REL551 Operators Manual

Operators manual
REL 551*2.3
Line differential protection terminal
About this manual:

DocID: 1MRK 506 076-UEN
Issue date: January 2001
Status: New
Revision: 00
ABB Automation Products AB 2001

Substation Automation Division
COPYRIGHT
WE RESERVE ALL RIGHTS TO THIS DOCUMENT, EVEN IN THE EVENT THAT A PATENT IS ISSUED AND A DIFFERENT
COMMERCIAL PROPRIETARY RIGHT IS REGISTERED. IMPROPER USE, IN PARTICULAR REPRODUCTION AND DIS-
SEMINATION TO THIRD PARTIES, IS NOT PERMITTED.
THIS DOCUMENT HAS BEEN CAREFULLY CHECKED. IF THE USER NEVERTHELESS DETECTS ANY ERRORS, HE IS
ASKED TO NOTIFY US AS SOON AS POSSIBLE.
THE DATA CONTAINED IN THIS MANUAL IS INTENDED SOLELY FOR THE PRODUCT DESCRIPTION AND IS NOT TO BE
DEEMED TO BE A STATEMENT OF GUARANTEED PROPERTIES. IN THE INTERESTS OF OUR CUSTOMERS, WE CON-
STANTLY SEEK TO ENSURE THAT OUR PRODUCTS ARE DEVELOPED TO THE LATEST TECHNOLOGICAL STAN-
DARDS. AS A RESULT, IT IS POSSIBLE THAT THERE MAY BE SOME DIFFERENCES BETWEEN THE HW/SW PRODUCT
AND THIS INFORMATION PRODUCT.
Manufacturer:
ABB Automation Products AB
Substation Automation Division
SE-721 59 Vsters
Sweden
Tel: +46 (0) 21 34 20 00
Fax: +46 (0) 21 14 69 18
Internet: http://www.abb.se
Contents
Chapter Page
Chapter 1 Introduction ..................................................................... 1
Introduction to the operators manual .................................................. 2

About this manual ........................................................................... 2
Intended audience .......................................................................... 2
Revisions ........................................................................................ 3
Chapter 2 Safety information........................................................... 5
Warnings.............................................................................................. 6
Chapter 3 Overview .......................................................................... 7
Operator overview ............................................................................... 8
Chapter 4 Understand the human-machine interface ................... 9
Human Machine Interface Overview.................................................. 10

Application .................................................................................... 10
Design .......................................................................................... 10
Functionality ................................................................................. 13
HMI module LED indications ............................................................. 14
Chapter 5 Understand the HMI tree............................................... 15
Overview............................................................................................ 16
DisturbReport..................................................................................... 18
Disturbance .................................................................................. 18
CalcDistToFlt ................................................................................ 18
ManualTrig.................................................................................... 18
ClearDistRep ................................................................................ 19
ServiceReport .................................................................................... 20
ServiceValues............................................................................... 20
Phasors ........................................................................................ 20
Functions ...................................................................................... 20
I/O ................................................................................................. 20
DisturbReport ............................................................................... 20
ActiveGroup .................................................................................. 20
Time.............................................................................................. 21
Settings.............................................................................................. 22
DisturbReport ............................................................................... 22
Functions ...................................................................................... 22
Contents
ChangeActGrp .............................................................................. 22
Time.............................................................................................. 22
TerminalReport .................................................................................. 23
SelfSuperv .................................................................................... 23
IdentityNo...................................................................................... 23
Modules ........................................................................................ 23
AnalogInput................................................................................... 23
Configuration ..................................................................................... 24
AnalogInput................................................................................... 24
I/O-modules .................................................................................. 24
DiffFunction................................................................................... 24
TerminalCom ................................................................................ 24
Time.............................................................................................. 25
DisturbReport................................................................................ 25
LocalHMI....................................................................................... 26
Identifiers ...................................................................................... 26
Command menu ................................................................................ 27
Test menu .......................................................................................... 28
Chapter 6 Handle the disturbances............................................... 29
Identify a disturbance......................................................................... 30
View the disturbance summary..................................................... 30
The disturbance summary ............................................................ 30
View the disturbance indications........................................................ 31
Navigate the menus...................................................................... 31
View the prefault and fault voltages and currents .............................. 32
View disturbance trigger levels .......................................................... 34
View disturbance sequence number.................................................. 36
Calculate the distance to fault............................................................ 37
How the distance to fault is displayed........................................... 37
Manually trigger the disturbance report ............................................. 39
View the used disturbance memory size ........................................... 40
Reset the LED alarms........................................................................ 41
Test the LEDs of the LED module ..................................................... 42
Chapter 7 View the protection system status .............................. 45
View the service values ..................................................................... 46

Available HMI service values........................................................ 46
View the primary and secondary phasors.......................................... 47
Contents

Available primary and secondary phasors.................................... 47
View the function block variables and output signals ........................ 49
Contents of the Functions menu related to function outputs ........ 50
Read the measured and calculated function values .......................... 55
View the calculated impedances .................................................. 55
Calculated impedance values....................................................... 55
View the calculated direction ........................................................ 56
Calculated direction ...................................................................... 56
View the calculated differential values.......................................... 56
Calculated differential values........................................................ 57
View the differential communication values.................................. 57
Differential communication values ................................................ 58
View the thermal overload temperatures ...................................... 59
Thermal overload temperatures.................................................... 59
View the automatic recloser counters........................................... 59
Autorecloser counter values ......................................................... 60
View the synchrocheck values...................................................... 60
Synchrocheck values.................................................................... 61
View the event counter values...................................................... 61
Event counter values .................................................................... 62
View the I/O function block signals .................................................... 63
View the I/O module signals ......................................................... 63
I/O modules .................................................................................. 63
View the remote terminal communication data............................. 64
Available signals ........................................................................... 64
Determine the active setting group .................................................... 66
Clear the autorecloser counters......................................................... 67
Clear the differential communication counters................................... 68
Clear the event counters.................................................................... 69
Chapter 8 View the terminal unit status ...................................... 71
Find the reason of an internal failure ................................................. 72

Self supervision HMI data............................................................. 72
Identify the terminal ........................................................................... 74
Available identifiers....................................................................... 74
Read the terminal time....................................................................... 75
Retrieve the version of installed firmware.......................................... 76
Determine the installed modules ....................................................... 77
I/O modules .................................................................................. 77
Contents
Retrieve the nominal and rated values of analog inputs .................... 78

About this chapter Chapter 1
Introduction
Chapter 1 Introduction
About this chapter

This chapter introduces you to the operators manual, its purpose and usage.
1
Introduction to the operators manual Chapter 1
Introduction
1 Introduction to the operators manual
1.1 About this manual

Use the operators manual to view instructions concerning how to perform common
tasks during normal service.
The operators manual contains the following important chapters:
The safety information chapter reviews warnings and notes in the manual of which
you should be alert.
The human machine interface chapter describes the local human-machine interface
(HMI).
The disturbance chapter describes how to retrieve disturbance information and reset
alarms.
The protection system status chapter describes how to read service values, function
values and output signals
The terminal unit status chapter describes how to get information about the terminal
status.
The manual does not contain any instructions for commissioning or testing.
1.2 Intended audience
1.2.1 General
The operators manual addresses the operator, who operates the terminal on a daily ba-
sis.
1.2.2 Requirements
The operator must be trained and possess a basic knowledge in how to operate protec-
tion equipment. The manual contains terms and expressions commonly used to describe
this kind of equipment.
Documents related to REL 551*2.3 Identity number
Operators manual 1MRK 506 076-UEN
Installation and commissioning manual 1MRK 506 078-UEN
2
Introduction
Documents related to REL 551*2.3 Identity number
Technical reference manual 1MRK 506 077-UEN
Application manual 1MRK 506 112-UEN
Technical overview brochure 1MRK 506 075-BEN
1.3 Revisions
Revision Description
2.3-00 First revision
3
Introduction
4
Safety information
Chapter 2 Safety information
About this chapter

This chapter lists warnings and cautions that must be followed when handling the ter-
minal.
5
Warnings Chapter 2
Safety information
1 Warnings
Warning!
Do not touch circuitry during operation. Potentially lethal voltages and currents are
present.
Warning!
Always connect the terminal to protective ground, regardless of the operating condi-
tions. This also applies to special occasions such as bench testing, demonstrations and
off-site configuration. Operating the terminal without proper grounding may damage
both terminal and measuring circuitry, and may cause injuries in case of an accident.
Warning!
Never unmount the front or back cover from a powered terminal or from a terminal con-
nected to powered circuitry. Potentially lethal voltages and currents are present.
Warning!
Always avoid to touch the circuitry when the cover is removed. The product contains
electronic circuitries which can be damaged if exposed to static electricity (ESD). The
electronic circuitries also contain high voltage which is lethal to humans.
6
Overview
Chapter 3 Overview
About this chapter

This chapter describes operations an operator may perform on a daily basis or when the
need arises.
7
Operator overview Chapter 3
Overview
1 Operator overview
If a disturbance occurs the operator must document it and the fault that caused the dis-
turbance has to be evaluated and documented for future reference. The operator must
identify the disturbance and, for example, document the fault currents and voltages at
the time of the fault. The operator is also responsible for retrieving data about the pro-
tected network, which will give further information when investigating a fault. This im-
plies viewing the mean current, voltage, power and frequency or primary and secondary
measured phasors. The operator is able to check the terminal status at any time.
In some cases the operator is responsible for changing the way the terminal operates.
This could be changing the active setting group or a setting parameter value. This must
be done in strict accordance with the company regulations due to that a none authorized
change can cause severe damage to the protected object.
8
Understand the human-machine
interface
Chapter 4 Understand the

human-machine
interface
About this chapter

This chapter describes how the human-machine interface works from an operators
view.
9
Human Machine Interface Overview Chapter 4
interface
1 Human Machine Interface Overview
1.1 Application
The human machine interface is used to monitor and in certain aspects affect the way
the product operates. The configuration designer can add functions for alerting in case
of important events that needs special attention from you as an operator.
1.2 Design
The human-machine interface consists of:
the human-machine interface (HMI) module.

the LED module.
Figure 1: The figure shows the LED (upper) and the HMI (lower).
10
interface
Ready Start Trip

REL 531 Ver 2.3
C=Quit 2
E=Enter menu
C
3
5
E
1. Status indication LEDs
2. LCD display
3. Cancel and Enter buttons
4. Navigation buttons
5. Optical connector
Figure 2: The HMI module
The number of buttons used on the HMI module is reduced to a minimum to allow a
communication as simple as possible for the user. The buttons normally have more than
one function, depending on actual dialogue.
Pressing any button in idle mode will activate the HMI display.
The C button has three main functions:
11
interface
Cancel any operation in a dialogue window.

Exit the present level in the menu tree. This means, it cancels the present function
or the present menu selection and moves one step higher (back) in the menu tree.
Clear the LEDs when the start window is displayed.
Bring the HMI display into idle mode if pressed when the idle window is displayed
(Quit function).
The E button mainly provides an Enter/Execute function. It activates, for example, the
selected menu tree branch. Further it is used to confirm settings and to acknowledge
different actions.
The left and right arrow buttons have three functions:
Position the cursor in a horizontal direction, for instance, to move between digits in
a number during the parameter setting.
Move between leafs within the same menu branch.
Move between the confirmation alternatives (yes, no and cancel) in a command
window.
The up and down arrow buttons have three functions:
Move between selectable branches of the menu tree. This function also scrolls the
menu tree when it contains more branches than shown on the display.
Move between the confirmation alternatives in a command window.
Change parameter values in a data window
The LED indication module is equipped with 18 LEDs, which can light or flash in either
red, yellow or green color. A description text can be added for each of the LEDs.
12
interface
xx00000406.vsd
1 Three-color LEDs
2 Descriptive label, user exchangeable
Figure 3: The LED module
1.3 Functionality
The HMI module is a bidirectional means of communicating. This means that:
events may occur that activates for instance a LED, in purpose to draw your attention
to something that has occured and needs some sort of action.
you as the operator may of own interest view a certain data.
Use menus to navigate through menu commands and to locate the data of interest.
The LED module is a unidirectional means of communicating. This means that events
may occur that activates a LED, in purpose to draw your attention to something that has
occured and needs some sort of action.
13
HMI module LED indications Chapter 4
interface
2 HMI module LED indications

The LEDs above the LCD indicates the terminals status.
LEDs
green yellow red
Liquid Crystal Display

Ready Start Trip four rows
REL 531 Ver 2.3 16 characters/row
C=Quit
E=Enter menu
Optical connector C
Push buttons
for local PC
E
Figure 4: The LED indication module
Table 1: LED indications
Display Means
Off (no LED is lit) No power or defect terminal.
Steady green LED The terminal is ready for operation.
Flashing green LED Internal failure, startup is in progress
Flashing yellow LED Terminal in test mode.
Steady yellow LED Disturbance report trigged.
Steady red LED A binary signal, normally a TRIP command, has

been activated. Which binary signal(s) that are
supposed to activate the red LED is defined in
the disturbance report.
Flashing red LED Terminal blocked or in configuration mode.
14
Understand the HMI tree
Chapter 5 Understand the HMI

tree
About this chapter

This chapter describes the different Menu trees.
15
Overview Chapter 5
1 Overview
This chapter presents the main layout of the menu tree for the local human-machine in-
terface (HMI). The menu tree includes menus for:
Disturbance report
Service report
Settings
Terminal report
Configuration
Command
Test
Use SMS or SCS to activate or deactivate menus on the local human-machine interface
(HMI).
Note!
It is possible to completely turn off parts of the menu tree!
16
Overview Chapter 5
Main
Menu
- Configuration
- DisturbReport
AnalogInputs
Disturbance
I/O-modules
CalcDistToFit
DiffFunction
ManualTrig
TerminalCom
ClearDistRep
Time
- ServiceReport
LocalHMI
Servicevalues
Identifiers
Phasors
SelectLanguage
Functions
- Command
I/O
CD01
DisturbReport
CD02
ActiveGroup
CD03
Time
CD04
- Settings
CD05
DisturbReport
CD06
Functions
CD07
ChangeActGrp
CD08
Time
CD09
- TerminalReport
CD10
SelfSuperv
CD11
IdentityNo
- Test
Modules
TestMode
AnalogInput
ConfigMode
ThermReset xx00000721.vsd
Figure 5: Menu tree for REx 5xx.
17
DisturbReport Chapter 5
2 DisturbReport
Use this menu to display the information recorded by the REx 5xx terminal for the 10
latest disturbances, these commands are available:
Display information of a disturbance.

Calculate the distance to fault.
Manually trigger the disturbance reporting unit.
Clear the disturbance report memory.
To view the complete disturbance report, including the result of the event recorder and
the disturbance recorder, use a front-connected PC or the SMS or SCS.
2.1 Disturbance
A disturbance instance will show:
The time of disturbance, which is defined as the local terminal date and time when
the first triggering signal started the disturbance recording.
The trig signal, which started the recording.
Indications, activated during the recorded disturbance. Indications to be recorded
are selected during the terminal configuration procedure.
The fault locator will also report:
Fault location, provides information about the distance to the fault and the fault
loop used for the calculation.
Trip values, are displayed as phasors (RMS value and phase angle) of the currents
and voltages, before and during the fault.
2.2 CalcDistToFlt
Possible to recalculate the distance to fault with a different fault loop or with different
fault locator setting parameters. The recalculation is enabled since trip values are avail-
able for each disturbance that caused a phase-selective trip of the distance protection
function.
2.3 ManualTrig
Using the manual trigger creates an instant disturbance report. Use this function to get
a snapshot of the monitored line.
18
DisturbReport Chapter 5
2.4 ClearDistRep
The disturbance report has a dedicated storage memory, sufficient enough to save the
ten latest disturbances. The memory operates by the first-in first-out principle (FIFO).
This means that when the memory is full, the oldest recorded disturbance will be delet-
ed from memory when a new disturbance occurs. After clearing, the entire disturbance
memory will be empty.
19
ServiceReport Chapter 5
3 ServiceReport
The Service report menu displays the operating conditions of the terminal as well as
measured and calculated values and internal signal status.
3.1 ServiceValues
Presents the average values of measured current, voltage, active and reactive power and
frequency. Available when the transformer module option is installed.
3.2 Phasors
Presents the primary and secondary phasors of measured currents and voltages.
3.3 Functions
Presents the presently measured values and other information of the different parame-
ters for included functions.
3.4 I/O
Displays present logical values of all binary inputs and outputs of all installed I/O mod-
ules in the REx 5xx terminal.
3.5 DisturbReport
Provides information about the below listed items concerning the disturbance record-
ing.
Available free memory for further disturbance recording.

The sequence number for the next possibly recorded disturbance (can be viewed or
set).
The present status of analogue triggers that can start the disturbance recorder.
3.6 ActiveGroup
The present setting of active groups can be viewed here.
20
ServiceReport Chapter 5
3.7 Time
The current internal time for the REx 5xx terminal can be viewed here. The time is dis-
played in the form YYYY-MMM-DD and hh:mm:ss. All values but the month are pre-
sented with digits. The month is presented with the first three letters in current month.
21
Settings Chapter 5
4 Settings
Use this menu to select and set the different parameters for included protection and con-
trol functions in the REx 5xx terminal. There are four selectable and editable settings
group, each independent of the other, to structure desired functions and applications.
4.1 DisturbReport
This menu includes all setting parameters for the disturbance report. The following fea-
tures are available:
Sequence number can be set for each recorded disturbance.

Sampling rate is fixed at 1000 Hz.
Recording times for pre-fault, post-fault and time limit shall be set.
Fault locator settings shall be done here. It includes measurement duration and pre-
sentation of the result.
4.2 Functions
Settings of the parameters for the included protection and control functions are done
here. Four separate setting groups are avaible. First select desired group and then de-
sired function. One group can contain one or several functions.
4.3 ChangeActGrp
Select and change the active group setting. Each of the four groups can be set indepen-
dently of each other.
4.4 Time
To set the internal time in the REx 5xx terminal. The time is set in the form of YYYY-
MMM-DD and hh:mm:ss. All values but the month are presented with digits. The
month are presented with the first three letters in current month.
22
TerminalReport Chapter 5
5 TerminalReport
Use this menu to display information of the self supervision, terminal identity, software
version, modules and the analogue inputs.
5.1 SelfSuperv
The REx 5xx terminal has extensive built-in self-supervision functions to detect if in-
ternal faults occurs. If an error occurs, the green LED on the front panel will flash and
a warning signal will be activated. Use the self-supervision report to get information
about detected faults.
The self-supervision report can also be used to check the status of each installed module
as well as CPU, memory and clock operation.
5.2 IdentityNo
The terminal identity feature contains information as serial number and the software
version installed in the terminal.
5.3 Modules
This menu includes information about all included modules, such as I/O-modules and
MPM-module (CPU).
5.4 AnalogInput
Includes information about the analogue inputs, voltage and current, concerning nomi-
nal and rated values.
23
Configuration Chapter 5
6 Configuration
Use this menu to make a general configuration of the REx 5xx terminal. The CAP 531
configuration tool must be used to configure protection and control functions and the I/
O modules.
6.1 AnalogInput
Use this menu to configure general analogue input settings, such as:
general data about the power network, such as rated voltage, current, frequency and
the position of the earthing point.
CT and VT ratio.
user-defined labels for the analogue inputs and for the measured voltage, current, ac-
tive and reactive power and frequency.
6.2 I/O-modules
In this menu it is possible to:
reconfigure added or replaced I/O modules.

set the level for blocking of oscillating binary inputs.
6.3 DiffFunction
Use this menu to configure the differential protection functions as a part of networked
terminal system. Possible to change:
the differential synchronisation scheme

the master terminal identity
the remote (slave) terminal identity.
6.4 TerminalCom
Use this menu to configure the REx 5xx terminal communication buses, if any connect-
ed.
6.4.1 SPA communication

Use this menu to set the parameters for the front and rear ports used for SPA commu-
nication. Each communication channel must be set separately.
24
Slave number and baud rate (communication speed) must be set for both the ports.
These settings must correspond with the settings in the used PC-program. For the rear
port it is possible to set permission of changes between active setting groups, ActGr-
pRestrict, and the setting restrictions, SettingRestrict, as well.
6.4.2 IEC communication

Use this menu to set slave number and baud rate when to communicate on the IEC 870
5103 communications bus, also known as Schnittstelle 6 or VDEW 6. The IEC bus
uses the same rear optic port as the SPA bus, but the settings must be done separately.
6.4.3 LON communication

Use this menu to view node information as address and location, (set from the LON
Network Tool), as well as the Neuron identity. Functions for address setting during in-
stallation (ServicePinMSG), LON configuration reset (LONDefault) and session timers
are also available.
Note!
Session timers are for advanced usage and should only be changed upon recommenda-
tion from ABB Automation Products AB.
6.4.4 Remote terminal communication

Use this menu to configure the digital communication to remote terminal. This commu-
nication requires a certain digital communication module. The parameters to set are:
the bit rate

the fiber optics transmitter output power
the terminal master/slave operation.
6.5 Time
The internal terminal time can be synchronised with an external unit connected to the
SPA/IEC 870-5-103 port or the LON port. It is also possible to use a minute pulse syn-
chronisation signal connected to a digital input.
6.6 DisturbReport
This menu includes all setting parameters for the disturbance report. The following fea-
ture is available:
25
Clear the LEDs.
6.7 LocalHMI
Use this menu to to block the possibility to change settings via remote communication.
6.8 Identifiers
Use the identifiers to define and specify the location of and to define a terminal within
the power system. All identifier names are typed as strings, maximum 16 characters,
and the identity numbers are typed with digits. Typical usage are:
name and number of the station.

name and number of the bay or object.
name and number of the actual REx 5xx terminal.
26
Command menu Chapter 5
7 Command menu
Use this menu to manually select and execute any single or multiple signal command,
as defined from the configuration menu or the CAP 531 configuration tool. The sig-
nal(s) can be connected to any internal function or to a binary output of the terminal. It
is possible to assign a user-defined name to these binary signals.
27
Test menu Chapter 5
8 Test menu
Use this menu to enable easier secondary injection tests of the REx 5xx terminal. It is
possible to block functions to prevent trip of circuit breakers and activation of alarm sig-
nals etc. to the control room during the testing activities.
The selectable modes, from the HMI, is the TestMode and ConfigMode.
TestMode:
Setting the terminal in test mode operation

Blocking of one or several protection and control functions (selectable) during test
operation.
Blocking of one or several event functions (selectable) during test operation.
Setting the disturbance report and the disturbance summary to On or Off during test
operation.
Special test mode to facilitate the testing of the line differential protection function.
This Diff. TestMode disables the trip-out from the remote terminal and enables test
from one end.
ConfigMode:
Setting the terminal in configuration mode operation. This will automatically be

done when down-loading a configuration from the CAP 531 configuration tool.
When the down-loading is completed, the terminal automatically enters the normal
mode.
28
Handle the disturbances
Chapter 6 Handle the

disturbances
About this chapter

This chapter describes how to handle disturbances.
29
Identify a disturbance Chapter 6
1 Identify a disturbance
1.1 View the disturbance summary

View the disturbance summary when a disturbance occurrence is indicated by the lit
yellow LED of the HMI module.
The disturbance summary is automatically displayed and scrolled on the display. No

manual intervention is necessary.
1.2 The disturbance summary

The disturbance summary lists data about the two most recent disturbances:
The date and time of occurrence.

The indications list.
The fault loop and distance to fault.
The summaries of the two most recent disturbances are automatically scrolled on the
display in the following manner:
1. The most recent disturbance is summarized. The heading DistSummary1 is dis-

played. The heading remains on the second display row while related data are dis-
played.
2. The date and time the disturbance occurred are displayed.
3. The indications list is automatically scrolled signal by signal.
4. The fault loop and distance to fault are displayed.
5. The second most recent sequence disturbance is summarized according to steps 2-4
above. The heading DistSummary2 is displayed. The heading remains on the second
display row while related data are displayed.
6. The most recent disturbance summary is repeated.
7. The second most recent disturbance summary is repeated.
30
View the disturbance indications Chapter 6
2 View the disturbance indications
2.1 Navigate the menus

1. Only one disturbance can be viewed at the time. Select the
one to be viewed.
2. View the indications list.
Navigate the menus to:
DisturbReport
Disturbances
Disturbancen
Indications
n is the disturbance order of occurrence, n=1 meaning the most re-

cent and n=10 the least.
3. Scroll through the available signal indications.

Signals activated during the fault time of the disturbance recording
are listed.
31
View the prefault and fault voltages and Chapter 6
currents Handle the disturbances
3 View the prefault and fault voltages and currents

This procedure describes how to navigate the menus to view prefault and fault analog
values.
View prefault values

one to be viewed.
2. View prefault values.
DisturbReport
Disturbances
Disturbancen
TripValues
PreFault

3. Scroll through the available voltages and currents.

Use the Left and/or Right arrow buttons to scroll between values.
Viewing fault current

one to be viewed.
2. View fault current.
DisturbReport
Disturbances
Disturbancen
TripValues
Fault

32
View the prefault and fault voltages and Chapter 6
currents Handle the disturbances
3. Scroll through the available voltages and currents.

33
View disturbance trigger levels Chapter 6
4 View disturbance trigger levels

This procedure describes how to view the disturbance trigger levels.
1. View the list of trigger levels.

ServiceReport
DisturbReport
AnalogTrigStat
2. Scroll the list.

Use the Left and Right arrow buttons to scroll the list of trigger
levels.
Table 2: Disturbance triggering levels
Viewed data (default labels used, data is Description of trigger

example values)
U1> Overvoltage trigger level in voltage input U1
U1< Undervoltage trigger level in voltage input U1
I1> Overcurrent trigger level in voltage input I1
I1< Undercurrent trigger level in voltage input I1
34
View disturbance trigger levels Chapter 6
Viewed data (default labels used, data is Description of trigger

example values)
35
View disturbance sequence number Chapter 6
5 View disturbance sequence number

This procedure describes how to view in consecutive order disturbance sequence num-
ber.
1. View the sequence number.

ServiceReport
DisturbReport
SequenceNo
36
Calculate the distance to fault Chapter 6
6 Calculate the distance to fault

one to be viewed.
2. View the distance to fault calculation menu.
DisturbanceReport
CalcDistToFlt
Disturbancen

3. Select a fault loop.

4. Press the E button to calculate.
The fault loop and distance to fault are displayed.
6.2 How the distance to fault is displayed

The calculated distance to fault is displayed in the following manner either in the dis-
turbance summary or when the distance is manually recalculated:
FltLoop=<Loop>
Dist=<Qualifier1><Qualifier2> <Distance value><Unit>
The first row identifies the fault loop used for calculation.
The second row qualifies the calculated data and shows the distance using the selected
unit, percent (%), kilometers (km) or english miles (mi).
Table 3: Qualifier1
Symbol Meaning
Blank (no symbol) The calculated distance was within the set line length.
> The fault was detected in adjacent lines.
37
Calculate the distance to fault Chapter 6
Table 4: Qualifier2
Symbol Meaning
Blank (no symbol) The calculated distance value has high accuracy.
* The distance has low accuracy.
E The distance is inaccurate. There was not enough data to perform the
calculation.
38
Manually trigger the disturbance report Chapter 6
7 Manually trigger the disturbance report

This procedure describes how to manually trigger the disturbance recording.
1. Display the manual trigger dialog.

DisturbReport
ManualTrig
2. Confirm the manual trigger.

Select Yes by using the Left and/or Right arrow buttons, of not al-
ready highlighted. Press the E button to assert the manual trigger.
Select No and press the E button to avoid asserting a manual trig-

ger.
39
View the used disturbance memory size Chapter 6
8 View the used disturbance memory size

This procedure describes how to read the used disturbance memory size.
1. View the size.

ServiceReport
DisturbReport
MemoryUsed
40
Reset the LED alarms Chapter 6
9 Reset the LED alarms

This procedure describes how to reset LEDs after evaluating the reasons of an alarm
in order to prepare for new alarms.
1. Make sure the basic terminal dialog is displayed.

You may need to press the C button repeatedly to return to the ba-
sic terminal dialog from the displayed menu branch or leaf.
2. Press the C button to reset LED alarms.

All LEDs are reset.
41
Test the LEDs of the LED module Chapter 6
10 Test the LEDs of the LED module

This procedure describes how to test the LEDs of the LED module.
1. Display the Test menu

Test
Mode
HMI LED
2. Press the OK button to enter test selection

3. Select test mode
Use the Up or Down arrow button to select Yes to prepare for the
test to start.
4. Confirm test mode

Press the E button to confirm the selection.
5. Save test mode changes and start test

The Save test mode dialog is displayed. Save the change by select-
ing Yes and press the E button again. The LED test is started.
Stopp the HMI LED test

1. Display the Test menu
Test
Mode
HMI LED
2. Press the OK button to enter test selection

3. Select test mode
Use the Up or Down arrow button to select No to prepare for the
test to stop.
42
4. Confirm test mode

Press the E button to confirm the selection.
5. Save test mode changes and stop test

The Save test mode dialog is displayed. Save the change by select-
ing Yes and press the E button again. The LED test is stopped.
43
44
View the protection system status
Chapter 7 View the protection

system status
About this chapter

need arises.
45
View the service values Chapter 7
1 View the service values

This procedure describes how to navigate the menus to view line voltage, phase current,
neg. seq. current, active power, reactive power and frequency. Such values are called
service values.
1. Display the Service values menu.

ServiceReport
ServiceValues
2. Scroll the available service values to read mean values.

1.2 Available HMI service values

Each service value may be displayed using custom labels.
Table 5: Available service values
Viewed data (default labels used, Service value

data is example values)
U= Mean RMS voltage of voltage input channels 1-3
0.000 kV
I= Mean RMS current of current input channels 1-3
0.000 A
P= Mean active power of voltage and current channels

1-3
0.000 MW
Q= Mean reactive power of voltage and current chan-

nels 1-3
0.000 MVAr
f= Mean frequency of voltage input channels 1-3
50.00 Hz
INegSeq = Mean RMS negative sequence current of current

input channels 1-3
0.000 A
46
View the primary and secondary phasors Chapter 7
2 View the primary and secondary phasors

This procedure describes how to navigate the menus to view primary and secondary
measured analog values. Such values are called phasors.
View the primary phasors

1. Display the primary phasors menu.
ServRep
Phasors
Primary
2. Scroll through the available values to read phasors.

View the secondary phasors

1. Display the secondary phasors menu.
ServRep
Phasors
Secondary
2. Scroll the available values to read phasors.

2.2 Available primary and secondary phasors

Primary and secondary phasors are available for all voltage and current input channels,
as well as the primary phasors for phase-to-phase voltages between voltage channels 1
and 2, 2 and 3 or 3 and 1.
Each phasor may be displayed using custom labels. Consult the station documentation
to find the configured labels.
47
View the primary and secondary phasors Chapter 7
Table 6: Example of primary phasor (explanation of viewed data)
Viewed data (default labels are used, Phasor

data is example values)
U1 = Measured analogue quantity (phasor)
0.000 kV Magnitude of a measured phasor
0.0 deg Phase angle of a measured phasor
Phasor U2 and U3 utilize phasor U1 as refer-

ence
48
View the function block variables and Chapter 7
output signals View the protection system status
3 View the function block variables and output

signals

This procedure describes how to navigate the menus to view function output signals.
View the status of function block binary outputs:

1. Identify the function block to view.
Use table of the following section to find the function block to
view.
2. Display the list of outputs.

Service Report
Functions
<name of function block>
FuncOutputs
3. Scroll the output values.

View the values of function block variables:

1. Identify the function block and variable to view.
Use table of the following section to find the function block and
variable to view.
2. Display the list of outputs.

Service Report
Functions
<name of function block>
<function block variable>
3. Scroll the output values.

49
3.2 Contents of the Functions menu related to function outputs

Please note that the Functions menu contains more than what is described here. Other
functions such as clearing of counters and calculated function data are also part of the
service report, but described separately.
Table 7: Functions that may be viewed directly (in order of occurrence)
Designation Function Description
HMI LED HLED LED indication function
InstantOC IOC Instantaneous ocercurrent protection
TimeDelayOC TOC Time delayed overcurrent protection
CapUnbalance TOCC Unbalance protection for capacitor banks
InvTimeDelayOC TOC2 Two step time delayed phase overcurrent protection
DirInvTDelayOC TOC3 Two step time delayed residual overcurrent protection
OverLoad OVLD Overload supervision
ThermOverLoad THOL Thermal phase overload
Stub STUB Stub protection
PoleDiscord PD Pole discordance
BreakerFailure BFP Breake failure protection
TimeDelayUV TUV Time delayed under voltage protection
TimeDelayOV TOV Time delayed over voltage protection
IntCircBridge TOVI Inter circuit bridging
LossOfVoltage LOV Loss of voltage check
DeadLineDet DLD Dead line detection
BrokenConduct BRC Broken conductor check
CTSupervision CTSU Current circuit supervision
FuseFailure FUSE Fuse failure
Trip TR Trip logic
CommunicCHL CCHL Communication channel logic
RadialFeederP PAP Radial feeder protection
VoltageTransfS TCT Voltage transformer supervision
ComChanTest CCHT Communication channel test logic
FaultLocator FLOC Fault locator
50
ActiveGroup GRP Activation of setting groups
IEC103Command ICOM Serial communication
DisturbReport DREP Disturbance report
InternSignals INT Internal events
Test TEST Test mode
Time TIME Time synchronisation
Table 8: The Impedance group (Group designation: Impedance)
GenFltCriteria GFC General fault criteria
PhaseSelection PSL Phase selection logic
HighSpeed HS High speed protection
HighSpeedBO HSBO High speed binary output
Zone1 ZM1 Distance protection zone 1
ComLocal ZCLC Local acceleration logic
ZCommunication ZCOM Scheme communication logic
Com1P ZC1P Phase segregated scheme communication logic
ComIRevWEI ZCAL Current reversal and weak end infeed logic
PowerSwingDet PSD Power swing detection
PowerSwingLog PSL Additional logic for power swing detection
PoleSlipProt PSP Pole slip protection
SwitchOntoFlt SOTF Automatic switch onto fault
51
Table 9: The Earth Fault group (Group designation: Earth Fault)
TimeDelayEF TEF Time delayed earth fault protection
4stepEF EF4 4 step earth fault protection
WattmetrEF1 WEF1 Sensetive residual overcurrent protection
WattmetrEF2 WEF2 Sensetive residual overcurrent protection
EFCom EFC Scheme communication logic
ComIRevWei EFCA Current reversal and weak end infeed logic
Table 10: System control and protection group (Group designation: System Pro-
tec)
SuddenChangeC SCC1 Sudden change in phase current
SuddenChangeRC SCRC Sudden change in residual current
SuddenChangeV SCV Sudden change in voltage
OverCurrentP OCP Phase overcurrent protection
UnderCurrentP UCP Phase undercurrent protection
ResidOverCP ROCP Residual overcurrent protection
OverVoltageP OVP Over voltage protection
LowActivePP LAPP Low active power protection
LowActiveRP LARP Low active and reactive protection
HighActivePP HAPP High active power protection
HighActiveRP HARP High active and reactive power protection
Table 11: The Autorecloser group (Group designation: Auto Recloser)
AutoRecloser 1 AR01 AutoRecloser
AutoRecloser 2 AR02
AutoRecloser 3 AR03
52
AutoRecloser 4 AR04
AutoRecloser 5 AR05
AutoRecloser 6 AR06
Table 12: The Syncrocheck group (Group designation: SynchroCheck)
SynchroCheck1 SYN1 SynchroCheck
SynchroCheck2 SYN2
SynchroCheck3 SYN3
SynchroCheck4 SYN4
Table 13: The DC monitor group (Group designation: DC monitor)
MI11-Error Error signal for input module 1 if present
Table 14: The Command function group (Group designation: Command function)
CD01 Single command function (16 signals)
CD02
CD03
CD04
CD05
CD06
53
CD07
CD08
CD09
CD10
CD11
Table 15: Basic logic group (Group designation: Basic logic)
AND1A Annn AND gates part 1
AND1B Annn AND gates part 2
OR1A Onnn OR gates part 1
OR2A Onnn OR gates part 2
XOR1 XOnn Exclusive OR gates
INV IVnn Inverters
SR SRnn Set-reset flip-flops
Timer TMnn Timers
TimerLong TLnn Timers, long delay
Pulse TPnn Pulse generators, part 1
Pulse2 TPnn Pulse generators, part 2
PulseLong1 TQnn Pulse generators, long pulse, part 1
PulseLong2 TQnn Pulse generators, long pulse, part 2
ContrGates1 GTnn Controllable gates
TimerSet1 TSnn Settable timers
SRWithMem1 SMnn Set-reset flip-flops with memory
54
Read the measured and calculated Chapter 7
function values View the protection system status
4 Read the measured and calculated function values
4.1 View the calculated impedances

This procedure describes how to read calculated impedance data.
1. View the available impedance data.

ServiceReport
Functions
Impedance
General
ImpValues
2. Scroll the list to view each impedance value.

4.2 Calculated impedance values

Table 16: Calculated impedance values
Viewed data (default labels used, data is Impedance value

example values)
XL1= Positive sequence reactance measured in

phase L1 (L2, L3).
144 Ohm/phase
RL1= Positive sequence resistance measured in

phase L1 (L2, L3).
193 Ohm/phase
XL2= Positive sequence resistance measured in

phase L1 (L2, L3).
142 Ohm/phase

phase L1 (L2, L3).
192 Ohm/phase
XL3= Positive sequence resistance measured in

phase L1 (L2, L3).
143 Ohm/phase

phase L1 (L2, L3).
194 Ohm/phase
55
4.3 View the calculated direction

This procedure describes how to read calculated direction.
1. View the available direction.

ServiceReport
Functions
Impedance
General
ImpDirection
2. Scroll the list to view direction for each phase.

4.4 Calculated direction

Table 17: Calculated direction
Viewed data (default labels used, data is Direction value

example values)
L1= Displays the direction of measured impedance

in each respective phase loop. Values may be
None
forward for forward direction, reverse for
L2= reverse direction and none, when it is not possi-
Reverse ble to define the correct direction.
L3=L1
Forward
4.5 View the calculated differential values

This procedure describes how to read calculated differential data.
1. View the list of available differential data.

56
ServiceReport
Functions
Differential
DiffValues
2. Scroll the list to view each value.

4.6 Calculated differential values

Table 18: Calculated differential values
Viewed data (default labels used, data is Differential value

example values)
IDiffL1= Measured actual value of differential current in

phase L1
0.003 A
IBiasL1= The highest value of Bias currents in phase L1

or 1/2 of Bias current in L2 or 1/2 of Bias current
0.734 A
in L3
max [(IbiasL1 or 0,5xIbiasL2 or 0,5IbiasL3)]

phase L2
0.004 A

0.733 A
in L3

phase L3
0.002 A

0.735 A
in L1
4.7 View the differential communication values

This procedure describes how to read differential communication values.
57
1. View the list of available communication data.

ServiceReport
Functions
Differential
DiffCom

4.8 Differential communication values

Table 19: Differential communication values
Viewed data (default labels used, data is Communication values

example values)
TransmDelay= One half of measured loop time delay in

transmission of communication telegram
0.345 ms
NoOfShlnterr= Recorded number of short interruptions in

communication to the remote terminal (20 -
199
50)ms
NoOfMedlnterr= Recorded number of medium interruptions in

communication to the remote terminal (50 -
12
200)ms
NoOfLonglnterr= Recorded number of long interruptions in

communication to the remote terminal
2
>200ms
CommStatus= Status of communication link
OK
NoOfTXD= Percentage of theoretically possible transmit-

ted telegrams
37 %
NoOfRXD= Percentage of received transmitted telegrams
41 %
SyncError= Synchronization error between two terminals
5 us
58
4.9 View the thermal overload temperatures

This procedure describes how to read thermal overload temperatures.
1. View the list of available temperatures.

ServiceReport
Functions
ThermOverLoad
Temperature

4.10 Thermal overload temperatures

Table 20: Thermal overload temperatures THOL (THOL-)
Viewed data (default labels used, data is Temperature

example values)
T Line Actual line temperature
T Amb Ambient temperature
4.11 View the automatic recloser counters

This procedure describes how to read automatic recloser counters.
1. View the available counter data.

ServiceReport
Functions
Autorecloser
AutoReclosern
Counters
where n is the instance to be viewed, numbers 1-6.
59
2. Scroll the list to view each counter value.

4.12 Autorecloser counter values

Table 21: Autorecloser counter values AR (AR---)
Viewed data (default labels used, data is Counter value

example values)
1ph-Shot1= Recorded number of first single pole reclosing

attempts
12
3ph-Shot1= Recorded number of first three-pole reclosing

attempts
331
3ph-Shot2= Recorded number of second three-pole

reclosing attempts
124
3ph-Shot3= Recorded number of third three-pole reclos-

ing attempts
55
3ph-Shot4= Recorded number of fourth three-pole reclos-

ing attempts
12
NoOfReclosings= Recorded number of all reclosing attempts
534
4.13 View the synchrocheck values

This procedure describes how to read synchrocheck values.
1. View the available synchrocheck values.

ServiceReport
Functions
SynchroCheck
SynchroCheckn
SyncValues
60

4.14 Synchrocheck values

Table 22: Synchrocheck values
Viewed data (default labels used, data is Synchrocheck data

example values)
UDiff= Measured voltage difference between mea-

sured and reference voltage
0.3455 %ofU1b
FreqDiff= Measured frequency difference between

measured and reference voltage
0.0231 Hz
PhaseDiff= Measured phase difference between mea-

sured and reference voltage
0.0215 deg
4.15 View the event counter values

This procedure describes how to read pulse counter values.
1. View the available counter data.

ServiceReport
Functions
Counters
Count
Counters
2. Scroll the list to view each counter value.

61
4.16 Event counter values

Table 23: Event counter values
Viewed data (default labels used, data is Counter value

example values)
Counter1= Recorded number of pulses by counter no.1
23
456
12
7456
62
View the I/O function block signals Chapter 7
5 View the I/O function block signals
5.1 View the I/O module signals

This procedure describes how to navigate the menus to view binary I/O signals.
1. Identify the slot and module to view.

Use table of the following section to find the slot and module to
view.
2. Display the list of signals.

ServiceReport
I/O
<Slot and module name>
FuncOutputs
3. Scroll the list to view each individual signal.

5.2 I/O modules

I/O modules are always addressed by references to the slot in which the module resides,
the module type and its order number, that is, which one of several modules of the same
kind is to be addressed. The name are constructed in the following way:
Slot<Slot number>-<Module type><Designation number>
For the first binary input module mounted in slot 14 the name will be:
Slot14-BIM1
Consequently, for the second BIM module mounted in slot 16 the name will be:
Slot16-BIM2
63
Table 24: Module shorthands
Module Module shorthand
Binary input module BIM
Binary output module BOM
Binary I/O module IOM
Milliampere module MIM
5.3 View the remote terminal communication data

This procedure describes how to navigate the menus to view remote terminal commu-
nication signals.
1. Display the list of signals.

To view signals of function block RTC1, navigate the menus to:
ServiceReport
I/O
RemTermCom1
FuncOutputs
To view signals of function block RTC2, navigate the menus to:
ServiceReport
I/O
RemTermCom2
FuncOutputs
2. Scroll between the signals.

Use the Left and/or Right arrow buttons to scroll between signals.
5.4 Available signals

Table 25: Output signals for the binary signal transfer to remote end function
64
(RTCnn)
Signal Description
REC01-REC16 Binary signals received from remote terminal, outputs 01-16
COMFAIL Communication failure
65
Determine the active setting group Chapter 7
6 Determine the active setting group

This procedure describes how to determine the active setting group.
1. Determine the active group.

ServiceReport
ActiveGroup
66
Clear the autorecloser counters Chapter 7
7 Clear the autorecloser counters

This procedure describes how to clear the automatic reclosing counters.
1. Display the clear counters dialog.

ServiceReport
Functions
AutoRecloser
AutoReclosern
Counters
ClearCounters
2. Confirm clearing the counters.

ready highlighted. Press the E button to confirm. Counters are
cleared.
Select No and press the E button to leave the counters at their

present value.
67
Clear the differential communication Chapter 7
counters View the protection system status
8 Clear the differential communication counters

This procedure describes how to clear the differential communication counters.

ServiceReport
Functions
Differential
DiffCom
ClearCounters

cleared.

present value.
68
Clear the event counters Chapter 7
9 Clear the event counters

This procedure describes how to clear the event counters.

ServiceReport
Functions
Counters
Count
ClearCounters

cleared.

present value.
69
Clear the event counters Chapter 7
70
View the terminal unit status
Chapter 8 View the terminal

unit status
About this chapter

need arises.
71
Find the reason of an internal failure Chapter 8
1 Find the reason of an internal failure

This procedure describes how to navigate the menus in order to find the reason of an
internal failure when indicated by the flashing green LED of the HMI module.
1. Display the self supervision menu.

TerminalReport
SelfSuperv
2. Scroll the supervision values to identify the reason of the fail-

ure.
1.2 Self supervision HMI data

Table 26: Output signals for the self supervision function
Indicated result Reason Action
InternFail = OK No problem detected. None.
InternFail = Fail A failure has occured. Check the rest of the indicated results to
find the fault.
InternWarning = OK No problem detected. None.
InternWarning = A warning has been Check the rest of the indicated results to
Warning issued. find the fault.
MPM-modFail = OK No problem detected. None.
MPM-modFail = Fail The main processing Contact your ABB representative for ser-
module has failed. vice.
MPM-modWarning = No problem detected. None.

OK
72
Find the reason of an internal failure Chapter 8
Indicated result Reason Action
MPM-modWarning = There is a problem Set the clock.

Warning with:
If the problem persists, contact your ABB
the real time representative for service.
clock.
the time synchro-
nization.
ADC-module = OK No problem detected. None.
ADC-module = Fail The A/D conversion Contact your ABB representative for ser-
module has failed. vice.
Slot04BIM1 = Fail I/O module communi- Check that the I/O module has been config-
cation has failed. ured and connected to the IOP1- block.
(Example data, se fol-
lowing section for If the problem persists, contact your ABB
details) representative for service.
RealTimeClock = OK No problem detected. None.
RealTimeClock = The real time clock has Set the clock.

Warning been reset.
TimeSync = OK No problem detected. None.
TimeSync = Warning No time synchroniza- Check the synchronization source for prob-
tion. lems.
If the problem persists, contact your ABB

representative for service.
73
Identify the terminal Chapter 8
2 Identify the terminal
2.1.1 Retrieve the terminals serial number

1. View the serial number from the terminal report.
TerminalReport
IdentityNo
2.1.2 Retrieve the terminals identity

1. View the identifiers from the configuration menu.
Configuration
Identifiers
2. Scroll the available identifiers.

2.2 Available identifiers

Table 27: Set parameters for the general terminal parameters function
Parameter Range Default Unit Description
Station Name - Station -

Name
Station No 0-99999 0 -
Object Name - Object -

Name
Object No 0-99999 0 -
Unit Name - Unit Name -
Unit No 0-99999 0 -
74
Read the terminal time Chapter 8
3 Read the terminal time

This procedure describes how to read the terminal time.
1. View the date and time.

ServiceReport
Time
75
Retrieve the version of installed firmware Chapter 8
4 Retrieve the version of installed firmware

1. View the firmware version from the terminal report.
TerminalReport
IdentityNo
76
Determine the installed modules Chapter 8
5 Determine the installed modules

This procedure describes how to determine which modules are installed.
1. View the list of modules.

TerminalReport
Modules
2. Scroll the list of installed modules to view what is installed in

each slot.
Use the Left and/or Right arrow buttons to scroll the list.
5.2 I/O modules

I/O modules are always addressed by references to the slot in which the module resides,
the module type and its order number, that is, which one of several modules of the same
kind is to be addressed. The name are constructed in the following way:
Slot<Slot number>-<Module type><Designation number>=<Article number>
For the first binary input module mounted in slot 14 the name will be:
Slot14-BIM1=1MRK000508-xx
Consequently, for the second BIM module mounted in slot 16 the name will be:
Slot16-BIM2=1MRK000508-xx
Table 28: Module shorthands
Module Module shorthand
Binary input module BIM
Binary output module BOM
Binary I/O module IOM
Milliampere module MIM
77
Retrieve the nominal and rated values of Chapter 8
analog inputs View the terminal unit status
6 Retrieve the nominal and rated values of analog

inputs

This procedure describes how to determine the nominal and rated values of analog in-
puts.
1. View the list of available analog input values.

TerminalReport
AnalogInputs
2. Scroll the list to view values.

Table 29: Nominal and rated input values
Viewed data (default labels used, data is Value

example values)
Ur= Rated AC voltage of a terminal
110.000 V
Ir= Rated AC current of a terminal
5.0000 A
U1r= Rated phase voltage of a channel U1
63.509 V
63.509 V
63.509 V
63.509 V
63.509 V
78
Viewed data (default labels used, data is Value

example values)
I1r= Rated phase current of a channel I1
5.0000 A
5.0000 A
5.0000 A
5.0000 A
5.0000 A
79
80

REL551 Operators Manual

Uploaded by

Copyright:

Available Formats

REL551 Operators Manual

Uploaded by

Document Information

Copyright

Available Formats

Share this document

Share or Embed Document

Sharing Options

Did you find this document useful?

Is this content inappropriate?

Copyright:

Available Formats

REL551 Operators Manual

Uploaded by

Copyright:

Available Formats

Operators manual

About this manual:

ABB Automation Products AB 2001

Chapter 1 Introduction ..................................................................... 1

Introduction to the operators manual .................................................. 2

Chapter 2 Safety information........................................................... 5

Chapter 3 Overview .......................................................................... 7

Operator overview ............................................................................... 8

Chapter 4 Understand the human-machine interface ................... 9

Human Machine Interface Overview.................................................. 10

Chapter 5 Understand the HMI tree............................................... 15

Chapter 6 Handle the disturbances............................................... 29

Chapter 7 View the protection system status .............................. 45

View the service values ..................................................................... 46

Navigate the menus...................................................................... 47

Chapter 8 View the terminal unit status ...................................... 71

Find the reason of an internal failure ................................................. 72

Retrieve the nominal and rated values of analog inputs .................... 78

About this chapter

1 Introduction to the operators manual

1.1 About this manual

The operators manual contains the following important chapters:

1.2 Intended audience

Documents related to REL 551*2.3 Identity number

Operators manual 1MRK 506 076-UEN

Installation and commissioning manual 1MRK 506 078-UEN

Documents related to REL 551*2.3 Identity number

Technical reference manual 1MRK 506 077-UEN

Application manual 1MRK 506 112-UEN

Technical overview brochure 1MRK 506 075-BEN

2.3-00 First revision

Chapter 2 Safety information

About this chapter

About this chapter

Chapter 4 Understand the

About this chapter

1 Human Machine Interface Overview

the human-machine interface (HMI) module.

Ready Start Trip

1. Status indication LEDs

3. Cancel and Enter buttons

Figure 2: The HMI module

The C button has three main functions:

Cancel any operation in a dialogue window.

The left and right arrow buttons have three functions:

The up and down arrow buttons have three functions:

2 Descriptive label, user exchangeable

Figure 3: The LED module

2 HMI module LED indications

green yellow red

Liquid Crystal Display

Figure 4: The LED indication module

Table 1: LED indications

Off (no LED is lit) No power or defect terminal.

Steady green LED The terminal is ready for operation.

Flashing green LED Internal failure, startup is in progress

Flashing yellow LED Terminal in test mode.

Steady yellow LED Disturbance report trigged.

Steady red LED A binary signal, normally a TRIP command, has

Flashing red LED Terminal blocked or in configuration mode.