feedback is selected if the feedback signal (AI 53 SCALE LOW)
used is a pulse train (frequency). In parameter Value:
327 Pulse reference/feedback the maximum 0.0 - 10.0 Volt ✭ 0.0 Volt
pulse feedback frequency is set.
Function:
Pulse input is selected if a specific number of pulses This parameter is used for setting the signal value
must lead to a Precise stop, see parameter 343 that is to correspond to the minimum reference or
Precise stop and parameter 344 Counter value. the minimum feedback, parameter 204 Minimum
reference, RefMIN / 414 Minimum feedback, FBMIN.
Selection of Setup, lsb and Selection of Setup,
msb gives the possibility to select one of the Description of choice:
four setups. It is, however, a condition that Set the required voltage value. For reasons of accuracy,
parameter 004 is set to Multisetup. compensation should be made for voltage loss in long
signal cables. If the time out function is to be used
Reset and start can be used as a start function. If
(parameter 317 Time out and 318 Function after time
24 V is connected to the digital input, this will cause
out), the value set must be higher than 1 volt.
the adjustable frequency drive to reset and the motor
will ramp up to the preset reference.
Pulse counter start is used to start a counter stop 310 Terminal 53 Max. scaling
sequence with a pulse signal. The pulse width must at
(AI 53 SCALE HIGH)
least be 14 ms and not longer than the count period.
Value:
See also parameter 343 and the instruction, MI28CXYY.
0 - 10.0 Volt ✭ 10.0 Volt
Function:
308 Terminal 53, analog input voltage This parameter is used for setting the signal value
(AI [V]53FUNCT.) that is to correspond to the maximum reference value
Value: or maximum feedback, parameter 205 Maximum
No function (NO OPERATION) [0] reference, RefMAX / 414 Maximum feedback, FBMAX.
✭Reference (REFERENCE) [1] Description of choice:
Feedback (FEEDBACK) [2]
Set the required voltage value. For reasons of
Function: accuracy, compensation should be made for
In this parameter it is possible to select the function voltage losses in long signal cables.
connected to terminal 53. Scaling of the input signal
is made in parameter 309 Terminal 53, min. scaling
and parameter 310 Terminal 53, max. scaling. 314 Terminal 60, analog input current
(AI [MA] 60 FUNCT)
Value:
No function [0] is selected if the drive is not
✭No function (NO OPERATION) [0]
to react to signals connected to the terminal.
Reference (REFERENCE) [1]

VLT® 2800 Series
Feedback (FEEDBACK) [2] Description of choice:

Set the required current value.
Function:
This parameter allows a choice between the
different functions available for the input, terminal 60.
Scaling of the input signal is effected in parameter 317 Time out
315 Terminal 60, min. scaling and parameter (LIVE ZERO TIME O)
316 Terminal 60, max. scaling. Value:
1 - 99 sec. ✭ 10 sec.
No function [0] is selected if the drive is not Function:
to react to signals connected to the terminal. If the value of the of the reference or feedback signal
Reference [1]. If this function is selected, the reference connected to one of the input terminals 53 or 60 falls
can be changed by means of an analog reference below 50% of the minimum scaling for a period longer
signal. If reference signals are connected to more than than the time set, the function selected in parameter
one input, these reference signals must be added up. 318 Function after time out will be activated. This
If one current feedback signal is connected, select function is only active if in parameter 309 Terminal
Feedback [2] on terminal 60. 53, min. scaling a value higher than 1 Volt has been
selected, or if in parameter 315 Terminal 60, min.
scaling a value higher than 2 mA has been selected.
315 Terminal 60 Min. scaling Description of choice:
(AI 60 SCALE LOW) Set the required time.
Value:
0.0 - 20.0 mA ✭ 0.0 mA
Function: 318 Function after time out

In this parameter you can set the signal value that will (LIVE ZERO FUNCT.)
Programming
correspond to the minimum reference or minimum Value:
feedback, parameter 204 Minimum reference, RefMIN ✭No operation (NO OPERATION) [0]
/ 414 Minimum feedback, FBMIN. Freeze output frequency
(FREEZE OUTPUT FREQ.) [1]
Description of choice: Stop (STOP) [2]
Set the required current value. If the time out function is Jog (JOG) [3]
to be used (parameter 317 Time out and 318 Function Max. speed (MAX SPEED) [4]
after time out) the value set must be higher than 2 mA. Stop and trip (STOP AND TRIP) [5]
Function:
This parameter allows a choice of the function to be
316 Terminal 60 Max. scaling
activated after the expiration of the time out (parameter
(AI 60 SCALE HIGH) 317 Time out). If a time out function occurs at the
Value: same time as a bus time out function (parameter
0.0 - 20.0 mA ✭ 20.0 mA 513 Bus time interval function), the time out function
in parameter 318 will be activated.
Function:
This parameter is used for setting the signal value that Description of choice:
is to correspond to the maximum reference value, The output frequency of the drive can be:
parameter 205 Maximum reference value, RefMAX. - frozen at the present frequency [1]
- overruled to stop [2]
- overruled to jog frequency [3]
- overruled to max. output frequency [4]
VLT® 2800 Series
- overruled to stop with subsequent trip [5] Minimum reference, RefMIN - Maximum reference,
RefMAX (parameters 204/205).
FBMIN-FBMAX 0-20 mA/ 4-20 mA.

319 Analog output terminal 42 An output signal is obtained, which is proportional to the
(AO 42 FUNCTION) feedback value in the interval Minimum feedback, FBMIN
Value: - Maximum feedback, FBMAX (parameter 414/415).
No function (NO OPERATION) [0]
0-fMAX 0-20 mA/4-20 mA.
External reference min.-max. 0-20 mA
An output signal is obtained, which is proportional to
(REF MIN-MAX = 0-20 MA) [1]
the output frequency in the interval 0 - fMAX (parameter
External reference min.-max. 4-20 mA
202 Output frequency, high limit, fMAX).
(REF MIN-MAX = 4-20 MA) [2]
Feedback min.-max. 0-20 mA 0 - IMAX. 0-20 mA/4-20 mA.
(FB MIN-MAX = 0-20 MA) [3] An output signal is obtained, which is proportional
Feedback min.-max. 4-20 mA to the output current in the interval 0 - IMAX.
(FB MIN-MAX = 4-20 MA) [4]
Output frequency 0-max 0-20 mA 0 - PM,N 0-20 mA/4-20 mA.
(0-FMAX = 0-20 MA) [5] An output signal is obtained, which is proportional to
Output frequency 0-max 4-20 mA the present output power. 20 mA corresponds to the
(0-FMAX = 4-20 MA) [6] value set in parameter 102 Motor power, PM,N.
✭Output current 0-IMAX. 0-20 mA
0 - Temp.MAX 0-20 mA/4-20 mA.
(0-IMAX = 0-20 MA) [7]
An output signal is obtained, which is proportional
Output current 0-IMAX. 4-20 mA
to the present heatsink temperature. 0/4 mA
(0-IMAX = 4-20 MA) [8]
corresponds to a heatsink temperature of less than
Output power 0-PM,N 0-20 mA
20°C, and 20 mA corresponds to 100°C.
(0-PNOM = 0-20 MA) [9]
Output power 0-PM,N 4-20 mA
(0-PNOM = 4-20 MA) [10]
Inverter temperature 20-100°C 0-20 mA 323 Relay output 1-3
(TEMP 20-100 C=0-20 MA) [11] (RELAY 1-3 FUNCT.)
Inverter temperature 20-100°C 4-20 mA Value:
(TEMP 20-100 C=4-20 MA) [12] No function (NO OPERATION) [0]
✭Unit ready (UNIT READY) [1]
Function:
Enable/no warning (ENABLE/NO WARNING) [2]
The analog output can be used for stating a process
Running (RUNNING) [3]
value. It is possible to choose two types of output
Running in reference, no warning
signals 0 - 20 mA or 4 - 20 mA.
(RUN ON REF/NO WARN) [4]
If used as a voltage output (0 - 10 V), a pull-down
Running, no warnings
resistor of 500 must be fitted to common
(RUNNING/NO WARNING) [5]
(terminal 55). If the output is used as a current
Running in reference range, no warnings
output the resulting resistance from the equipment
(RUN IN RANGE/ NO WARN) [6]
connected may not exceed 500 .
Ready - AC line voltage within range
Description of choice: (RDY NO OVER/UNDERVOL) [7]
No function is selected if the analog output Alarm or warning
is not to be used. (ALARM OR WARNING) [8]
Current higher than current limit, par. 221
External RefMIN - RefMAX 0-20 mA/4-20 mA. (CURRENT LIMIT) [9]
An output signal is obtained, which is proportional Alarm (ALARM) [10]
to the resulting reference value in the interval Output frequency higher than fLOW par. 225

VLT® 2800 Series
(ABOVE FREQUENCY LOW) [11]

Running, no warning:
Output frequency lower than fHIGH par. 226
A start command has been given. No warning.
(BELOW FREQUENCY HIGH) [12]
Output current higher than ILOW par. 223 Running in reference range:
(ABOVE CURRENT LOW) [13] The drive is being controlled by a remote reference
Output current lower than IHIGH par. 224 and is running within range.
(BELOW CURRENT HIGH) [14]
Feedback higher than FBLOW par. 227 Ready - AC line voltage within range:
(ABOVE FEEDBACK LOW) [15] The adjustable frequency drive is ready for use; the
Feedback lower than FBHIGH par. 228 control card is receiving a supply voltage; and there
(UNDER FEEDBACK HIGH) [16] are no active control signals on the inputs. The AC
Relay 123 (RELAY 123) [17] line voltage lies within the voltage limits.
Reversing (REVERSE) [18] Alarm or warning:
Thermal warning (THERMAL WARNING) [19] An alarm or a warning exists in the drive.
Local operation (LOCAL MODE) [20]
Out of frequency range par. 225/226 Current limit:
(OUT OF FREQ RANGE) [22] The output current is higher than the value programmed
Out of current range in parameter 221 Current limit ILIM.
(OUT OF CURRENT RANGE) [23]
Alarm:
Out of feedback range
The output is activated by an alarm.
(OUT OF FDBK. RANGE) [24]
Mechanical brake control Output frequency higher than fLOW:
(MECH. BRAKE CONTROL) [25] The output frequency is higher than the value set in
Control word bit 11 parameter 225 Warning: Low frequency, fLOW.
(CONTROL WORD BIT 11) [26]
Output frequency higher than Flow:
Function: The output frequency is higher than the value set in
Programming
The relay output can be used for giving the present parameter 225 Warning: Low frequency, fLOW.
status or warning. The relay is a Form C with contacts
1 and 3 normally closed. The output is activated Output current higher than ILOW:
when a given condition is fulfilled. The output current is higher than the value set in
parameter 223 Warning: Low current, ILOW.
No function:
Is selected if the adjustable frequency drive
is not to react to signals.
Unit ready:
The drive’s control card receives a supply voltage
and the drive is ready for operation.
Enable, no warning:
The adjustable frequency drive is ready for operation,
but no start command has been given. No warning.
Running:
A start command has been given. Also active
during ramp down.
Running in reference, no warning:

The drive is running at reference speed. No warning.
VLT® 2800 Series
327 Pulse/reference feedback

(PULSE REF/FB MAX)
Output current lower than IHIGH:
The output current is lower than the value set in Value:
parameter 224 Warning: High current, IHIGH. 150 - 67600 Hz ✭ 5000 Hz
Feedback higher than FBLOW: Function:

The feedback value is higher than the value set in This parameter is used for setting the signal value
parameter 227 Warning: Low feedback, FBLOW. that corresponds to the maximum value set in
parameter 205 Maximum reference, RefMAX or to
Feedback lower than FBHIGH: the maximum feedback value set in parameter
The feedback value is lower than the value set in 415 Maximum feedback, FBMAX.
parameter 228 Warning: High current, IHIGH.
Relay 123: Set the required pulse reference or pulse feedback
Only used in connection with Profibus. to be connected to terminal 33.
Reversing:
The drive is running in reverse direction.
328 Maximum Pulse 29
Thermal warning:
(MAX PULSE 29)
Above the temperature limit in either the motor or
Value:
the adjustable frequency drive, or from a thermistor
connected to a digital input.
150 - 67600 Hz ✭ 5000 Hz
Local operation: Function:

The output is active when in parameter 002 This parameter is used for setting the signal value
Local/remote operation, Local operation [1] that corresponds to the maximum value set in
has been selected. parameter 205 Maximum reference, RefMAX or to
the maximum feedback value set in parameter
Out of the frequency range: 415 Maximum feedback, FBMAX.
The output frequency is out of the programmed
frequency range in parameters 225 and 226. NOTE
Only relevant for DeviceNet. See MG90BXYY
Out of the current range: for further information.
The motor current is out of the programmed
range in parameters 223 and 224.
341 Digital output terminal 46
Out of the feedback range:
(DO 46 FUNCTION)
The feedback signal is out of the programmed
range in parameters 227 and 228. Value:
Drive ready (UNIT READY) [1]
Out of the feedback range:
The feedback signal is out of the programmed See the selection made in parameter 323 Relay output.
range in parameters 227 and 228.
Function:
Mechanical brake control:
The digital output can be used for giving the present
Enables control of an external mechanical brake.
status or warning. The digital output (terminal 46) gives
Control word bit 11 a 24 V DC signal when a given condition is fulfilled.
Relay output 1-3 can be controlled by serial
communication protocols that access bit 11
See parameter 323 Relay output for descriptions.
in the control word.

VLT® 2800 Series
pulses programmed by the user have been received at

NOTE
input terminal 33. In this way an internal stop signal will
Output terminal 46 is not available on DeviceNet.
activate the normal ramp down time (parameter 208).
The counter function is activated (starts timing)
at the flank of the start signal (when it changes
from stop to start).
342 Terminal 46, max. pulse scaling
Speed compensated stop. To stop at precisely
(DO 46 MAX. PULS) the same point, regardless of the present speed,
Value: a stop signal received is delayed internally when
150 - 10000 Hz ✭ 5000 Hz the present speed is lower than the maximum
speed (set in parameter 202).
Function: Reset. Counter stop and Speed-compensated stop
This parameter is used for setting the pulse output can be combined with or without reset.
signal’s maximum frequency. Counter stop with reset [1]. After each precise
Description of choice: stop the number of pulses counted during
ramp down to 0 Hz is reset.
Counter stop without reset [2]. The number of pulses
counted during ramp down to 0 Hz is deducted
from the counter value in parameter 344.
343 Precise stop function
(PRECISE STOP)
Value: 344 Counter value
✭Precise ramp stop (NORMAL) [0] (PULSE COUNT PRE.)
Counter stop with reset Value:
(COUNT STOP W. RESET) [1] 0 - 999999 ✭ 100000 pulses
Counter stop without reset
Programming
(COUNT STOP NO RESET) [2] Function:
Speed-compensated stop (SPEED CMP STOP) [3] In this parameter you can select the counter
Speed-compensated counter stop with reset value to be used in the integrated precise stop
(SPD CMP CSTOP W. RES) [4] function (parameter 343).
Speed-compensated counter stop without reset
(SPD CMP CSTOP NO RES) [5] Description of choice:
The factory setting is 100000 pulses. The highest
Function: frequency (max. resolution) that can be registered
In this parameter you select which stop function is at terminal 33 is 67.6 kHz.
performed in response to a stop command. All six
data selections contain a precise stop routine, thus
ensuring a high level of repeat accuracy.
349 Speed comp delay
The selections are a combination of the
functions described below. (SPEED COMP DELAY)
Value:
NOTE 0 ms - 100 ms ✭ 10 ms
Pulse start [8] (see Inputs and Outputs) may not
be used together with the precise stop function. Function:
In this parameter the user can set the system’s
Description of choice: delay time (Sensor, PLC, etc.). If you are running
Precise ramp stop [0] is selected to achieve high speed-compensated stop, the delay time at
repetitive precision at the stopping point. different frequencies has a major influence on
Counter stop. Once it has received a pulse start signal the way in which you stop.
the adjustable frequency drive runs until the number of
VLT® 2800 Series
The factory setting is 10 ms. This means that it is
assumed that the total delay from the Sensor, PLC
and other hardware corresponds to this setting.
NOTE
Only active for speed-compensated stop.

VLT® 2800 Series
■ Special functions Function:

This parameter makes it possible to select whether
400 Brake function reset and restart after a trip are to be manual or whether
(BRAKE FUNCTION) the unit is to be reset and restarted automatically.
Value: Furthermore, it is possible to select the number of times
Off (OFF) [0] a restart is to be attempted. The time between each
Resistor brake (RESISTOR) [1] attempt is set in parameter 406 Automatic restart time.
AC brake (AC BRAKE) [4] Description of choice:
Load sharing (LOAD SHARING) [5]
If Manual reset [0] is selected, reset is to be
carried out via the [STOP/RESET] key, a digital
Factory setting depends on unit type. input or serial communication. If the unit is to
carry out an automatic reset and restart after a
Function:
trip, select data value [1], [3] or [10].
Resistor brake [1] is selected if the adjustable
If Reset at power-up [11] is selected, the unit
frequency drive has an integral brake transistor
will carry out a reset if there has been a fault
and the brake resistor is connected to terminals
in connection with an AC line.
81, 82. A higher intermediate circuit voltage is
permitted during braking (generated operation) The motor may start without warning.
when a brake resistor is connected.
AC brake [4] can be selected to improve braking
without using brake resistors. Please note that AC
brake [4] is not as effective as Resistor brake [1].
406 Automatic restart time
(AUTORESTART TIME)
Select Resistor brake [1] if a brake resistor is connected.
Select AC brake [4] if short-term generated loads occur. Value:
See parameter 144 Gain AC brake to set the brake. 0 - 10 sec. ✭ 5 sec.
Programming
Select Load sharing [5] if this is used. Function:
This parameter allows setting of the time from
NOTE tripping until the automatic reset function begins. It
A change of selection will not become is assumed that automatic reset has been selected
active until the AC line voltage has been in parameter 405 Reset function.
disconnected and reconnected.
Set the required time.
405 Reset function
(RESET MODE)
Value:
409 Trip delay overcurrent, ILIM
✭Manual reset (MANUAL RESET) [0]
(TRIP DELAY CUR.)
Automatic reset x 1
(AUTOMATIC X 1) [1] Value:
Automatic reset x 3 0 - 60 sec. (61=OFF) ✭ OFF
(AUTOMATIC X 3) [3]
Function:
Automatic reset x 10
When the adjustable frequency drive registers that
(AUTOMATIC X 10) [10]
the output current has reached the current limit
Reset at power-up
ILIM (parameter 221 Current limit) and remains
(RESET AT POWER UP) [11]
there for the preset time, it is disconnected. Can
be used to protect the application, like the ETR
will protect the motor if selected.
VLT® 2800 Series

Select how long the adjustable frequency drive Select LC-filter connected [3] when an LC-filter
should maintain the output current at the current is connected between the adjustable frequency
limit ILIM before it disconnects. At OFF parameter drive and the motor.
409 Trip delay overcurrent, ILIM is not working, i.e.
disconnection will not take place. NOTE
When the LC filter is selected, the switching
frequency is changed to 4.5 kHz.
411 Switching frequency

(SWITCH FREQ.) 413 Overmodulation function
Value: (OVERMODULATION)
3000 - 14000 Hz (VLT 2803-75) ✭ 4500 Hz Value:
3000 - 10000 Hz (VLT 2880-82) ✭ 4500 Hz Off (OFF) [0]
✭On (ON) [1]
Function:
The set value determines the switching frequency of the Function:
inverter. If the switching frequency is changed, this may This parameter allows connection of the
help to minimize possible acoustic noise from the motor. overmodulation function for the output voltage.
NOTE Description of choice:

The output frequency of the adjustable Off [0] means that there is no overmodulation
frequency drive can never assume a value of the output voltage, which means that
higher than 1/10 of the switching frequency. torque ripple on the motor shaft is avoided.
On [1] means that an output voltage can be obtained
which is greater than the AC line voltage (up to 5%).
When the motor is running, the switching frequency
is adjusted in parameter 411 Switching frequency
until the frequency has been obtained at which the
motor is as low-noise as possible. 414 Minimum feedback , FBMIN
(MIN. FEEDBACK)
NOTE
Value:
The switching frequency is reduced
-100,000.000 - par. 415 FBMAX ✭ 0.000
automatically as a function of the load.
See Temperature-Dependent Switching Function:
Frequency under Special Conditions. Parameter 414 Minimum feedback, FBMIN and 415
When LC-filter connected is selected in parameter Maximum feedback, FBMAX are used to scale the
412, the switching frequency is 4.5 kHz. display text to make it show the feedback signal in a
process unit proportionally to the signal on the input.
412 Variable switching frequency Description of choice:

(VAR CARRIER FREQ.) Set the value to be shown on the display as the
Value: minimum feedback signal value on the selected
✭Without LC-filter (WITHOUT LC-FILTER) [2] feedback input (parameters 308/314 Analog inputs).
LC-filter connected
(LC-FILTER CONNECTED) [3]
Function:
The parameter must be set to LC-filter connected
if an LC-filter is connected between the adjustable
frequency drive and the motor.

VLT® 2800 Series
415 Maximum feedback, FBMAX Gal/min. (GAL/MIN) [31]

(MAX. FEEDBACK) Ft3/min. (FT3/MIN) [32]
Value: Gal/h (GAL/H) [33]
FBMIN - 100,000.000 ✭ 1500.000 Ft3/h (FT3/H) [34]
Lb/s (LB/S) [35]
Function: Lb/min. (LB/MIN) [36]
See description of parameter 414 Minimum Lb/hour (LB/H) [37]
feedback, FBMIN. Lb ft (LB FT) [38]
Ft/s (FT/S) [39]
Ft/min. (FT/MIN) [40]
Set the value to be shown on the display when the
maximum feedback has been obtained on the selected Function:
feedback input (parameter 308/314 Analog inputs). Select among different units to be shown on the display.
The unit is read out if the optional LCP control unit is
connected, and if Reference [unit] [2] or Feedback [unit]
[3] has been selected in one of parameters 009-012
416 Process units
Display read-out, and in Display mode. The unit is used
(REF/FEEDB. UNIT)
in Closed loop also as a unit for Minimum/Maximum
Value:
reference and Minimum/Maximum feedback.
✭No unit ( NO UNIT) [0]
% (%) [1] Description of choice:
ppm (PPM) [2] Select the required unit for the reference/feed-
rpm (RPM) [3] back signal.
bar (BAR) [4]
Cycles/min (CYCLE/MI) [5]
Pulses/s (PULSE/S) [6]
NOTE
Units/s (UNITS/S) [7]
Parameters 417-421 are only used, if in
Programming
Units/min. (UNITS/MI) [8]
parameter 100 Configuration the selection
Units/h (UNITS/H) [9]
made is Speed regulation, closed loop [1].
°C (°C) [10]
Pa (PA) [11] 417 Speed PID proportional gain
l/s (L/S) [12] (SPEED PROP GAIN)
m3/s (M3/S) [13]
Value:
l/min. (L/M) [14]
0.000 (OFF) - 1.000 ✭ 0.010
m3/min. (M3/MIN) [15]
l/h (L/H) [16] Function:
m3/h (M3/H) [17] Proportional gain indicates how many times the
Kg/s (KG/S) [18] error (deviation between the feedback signal and
Kg/min. (KG/MIN) [19] the setpoint) is to be amplified.
Kg/hour (KG/H) [20]
Tons/min. (T/MIN) [21] Description of choice:
Tons/hour (T/H) [22] Quick regulation is obtained at high amplification,
Meters (M) [23] but if the amplification is too high, the process may
Nm (NM) [24] become unstable in the case of overshooting.
m/s (M/S) [25]
m/min. (M/MIN) [26]
°F (°F) [27]
In wg (IN WG) [28]
gal/s (GAL/S) [29]
Ft3/s (FT3/S) [30]
VLT® 2800 Series
418 Speed PID integral time frequencies, limiting the gain may be useful. This
(SPEED INT. TIME) enables obtaining a pure D-gain at low frequencies
Value: and a constant D-gain at higher frequencies.
20.00 - 999.99 ms (1000 = OFF) ✭ 100 ms Description of choice:
Function: Select the required gain limit.

The integral time determines how long the PID
regulator takes to correct the error. The greater
the error, the quicker the integrator frequency 421 Speed PID lowpass filter time
contribution will increase. The integral time is the (SPEED FILT. TIME)
time the integrator needs to achieve the same
Value:
change as the proportional amplification.
20 - 500 ms ✭ 100 ms
Function:
Quick regulation is obtained through a short integral
Noise in the feedback signal is dampened by a first
time. However, if this time is too short, it can make
order lowpass filter to reduce noise impact impact on
the process unstable. If the integral time is long,
the regulation. This might be an advantage, e.g. if there
major deviations from the required reference may
is a great amount of noise on the signal. See drawing.
occur, since the process regulator will take long
to regulate if an error has occurred.
419 Speed PID differential time

(SPEED DIFF. TIME)
Value:
0.00 (OFF) - 200.00 ms ✭ 20.00 ms
Function:
The differentiator does not react to a constant error.
It only makes a contribution when the error changes.
The quicker the error changes, the stronger the gain
from the differentiator will be. The contribution is
proportional to the speed at which errors change.
Quick control is obtained by a long differential time.
However, if this time is too long, it can make the
process unstable. When the differential time is
0 ms, the D-function is not active.
If a time constant (t) of 100 ms is programmed, the
cut-off frequency for the lowpass filter will be 1/0.1 =
10 RAD/sec., corresponding to (10 / 2 x π) = 1.6 Hz.
420 Speed PID D- gain limit
The PID regulator will then only regulate a feedback
(SPEED D-GAIN LIM) signal that varies with a frequency of less than 1.6 Hz.
Value: If the feedback signal varies by a higher frequency than
5.0 - 50.0 ✭ 5.0 1.6 Hz, it will be dampened by the lowpass filter.
Function:
It is possible to set a limit for the gain provided by the
differentiator. Since the D-gain increases at higher

VLT® 2800 Series
423 V1 voltage Description of choice:

(U1 VOLTAGE) Set the output voltage (V2) that is to match the second
Value: output frequency (F2), parameter 426 F2 frequency.
0.0 - 999.0 V ✭ par. 103
Function:
426 F2 frequency
Parameters 423-428 are used when, in parameter
(F2 FREQUENCY)
101 Torque characteristic, a selection has been made
of Special motor characteristic [8]. It is possible to Value:
determine a V/f characteristic on the basis of four Par. 424 F1 frequency - par. 428 F3 frequency
definable voltages and three frequencies. The voltage ✭ Par. 104 Motor frequency
at 0 Hz is set in parameter 133 Start voltage.
Function:
See parameter 423 V1 voltage.
Set the output frequency (F2) that is to match the
second output voltage (V2), parameter 425 V2 voltage.
427 V3 voltage
(U3 VOLTAGE)
Description of choice: Value:
Set the output voltage (V1) that is to match the first 0.0 - 999.0 V ✭ par. 103
output frequency (F1), parameter 424 F1 frequency.
Function:
Programming
424 F1 frequency Description of choice:
(F1 FREQUENCY) Set the output voltage (V3) that is to match the third
Value: output frequency (F3), parameter 428 F3 frequency.
0.0 - par. 426 F2 frequency
✭ Par. 104 Motor frequency
428 F3 frequency
Function:
(F3 FREQUENCY)
See parameter 423 U1 voltage.
Value:
Description of choice: Par. 426 F2 frequency - 1000 Hz
Set the output frequency (F1) that is to match the first ✭ Par. 104 Motor frequency
output voltage (V1), parameter 423 V1 voltage.
Function:
425 V2 voltage Description of choice:

(U2 VOLTAGE) Set the output frequency (F3) that is to match the third
Value: output voltage (V3), parameter 427 V3 voltage.
0.0 - 999.0 V ✭ par. 103
Function:
VLT® 2800 Series
NOTE
NOTE
Parameters 437-444 are only used
If Disable [0] is selected, it will mean that when
if in parameter 100 Configuration a
the deviation changes its sign, the integrator
selection has been made of Process
will first have to integrate down from the level
regulation, closed loop. [3].
obtained as a result of the former error, before any
437 Process PID normal/inverse control change in output frequency occurs.
(PROC NO/INV CTRL)
Value: 439 Process PID start frequency
✭Normal (NORMAL) [0]
(PROC START VALUE)
Inverse (INVERSE) [1]
Value:
Function: fMIN - fMAX (parameter 201/202)
It is possible to choose whether the process regulator ✭ Par. 201 Output frequency, low limit, fMIN
is to increase/reduce the output frequency if there
is a deviation between the reference/setpoint Function:
and the actual process mode. Upon a start signal, the drive will react in the form
of Open loop and will not change to Closed loop
Description of choice: until the programmed start frequency is reached.
If the unit is to reduce the output frequency in case This makes it possible to set a frequency that
the feedback signal increases, select Normal [0]. corresponds to the speed at which the process
If the unit is to increase the output frequency in case normally runs, which will enable the required process
the feedback signal increases, select Inverse [1]. conditions to be reached sooner.
Set the required start frequency.
438 Process PID anti-windup
(PROC ANTI WINDUP) NOTE
If the unit is running at current limit before
Value:
the required start frequency is obtained, the
Not active (DISABLE) [0]
process regulator will not be activated. For the
regulator to be activated anyway, the start frequency
Function: must be lower to the required output frequency.
It is possible to select whether the process regulator is This can be done during operation.
to continue regulating on a deviation even if it is not
possible to increase/reduce the output frequency.
440 Process PID proportional gain
Description of choice: (PROC. PROP. GAIN)
The factory setting is Enable [1], which means that Value:
the integration link is initialized in relation to the actual 0.0 - 10.00 ✭ 0.01
output frequency if the current limit, the voltage
limit, or the max./min. frequency has been reached. Function:
The process regulator will not engage again until The proportional gain indicates the number of
either the error is zero or its sign has changed. times the deviation between the setpoint and the
Select Disable [0] if the integrator is to continue feedback signal is to be applied.
integrating on the deviation, even if it is not possible
to remove the error by such control.
Quick regulation is obtained by a high gain, but,
if the gain is too high, the process may become

VLT® 2800 Series
unstable. See Optimization of the Process Regulator 443 Process PID diff. gain limit
for information on proper adjustment. (PROC. DIFF.GAIN)
Value:
5.0 - 50.0 ✭ 5.0
441 Process PID integral time
Function:
(PROC. INTEGR. T.)
It is possible to set a limit for the differentiator gain.
Value:
The differentiator gain will increase if there are fast
0.01 - 9999.99 (OFF) ✭ OFF changes, which is why it can be beneficial to limit this
gain. Thereby a pure differentiator gain is obtained
Function:
at slow changes and a constant differentiator gain
The integrator provides an increasing gain at a constant
where quick changes to the deviation occur.
error between the reference/setpoint and the feedback
signal. The greater the error, the quicker the integrator Description of choice:
frequency contribution will increase. The integral
A lower limit will improve stability, but will reduce
time is the time needed by the integrator to make
the effect of the differential.
the same change as the proportional gain.
Optimization of the Process Regulator:
To optimize the system, set the proportional gain,
Fast regulation is obtained by setting a short the integration time and, if needed, the differentiation
integration time. However, if this time is too short, time. These are set by parameters 440, 441 and
the process will overcorrect and become unstable. 442. In most processes, this can be done in
See Optimization of the Process Regulator for accordance with the following guidelines:
information on proper adjustment.
1. Start the motor.
2. Set parameter 440, Process PID proportional gain,
to 0.3 and increase it until the feedback signal
442 Process PID differentiation time
Programming
becomes unstable. Then reduce the value until
(PROC. DIFF. TIME)
the feedback signal has stabilized. Now lower the
Value: proportional gain by about half (40% to 60%).
0.00 (OFF) - 10.00 sec. ✭ 0.00 sec. 3. Set parameter 441, Process PID integration time, to
20 seconds and reduce the value until the feedback
Function:
signal becomes unstable. Increase the integration
The differentiator does not react to a constant error.
time until the feedback signal stabilizes. Now
It only makes a gain when an error changes. The
increase the integration time from 15% to 50%.
quicker the deviation changes, the stronger the gain
4. Parameter 442, Process PID differentiation time, is
from the differentiator. The gain is proportional to
only used in very fast-acting systems and should
the speed at which the deviation changes.
be left off for most HVAC applications. When
Description of choice: it is used, the typical value is 1/4th the value
Fast regulation can be obtained by means of a long set in parameter 441, Process PID integral time.
differentiation time. If this time is too long, the process The differentiator should only be used when the
may overshoot. The differentiator is generally set of OFF setting of the proportional gain and the integration
in HVAC applications. See Optimization of the Process time have been fully optimized.
Regulator for information on proper adjustment.
Starting and stopping the drive will produce the
necessary error signal in the process to set the PID.
VLT® 2800 Series
444 Process PID lowpass filter time selected if in parameter 200 Output frequency range
(PROC FILTER TIME) a selection has been of Clockwise only.
Value: Select OK - both directions [2] if the motor is able
0.02 - 10.00 ✭ 0.02 to rotate in both directions when cutting in.
Function: Select DC brake and start if the drive is to brake

Noise in the feedback signal is dampened by a first the motor by means of the DC brake first, and
order lowpass filter to reduce noise impact on the then start. Ensure that parameters 126, 127, and
process regulation. This can be an advantage e.g. 132 are set appropriately. Select DC brake and
if there is a lot of noise on the signal. start if the motor may be externally driven at a
significant speed in the reverse direction.
Select the required time constant (t). If a time constant Limitations:
(t) of 0.1s is programmed, the cut-off frequency - Too low inertia will lead to load acceleration, which
for the lowpass filter will be 1/0.1 = 10 RAD/sec., can be dangerous or prevent correct catching of
corresponding to (10 / 2 x π) = 1.6 Hz. The process a rotating motor. Use the DC brake instead.
regulator will thus only regulate a feedback signal - A driven rotating motor, or windmilling motor
that varies by a frequency lower than 1.6 Hz. If the with high inertia, may cause a drive trip with
feedback signal varies by a higher frequency than 1.6 flying start. Use DC brake and start.
Hz, it will be dampened by the lowpass filter. - Flying start does not work at values lower
than 250 rpm.
445 Flying start

(FLYINGSTART ) 451 Speed PID feedforward factor
Value: (FEEDFORWARD FACT)
✭Off (DISABLE) [0] Value:
OK - same direction 0 - 500% ✭ 100%
(OK-SAME DIRECTION) [1]
OK - both directions Function:
(OK-BOTH DIRECTIONS) [2] This parameter is only active if in parameter 100
DC brake and start Configuration the selection made is Speed regulation,
(DC-BRAKE BEF. START) [3] closed loop. The FF function sends a larger or smaller
part of the reference signal outside the PID controller
Function: in such a way that the PID controller only has an
This function makes it possible to ’catch’ a rotating influence on part of the control signal. Any change
motor shaft, which is no longer controlled by the unit, to the set point will thus have a direct effect on the
e.g. because of a AC line drop-out. The function is motor speed. The FF factor provides high dynamism
activated each time a start command is enabled. For when changing the set point and less overswing.
the unit to be able to ’catch’ the rotating motor shaft,
the motor speed must be lower than the frequency Description of choice:
that corresponds to the frequency in parameter The required % value can be selected in the
202 Output frequency, high limit, fMAX. interval between minimum and maximum frequency.
Values over 100% are used if the set point
Description of choice: variations are only small.
Select Disable [0] if this function is not required.
Select OK - same direction [1] if the motor shaft

is only able to rotate in the same direction when
cutting in. OK - same direction [1] should be

VLT® 2800 Series
452 Controller range

(PID CONTR. RANGE)
Value:
0 - 200 % ✭ 10 %
Function:
This parameter is only active if in parameter
100 Configuration the selection made is Speed
regulation, closed loop.
The controller range (bandwidth) limits the output from
the PID controller as a % of nominal motor frequency.
The required % value can be selected for nominal
motor frequency. If the controller range is reduced the
speed variations will be less during initial tuning.
456 Brake Voltage Reduce

(BRAKE VOL.REDUCE)
Value:
0 - 25 V if 200V device ✭ 0
0 - 50 V if 400V device ✭ 0
Function:
The user sets the voltage by which the level for
Programming
resistor braking is reduced. It is only active when
resistor in parameter 400 is selected.
The greater the reduction value, the faster the reaction
to a generator overload. Should only be used if there are
problems with overvoltage in the intermediate circuit.
VLT® 2800 Series
■ Serial communication 502 Coasting Stop

(COASTING SELECT)
500 Address Value:
(BUS ADDRESS) Digital input (DIGITAL INPUT) [0]
Value: Serial port (SERIAL PORT) [1]
0 - 126 ✭ 1 Logic and (LOGIC AND) [2]
✭Logic or (LOGIC OR) [3]
Function:
This parameter allows the allocation of an address Function:
to each adjustable frequency drive in a serial Parameters 502-508 allow a choice between
communication network. controlling the frequency converter via the digital
inputs and/or via the serial port.
If Serial port [1] is selected, the relevant
The individual adjustable frequency drive must command can only be activated if a command
be allocated a unique address. is given via the serial port.
If the number of units connected (adjustable In the case of Logic and [2] the function must
frequency drives + master) is higher than 31, also be activated via a digital input.
a repeater must be used.
Parameter 500 Address cannot be selected via the serial Description of choice:
communication, but must be preset via the control unit. The table below shows when the motor is running
and when it is coasting, when each of the
following is selected: Digital input [0], Serial port
501 Baudrate [1], Logic and [2] or Logic or [3].
(BAUDRATE) NOTE
Value: Note that Coasting stop and Bit 03 in the
300 Baud (300 BAUD) [0] control word are active at logic ’0’.
600 Baud (600 BAUD) [1]
1200 Baud (1200 BAUD) [2] Digital input [0]
2400 Baud (2400 BAUD) [3] Dig. input Ser. port Function
4800 Baud (4800 BAUD) [4] 0 0 Coasting
✭9600 Baud (9600 BAUD) [5] 0 1 Coasting
1 0 Motor running
Function: 1 1 Motor running
This parameter is for programming the speed at which
data is transmitted via the serial port. Baud rate is Serial port [1]
defined as the number of bits transmitted per second. Dig. input Ser. port Function
0 0 Coasting
Description of choice: 0 1 Motor running
The frequency converter’s transmission speed 1 0 Coasting
must be set at a value corresponding to the 1 1 Motor running
transmission speed of the master.
Parameter 501 Baudrate cannot be selected via the Logic and [2]
serial port, but must be preset via the operating unit. Dig. input Ser. port Function
0 0 Coasting
0 1 Motor running
1 0 Motor running
1 1 Motor running

VLT® 2800 Series
Logic or [3] Logic or [3]

Dig. input Ser. port Function Dig. input Serial port Function
0 0 Coasting 0 0 Quick-stop
1 1 Motor running 1 1 Motor running
503 Quick-stop 504 DC brake

(Q STOP SELECT) (DC BRAKE SELECT)
Value: Value:
Digital input (DIGITAL INPUT) [0] Digital input (DIGITAL INPUT) [0]
Serial port (SERIAL PORT) [1] Serial port (SERIAL PORT) [1]
Logic and (LOGIC AND) [2] Logic and (LOGIC AND) [2]
✭Logic or (LOGIC OR) [3] ✭Logic or (LOGIC OR) [3]
Function: Function:
See function description for parameter 502 See function description for parameter 502
Coasting stop. Coasting stop.

The table below shows when the motor is running The table below shows when the motor is
and when it is in Quick-stop mode, when each of running and the DC braking when each of the
the following is selected: Digital input [0], Serial following is selected Digital input [0], Serial port
port [1], Logic and [2] or Logic or [3]. [1], Logic and [2] or Logic or [3].
NOTE
Programming
NOTE
Note that Quick-stop inverse and Bit 04 in the Note that DC braking inverse and Bit 02 in the
control word are active at logic ’0’. control word are activt at logic ’0’.
Digital input [0] Digital input [0]

Dig. input Serial port Function Dig. input Ser. port Function
0 0 Quick-stop 0 0 DC braking
Serial port [1] Serial port [1]

Logic and [2] Logic and [2]

VLT® 2800 Series
Logic or [3] Logic or [3]

Dig. input Ser. port Function Dig. input Ser. port Function
0 0 DC braking 0 0 Stop
0 1 DC braking 0 1 Start
1 0 DC braking 1 0 Start
1 1 Motor running 1 1 Start
505 Start 506 Reversing

(START SELECT) (REVERSING SELECT)
Value: Value:
Digital input (DIGITAL INPUT) [0] Digital input (DIGITAL INPUT) [0]
Serial port (SERIAL PORT) [1] Serial port (SERIAL PORT) [1]
Logic and (LOGIC AND) [2] Logic and (LOGIC AND) [2]
✭Logic or (LOGIC OR) [3] ✭Logic or (LOGIC OR) [3]
Function: Function:
See function description for parameter 502 See function description for parameter 502
Coasting stop. Coasting stop.

The table below shows when the motor has stopped The table below shows when the motor is running
and when the frequency converter has a start command clockwise and counter clockwise when each of
when each of the following is selected: Digital input the following is selected: Digital input [0], Serial
[0], Serial port [1], Logic and [2] or Logic or [3]. port [1], Logic and [2] or Logic or [3].
Digital input [0] Digital input [0]
0 0 Stop 0 0 Clockwise
1 0 Start 1 0 Counter clockwise
Serial port [1] Serial port [1]

Logic and [2] Logic and [2]


VLT® 2800 Series
Logic or [3] Logic and [2]

Dig. input Ser. port Function Bus Setup Bus Dig. Dig. Setup no.
0 0 Clockwise msb Setup Setup Setup
0 1 Counter clockwise lsb msb lsb
1 0 Counter clockwise 0 0 0 0 1
0 0 0 1 1
1 1 Counter clockwise 0 0 1 0 1
0 0 1 1 1
0 1 0 0 1
0 1 0 1 2
0 1 1 0 1
507 Selection of Setup 0 1 1 1 2
(SETUP SELECT) 1 0 0 0 1
1 0 0 1 1
Value: 1 0 1 0 3
Digital input (DIGITAL INPUT) [0] 1 0 1 1 3
Serial communication (SERIAL PORT) [1] 1 1 0 0 1
1 1 0 1 2
Logic and (LOGIC AND) [2]
1 1 1 0 3
✭Logic or (LOGIC OR) [3] 1 1 1 1 4
Function:
Logic or [3]
See function description of parameter 502 Bus Bus Setup Dig. Setup Dig. Setup no.
Coasting stop. Setup lsb msb Setup
msb lsb
Description of choice: 0 0 0 0 1
The table below shows which Setup (parameter 0 0 0 1 2
004 Active Setup) is selected for each of the 0 0 1 0 3
0 0 1 1 4
following: Digital input [0], Serial communication 0 1 0 0 2
[1], Logic and [2] or Logic or [3]. 0 1 0 1 2
0 1 1 0 4
Digital input [0]
Programming
0 1 1 1 4
Setup msb Setup lsb Function
1 0 0 0 3
0 0 Setup 1
1 0 0 1 4
0 1 Setup 2
1 0 1 0 3
1 0 Setup 3
1 0 1 1 4
1 1 Setup 4
1 1 0 0 4
1 1 0 1 4
Serial communication [1] 1 1 1 0 4
Setup msb Setup lsb Function 1 1 1 1 4
0 0 Setup 1
0 1 Setup 2
1 0 Setup 3
1 1 Setup 4
508 Selection of preset ref.
(PRES.REF. SELECT)
Value:
Digital input (DIGITAL INPUT) [0]
Serial comunication (SERIAL PORT) [1]
Logic and (LOGIC AND) [2]
✭Logic or (LOGIC OR) [3]
Function:
See function description of parameter 502
Coasting stop.
VLT® 2800 Series
Description of choice: serial communication is assumed to have stopped

Preset references via serial communication are and the desired reaction is preset in parameter
active when parameter 512 Telegram profile 514 Bus time interval function.
is set to FC protocol [1].
Preset the required time.
509 Bus jog 1 (BUS JOG 1 FREQ.)

510 Bus jog 2 (BUS JOG 2 FREQ.)
514 Bus time interval function
Value: (BUS TIMEOUT FUNC)
0.0 - par. 202 Output frequency high limit
Value:
✭ 10,0 Hz
✭Off (OFF) [0]
Function: Freeze output frequency (FREEZE OUTPUT) [1]
If parameter 512 Telegram Profile shows the selection Stop (STOP) [2]
Profidrive [0], two fixed speeds (Jog 1 or Jog 2) Jogging (JOGGING) [3]
can be selected via the serial port. Max. speed (MAX SPEED) [4]
The function is the same as in parameter Stop and trip (STOP AND TRIP) [5]
213 Jog frequency.
Function:
Description of choice: In this parameter you can select the required reaction
Jog frequency can be selected between 0 Hz for the adjustable frequency drive when the preset
and maximum frequency. time in parameter 513 Bus time interval has been
exceeded. If choices [1] to [5] are activated the
output relay will be deactivated.
512 Telegram Profile Description of choice:

(TELEGRAM PROFILE) The output frequency of the adjustable frequency
Value: drive can be frozen at the present value, stop the
Profidrive (PROFIDRIVE) [0] motor, be frozen at parameter 213 Jogging frequency,
✭FC protocol (FC PROTOCOL) [1] be frozen at parameter 202 Output frequency, high
limit fMAX or stop and activate a cut out.
Function:
It is possible to choose between two different
control word profiles.
Select the desired control word profile.
See Serial port for VLT 2800 for further details
of control word profiles.
513 Bus time interval

(BUS TIMEOUT TIME)
Value:
1 - 99 sec. ✭ 1 sec.
Function:
In this parameter it is possible to preset the maximum
time expected to elapse between receipt of two
consecutive telegrams. If this time is exceeded, the

VLT® 2800 Series
5 1 5-5 44 D a t a re a d o u t
Val ue:
Par. Description Display text Unit Update
no. interval
515 Res. reference (REFERENCE %) %
516 Res. reference [Unit] (REFERENCE [UNIT]) Hz, rpm
517 Feedback [Unit] (FEEDBACK [UNIT]) Par. 416
518 Frequency (FREQUENCY) Hz
519 Frequency x scale (FREQUENCY X SCALE) Hz
520 Motor current (MOTOR CURRENT) Amp
521 Torque (TORQUE) %
522 Power[kW] (POWER (KW)) kW
523 Power[HP] (POWER (HP)) HP
524 Motor voltage (MOTOR VOLTAGE) V
525 DC-link voltage (DC LINK VOLTAGE) V
526 Thermal load motor (MOTOR THERMAL) %
527 Thermal load inverter (INV. THERMAL) %
528 Digital input (DIGITAL INPUT) Bin
529 Term.53, analog input (ANALOG INPUT 53) V
531 Term.60, analog input (ANALOG INPUT 60) mA
532 Pulse reference (PULSE REFERENCE) Hz
533 External ref. (EXT. REF.%) %
534 Status word, Hex (STATUS WORD) Hex
535 Bus feedback 1 (BUS FEEDBACK1) Hex
537 Inverter temperature (INVERTER TEMP.) °C
538 Alarm word (ALARM WORD) Hex
539 Control word (CONTROL WORD) Hex
540 Warning word (WARN. WORD) Hex
Programming
541 Extended status word (STATUS WORD) Hex
544 Pulse count (PULSE COUNT)
Function:
These parameters can be read out via the serial
Parameter 517, Feedback [unit]:
communication port and the LCP display. See also
Gives the resulting feedback value with the unit/scaling
parameters 009-012 Display readout.
that is selected in parameters 414, 415 and 416.
NOTE See also handling of feedback.
Parameters 515-541 can only be read out
Parameter 518, Frequency [Hz]:
via an LCP control unit.
Gives the output frequency from the adjustable
frequency drive.
Parameter 515, Resulting reference %: Parameter 519, Frequency x scaling [-]:
Gives the resulting reference as a percentage in the Corresponds to the present output frequency fM
range from Minimum reference, RefMIN to Maximum multiplied by the factor preset in parameter 008
reference, RefMAX. See also Handling of References. Display scaling of output frequency.
Parameter 516, Resulting reference [unit]: Parameter 520, Motor current [A]:
Gives the resulting reference in Hz in closed loop Gives the motor’s phase current measured
(parameter 100). In closed loop the reference unit as an effective value.
in parameter 416 Process units is selected.
VLT® 2800 Series
Parameter 521, Torque [Nm]:

Gives the motor’s present load in relation to Parameter 534, Status word:
the motor’s rated torque. Gives the present status word for the adjustable
frequency drive in Hex. See Serial communication
Parameter 522, Power [kW]: for the VLT 2800.
Gives the motor’s present power in kW which
the motor absorbs. Parameter 535, Bus feedback:
Allows wrinting of a bus feedback value which will
Parameter 523, Power [HP]: then form part of the feedback handling.
Gives the motor’s present voltage in HP which
the motor absorbs.
Parameter 524, Motor voltage:

Gives the voltage supplied to the motor.
Parameter 525, DC link voltage:

Gives the intermediate circuit voltage in the
adjustable frequency drive.
Parameter 526, Thermal load, motor [%]:

motor. 100% is the trip point. See also parameter
128 Thermal motor protection.
Parameter 527, Thermal load INV [%]:

adjustable frequency drive. 100% is the cut-out limit.
Parameter 528, Digital input:

Gives the signal status from the 5 digital inputs (18, 19,
27, 29 and 33). Input 18 corresponds to the bit on the
extreme left. ’0’ = no signal, ’1’ = connected signal.
Parameter 529, Terminal 53 analog input [V]:

Gives the voltage value for the signal on terminal 53.
Parameter 531, Terminal 60 analog input [mA]:

Gives the current value for the signal on terminal 60.
Parameter 532, Pulse reference [Hz]:

Gives a pulse frequency in Hz connected to terminal 33.
Parameter 533, External reference:

Gives the sum of external references as a percentage
(sum of analog/pulse/serial communication) in
the range from Minimum reference, RefMIN to

VLT® 2800 Series
3. Release Internal Floating Points from point

address (NPA) 0 to 255.
Parameter 537, Inverter temperature:
4. Release Internal Integer Points from point
Gives the heatsink temperature on the adjustable
frequency drive. The trip limit is 194°F - 212°F (90°C
5. Release Internal Byte points from point
- 100°C), with reset at 158°F ± 9°F (70 ± 5 °C).
Parameter 538, Alarm word:
Gives in Hex code which alarm is on the adjustable
frequency drive. See Warning word, extended Set the required time.
status word and alarm word.
Parameter 539, Control word:

561 Protocol
Gives the present control word on the adjustable
(PROTOCOL)
frequency drive in Hex. See Serial communication
Value:
for the VLT 2800.
✭FC protocol (FC PROTOKOL) [1]
Parameter 540, Warning word: Metasys N2 (METASYS N2) [2]
Gives whether there is a warning on the adjustable
frequency drive in Hex. See Warning word, extended Function:
status word and alarm word. There is a choice of two different protocols.
Parameter 541, Extended status word: Description of choice:

Gives whether there is a warning on the adjustable Select the required control word protocol.
frequency drive in Hex code. See Warning word,
For further information about using the Metasys
extended status word and alarm word.
N2 Protocol see MG91C1XX.
Parameter 544, Pulse count:
This parameter can be read out via the LCP display
Programming
(009-012). When you run with counter stop, this 580-582 Defined parameters
parameter enables you, either with or without reset, to
(DEFINED PNU’S)
read the number of pulses registered by the device.
Value:
The highest frequency is 67.6 kHz, while the lowest is 5
Read only
Hz. The counter is reset when counter stop is restarted.
Function:
The three parameters hold a list of all the parameters
560 N2 Override release time that are defined in the VLT 2800. It is possible to read
(N2 OVER.REL.TIME) single elements of the list by using the corresponding
Value: subindex. The subindexes start at 1 and follow
1 - 65534 (OFF) sec. ✭ OFF the order of the parameter numbers.
Function: Each parameter holds up to 116 elements

(parameter numbers).
In this parameter, the maximum time is set which
is expected to pass between the receipt of two N2 When a 0 is returned as parameter number the list ends.
telegrams in a row. If this time is exceeded, the serial
communication is assumed to have stopped and
all points in the N2 point-map which are overridden
will be released in the order below:
1. Release Analog Outputs from point
2. Release Binary Outputs from point address
(NPA) 0 to 255.
VLT® 2800 Series
■ Technical functions
6 0 0-6 05 O pe ra t i n g D at a
Val ue:
Par. no. Description Display text Unit Range
600 Operating hours (OPERATING HOURS) Hours 0-130,000.0
601 Hours run (RUNNING HOURS) Hours 0-130,000.0
602 kWh counter (KWH COUNTER) kWh Depends on unit
603 Number of power-ups (POWER UPS) Number of times 0-9999
604 Number of (OVER TEMPS) Number of times 0-9999
overtemperatures
605 Number of overvoltages (OVER VOLTS) Number of times 0-9999
Function: NOTE
These parameters can be read out via the serial Parameters 615-617 Fault log cannot be read
communication port and the LCP control unit. out via the integral control unit.
Parameter 600, Operating hours: 615 Fault log : Error code
Gives the number of hours the adjustable frequency
(F.LOG: ERROR COD)
drive has been operating. The value is saved
Value:
every hour and when there is an AC line failure.
[Index 1 - 10] Error code: 0 - 99
This value cannot be reset.
Parameter 601, Hours run: Function:

Gives the number of hours the motor has been In this parameter it is possible to see the reason
operating since the reset in parameter 619 Reset of for a trip (cut-out of the adjustable frequency drive)
hours-run counter. The value is saved every hour occurring. 10 [1-10] log values are defined.
and when there is an AC line failure. The lowest log number [1] contains the latest/most
recently saved data value. The highest log number [10]
Parameter 602, kWh counter: contains the oldest data value saved. If a trip occurs,
Gives the adjustable frequency drive’s output energy it is possible to see the cause, time and a possible
in kWh. The calculation is based on the mean kW value of the output current or output voltage.
value over one hour. This value can be reset using
parameter 618 Reset of kWh counter. Description of choice:
Range: 0 - depends on unit. Given as a fault code, in which the number refers to a
table. See the table in Warnings/alarm messages.
Parameter 603, Number of power-ups:
Gives the number of power-ups of the supply voltage
undertaken on the adjustable frequency drive.
Parameter 604, Number of overtemperatures:

Gives the number of overtemperature faults
that have been registered on the adjustable
frequency drive’s heatsink.
Parameter 605, Number of overvoltages:

Gives the number of overvoltages of the intermediate
circuit voltage in the adjustable frequency drive. This is
only counted when Alarm 7 Overvoltage is active.

VLT® 2800 Series
616 Fault log: Time NOTE

When the [OK] key is activated, the
(F.LOG: TIME)
counter is reset to zero.
Value:
[Index 1 - 10] Hours: 0 - 130,000.0
Function:
In this parameter it is possible to see the total number
of operating hours in connection with the last 10 trips.
10 [1-10] log values are denoted. The lowest
log number [1] contains the latest/most recently
saved data value, and the highest log number
[10] contains the oldest data value.
Read out as one value.
617 Fault log: Value

(F.LOG: VALUE)
Value:
[Index 1 - 10] Value: 0 - 9999
Function:
In this parameter it is possible to see at which value a
trip occurred. The unit of the value depends on which
Programming
alarm is active in parameter 615 Fault log: Fault code.
Read out as one value.
618 Reset of kWh counter

(RESET KWH COUNT)
Value:
✭No reset (DO NOT RESET) [0]
Reset (RESET COUNTER) [1]
Function:
Resetting parameter 602 kWh counter to zero.
If Reset [1] is selected and you press the [OK] key,
the adjustable frequency drive’s parameter 602 is
reset to zero Hours run. This parameter cannot
be selected via serial communication.
VLT® 2800 Series
See also the DeviceNet manual MG.90.BX.YY

619 Reset Running Hours Counter
for further details.
(RESET RUN. HOUR)
Value:
✭No reset (DO NOT RESET) [0]
Reset (RESET COUNTER) [1]
Function:
Resetting of parameter 601 Hours run to zero.
If Reset [1] is selected and you press the [OK] key,
the adjustable frequency drive’s parameter 601 is
reset to zero Hours run. This parameter cannot
Use the following procedure for the control card test:
be selected via serial communication.
1. Select control card test.
NOTE 2. Disconnect the AC line voltage and wait until the
When the [OK] key is activated the light in the display has disappeared.
parameter is reset to zero. 3. Mount according to drawing and description.
4. Connect the AC line voltage.
5. The adjustable frequency drive automatically
620 Operation Mode undertakes a test of the control card.
(OPERATION MODE)
If the adjustable frequency drive displays a fault code
Value: from 37-45, the control card test has failed. Change the
✭Normal operation (NORMAL OPERATION) [0] control card to start up the adjustable frequency drive.
Control card test (CONTROL CARD TEST) [2] If the adjustable frequency drive comes into Display
Initialize (INITIALIZE) [3] mode, the test is OK. Remove the test connector
and the adjustable frequency drive is ready for
Function:
operation. Parameter 620 Operating mode is
In addition to its normal function, this parameter
automatically set to Normal operation [0].
can be used to test the control card.
There is also the opportunity to perform an Initialization [3] is selected if you wish to use
initialization at the factory setting for all parameters the unit’s factory setting.
in all Setups, with the exception of parameters Procedure for initialization:
500 Address, 501 Baudrate, 600-605 Operating 1. Select Initialization [3].
data and 615-617 Fault log. 2. Disconnect the AC line voltage and wait until the
light in the display has disappeared.
3. Connect the AC line voltage.
Normal function [0] is used for normal 4. An initialization is performed in all parameters
operation of the motor. in all Setups, with the exception of parameters
Control card test [2] is selected if you wish to check 500 Address, 501 Baudrate, 600-605 Operating
the control card’s analog/digital inputs, analog/digital data and 615-617 Fault log.
outputs, relay outputs and 10 V and 24 V voltages.
The test is performed as follows:
27 - 29 - 33 - 46 are connected.
50 - 53 are connected.
42 - 60 are connected.
12 - relay terminal 01 is connected.

VLT® 2800 Series
6 2 1- 6 42 N am e p la t e
Val ue:
Par. Description Display text
no Nameplate
621 Unit type (DRIVE TYPE)
624 Software version (SOFTWARE VERSION)
625 LCP identification no. (LCP VERSION)
626 Database identification no. (DATABASE VER.)
627 Power parts version (POWER UNIT DB ID)
628 Application option type (APP. OPTION)
630 Communication option type (COM. OPTION)
632 BMC software identification (BMC-SOFTWARE ID)
634 Unit identification for communication (UNIT ID)
635 Software parts no. (SW. PART NO.)
640 Software version (SOFTWARE VERSION)
641 BMC-software identification (BMC2 SW)
642 Power card identification (POWER ID)
Function: Here you can see which types of communication

The unit’s main data can be read out from parameters options are installed in the adjustable frequency drive.
621 to 635 Nameplate using the optional LCP 2 control
unit or serial communication. Parameters 640 - 642
can also be seen on the unit’s integral display.
Parameter 621 Nameplate: Unit type:
Gives unit size and AC line voltage.
Example: VLT 2811 380-480 V.
Programming
Parameter 624 Nameplate: Software version no.:
The unit’s present software version number
appears here.
Example: V 1.00
Parameter 625 Nameplate: LCP ID number:

The ID number of the unit’s LCP appears here.
Example: ID 1.42 2 kB
Parameter 626 Nameplate: Database ID number:

The ID number of the software’s database appears here.
Example: ID 1.14.
Parameter 627 Nameplate: Power section version:

The ID number of the unit’s power section appears here.
Example: ID 1.15.
Parameter 628 Nameplate: Application option type:

Here you can see which types of application options
are installed in the adjustable frequency drive.
Parameter 630 Nameplate: Communication

option type:
VLT® 2800 Series
Parameter 632 Nameplate: BMC software

identification:
The ID number of the BMC software appears here.
Parameter 634 Nameplate: Unit identification

for communication:
The ID number for communication appears here.
Parameter 635 Nameplate: Software section no.:

The software section number appears here.
Parameter 640 Nameplate: Software version:

The unit’s present software version number
appears here. Example: 1.00
Parameter 641 Nameplate: BMC software

identification:
The ID number of the BMC software appears here.
Parameter 642 Nameplate: Power card identification:

The ID number of the unit’s power part appears
here. Example: 1.15

VLT® 2800 Series
■ Warnings/alarm messages and corrective actions

Wherever an "X" is placed under both Warning and
The table below gives the drive’s warnings and
Alarm in the table below, this means that a Warning
alarms and indicates whether the fault trip locks the
precedes the Alarm. It can also mean that it is possible
drive. After a Trip Lock Fault, the input power must
to program whether a given fault is to result in a
be removed, the cause of the fault corrected, and
Warning or an Alarm. This is possible, for example,
input power restored to reset the drive. A Trip can
through parameter 128, Motor thermal protection.
be reset manually in any one of three ways.
After a trip, the motor will be coasting and the drive’s
Alarm and Warning indications will flash. If the fault is
1. Pressing the keypad key RESET
removed, only the Alarm will flash. After a reset, the
2. A digital input
drive will be ready to start operation again.
3. Serial communication
In addition, an automatic reset may be selected In the following detailed descriptions of warning
in parameter 405, Reset function which will and alarm messages, corrective actions to resolve
reset all non-trip lock faults. the condition are recommended.
No. Description Warning Alarm Trip
locked
2 Live zero error (LIVE ZERO ERROR) X X X
4 AC line phase loss (AC LINE PHASE LOSS) X X X
5 Voltage warning high (DC LINK VOLTAGE HIGH) X
6 Voltage warning low (DC LINK VOLTAGE LOW) X
7 Overvoltage (DC LINK OVERVOLT) X X X
8 Undervoltage (DC LINK UNDERVOLT) X X X
9 Inverter overload (INVERTER TIME) X X
10 Motor overloaded ( MOTOR, TIME) X X
11 Motor thermistor (MOTOR THERMISTOR) X X
12 Current limit (CURRENT LIMIT) X X
13 Overcurrent (OVERCURRENT) X X X
14 Ground fault (GROUND FAULT) X X
15 Switch mode fault (SWITCH MODE FAULT) X X
16 Short-circuit (CURR. SHORT CIRCUIT) X X
17 Serial communication timeout (STD BUS TIMEOUT) X X
18 HPFB bus timeout (HPFB TIMEOUT) X X
33 Out of frequency range (OUT FREQ RNG/ROT LIM) X
34 HPFB communication fault (PROFIBUS OPT. FAULT) X X
35 Inrush fault (INRUSH FAULT) X X
36 Overtemperature (OVERTEMPERATURE) X X
37-45 Internal fault (INTERNAL FAULT) X X
All about VLT
50 AMT not possible X

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51 AMT fault re. nameplate data (AMT TYPE.DATA FAULT) X

54 AMT wrong motor (AMT WRONG MOTOR) X
55 AMT timeout (AMT TIMEOUT) X
56 AMT warning during AMT (AMT WARN. DURING AMT) X
99 Locked (LOCKED) X
LED indication
Warning yellow
Alarm red
Trip locked yellow and red

VLT® 2800 Series
WARNING/ALARM 2: Live zero fault DC bus can occur if the motor frequency is reduced
The voltage or current signal on terminal 53 or too quickly due to ramp-down time being too short.
60 is below 50% of the preset value in parameter
309 or 315 Terminal, min. scaling. WARNING/ALARM 8: Undervoltage
If the DC bus voltage is lower than the inverter’s
WARNING/ALARM 4: AC line phase fault Undervoltage limit, the inverter will switch off until the
Missing phase on AC line supply side. VDC once more goes above the undervoltage limit.
Check the supply voltage to the adjustable frequency Check whether the supply voltage fits the adjustable
drive. This fault is only active in 3-phase AC line. frequency drive. (See Technical data.) If the VDC
remains under the undervoltage limit, the inverter will
WARNING 5: Voltage warning high trip after a fixed period of time. The time depends on
If the DC bus voltage (VDC) is higher than the unit and is set at 1 - 3 sec. When the adjustable
Voltage warning high, the adjustable frequency frequency drive is switched off an alarm 8 (and warning
drive will give a warning and the motor will 6) is displayed briefly and a trip reset is generated.
continue to operate unchanged.
NOTE: Voltage warning low (warning 6) will thus
Check whether the supply voltage matches the rating also be able to generate an alarm 8.
of the adjustable frequency drive. (See Technical data.)
If the VDC remains above the voltage warning limit, the WARNING/ALARM 9: Inverter overload
inverter will trip after a fixed period of time. The time Electronic thermal inverter protection indicates that the
depends on the unit and is set at 5 - 10 sec. adjustable frequency drive is close to disconnecting due
to overloading (output current too high for too long). The
NOTE: The adjustable frequency drive will trip with counter for electronic thermal inverter protection gives
an alarm 7 (overvoltage). A voltage warning can also a warning at 98% and trips at 100% giving an alarm.
occur if the motor frequency is reduced too quickly
due to the ramp down time being too short. The adjustable frequency drive cannot be reset
until the counter is below 90%. Remove the
WARNING 6: Voltage warning low overload condition to the drive.
If the DC bus voltage (VDC) is lower than Voltage warn
low, the adjustable frequency drive will give a warning WARNING/ALARM 10: Motor overloaded
and the motor will continue to operate unchanged. According to the electronic thermal inverter protection
the motor is too hot. In parameter 128 the user can
Check whether the supply voltage matches the rating select whether the VLT adjustable frequency drive
of the adjustable frequency drive. (See Technical data.) should emit a warning or an alarm when the counter
NOTE: The adjustable frequency drive will trip with reaches 100%. This fault is due to the motor being
an alarm 5 (undervoltage). When the adjustable overloaded by more than 100% for too long.
frequency drive is switched off, a warning 6 (and Check that motor parameters 102-106 are set correctly.
warning 8) is displayed briefly.
WARNING/ALARM 11: Motor thermistor
WARNING/ALARM 7: Overvoltage The motor is too hot or the thermistor/thermistor
If the DC bus voltage (VDC) is higher than the inverter’s connection is cut off. Parameter 128 Motor thermal
Overvoltage limit, the inverter will switch off until the protection allows a choice of whether the adjustable
VDC once more falls below the overvoltage limit. If the frequency drive is to give a warning or an alarm.
VDC remains above the overvoltage limit, the inverter
will trip after a fixed period of time. The time depends Check that the PTC thermistor has been correctly
on the unit and is set at 5 - 10 sec. When the inverter connected between terminal 18, 19, 27 or 29 (digital
is switched off a trip reset is generated. input) and terminal 50 (+10 V supply).
NOTE: Voltage warning high (warning 5) will thus also

be able to generate an alarm 7. An overvoltage in the

VLT® 2800 Series
WARNING/ALARM 12: Current limit

The output current is greater than the value in
WARNING/ALARM 18: HPFB bus timeout
parameter 221 Current Limit ILIM.
There is no serial communication to the adjustable
The adjustable frequency drive will trip after a frequency drive’s communication option card.
set period of time, as selected in parameter
The warning will only be active when parameter 804 Bus
409 Trip delay overcurrent.
time interval function has been set to a value other than
WARNING/ALARM 13: Overcurrent OFF. If parameter 804 Bus time interval function has
The inverter’s peak current limit (approx. 200% of been set to Stop and trip, it will first give a warning and
rated output current) has been exceeded. The warning then ramp down, trip and issue an alarm. Parameter
will last for approx. 1-2 secs, and the adjustable 803 Bus time interval could possibly be increased.
frequency drive will then trip and give an alarm.
WARNING 33: Out of frequency range
Switch off the adjustable frequency drive and check This warning is active if the output frequency has
that the motor shaft can be turned and that the motor reached Output frequency low limit (parameter 201)
size fits the adjustable frequency drive. or Output frequency high limit (parameter 202).
ALARM: 14: Ground fault If the VLT adjustable frequency drive is in a mode other
There is a discharge from the output phases to ground, than Process regulation, closed loop (parameter 100)
either in the cable between the adjustable frequency the warning will be active in the display. If the VLT
drive and the motor, or in the motor. adjustable frequency drive is in a mode other than
Process regulation, closed loop bit 008000 Out of
Turn off the adjustable frequency drive and frequency range in the extended status word will be
remove the ground fault. active, but there will be no warning in the display.
ALARM: 15: Switch mode fault WARNING/ALARM: 34: HPFB communication fault
Fault in switch mode power supply (internal supply). Communication fault only occurs in Profibus versions.
Contact your Danfoss supplier. ALARM 35: Inrush fault
This alarm appears when the adjustable frequency
ALARM: 16: Short-circuit
drive has been connected to the AC line supply
There is a short-circuit on the motor terminals
too many times within 1 minute.
or in the motor.
WARNING/ALARM 36: Overtemperature
Disconnect the AC line supply to the adjustable
If the temperature of the heatsink moves above
frequency drive and remove the short-circuit.
167°F - 185°F (75° - 85°C), depending on the unit,
WARNING/ALARM 17: Serial commu- the adjustable frequency drive gives a warning,
nication timeout and the motor continues to operate unchanged.
All about VLT
There is no serial communication to the If the temperature continues to rise, the switching
2800
adjustable frequency drive. frequency is reduced automatically.
The warning will only be active when parameter 514 Bus See Temperature-dependent switching frequency.
time interval function has been set to a value other than If the temperature of the heatsink rises above 199°F
OFF. If parameter 514 Bus time interval function has - 212°F (92 - 100 °C), depending on the unit, the
been set to Stop and trip [5], it will first give a warning adjustable frequency drive will trip.
and then until it trips and issues an alarm. Parameter
The temperature fault cannot be reset until the
513 Bus time interval could possibly be increased.
temperature of the heatsink has dropped to below
158°F (70 °C). The tolerance is ±9°F (±5 °C). The
temperature can be caused by the following:
- Ambient temperature too high.
- Motor cable too long.

VLT® 2800 Series
- AC line voltage too high. ALARMS 50-56: AMT faults

ALARM 50: AMT not possible
ALARMS 37-45: Internal faults One of the following three possibilities can occur:
ALARM 37: Internal fault number 0 - The calculated RS value falls outside permitted limits.
Communication fault between control card and BMC2. - The motor current in at least one of the
ALARM 38: Internal fault number 1 motor phases is too low.
Flash EEPROM fault on control card. - The motor in use is too small for AMT
calculations to be performed.
ALARM 39: Internal fault number 2
RAM fault on control card. ALARM 51: AMT Fault re. nameplate data
There is inconsistency in the registered motor data.
Calibration constant error in EEPROM. Check the motor data for the relevant setup.
ALARM 41: Internal fault number 4 ALARM 52: AMT faulty motor phase
Data values error in EEPROM. The motor current in at least one of the motor
phases is too low.
Fault in motor parameter database. ALARM 55: AMT timeout
The calculations are taking too long, possibly
ALARM 43: Internal fault number 6 due to noise in the motor cables.
General power card fault.
ALARM 56: AMT warning during AMT
ALARM 44: Iinternal fault number 7 An adjustable frequency drive warning is given
Minimum software version of control card or BMC2. while AMT is being performed.
ALARM 45: Internal fault number 8 WARNING 99: Locked

I/O fault (digital input/output, relay or analog The control panel functions have been locked
input/output). via parameter 018.
NOTE
When restarting after an alarm 38-45,
the VLT adjustable frequency drive will
display an alarm 37. In parameter 615 the
actual alarm code can be read.
Alarm/warning limits:
Without brake With brake Without brake With brake
VLT 2800 1 / 3 x 200 - 240 V 1 / 3 x 200 - 240 V 3 x 380 - 480 V 3 x 380 - 480 V
[VDC] [VDC] [VDC] [VDC]
Undervoltage 215 215 410 410
Voltage warning low 230 230 440 440
Voltage warning high 385 400 765 800
Overvoltage 410 410 820 820
The voltages stated are the intermediate circuit of ± 5 %. The corresponding line voltage is the
voltage of the frequency converter with a tolerance intermediate circuit voltage divided by 1.35.

VLT® 2800 Series
■ Warning words, extended status words B i t (H ex ) A l a r m w o rd s

and alarmwords 000002 Triplock
Warning words, status words and alarm words appear 000004 AMT tuning fail
in the display in Hex format. If there are several 000040 HPFB bus timeout
warnings, status words or alarms, a total of all will be 000080 Standard bus timeout
displayed. Warning words, status words and alarm 000100 Curr. short circuit
words can also be read out using the serial bus in 000200 Switch mode fault
parameters 540, 541 and 538 respectively. 000400 Ground fault
000800 Overcurrent
B i t (H ex ) Wa r ning w ords 002000 Motor thermistor
000008 HPFB bus timeout 004000 Motor overload
000010 Standard bus timeout 008000 Inverter overload
000040 Current limit 010000 Undervolt
000080 Motor thermistor 020000 Overvolt
000100 Motor overload 040000 Phase loss
000200 Inverter overload 080000 Live zero error
000400 Undervolt 100000 Heat sink temperature too high
000800 Overvolt 2000000 Profibus communication fault
001000 Voltage warning low 8000000 Inrush fault
002000 Voltage warning high 10000000 Internal fault
004000 Phase loss
010000 Live zero error
400000 Out of frequency range
800000 Profibus communication fault
40000000 Switch mode warning
80000000 Heat sink temperature high
B i t ( H ex ) E x t e n d e d s t a t u s w o rd s
000001 Ramping
000002 AMT running
000004 Start forw./reverse
000008 Slow down
000010 Catch-up
000020 Feedback high
000040 Feedback low
000080 Output current high
000100 Output current low
000200 Output frequency high
All about VLT
000400 Output frequency low

002000 Braking
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008000 Out of frequency range

VLT® 2800 Series
■ Special conditions of aggressive gases in the air are black copper rails
and cable ends on existing electrical installations.
■ Extreme environments
An adjustable frequency drive contains a number
of mechanical and electronic components which ■ Galvanic isolation (PELV)
are vulnerable to environmental impact. PELV (Protective Extra-Low Voltage) separation is
Do not install the adjustable frequency drive achieved with galvanic separators between control
circuits and circuits connected to the AC line potential.
in environments where liquids, particles
or gases in the air would damage the These separators meet the requirements for increased
electronics of the drive. Take all necessary measures isolation in standard EN 50 178. Installation must be in
accordance with local and national PELV regulations.
to protect the drive. There is a risk of fault trips
and reduced service life of the drive. All control terminals, terminals for serial communication
and relay terminals are safely separated from the
Liquids carried through the air can condense in the
AC line potential, i.e. they comply with the PELV
adjustable frequency drive. Liquids may facilitate
requirements. Circuits that are connected to control
galvanic corrosion of components and metal parts.
terminals 12, 18, 19, 20, 27, 29, 33, 42, 46, 50, 55,
Steam, oil and brine may also cause corrosion of
53 and 60 are galvanically connected to one another.
components and metal parts. In these areas, it
Serial communication connected to terminals 67 -
is recommended to install units in cabinets. As a
70 is galvanically isolated from the control terminals,
minimum, cabinets should meet NEMA 12.
although this is only a functional isolation.
Particles in the air, such as dust, may lead to The relay contacts in terminals 1 - 3 are separated
mechanical, electrical and thermal faults in the from the other control circuits with increased isolation,
adjustable frequency drive. A typical indicator i.e. these comply with PELV even if there is AC
of too many particles in the air is dust around line potential in the relay terminals.
the fan. In very dusty areas, mounting the drive
The circuit elements described below form the safe
in a cabinet is recommended. As a minimum,
electric separation. They fulfill the requirements
cabinets should meet NEMA 12.
for increased isolation and associated testing
Aggressive gases, such as sulfur, nitrogen and pursuant to EN 50 178.
chlorine compounds, together with high humidity and 1. Optical isolation between basic motor control
temperature, facilitate possible chemical processes and control card.
on the components of the adjustable frequency 2. Optical isolation between basic motor control
drive. These chemical processes quickly damage the and control card.
electronics. In these areas, mounting in a cabinet with 3. Isolation between the control card and
fresh-air circulation is recommended, thereby ensuring the power part.
that aggressive gases are kept away from the drive. 4. Relay contacts and terminals relating to other
circuits on the control card.
NOTE
Installation of adjustable frequency drives PELV isolation of the control card is guaranteed
in extreme environments increases the risk under the following conditions:
of down-time, and considerable reduction - TT network with maximum 300 Vrms between
of the service life of the drive. phase and ground.
- TN network with maximum 300 Vrms between
Before the adjustable frequency drive is installed, check phase and ground.
whether there are liquids, particles or gases in the air. - IT network with maximum 400 Vrms between
Examine existing installations in the same environment. phase and ground.
Typical indicators of harmful airborne liquids are water or At higher voltages only SELV is achieved.
oil on metal parts or corrosion. Too many dust particles
are typically observed on top of cabinets. Indication

VLT® 2800 Series
■ UL/cUL Standards
All VLT 2800 series adjustable frequency drives
are both UL and cUL listed.
All about VLT

2800

VLT® 2800 Series
■ General technical data
AC line supply (L1, L2, L3):

Supply voltage VLT 2803-2815 220-240 V (N, L1) .......................................................... 1 x 220/230/240 V ±10%
Supply voltage VLT 2803-2840 200-240 V ....................................................... 3 x 200/208/220/230/240 V ±10%
Supply voltage VLT 2805-2882 380-480 V ....................................................... 3 x 380/400/415/440/480 V ±10%
Supply frequency ..................................................................................................................................... 50/60 Hz
Max. imbalance on supply voltage ......................................................................... ± 2.0 % of rated supply voltage
True Power Factor (λ) ..................................................................................................... 0.90 nominal at rated load
Displacement Power Factor (cos ϕ) ............................................................................................ near unity (> 0.98)
Number of switches on supply input L1, L2, L3 .................................................................................. 2 times/min.
Max. short-circuit value ......................................................................................................................... 100,000 A
Output data (U, V, W):

Output voltage .............................................................................................................. 0 - 100% of supply voltage
Output frequency ........................................................................................................... 0.2 - 132 Hz, 1 - 1000 Hz
Rated motor voltage, 200-240 V units .............................................................................. 200/208/220/230/240 V
Rated motor voltage, 380-480 V units ...................................................................... 380/400/415/440/460/480 V
Rated motor frequency ............................................................................................................................ 50/60 Hz
Switching on output ................................................................................................................................. Unlimited
Ramp times .................................................................................................................................. 0.02 - 3600 sec.
Torque characteristics:
Starting torque (parameter 101 Torque characteristic = Constant torque) ....................................... 160% in 1 min.*
Starting torque (parameter 101 Torque characteristics = Variable torque) ....................................... 160% in 1 min.*
Starting torque (parameter 119 High starting torque) ................................................................. 180% for 0.5 sec.*
Overload torque (parameter 101 Torque characteristic = Constant torque) ................................................... 160%*
Overload torque (parameter 101 Torque characteristic = Variable torque) ..................................................... 160%*
*Percentage relates to adjustable frequency drive’s nominal current.
Control card, digital inputs:

Number of programmable digital inputs ................................................................................................................ 5
Terminal number ......................................................................................................................... 18, 19, 27, 29, 33
Voltage level ........................................................................................................... 0 - 24 VDC (PNP positive logic)
Voltage level, logic ’0’ ................................................................................................................................ < 5 VDC
Voltage level, logic ’1’ .............................................................................................................................. > 10 VDC
Maximum voltage on input ......................................................................................................................... 28 VDC
Input resistance, Ri (terminals 18, 19, 27, 29) .................................................................................... approx. 4 k
Input resistance, Ri (terminal 33) ....................................................................................................... approx. 2 k
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals. See section entitled Galvanic Isolation.

VLT® 2800 Series
Control card, analog inputs:

Number of analog voltage inputs .................................................................................................................. 1 pcs.
Terminal number ................................................................................................................................................. 53
Voltage level .......................................................................................................................... 0 - 10 V DC (scalable)
Input resistance, Ri ........................................................................................................................ approx. 10 k
Max. voltage ................................................................................................................................................... 20 V
Number of analog current inputs ................................................................................................................... 1 pcs.
Terminal number ................................................................................................................................................. 60
Current level ........................................................................................................................ 0/4 - 20 mA (scalable)
Input resistance, Ri ......................................................................................................................... approx. 300
Max. current ................................................................................................................................................ 30 mA
Resolution for analog inputs ........................................................................................................................... 10 bit
Accuracy of analog inputs .............................................................................................. Max. error 1% of full scale
Scan interval .......................................................................................................................................... 13.3 msec
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-
voltage terminals. See section entitled Galvanic Isolation.
Control card, pulse inputs:

Number of programmable pulse inputs ................................................................................................................. 1
Terminal number ................................................................................................................................................. 33
Max. frequency on terminal 33 ............................................................................................... 67.6 kHz (Push-pull)
Max. frequency on terminal 33 ............................................................................................. 5 kHz (open collector)
Min. frequency on terminal 33 ........................................................................................................................ 4 Hz
Voltage level ........................................................................................................... 0 - 24 VDC (PNP positive logic)
Voltage level, logic ’0’ ................................................................................................................................ < 5 VDC
Voltage level, logic ’1’ .............................................................................................................................. > 10 VDC
Maximum voltage on input ......................................................................................................................... 28 VDC
Input resistance, Ri .......................................................................................................................... approx. 2 k
Scan interval .......................................................................................................................................... 13.3 msec
Resolution ..................................................................................................................................................... 10 bit
Accuracy (100 Hz - 1 kHz) terminal 33 ....................................................................... Max. error: 0.5% of full scale
Accuracy (1 kHz - 67.6 kHz) terminal 33 .................................................................... Max. error: 0.1% of full scale
The pulse input (terminal 33) is galvanically isolated from the supply voltage (PELV) and other
high-voltage terminals. See section entitled Galvanic Isolation.
Control card, digital/frequency output:

All about VLT
Number of programmable digital/pulse outputs ............................................................................................ 1 pcs.

2800
Terminal number ................................................................................................................................................. 46

Voltage level at digital/frequency output .............................................................................. 0 - 24 V DC (O.C PNP)
Max. output current at digital/frequency output .......................................................................................... 25 mA.
Max. load at digital/frequency output ............................................................................................................. 1 k
Max. capacity at frequency output ................................................................................................................. 10 nF
Minimum output frequency at frequency output ............................................................................................ 16 Hz
Maximum output frequency at frequency output .......................................................................................... 10 kHz
Accuracy on frequency output .................................................................................. Max. error: 0.2 % of full scale
Resolution on frequency output ..................................................................................................................... 10 bit
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals. See section entitled Galvanic Isolation.

VLT® 2800 Series
Control card, analog output:

Number of programmable analog outputs ............................................................................................................. 1
Terminal number ................................................................................................................................................. 42
Current range at analog output ............................................................................................................ 0/4 - 20 mA
Max. load to common at analog output ....................................................................................................... 500
Accuracy on analog output ....................................................................................... Max. error: 1.5 % of full scale
Resolution on analog output .......................................................................................................................... 10 bit
The analog output is galvanically isolated from the supply voltage (PELV) and other high-
Control card, 24 V DC supply:

Terminal number ................................................................................................................................................. 12
Max. load .................................................................................................................................................. 130 mA
The 24 VDC supply is galvanically isolated from the supply voltage (PELV), but has the same potential as
the analog and digital inputs and outputs. See section entitled Galvanic Isolation.
Control card, 10 V DC supply:

Terminal number ................................................................................................................................................. 50
Output voltage .................................................................................................................................. 10.5 V ±0.5 V
Max. load .................................................................................................................................................... 15 mA
The 10 VDC supply is galvanically isolated from the supply voltage (PELV) and other high-
Control card, RS 485 serial communication:

Terminal number ......................................................................................................... 68 (TX+, RX+), 69 (TX-, RX-)
Terminal number 67 ....................................................................................................................................... + 5 V
Terminal number 70 ..................................................................................... Common for terminals 67, 68 and 69
Full galvanic isolation. See section entitled Galvanic Isolation.
For DeviceNet units, see VLT 2800 DeviceNet manual, MG.90.BX.YY.
Relay outputs:
Number of programmable relay outputs ................................................................................................................ 1
Terminal number, control card ............................................................................................. 1-3 (break), 1-2 (make)
Max. terminal load (AC) on 1-3, 1-2, control card .............................................................................. 240 VAC, 2 A
Min. terminal load on 1-3, 1-2, control card ......................................................... 24 VDC 10 mA, 24 VAC 100 mA
The relay contact is separated from the rest of the circuit by strengthened isolation.
See section entitled Galvanic Isolation.
Cable lengths and cross sections:

Max. motor cable length, screened/armored cable ............................................................................. 130 ft (40 m)
Max. motor cable length, unscreened/unarmored cable ..................................................................... 250 ft (75 m)
Max. motor cable length, screened/armored cable and motor coil .................................................... 325 ft (100 m)
Max. motor cable length, unscreened/unarmored cable and motor coil ............................................ 650 ft (200 m)
Max. motor cable length, screened/armored cable and RFI/1B filter ...................................... 200 V, 325 ft (100 m)
Max. motor cable length, screened/armored cable and RFI/1B filter .......................................... 400 V, 80 ft (25 m)
Max. motor cable length, screened/armored cable and RFI 1B/LC filter ..................................... 400 V, 80 ft (25 m)
Max. cross section to motor, see next section.
Max. cross section to control cables, rigid cable ................................................. 1.5 mm2/16 AWG (2 x 0.75 mm2)
Max. cross section to control cables, flexible cable ........................................................................ 1 mm2/18 AWG

VLT® 2800 Series
Max. cross section to control cables, cable with enclosed core .................................................. 0.5 mm2/20 AWG
When complying with EN 55011 1A and EN 55011 1B the motor cable must be reduced in certain instances.
Control characteristics:
Frequency range ............................................................................................................ 0.2 - 132 Hz, 1 - 1000 Hz
Resolution of output frequency ......................................................................................... 0.013 Hz, 0.2 - 1000 Hz
Repeat accuracy of Precise start/stop (terminals 18, 19) .................................................................... ≤ ± 0.5 msec
System response time (terminals 18, 19, 27, 29, 33) ........................................................................... ≤ 26.6 msec
Speed control range (open loop) .................................................................................. 1:15 of synchronous speed
Speed control range (closed loop) .............................................................................. 1:120 of synchronous speed
Speed accuracy (open loop) ....................................................................... 90 - 3600 rpm: Max. error of ±23 rpm
Speed accuracy (closed loop) .................................................................... 30 - 3600 rpm: Max. error of ±7.5 rpm
All control characteristics are based on a 4-pole asynchronous motor
Ambient conditions:
Enclosure ................................................................................................................................................. Standard
Optional enclosure ..................................................................................................................................... NEMA 1
Vibration test .................................................................................................................................................. 0.7 g
Max. relative humidity .................................................................................................. 5% - 85% during operation
Ambient temperature, standard enclosure ...................... Max. 113°F (45 °C) 24-hour average max. 104°F (40 °C)
Ambient temperature NEMA 1 ......................................... Max. 104°F (40 °C), 24-hour average max. 95°F (35 °C)
Min. ambient temperature during full-scale operation ............................................................................ 32°F (0 °C)
Min. ambient temperature at reduced performance ........................................................................... 14°F (-10 °C)
Temperature during storage/transport ................................................... 0°F (-25°C) to 150°F/158°F (+65°C/70 °C)
Max. altitude above sea level ........................................................................................................ 3300 ft (1000 m)
EMC standards used, Emission .................................................................... EN 50081-2, EN 61800-3, EN 55011
EMC standards used, immunity ......................................................................................................................... EN
50082-1/2, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61800-3
Safeguards:
• Electronic thermal motor protection against overload.

• Temperature monitoring of the heatsink ensures that the adjustable frequency drive cuts
out if the temperature reaches 212°F (100 °C). An overload temperature cannot be reset
until the temperature of the heatsink is below 70 °C.
• The adjustable frequency drive is protected against short circuits on motor terminals U, V, W.
All about VLT
• If an AC line phase is missing, the adjustable frequency drive will cut out.
2800
• Monitoring of the intermediate circuit voltage ensures that the adjustable frequency drive cuts
out if the intermediate circuit voltage is too low or too high.
• The adjustable frequency drive is protected against ground fault on motor terminals U, V, W.

VLT® 2800 Series
■ Technical data, AC line supply 1 x 220 - 240 V/3 x 200-240V

Acc. to international requirements Type 2803 2805 2807 2811 2815 2822 2840
Output current IINV. [A] 2.2 3.2 4.2 6.0 6.8 9.6 16
(3 x 200-240V) IMAX (60s) [A] 3.5 5.1 6.7 9.6 10.8 15.3 25.6
Output power (230 V) SINV. [KVA] 0.9 1.3 1.7 2.4 2.7 3.8 6.4
Typical shaft output PM,N [kW] 0.37 0.55 0.75 1.1 1.5 2.2 3.7
Typical shaft output PM,N [HP] 0.5 0.75 1.0 1.5 2.0 3.0 5.0
Max. cable cross section, [mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10 4/10
motor
Input current IL,N [A] 5.9 8.3 10.6 14.5 15.2 - -

(1 x 220-240 V) IL,MAX (60s) [A] 9.4 13.3 16.7 23.2 24.3 - -
Input current IL,N [A] 2.9 4.0 5.1 7.0 7.6 8.8 14.7
(3 x 200-240 V) IL,MAX (60s) [A] 4.6 6.4 8.2 11.2 12.2 14.1 23.5
Max. cable cross section, [mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10 4/10
power
Max. pre-fuses [A]/UL 2) [A] 20/20 20/20 20/20 20/20 20/20 20/20 25/25
Efficiency3) [%] 95 95 95 95 95 95 95
Power loss at max. load [W] 24 35 48 69 94 125 231
Weight [kg] 2.0 2.0 2.0 2.0 2.0 3,7 6.0
Enclosure4) type IP20 IP20 IP20 IP20 IP20 IP20 IP20
1. American Wire Gauge. Max. cable cross

section is the largest cable cross section that
can be attached to the terminals. Always follow
national and local regulations.
2. To comply with UL/cUL, the pre-fuses must
be Bussmann KTN-R 200 V, KTS-R 500 V or
Ferraz Shawmut, type ATMR (max. 30A). The
fuses must provide protection in a circuit capable
of supplying a maximum of 100,000 amps RMS
(symmetrical), 500 V maximum.
3. Measured using a 80 ft (25 m) screened/armored
motor cable with a rated load and rated frequency.
4. IP20 is standard for VLT 2805-2875, whereas
NEMA 1 is an option.

VLT® 2800 Series
■ Technical data, AC line supply 3 x 380 - 480 V

Acc. to international requirements Type 2805 2807 2811 2815 2822 2830
Output current IINV. [A] 1.7 2.1 3.0 3.7 5.2 7.0
(3 x 380-480V) IMAX (60s) [A] 2.7 3.3 4.8 5.9 8.3 11.2
Output power (400 V) SINV. [KVA] 1.1 1.7 2.0 2.6 3.6 4.8
Typical shaft output PM,N [kW] 0.55 0.75 1.1 1.5 2.2 3.0
Typical shaft output PM,N [HP] 0.75 1.0 1.5 2.0 3.0 4.0
Max. cable cross section, motor [mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10
Input current IL,N [A] 1.6 1.9 2.6 3.2 4.7 6.1
(3 x 380-480 V) IL,MAX(60s)[A] 2.6 3.0 4.2 5.1 7.5 9.8
Max. cable cross section, power [mm2/AWG] 1) 4/10 4/10 4/10 4/10 4/10 4/10
Max. pre-fuses [A]/UL 2) [A] 20/20 20/20 20/20 20/20 20/20 20/20
Efficiency3) [%] 96 96 96 96 96 96
Power loss at max. load [W] 28 38 55 75 110 150
Weight [kg] 2.1 2.1 2.1 2.1 3.7 3.7
Enclosure4) type IP 20 IP 20 IP 20 IP 20 IP 20 IP 20
Acc. to international requirements Type 2840 2855 2875 2880 2881 2882
Output current IINV. [A] 9.1 12 16 24 32.0 37.5
(3 x 380-480V) IMAX (60s) [A] 14.5 19.2 25.6 38.4 51.2 60.0
Output power (400 V) SINV. [KVA] 6.3 8.3 11.1 16.6 22.2 26.0
Typical shaft output PM,N [kW] 4.0 5.5 7.5 11.0 15.0 18.5
Typical shaft output PM,N [HP] 5.0 7.5 10.0 15.0 20.0 25.0
Max. cable cross section, motor [mm2/AWG] 1) 4/10 4/10 4/10 16/6 16/6 16/6
Input current IL,N [A] 8.1 10.6 14.9 24.0 32.0 37.5
(3 x 380-480 V) IL,MAX(60s)[A] 13.0 17.0 23.8 38.4 51.2 60
Max. cable cross section, power [mm2/AWG] 1) 4/10 4/10 4/10 16/6 16/6 16/6
Max. pre-fuses [A]/UL 2) [A] 20/20 25/25 25/25 50/50 50/50 50/50
Efficiency3) [%] 96 96 96 97 97 97
Power loss at max. load [W] 200 275 372 412 562 693
Weight [kg] 3.7 6.0 6.0 18.5 18.5 18.5
Enclosure4) type IP 20 IP 20 IP 20 IP 20 / IP 20 / IP 20 /
NEMA 1 NEMA 1 NEMA 1
1. American Wire Gauge. Max. cable cross

section is the largest cable cross section that
All about VLT
can be attached to the terminals. Always follow

national and local regulations.
2800
2. To comply with UL/cUL the pre-fuses used

must be Bussmann KTN-R 200 V, KTS-R 500 V
or Ferraz Shawmut, type ATMR (max. 30A). The
fuses must provide protection in a circuit capable
of supplying a maximum of 100,000 amps RMS
(symmetrical), 500 V maximum.
3. Measured using a 80 ft (25 m) screened/armored
motor cable with a rated load and rated frequency.
4. IP20 is standard for VLT 2805-2875, whereas
NEMA 1 is an option.

VLT® 2800 Series
■ Available literature
■ Supplied with the unit

Below is a list of the literature available for VLT
2800. It must be noted that there may be deviations
from one country to the next.
Supplied with the unit:

Operating instructions ....................................................................................................................... MG.28.AX.YY
Various literature for VLT 2800:

Design Guide .................................................................................................................................... MG.28.EX.YY
Data sheet ........................................................................................................................................ MD.28.AX.YY
Parameter list .................................................................................................................................... MG.28.DX.YY
Instructions for VLT 2800:

LCP remote-mounting kit .................................................................................................................... MI.56.AX.51
Filter instruction .................................................................................................................................. MI.28.B1.02
VLT 2800 DeviceNet cable ................................................................................................................... MI.28.F1.02
Cold plate ........................................................................................................................................... MI.28.D1.02
Precise stop ........................................................................................................................................ MI.28.C1.02
Communication with VLT 2800:

Profibus manual ................................................................................................................................ MG.90.AX.YY
VLT 2800 DeviceNet manual ............................................................................................................. MG.90.BX.YY
X = version number
YY = language version

VLT® 2800 Series
■ Factory settings
PNU # Parameter Factory setting 4-setup Conv. Data
description index type
001 Language English No 0 5
002 Local/remote operation Remote- Yes 0 5
controlled
003 Local reference 000,000.000 Yes -3 4
004 Active Setup Setup 1 No 0 5
005 Programming Setup Active Setup No 0 5
006 Setup copying No copying No 0 5
007 LCP copy No copying No 0 5
008 Display scaling 1.00 Yes -2 6
009 Large display readout Frequency [Hz] Yes 0 5
010 Small display line 1.1 Reference [%] Yes 0 5
011 Small display line 1.2 Motor current Yes 0 5
[A]
012 Small display line 1.3 Power [kW] Yes 0 5
013 Local control Remote Yes 0 5
control
as par. 100
014 Local stop Active Yes 0 5
015 Local jog Not active Yes 0 5
016 Local reversing Not active Yes 0 5
017 Local reset of trip Active Yes 0 5
018 Lock for data changes Not locked Yes 0 5
019 Operating status at Forced stop, Yes 0 5
power up use saved ref.
020 Lock for Hand mode Active No 0 5
024 User-defined Quick Menu Not active No 0 5
025 Quick Menu Setup 000 No 0 6
4-Setup:
’Yes’ means that the parameter can be programmed Data type:
individually in each of the four Setups, i.e. one single Data type shows the type and length of the telegram.
parameter can have four different data values. No’
Data type Description
means that the data value will be the same in all Setups.
3 Integer 16
All about VLT
4 Integer 32
Conversion index:
5 Unsigned 8
This number refers to a conversion figure to be used
2800
6 Unsigned 16
when writing or reading via serial communication
7 Unsigned 32
with an adjustable frequency drive.
9 Text string
Conversion Index Conversion Factor
74 3.6
2 100.0
1 10.0
0 1.0
-1 0.1
-2 0.01
-3 0.001
-4 0.0001

VLT® 2800 Series
PNU # Parameter- Factory setting 4-setup Conv. Data-

100 Configuration Speed reg., open loop Yes 0 5
101 Torque characteristics Constant torque Yes 0 5
102 Motor power PM,N depends on unit Yes 1 6
103 Motor voltage UM,N depends on unit Yes -2 6
104 Motor frequency fM,N 50 Hz Yes -1 6
105 Motor current IM,N depends on motor selected Yes -2 7
106 Rated motor speed depends on par. 102 Yes 0 6
107 Automatic motor tuning Optimization off Yes 0 5
108 Stator resistance RS depends on motor selected Yes -3 7
109 Stator reactance XS depends on motor selected Yes -2 7
119 High start torque 0.0 sec Yes -1 5
120 Start delay 0.0 sec Yes -1 5
121 Start function Coast in start del. Yes 0 5
122 Function at stop Coast Yes 0 5
123 Min. freq. for activation of 0.1 Hz Yes -1 5
par. 122
126 DC braking time 10 sec. Yes -1 6
127 DC brake cut-in frequency OFF Yes -2 6
128 Thermal motor protection No protection Yes 0 5
130 Start frequency 0.0 Hz Yes -1 5
131 Initial voltage 0.0 V Yes -1 6
132 DC brake voltage 0% Yes 0 5
133 Start voltage depends on unit Yes -2 6
134 Load compensation 100.0 % Yes -1 6
135 U/f-ratio depends on unit Yes -2 6
136 Slip compensation 100 % Yes -1 3
137 DC hold voltage 0% Yes 0 5
138 Brake cut out value 3.0 Hz Yes -1 6
139 Brake cut in frequency 3.0 Hz Yes -1 6
140 Current, minimum value 0% Yes 0 5
142 Spread reactance depends on motor selected Yes -3 7
143 Internal fan control Automatic Yes 0 5
144 Gain AC brake 1.30 Yes -2 5
146 Reset voltage vector Off Yes 0 5

VLT® 2800 Series

200 Output frequency range Clockwise only, 0-132 Hz Yes 0 5
201 Output frequency, 0.0 Hz Yes -1 6
low limit fMIN
202 Output frequency, 132 Hz Yes -1 6
high limit fMAX
203 Reference range Min ref.-Max ref. Yes 0 5
204 Minimum ref RefMIN 0.000 Hz Yes -3 4
205 Maximum ref RefMAX 50.000 Hz Yes -3 4
206 Ramp type Linear Yes 0 5
207 Ramp-up time 1 3.00 sec. Yes -2 7
208 Ramp-down time 1 3.00 sec. Yes -2 7
209 Ramp-up time 2 3.00 sec. Yes -2 7
210 Ramp-down time 2 3.00 sec. Yes -2 7
211 Jog ramp time 3.00 sec. Yes -2 7
212 Quick stop ramp-down time 3.00 sec. Yes -2 7
213 Jog frequency 10.0 Hz Yes -1 6
214 Reference function Sum Yes 0 5
215 Preset reference 1 0.00% Yes -2 3
219 Catch up/slow down 0.00% Yes -2 6
reference
221 Current limit 160 % Yes -1 6
223 Warn. Low current 0.0 A Yes -1 6
224 Warn. High current IMAX Yes -1 6
225 Warn. Low frequency 0.0 Hz Yes -1 6
226 Warn. High frequency 132.0 Hz Yes -1 6
227 Warn. Low Feedback -4000.000 Yes -3 4
228 Warn.High Feedback 4000.000 Yes -3 4
229 Frequency bypass, 0 Hz (OFF) Yes 0 6
bandwidth
230 Frequency bypass 1 0.0 Hz Yes -1 6
231 Frequency bypass 2 0.0 Hz Yes -1 6 All about VLT
2800

VLT® 2800 Series

302 Digital input, term. 18 Start Yes 0 5
303 Digital input, term. 19 Reversing Yes 0 5
304 Digital input, term. 27 Reset and coast Yes 0 5
inverse
305 Digital input, term. 29 Jog Yes 0 5
307 Digital input, term. 33 No function Yes 0 5
308 Term. 53, analog input voltage Reference Yes 0 5
309 Term. 53, min scaling 0.0 VDC Yes -1 6
310 Term. 53, max scaling 10.0 VDC Yes -1 6
314 Term. 60, analog input current No function Yes 0 5
315 Term. 60, min scaling 0.0 mA Yes -1 6
316 Term. 60, max scaling 20.0 mA Yes -1 6
317 Time out 10 sec. Yes 0 5
318 Function after timeout No function Yes 0 5
319 Term. 42, analog output 0-IMAX = 0-20 mA Yes 0 5
323 Relay output Control ready Yes 0 5
327 Pulse ref./FB 5000 Hz Yes 0 7
341 Term. 46, digital output Control ready Yes 0 5
342 Term. 46, max. pulse scaling 5000 Hz Yes 0 6
343 Precise stop function Normal ramp stop Yes 0 5
344 Counter value 100000 pulses Yes 0 7
349 Speed comp delay 10 ms Yes -3 6
4-Setup: Data type Description

’Yes’ means that the parameter can be programmed 3 Integer 16
individually in each of the four Setups, i.e. one single 4 Integer 32
parameter can have four different data values. No’ 5 Unsigned 8
means that the data value will be the same in all Setups. 6 Unsigned 16
7 Unsigned 32
Conversion index: 9 Text string
74 3.6
2 100.0
1 10.0
0 1.0
-1 0.1
-2 0.01
-3 0.001
-4 0.0001
Data type:
Data type shows the type and length of the telegram.

VLT® 2800 Series

400 Brake function Depends on unit type No 0 5
405 Reset function Manual reset Yes 0 5
406 Automatic restart time 5 sec. Yes 0 5
409 Trip delay overcurrent Off (61 sec.) Yes 0 5
411 Switching frequency 4.5 kHz Yes 0 6
412 Var. switching frequency No LC-filter Yes 0 5
413 Overmodulation function On Yes 0 5
414 Min. feedback 0.000 Yes -3 4
415 Max. feedback 1500.000 Yes -3 4
416 Process units No unit Yes 0 5
417 Speed PID propor.gain. 0.010 Yes -3 6
418 Speed PID intergra. time 100 ms Yes -2 7
419 Speed PID differen. time 20.00 ms Yes -2 7
420 Speed PID diff. gain limit 5.0 Yes -1 6
421 Speed PID lowpass filter time 20 ms Yes 0 6
423 U1 voltage par. 103 Yes -1 6
424 F1 frequency Par. 104 Yes -1 6
426 F2 frequency par. 104 Yes -1 6
428 F3 frequency par. 104 Yes -1 6
437 Proc. PID no/inv. Normal Yes 0 5
438 Proc. PID anti wind. Active Yes 0 5
439 Proc. PID start frequency Par. 201 Yes -1 6
440 Proc. PID start 0.01 Yes -2 6
proportional gain.
441 Proc. PID integration time Off (9999.99 s) Yes -2 7
442 Proc. PID differentiation time Off (0.00 s). Yes -2 6
443 Proc. PID diff. gain limit 5.0 Yes -1 6
444 Proc. PID lowpass filter time 0.02 s Yes -2 6
445 Flying start Not possible Yes 0 5
451 Speed PID FF factor 100% Yes 0 6
452 Controller range 10% Yes -1 6
456 Brake voltage reduce 0 Yes 0 5
All about VLT
2800

VLT® 2800 Series
PNU # Parameter description Factory setting 4-setup Conv.index Datatype

500 Address 1 No 0 5
501 Baudrate 9600 Baud No 0 5
502 Coasting stop Logic or Yes 0 5
503 Quick stop Logic or Yes 0 5
504 DC brake Logic or Yes 0 5
505 Start Logic or Yes 0 5
506 Reversing Logic or Yes 0 5
507 Selection of Setup Logic or Yes 0 5
508 Selection of preset ref. Logic or Yes 0 5
509 Bus jog 1 10.0 Hz Yes -1 6
510 Bus jog 2 10.0 Hz Yes -1 6
512 Telegram profile FC protocol Yes 0 5
513 Bus time interval 1 sec. Yes 0 5
514 Bus time interval function Off Yes 0 5
515 Data readout: Reference % No -1 3
516 Data readout: Reference [unit] No -3 4
517 Data readout: Feedback [unit] No -3 4
518 Data readout: Frequency No -1 3
519 Data readout: Frequency x scaling No -1 3
520 Data readout: Motor current No -2 7
521 Data readout: Torque No -1 3
522 Data readout: Power [kW] No -2 7
523 Data readout: Power [HP] No -2 7
524 Data readout: Motor voltage [V] No -1 6
525 Data readout: DC Link voltage No 0 6
526 Data readout: Motor thermal load No 0 5
527 Data readout: Inverter thermal load No 0 5
528 Data readout: Digital input No 0 5
529 Data readout: Analog input, term. 53 No -1 5
531 Data readout: Analog input, term. 60 No -4 5
532 Data readout: Pulse reference No -1 7
533 Data readout: External reference No -1 6
534 Data readout: Status word No 0 6
537 Data readout: Inverter temperature No 0 5
538 Data readout: Alarm word No 0 7
539 Data readout: Control word No 0 6
540 Data readout: Warning word No 0 7
541 Data readout: Extended status word No 0 7
544 Data readout: Pulse Count No 0 7

VLT® 2800 Series
PNU # Parameter description Factory setting 4-setup Conv.index Data type
600 Operating hours No 73 7

601 Hours run No 73 7
602 kWh counter No 2 7
603 Number of power-ups No 0 6
604 Number of overtemperatures No 0 6
605 Number of overvoltages No 0 6
615 Fault log: Error code No 0 5
616 Fault log: Time No 0 7
617 Fault log: Value No 0 3
618 Reset of kWh counter No reset No 0 7
619 Reset of running hours counter No reset No 0 5
620 Operation mode Normal operation No 0 5
621 Nameplate: Unit type No 0 9
624 Nameplate: Software version No 0 9
625 Nameplate: LCP identification no. No 0 9
626 Nameplate: Database identification no. No -2 9
627 Nameplate: Power parts version No 0 9
628 Nameplate: Application option type No 0 9
630 Nameplate: Communication option type No 0 9
632 Nameplate: BMC software identification No 0 9
634 Nameplate: Unit identification for communication No 0 9
635 Nameplate: Software parts no. No 0 9
640 Software version No -2 6
641 BMC software identification No -2 6
642 Power card identification No -2 6
4-Setup:
’Yes’ means that the parameter can be programmed Data type:
individually in each of the four Setups, i.e. one single Data type shows the type and length of the telegram.
parameter can have four different data values. No’
Data type Description
means that the data value will be the same in all Setups.
3 Integer 16
4 Integer 32
Conversion index:
5 Unsigned 8
6 Unsigned 16
7 Unsigned 32
9 Text string
All about VLT

2800
74 3.6
2 100.0
1 10.0
0 1.0
-1 0.1
-2 0.01
-3 0.001
-4 0.0001

VLT® 2800 Series
A Fan control .................................................................. 44

AC brake .................................................................... 63 Fault log ..................................................................... 80
AC line connection ........................................................ 14 Feedback .................................................................... 64
Address ...................................................................... 72 Flying start .................................................................. 70
Analog input ................................................................ 56 Four Setups................................................................. 29
Analog output .............................................................. 58
Automatic motor tuning .................................................. 38
G
Gain AC brake ............................................................. 45
B Galvanic isolation (PELV) ................................................. 90
Baudrate ..................................................................... 72 General warning ........................................................... 4
Brake connection .......................................................... 15 Ground connection ....................................................... 15
Brake cut in frequency ................................................... 44 Grounding ................................................................... 8
Brake cut out value ....................................................... 44
Brake function .............................................................. 63
Brake Voltage Reduce ................................................... 71 H
Bus jog ....................................................................... 76 Hand / Auto mode operation ........................................... 24
Bus time interval ........................................................... 76 Hand mode ................................................................. 34
High voltage warning ..................................................... 8
C
Catch up .................................................................... 50 I
Constant torque ........................................................... 36 Initialize....................................................................... 82
Control cables .............................................................. 10 Input fuses .................................................................. 14
Control of mechanical brake ............................................ 16
Control terminals .......................................................... 17
Control wires ............................................................... 17
J
Jog frequency .............................................................. 49
Counter value .............................................................. 61
Jog ramp time .............................................................. 49
Current limit ................................................................. 50
Current, minimum value .................................................. 44
L
Language.................................................................... 28
D
Literature .................................................................... 98
DC brake time .............................................................. 41
Load compensation....................................................... 43
DC brake voltage .......................................................... 42
Load sharing................................................................ 15
DC hold voltage ............................................................ 43
Local reference ............................................................. 28
Diagram ...................................................................... 11
Digital inputs ................................................................ 54
Digital output ............................................................... 60
M
Direction of motor rotation .............................................. 14
Manual initialization........................................................ 21
Display ....................................................................... 21
Maximum Pulse 29........................................................ 60
Display mode ............................................................... 22
Mechanical dimensions .................................................. 5
Mechanical installation ................................................... 7
Menu mode ................................................................. 22
E
Electrical installation, control circuitry ................................. 17
Motor cables ............................................................... 15
ETR - Electronic ThermalRelay ......................................... 41
Motor connection ......................................................... 14
Motor current ............................................................... 37
Extreme environments ................................................... 90
Motor frequency ........................................................... 37
Motor power ................................................................ 37
F Motor voltage............................................................... 37

VLT® 2800 Series
O Start voltage ................................................................ 42

Output frequency .......................................................... 46 Stator reactance ........................................................... 38
Overmodulation function ................................................. 64 Stator resistance........................................................... 38
Status messages .......................................................... 24
STOP/RESET............................................................... 21
P Sub D plug .................................................................. 19
Parallel connection of motors ........................................... 15 Sum .......................................................................... 49
Precise stop function ..................................................... 61 Switching frequency ...................................................... 64
Preset reference ........................................................... 50
Process control, closed loop ........................................... 36
Process PID ................................................................ 68 T
Process units ............................................................... 65 Telegram Profile ............................................................ 76
Programming the adjustable frequency drive ....................... 23 Temperature-related switching frequency ............................ 26
Pulse/reference feedback ............................................... 60 Terminals .................................................................... 20
Thermal motor protection ............................................... 41
Thermistor .............................................................. 42, 55
Q Time out ..................................................................... 57
Quick menu ............................................................ 22, 22
Quick-stop ramp-down time ............................................ 49
U
U/f-ratio ...................................................................... 43
R UL/cUL Standards ........................................................ 90
Ramp type .................................................................. 48 User-defined Quick Menu ............................................... 35
Ramp-down time .......................................................... 48
Ramp-up time .............................................................. 48
Rated motor speed ....................................................... 37 V
Recidual Current Device ................................................. 15 Variable torque ............................................................. 36
Reference ................................................................... 47 VLT 2800 start-up ......................................................... 26
Reference function ........................................................ 49 VLT Software Dialog ...................................................... 19
Relative...................................................................... 49
Relay connection .......................................................... 18
Relay output 1-3 ........................................................... 58 W
Reset function .............................................................. 63 Warning functions ......................................................... 50
Reset voltage vector ...................................................... 45 Warning words, extended status words and alarmwords ....... 89
Reversing .................................................................... 54 Warnings/alarm messages and ....................................... 85
Warnings/alarms ........................................................... 25
All about VLT
S
2800
Slip compensation ........................................................ 43

Slow down .................................................................. 50
Special motor mode ...................................................... 36
Speed comp delay ........................................................ 61
Speed control, closed loop ............................................. 36
Speed control, open loop ............................................... 36
Speed PID .................................................................. 65
Spread reactance ......................................................... 44
Start delay ................................................................... 40
Start frequency ............................................................. 42
Start function ............................................................... 40
Start torque ................................................................. 39

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VLT® 2800 VLT® 2800
Instruction Manual Instruction Manual
Drives Solutions
195R0027 MG28A722 www.danfoss.com/drives
*MG28A722* REV. 2003-02-04

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VLT® 2800 VLT® 2800

Instruction Manual Instruction Manual

Introduction to VLT 2800 ............................................................................. 3

MG.28.A7.22 - VLT is a registered Danfoss trademark 1

Operation & Display ................................................................................................ 28

All about VLT 2800 ......................................................................................... 85

2 MG.28.A7.22 - VLT is a registered Danfoss trademark

Document Version Number 5.00.

These operating instructions can be used for all VLT 2800

Indicates a general warning.

Indicates a high-voltage warning.

MG.28.A7.22 - VLT is a registered Danfoss trademark 3

■ General warning that 4 minutes has passed before removing

4 MG.28.A7.22 - VLT is a registered Danfoss trademark

VLT 2822 200-240 Volt

MG.28.A7.22 - VLT is a registered Danfoss trademark 5

■ Motor coils (195N3110)

■ RFI 1B filter (195N3103)

6 MG.28.A7.22 - VLT is a registered Danfoss trademark

The requirements that apply to enclosures

■ Spacing for mechanical installation

MG.28.A7.22 - VLT is a registered Danfoss trademark 7

■ General information about electrical installation

■ High voltage warning

The voltage of the adjustable frequency

• Safety grounding: The drive has a high leakage

Connect all grounds to ensure the lowest possible

To achieve low impedance, connect the drive to the

■ High voltage test

8 MG.28.A7.22 - VLT is a registered Danfoss trademark

MG.28.A7.22 - VLT is a registered Danfoss trademark 9

■ Grounding of screened/armored control cables

10 MG.28.A7.22 - VLT is a registered Danfoss trademark

MG.28.A7.22 - VLT is a registered Danfoss trademark 11

VLT 2803-2815 200-240 V, 2805-2815 380-480 V

12 MG.28.A7.22 - VLT is a registered Danfoss trademark

VLT 2880-2882 380-480V

MG.28.A7.22 - VLT is a registered Danfoss trademark 13

■ Safety clamp 380-460 Volt units with RFI-filters may not

See Technical data for correct dimensioning

■ AC line connection Connect the motor to terminals 96, 97, 98.

No. N(L2) L1(L1) (L3) AC line voltage 3 x 220-240 V

14 MG.28.A7.22 - VLT is a registered Danfoss trademark

parameter 128, Motor thermal protection, for ETR Trip.

Keep the motor cable as short as possible to reduce

The adjustable frequency drive is able to control

MG.28.A7.22 - VLT is a registered Danfoss trademark 15

■ Load sharing drive is not able to ’support’ the motor, as when

Note that voltage levels of up to 850 V DC

■ Tightening Torque, Power Terminals

■ Control of mechanical brake

16 MG.28.A7.22 - VLT is a registered Danfoss trademark

■ Access to control terminals

Control wires must be shielded/armored. Connect the

MG.28.A7.22 - VLT is a registered Danfoss trademark 17

■ Tightening torques, control cables

■ Electrical installation, control terminals ■ Relay connection

1. The terminals are not valid for DeviceNet. See the