40-08591-01 TWS FL-8 User Manual PDF

User Manual
TWS FL8
Fault Location Unit
Document ID: 40-08591-01
www.qualitrolcorp.com
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constitute an endorsement by QUALITROL of that product or brand.
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2010 QUALITROL Company LLC, an ISO 9001 system certified company. All rights reserved. Information subject to change without notice.
All trademarks are properties of their respective companies, as noted herein. 40-08557-01.
www.qualitrolcorp.com
Contents
Contents
1. About This Manual ............................................................................... 2

1.1. Symbols Used................................................................................................2
1.2. Abbreviations and Acronyms.......................................................................3
2. Overview of TWS FL8 .......................................................................... 5
2.1. Introduction....................................................................................................5
2.2. Standard Equipment .....................................................................................5
2.3. Typical Scheme .............................................................................................6
2.4. TWS FL8 License...........................................................................................7
2.5. Safety Summary ............................................................................................7
2.6. Customer Helpline Information ....................................................................8
3. Components and Specifications....................................................... 10
3.1. Environmental Requirements.....................................................................10
3.2. Power Supply and Earthing ........................................................................10
3.2.1. Standard Power Supply................................................................................... 10
3.2.2. UPS ................................................................................................................ 11
3.2.3. +12 VDC External Power Supply .................................................................... 13
3.3. Physical Details ...........................................................................................14
3.4. Front Panel Description ..............................................................................14
3.5. Rear Panel Description ...............................................................................15
3.6. Standard MMI ............................................................................................... 19
3.6.1. MMI CPU Mode .............................................................................................. 19
3.6.2. MMI LCD Navigation ....................................................................................... 19
3.6.3. MMI Overview Screen..................................................................................... 22
3.6.4. CPU Overview Screen .................................................................................... 23
3.6.5. CPU Main Menu Screen.................................................................................. 23
3.6.6. LED Functions ................................................................................................ 29
3.7. Shutdown and Reset ...................................................................................32
3.7.1. Shutdown Switch............................................................................................. 32
Contents i www.qualitrolcorp.com
Contents
3.7.2. Reset Switch ................................................................................................... 32

3.8. Communication Ports .................................................................................33
3.8.1. PPH/PPM/IRIG-B In/IRIG-B Out...................................................................... 33
3.8.2. Fiber/Differential PPS...................................................................................... 33
3.8.3. Ethernet Connections...................................................................................... 33
3.8.4. Serial Ports ..................................................................................................... 35
3.9. USB...............................................................................................................38
3.9.1. USB Functionality............................................................................................ 38
3.9.2. USB Functions With or Without Script and MMI-LCD ...................................... 38
3.9.3. LED Indication................................................................................................. 39
3.10. Clock Synchronization................................................................................40
3.10.1. TWS FL8 as Master ....................................................................................... 40
3.10.2. TWS FL8 as Slave ......................................................................................... 41
3.10.3. TWS FL8 Time Accuracy................................................................................ 42
3.10.4. PPS Detection, Stability and Lock Mechanism ............................................... 42
3.11. Input Connections .......................................................................................44
3.11.1. Analog Inputs ................................................................................................. 44
3.11.2. Digital Inputs .................................................................................................. 45
3.12. Alarm Output................................................................................................ 45
4. Installation.......................................................................................... 49
4.1. Unpacking Procedure .................................................................................49
4.2. Accessories .................................................................................................49
4.3. TWS FL8 Installation Specifications ..........................................................50
4.4. Device Communication Settings................................................................ 52
4.5. Installation Procedure.................................................................................52
4.5.1. Setting up the Device ...................................................................................... 52
4.5.2. Starting the Device.......................................................................................... 52
4.5.3. Checking for Correct Operation....................................................................... 53
4.5.4. Connecting the Inductive Couplers (Transducers)........................................... 53
4.5.5. Inductive Coupler Polarity ............................................................................... 56
4.5.6. Optional Mounting Board for CTs .................................................................... 57
4.5.7. The GPS Antenna ........................................................................................... 58
5. Serial Connection to TWS FL8 .......................................................... 61
Contents ii www.qualitrolcorp.com
Contents
5.1. Functionality/Service ..................................................................................61

5.1.1. PPPD on Serial ............................................................................................... 61
6. Configuration ..................................................................................... 84
6.1. TWS FL8 Web Page .....................................................................................84
6.1.1. Home Page of FL8 Device ............................................................................. 84
6.1.2. FL8 Configuration Web Page .......................................................................... 86
6.1.3. Fault Location Tab of the FL8 Configuration Web Page .................................. 87
6.1.4. System Tab of the FL8 Configuration Web Page ............................................ 89
6.1.5. Time Tab of the FL8 Configuration Web Page ................................................ 93
6.1.6. Serial Tab of the FL8 Configuration Web Page ............................................... 95
6.1.7. View FL8 Records Page.................................................................................. 95
6.1.8. Change Password Page................................................................................ 102
6.2. Software Configuration from iQ+ .............................................................103
6.2.1. Configuration Overview................................................................................. 107
6.2.2. Communications ........................................................................................... 112
7. Maintenance ..................................................................................... 116
7.1. Calibration..................................................................................................116
7.1.1. Calibration Procedure ................................................................................... 116
7.2. General Maintenance ................................................................................123
7.2.1. Storage ......................................................................................................... 123
7.2.2. Transport ...................................................................................................... 123
7.2.3. Routine Maintenance .................................................................................... 123
7.2.4. UPS Maintenance ......................................................................................... 124
7.3. Firmware Upgrade .....................................................................................124
7.3.1. TWS FL8 Firmware Upgrade Procedure ....................................................... 124
7.3.2. During File Upload to TWS FL8..................................................................... 129
7.3.3. During CPU File Upload to TWS FL8 ............................................................ 130
7.3.4. System and Diagnostic Information............................................................... 131
7.4. Troubleshooting ........................................................................................134
7.4.1. Power Healthy LED on the Front Panel is Off................................................ 136
7.4.2. Communication LED is Off ............................................................................ 137
7.4.3. Clock Sync LED is Off ................................................................................... 138
7.4.4. Test Points to Verify the Supply Voltages...................................................... 138
Contents iii www.qualitrolcorp.com

Contents
Appendix A Technical Specifications................................................... 141

EMC Standards.....................................................................................................144
Appendix B TWS FL8 Functions ........................................................... 148
FL Manual Trigger ................................................................................................ 148
FL External Trigger .............................................................................................. 148
FL Diagnostic Trigger ..........................................................................................149
FL Digital Inputs ...................................................................................................149
Handling Time Changes ......................................................................................150
Forward Time Shift ..................................................................................................... 150
Backward Time Shift................................................................................................... 150
Appendix C Recording Data Rates and Memory Consumption Rates153
Appendix D License Information .......................................................... 155
Modifying an Existing License ............................................................................156
Appendix E Battery Replacement Procedure....................................... 160
Battery Replacement Procedure for a TWS FL8 Device ...................................160
Appendix F On-Board LED Functionalities and CPU MMI Modes ...... 163
LED Functions on the Motherboard ...................................................................163
CPU MMI Modes ...................................................................................................163
Appendix G On-Board Jumper Settings............................................... 166
Appendix H Line Modules ..................................................................... 170
References................................................................................................. 174
Contents iv www.qualitrolcorp.com
About This Manual
Chapter 1
About This Manual
1 www.qualitrolcorp.com
About This Manual
1. About This Manual

The manual assumes that the user has minimum operational knowledge of this type of monitoring
equipment. This manual provides instructions to help the user to:
Install the device and connect its accessories.
Configure the device.
Operate the device.
Maintain and troubleshoot the device.
1.1. Symbols Used

The following table lists the symbols used on the device and in the manual.
Symbol Description
A Warning identifies conditions and actions that pose hazard(s) to the user.
Risk of electrical shock
Potentially dangerous situation
A Caution identifies conditions and actions that may damage the test instrument.
Risk of danger
~ Alternating Current
Direct Current
Protective Earth
USB Communication
GPS Antenna
About This Manual
1.2. Abbreviations and Acronyms

The following table lists the various abbreviations and acronyms used in this manual.
TWS FL8 Data Acquisition Unit Name
AC Alternating Current
AWG American Wire Gauge
BCD Binary Coded Decimal
CF Control Function
CPU/Motherboard Processor Card
CTS Clear To Send
DC Direct Current
DCE Data Communication Equipment
DFE Digital Front End
DTE Data Terminal Equipment
EMC Electro Magnetic Compatibility
FPGA Field Programmable Gate Array
GPS Global Positioning System
iQ+ Master Station Software
LCD Liquid Crystal Display
LED Light Emitting Diode
MMI Man Machine Interface
NA Not Applicable
NTP Network Time Protocol
PPPD Point-to-Point Protocol Daemon
PPS Pulse Per Second
RH Relative Humidity
RI Ring Indicator
RoHS Restriction of Hazardous Substances
RTC Real Time Clock
RTS Request To Send
SPST Single-Pole Single Throw
TOD Time Of the Day
UPS Uninterrupted Power Supply
WEEE Waste Electrical and Electronic Equipment
Overview
Chapter 2
Overview
Overview
2. Overview of TWS FL8

This document is split into the following three main sections:
Introduction
Installation
TWS FL8 Commissioning and Testing
The Introduction section provides a brief overview of TWS FL8 followed by a description of the
TWS FL8 hardware characteristics. The Installation section describes the steps taken to physically
install a TWS FL8. The TWS FL8 Commissioning and Testing section involves configuring the
TWS FL8 software and finally testing the fully installed unit.
2.1. Introduction
TWS FL8 is designed to accurately locate faults on high voltage, overhead line feeders that may
include lengths of cable. It can give useful results on more complicated networks including some
branches. The preferred location is a substation where more than one feeder is connected to the
busbar. TWS FL8 depends on the measurement of current transients on the secondary side of the
main protection current transformer. This method can only be applied at points on the system
where current transformers are available.
At substations where only one feeder connects to a transformer, it will be necessary to measure
voltage transients from a suitable voltage transducer. Contact QUALITROL for further details on
measuring voltage transients.
TWS FL8 is used to monitor eight line modules. It can monitor 2, 4, 6, or 8 line modules
depending on the number of fault location (FL) cards mounted. A single FL card has capability to
monitor two line modules. Refer to Appendix H for more details on mounting FL cards.
2.2. Standard Equipment

As shown in Figure 2.1a and 2.1b, a standard TWS FL8 comes equipped with: -
One TWS FL8 chassis with: -
internal power supply, solid state flash drive, CPU Card, GPS module, modem and line
modules (maximum of 8). There are also external connections for RJ45 Ethernet, four alarm
outputs, IRIG B time synchronisation output and a serial port.
GPS antenna with a 10 meter leads (extension cables are available, see section 4.5.7)
Split core inductive couplers and associated nylon washers, nuts and screws (3 inductive
couplers for each line module)
Lightning surge protection device
Telephone connection cable
Linux operating system and the latest TWS FL8 firmware
Overview
Figure 2.1a TWS FL8 Chassis
Figure 2.1b TWS FL8 Firmware
2.3. Typical Scheme

Figure 2.2 is a typical scheme of two TWS FL8s installed at either end of an overhead line. Each
TWS FL8 monitors the current transients on phase A, B, and C of the overhead line feeders. The
main computer is usually situated in the control room and is used to retrieve timestamps of current
transients from both TWS FL8s at either end of the line and calculates distance to fault.
Overview
Figure 2.2 Typical Scheme
2.4. TWS FL8 License

The TWS FL8 device is a licensed product. Consequently, some features of this multifunctional
device may not be available as described in this manual. Additional licenses may be purchased to
activate the required functionalities.
Note Refer to Appendix D for details about any TWS FL8 license updates.
2.5. Safety Summary

Warnings and Cautions are presented throughout the manual to alert the user of potentially
hazardous situations.
Remember the following:
Installation, operation, and maintenance of the equipment must be performed only by

qualified personnel.
Read the User Manual before using the equipment.
Operate the equipment within its stated parameters. The performance of the equipment may
be adversely affected if used in extreme conditions.
Do not use the equipment for any purpose other than the measurement of voltages and
currents that are within the measuring ranges and categories. Improper use shall void all
warranties.
Overview
Install the equipment in such a manner that its power cable is accessible at all times and can
easily be disconnected.
Check that at least 10 cm free space is available on either side of the enclosure and 4.4 cm
space is recommended on the top and bottom of the enclosure for air flow or ventilation.
Ensure that the power cables and connecting cables are not damaged and are in proper
working condition.
Use only those accessories that are supplied with the equipment.
Refer the equipment to the authorized service personnel if any damage or defect is found.
2.6. Customer Helpline Information

For any customer or technical support, contact:
Qualitrol Corporation-Instrumentation Division
15 Wildflower Way, Belfast,
BT12 6TA,
Northern Ireland
Telephone: +44 28 9022 5200
Fax: +44 28 9022 5225
Qualitrol Instruments
8 Av. Newton
B-1300 Wavre
Belgium
Telephone: +32 10 22 67 16
Fax: +32 10 22 69 98
Technical support: +32 10 235 237
Qualitrol Company LLC
1385 Fairport Road,
Fairport, NY 14450
USA
Telephone: +1 585 586 1515
Web site: www.qualitrolcorp.com
Technical Support contact:
From Austria: +43 (0)1 79 576 203
From Belgium: +32 (0)10 235 237
From France: 0825 540 050
From Germany: +49(0)69 50 07 13 46
From Switzerland: +41 (0)44 80 09 931
From UK: +44 28 9022 5200
From other countries: +44 28 9022 5200
Technical support E-mail: csc@qualitrolcorp.com
Components and Specifications
Chapter 3
3. Components and Specifications

This chapter describes the different components of the TWS FL8 device and its specifications.
3.1. Environmental Requirements

The following table lists the environmental requirements for the device.
Parameters Requirements
Operating Temperature -5C to +45C (irrespective of the UPS
module)
Storage Temperature -30C to +70C
Humidity 0 to 95% RH non-condensing
Note:
Conforms to RoHS and WEEE.
Cold start is not possible below 0C.
3.2. Power Supply and Earthing

This section provides the power requirements for the device.
3.2.1. Standard Power Supply

TWS FL8 supports two types of power supply modules. The specifications are as follows:
Power Supply Input Range Type 1: 90 264 VAC (88 - 300 VDC), 47 63
Hz
Type 2: 36 72 VDC
Maximum Load 85-90VA with all 4 FL Cards (8 Line Modules)
Typical Load 80-85VA with all 4 FL Cards (8 Line Modules)
Note Wire gauge to be used at TB1: 1222 AWG.
Figure 3.1 Standard Power Supply Terminal

Connect the power cord to the power socket on the rear panel of the device (through screw
terminal blocks). The labels L and N are for line and neutral of the AC supply (+ and indicate the
polarity of the DC supply).
It is very important to connect an earth to the main earth stud. The earth stud
should be connected to the system substation earth.
An ON/OFF switch is provided on the rear panel to control power to the device.
3.2.2. UPS
The UPS card provides power supply to the TWS FL8 device for a minimum of 15 minutes. In
normal operating conditions, the user can expect battery backup for 30 minutes with a new and
fully charged battery. The battery must be charged initially for 12 hours to provide a minimum
backup of 15 minutes.
Note Refer to Appendix E for details about the battery replacement procedure.
The following table describes the details of the two batteries that are used in the TWS FL8 device.
Details 4S2P5SWB-SB NH2054
Manufacturer Rajamane Telectric INSPIRED ENERGY, Inc.

Private Limited
Part Number/Reference 4S2P5SWB-SB-002 NH2054HD24
Battery Specifications
Rated Capacity (minimum) 3.9 Ah with 0.5 C 4.8 Ah

Charging and 0.5 C
Discharging
Operating Environment
Charging 0C +45C, 0C to 45C, <= 80% RH

Maximum 90% RH
Discharging -20C ~ +60C, -10C to 50C, <= 80% RH

Maximum 90% RH
Storage Environment
Short Period less than 1 -20C ~ +45C, 20C ~ +60C<= 80% RH

month
Maximum 90% RH
Long Period more than 3 10C ~ +30C,

months Maximum 90% RH
Recommended storage +15C ~ +35C, <21C

Maximum 85% RH
Notes If the battery is not The shelf life of the

used for more than 3 battery is 6 months
months, then it has to when stored at 25C.
be discharged
If the storage
completely and
temperature exceeds
recharged to 50%
25C over a 6-month
power.
period, then the shelf
If the batteries are life of the battery is
not used for more reduced.
than 6 months, there
can be a serious
effect on the battery
life.
The Rajamane battery is the default battery. The Qualitrol reference number for this battery
is 3601-0087.
Note Refer to Section 7.2.4 for further information about UPS maintenance.
3.2.3. +12 VDC External Power Supply

TB2 provides an auxiliary DC output for external devices.
Figure 3.2 - External Power Supply

The +12 VDC External Power Supply has the following specifications:
Output voltage: +12 V@750 mA Maximum
Note Wire gauge to be used at TB2: 12-24 AWG.
3.3. Physical Details

The following table provides the mechanical dimensions for the TWS FL8 device.
Devices Physical Dimensions Net Weight (Approx.) Gross Weight (Approx.)

TWS FL8 487 mm wide, 132.5 11 kg without 11 kg without packaging
Device mm high, 362.2 mm packaging material & without
deep battery
13 kg with
packaging 13 kg with packaging
material & with battery &
other accessories if any
3.4. Front Panel Description

This section provides a description of the different components on the front panel of the TWS FL8
device.
The following table lists the labels for the front panel of TWS FL8 device.
Label Name Description
1 LED Indicators Status is configured to indicate different
alarm conditions.
2 LCD Display Used to display information related to the

device.
3 Keypad Used to navigate.
A picture of the front panel of TWS FL8 device is shown in Figure 3.3.
Figure 3.3 TWS FL8 Front View
3.5. Rear Panel Description

This section describes the different components on the rear panel of the TWS FL8 device.
A picture of the rear panel of the TWS FL8 device is shown in Figure 3.4.
Figure 3.4 TWS FL8 Rear View
The rear panel figure is split into three parts for better clarity.
Figure 3.4a AC/DC Power Input Details
Figure 3.4a shows the AC and DC power input details.
Figure 3.4b FL-8 and FL4 Panels
Figure 3.4b shows the LM3, LM4, LM7, LM8, Alarms, modem, and other details.
Figure 3.4c FL-6 and FL-2 Panels
Figure 3.4c shows the LM1, LM2, LM5, LM6, RS485, and other details.
The following table lists the different components on the rear panel of the TWS FL8 device.
Label Name Labels on the Description
Rear Panel
1 AC Power Socket TB1 3 pin AC/DC power input connector
TB2 DC power output connector (+12 V,
2 DC Power Socket
750 mA)
3 Phoenix Connector TB13 Alarm output
TB18-19, TB7,
4 8*4 Pin connector TB8,TB3,TB4,TB FL Digital inputs
14-15
TB20,TB21,TB9,
5 8*10 Pin connector TB10,TB5,TB6,T FL Analog inputs
B16,TB17
Phoenix Connector TB11 Differential PPS Out (Master
6
mode)/In (Slave mode)
7 1*5 Pin Connector TB12 RS485 Communication
BNC Connector -In IRIG-B INPUT (TTL/AM)/PPM
8 IN/PPH IN
BNC Connector -Out IRIG-B OUTPUT (TTL/AM)
9 DB9 Connector RS232 Communication
10 RJ45 Connector Wired Ethernet Communication
11 Fiber Connector Fiber Ethernet Communication
12 BNC Connector GPS antenna
13 Fiber Connector Tx/Rx PPS Out/In
14 On/Off Switch Power ON/OFF the device
15 Earth Post Earthing connection
3.6. Standard MMI

Standard MMI includes the LCD, keypad, and the LEDs.
3.6.1. MMI CPU Mode

In TWS FL8 device, MMI operates in 1 CPU mode with LCD.
Refer to Appendix F for MMI CPU modes.
3.6.2. MMI LCD Navigation

The LCD display format is 240X80 dots. A keypad is provided to navigate between the screens.
The front panel keypad consists of 7 keys.
The up arrow key is used to scroll up in the screen.
The down arrow key is used to scroll down in the screen.
The ENTER key is used to select a screen.
The ESC key is used to navigate to previous screen.
The RESET key is reserved for future use.
Figure 3.5 Standard MMI

MMI communicates with CPU to obtain the status and other information. The Overview screen on
the LCD reflects the status of the device. The user can view detailed information of the device by
using the left or right arrow key.
The following flowchart illustrates the MMI LCD navigation.
Figure 3.6 MMI LCD Navigation Flowchart
3.6.3. MMI Overview Screen

The default screen displayed on the LCD interface is the Overview screen of the device. It shows
the CPU's overview status.
Figure 3.7 MMI Overview Screen for One CPU
The following table lists the icons displayed in the MMI Overview screen and their descriptions.
Icons Description
Power Health icon.
Communication icon.
Clock Synchronization icon.
Indicates that the status is healthy.
Indicates that the status is unhealthy.

Indicates that the clock is locked. Any number next to this
icon represents the number of times the clock has been
locked since the device was switched on (refer to Figure
3.7). If there is no number next to this icon, it means that
the clock has never been locked.
Indicates that the clock is unlocked. Any number next to
this icon represents the number of times the clock has
been unlocked since the device was switched on.
Indicates that the device is running with an internal UPS.
Indicates that the Power Health status is bad.
Icons Description
Indicates that an alarm condition has occurred. Refer to

Section 3.6.6 for details.
3.6.4. CPU Overview Screen

Pressing the left or right arrow key displays the information of CPU. This screen displays the
system (CPU) date and time, time synchronization information, station name, device name, and
network information (IP address of the device, and default gateway). It also displays the
functionality and menus based on the license purchased.
Figure 3.8 CPU Overview Screen
3.6.5. CPU Main Menu Screen

If the enter key is pressed on the CPU Overview screen, the CPU Main Menu screen is displayed.
The user can use the up and down arrow keys to scroll through the options. Pressing Enter on
each option displays its details. The Main menu displays the following options.
Figure 3.9 CPU Main Menu Screen
System information: The SYSTEM INFORMATION menu provides information about the
following:
Figure 3.10 System Information
Firmware Information Displays the CPU and peripherals firmware information.

Memory Information Displays the CPU RAM and file system information.
Diagnostic Report Displays the status of Power Health, FPGA, SD RAM, PIC, and ADC.
Programming Status Displays the various peripheral programming statuses. Always DSP
programming status will be displayed as Not programmed.
Alarms/Logs The ALARMS/LOGS menu provides the options for viewing various logs. The
menu displays the following:
Figure 3.11 Alarms/Logs

Sys.Diag. Log Displays the system diagnostic log.
Reboot History Displays the last five reboot conditions.
Time Sync Status Log Displays the status log for time synchronization.
Event Status Log - Displays information about the FR and PQ trigger events.
FL Log Displayed when a feature or license is available.
Communication The COMMUNICATION menu provides the communication status. It displays

the serial communication and Ethernet communication status. This menu displays the following
options:
Figure 3.12 Communication

RS232-1
RS232-2
RS232-3
RS485
Ethernet-1
Ethernet-2
Data Download The DATA DOWNLOAD menu provides the option for user to download the
data from the device to the USB. The menu displays submenus to download the log and FL
records. USB should be connected to the device in order to download logs and records. The
number of days of data required to be downloaded is specified using the up and down arrow keys.
MMI LCD displays the downloading status.
Figure 3.13 Data Download
Clock Synchronization: The CLOCK SYNCHRONIZATION menu provides the CPU clock
source information. The menu displays the time mode of CPU, source of clock, status of
synchronization, and additional information based on source.
Figure 3.14 Clock Synchronization
Manual Trigger: The MANUAL TRIGGER menu provides options for the user to give a manual
trigger. This menu displays the following options:
Figure 3.15 Manual Trigger
Channel Check: The CHANNEL CHECK menu provides the user with the option to test the
enabled FL channels and to display the status of FL Digital Inputs.
This menu displays the following options:
Figure 3.16 Channel Check

FL Digital Inputs - Displays the channel state of all 16 digital channels.
FL Lines Displays the FL channel status.
Relay Test: The RELAY TEST menu provides the user with the option to test the relay, as shown
in the following figure. The relay is selected using the up and down arrow key.
Figure 3.17 Relay Test
Display Settings: The DISPLAY SETTINGS menu provides the user with the option to change
the LCD and backlight settings, as shown in the following figure.
Figure 3.18 Display Settings
3.6.6. LED Functions

Normal Run Time Mode
There are nine tri-colored (green, red, and amber) LEDs on the TWS FL8 front panel. When the
device is switched on, all nine LEDs keep flashing (anti-clock wise direction) in green for a
maximum of 3 minutes. This indicates that the LCD interface is booting up. If the firmware is
upgrading, then the right side LEDs scroll from top to bottom and the left side LEDs scroll from
bottom to top in green. Once the firmware is upgraded successfully, only the Health LED flashes
in green and the others are in an OFF state. If a communication failure occurs during the upgrade,
all nine LEDs flash in red.
Figure 3.19 LED Indicators
Sl. No. Feature Purpose LED Color LED Status

LED 1 Healthy To check the Green -TWS FL8 is Healthy.
health condition Flashing- TWS FL8 is initializing.
of the device
Red Problem in hardware module
Off No Power or shutdown

LED 2 Comms Communication Green Ethernet/RS232/RS485
communication is in Progress
Red Communication error (Error in any

one of the
Ethernet/RS232/RS485
communication)
Off No communication
LED 3 Clock To check the Green TWS FL8 is locked (The internal
Sync clock clock is synchronized with the
synchronization external clock).
Red TWS FL8 is unlocked.
Off Nil
LED 4 Battery To check whether Green TWS FL8 is running on mains
the device is power and device is fitted with
running on mains UPS card (Battery backup is
power or battery available).
back-up Red TWS FL8 is running on battery
backup.
Off TWS FL8 is running on mains

power and device is not fitted with
UPS card (Battery backup is not
available in the device.)
LED 5 Trigger To check FL Green FL trigger in progress
triggering status.
Red Nil
Off No trigger
LED 6 Alarm User Green Nil
Configurable:
Default events
Red Indicates 90% Memory full or
are 90% Memory
user-configured event.
full or phase error
in any of the
Sl. No. Feature Purpose LED Color LED Status

channels. Off No problem occurred.
Or
User can
configure for any
event.
LED 7 Status 1 User Green On/Flashing User-configured
Configurable event occurred.
User can Red On/Flashing -- /user-configured

configure for any event occurred.
event.
Off User-configured event
LED 8 Status 2 User Green On/Flashing User-configured

Configurable: event occurred.
Default event is
Maintenance Red On/Flashing Maintenance Mode
Mode start started/user-configured event
occurred.
Or Off TWS FL8 is in Normal Mode/No
user-configured event.
User can
configure for any
event.
LED 9 Status 3 User Green Flashing Firmware updating/
configurable: Configuration download/
Default state is Configuration updating/Data
USB download is through USB/user-
communication configured event occurred.
Or On If the USB communication

process is completed/User-
User can configured event occurred.
configure for any Red USB communication error/User-
event. configured event occurred.
Off No USB communication/No user-
configured event.
Channel Check Mode

The user can select the Channel Check mode menu option by using the LCD and the keypad
(refer to Figure 3.16).
In the Channel Check mode, the user can observe the sub menu options as:
Digital Inputs
FL Lines
FL Digital Inputs
Digital Inputs: Not applicable for TWS FL8.
FL Lines: When the submenu FL Lines in the channel check menu is selected and the Enter key
is executed, all enabled FL line modules are tested and line modules status is displayed.
FL Digital Inputs: FL digital Input screen displays the current state of all the FL digital inputs.
3.7. Shutdown and Reset

Pressing the reset or the shutdown switch when the device is running may lead to the loss of data
that is under acquisition. However, the data that is already available in the device is not affected.
3.7.1. Shutdown Switch

The TWS FL8 device can be shut down gracefully by pressing the shutdown switch, SW2, for
more than 3 seconds. After the device shuts down, the Healthy LED (on the front panel of the
device) stops glowing, indicating a successful shutdown. Now, the user can switch off the power
supply to the device.
Switching off the device without a graceful shutdown might corrupt the memory
device.
If the user releases the shutdown switch before 3 seconds, the device enters into the Channel
check mode (for details about the Channel check mode, refer to Section 3.6.6).
The shutdown switch is available on the motherboard or CPU. Refer to section 7.4.4.
3.7.2. Reset Switch

When the device is functioning abnormally, the user can reset the device by pressing the reset
switch, SW1, which is available on the motherboard. When the user presses this switch, the CPU
and all other peripherals restart immediately.
The reset switch is available on the motherboard or CPU. Refer to section 7.4.4.
3.8. Communication Ports
3.8.1. PPH/PPM/IRIG-B In/IRIG-B Out
Figure 3.20 TWS FL8 PPH/PPM
Note A default 75 IRIG-B termination is provided by the TWS FL8 device. If a 120
termination is required, then the user must use an external BNC adapter.
A suitable 75 to 120 Ohm terminator similar to L-Com part number ACC 8060 is required.
3.8.2. Fiber/Differential PPS
Figure 3.21 TWS FL8 Fiber/Differential PPS

The master TWS FL8 sends PPS signals to the slave TWS FL8 by using either a differential PPS
(TB11) or a fiber PPS.
Note Wire Gauge to be used at TB8 (PPS Out/In): 1426 AWG.
3.8.3. Ethernet Connections

TWS FL8 supports two types of Ethernet connections, a 10/100 Base-T that is operated at a
speed of 10/100 Mbit/second, and a 100 Base-FX that is operated at a speed of 100 Mbit/second.
The 10/100 Base-T connection is done through the RJ45 socket and is used for short-range
(to a maximum of 100 meters) communication over standard twisted pair cables. TWS FL8
has two RJ45 Ethernet ports, one each on the front and the rear panel, referred to as
Ethernet port 1 and Ethernet port 2, respectively.
The 100 Base-FX connection is done through two ST fiber connectors and is used for
longer-range (to a maximum of 400 meters) communication over fiber optic cables.
The white connector is used to transmit and the grey connector is used to receive. The
connectors are suitable for 62.5 or 125 micron multi-mode fiber cable. The wavelength used
is 1300 nm. The user can find the ST-fiber connectors on the rear panel of the device.
Figure 3.22 TWS FL8 PPH/PPM

TWS FL8 can be assigned an IP address statically or dynamically (by setting DHCP status as
DHCP Client).
The default IP address used by Ethernet port 1 is 192.168.0.11.
Ethernet port 2 uses a default IP address until the user changes the default IP address
(192.168.1.11) to any other IP address.
In addition, TWS FL8 has the capability to act as a DHCP server (by setting DHCP status as
DHCP Server), in which the user can assign a range of IP addresses that can be allocated to
other devices connected to the network.
For network related configuration, IP address, Subnet Mask, Gateway, DNS IP, and DHCP,
consult the network administrator.
An incorrect network configuration will prevent proper equipment communication
and network access.
Network Services Provided by TWS FL8 through Ethernet

Telnet: Telnet is a network protocol that allows users to connect to a TWS FL8 device over a
TCP/IP network. It provides access to a command-line interface, allowing a trained technician to
analyze or debug problems.
Secure Shell (SSH): SSH is a network protocol used to create a secure connection between
TWS FL8 and a users computer. The SSH connection provides authentication and encryption.
File Transfer Protocol (FTP): FTP is used to transfer files between TWS FL8 and the users
computer over the network.
IP Forwarding: IP Forwarding allows network requests to be redirected to a specified IP address

that might be located on another network. IP Forwarding enables one device to act as a gateway,
forwarding IP packets to another network device.
3.8.4. Serial Ports

TWS FL8 has four serial ports. The RS232-1 port is accessible from the front panel (open the front
panel), and the RS232-2, RS232-3, and RS485 are accessible from the rear panel.
The pin out details for the RS232-1, RS232-2, RS232-3, and RS485 are provided in the following
table.
RS232-1 RS232-2 RS232-3 RS485
Pin 1 Pin 1 SD Pin 1 Pin 1 +RXD
Pin 2 RXD Pin 2 RXD Pin 2 RXD Pin 2 -RXD
Pin 3 TXD Pin 3 TXD Pin 3 TXD Pin 3 +TXD
Pin 4 Pin 4 DTE Pin 4 Pin 4 -TXD
Pin 5 GND Pin 5 GND Pin 5 GND Pin 5 GND
Pin 6 DCE Pin 6 DCE Pin 6 DCE
Pin 7 RTS Pin 7 RTS Pin 7 RTS
Pin 8 CTS Pin 8 CTS Pin 8 CTS
Pin 9 Pin 9 RI Pin 9
The following table provides details of the services that can be run on each port and the
corresponding serial cable type to be used.
Port Name Functionality/Services Cable Type
RS232-1 Debug port Simple null modem without

handshaking
RS232-2 PPPD on SERIAL Null modem with loop back

handshaking
PPPD on MODEM Standard modem cable (DTE-DCE)
RS232-3 Protocols * Simple null modem without

handshaking
IRIG-J Simple null modem without

handshaking
PPPD on SERIAL Null modem with loop back

handshaking
PIC Programming (on-boot up) -
RS485 Protocols (DNP/Mod bus/IEC -

60870/IEC 61850)
*: Optional
PPPD on SERIAL: This service is enabled or used when the TWS FL8 device needs to be
connected directly to a computer without a modem.
PPPD on MODEM: This service is enabled or used when the TWS FL8 device needs to be
accessed through a modem.
Cable Types
The following figures show the different cable types.
Figure 3.24 Simple Null Modem Without Handshaking
Figure 3.25 Null Modem With Loop Back Handshaking
Figure 3.26 Standard Modem Cable
3.9. USB
3.9.1. USB Functionality

When a user plugs in a USB storage device to TWS FL8, the device checks for a specific folder
and validates the unique serial number and digital signature available in the script file inside the
folder. Once the digital signature is verified, the TWS FL8 device parses the script file to perform
any of the following operations:
Upload and download configuration
Firmware upload
Data download
In addition, the user can select and download data to the USB through the MMI.
3.9.2. USB Functions With or Without Script and MMI-LCD

The following table lists the different scenarios of the USB script file and the LCD interface.
Scenarios USB Operation
Script file is available but the LCD The USB performs operations according to the
interface is not available. script.
Both the script file and the LCD The USB performs operations according to the
interface are available. script because the script has higher priority.
Both the script file and the LCD The USB does not perform any operation.
interface are not available.
The script file is not available but The USB performs the data download operation
the LCD interface is available. through the LCD interface.
Note The USB script is a future enhancement.
3.9.3. LED Indication
The following table lists the LED indications:
LED Indicators Description
Flashing Green For any operation, such as a firmware

update/configuration download/configuration update or
a data download that happens through the USB.
Solid Green The USB communication process is completed.
Red An error occurred in the USB communication process.
OFF No USB communication.
Figure 3.27 USB LED Indication
3.10. Clock Synchronization

Each TWS FL8 device has an internal clock for maintaining the time-stamp for the recorded data.
This clock can be synchronized to an external GPS, internal RTC, IRIG-B, or IRIG-J. When
multiple TWS FL8 devices are installed at any one site, any one device (the time master) can be
used to synchronize the other devices (time slaves) by using a PPS signal (Refer to Figure 4.2).
Therefore, using clock synchronization, all TWS FL8 devices can be synchronized to the same
time and synchronously sampled to the GPS, internal RTC, IRIG-B, or IRIG-J.
3.10.1. TWS FL8 as Master
Using an External GPS PPS

An external GPS antenna shall be connected to the BNC connector on the rear panel of the TWS
FL8 device.
The antenna cable type is RG6 with BNC terminations connected to a Trimble Bullet antenna
(maximum length is 45 m without an amplifier).
TWS FL8 can be configured as the time master using iQ+, as shown in the following figure. Refer
to iQ+ help for additional information.
Figure 3.28 - Time Management
3.10.2. TWS FL8 as Slave

When TWS FL8 is configured as a time slave, it receives PPS input from the time master and
derives the time of the day by using NTP over the network.
TWS FL8 can be configured as a time slave using iQ+, as shown in the following figure. Refer to
iQ+ help for additional information.
For TWS FL8 to be fully time-synchronized as a time slave, both PPS and NTP
are required from the time master.
Figure 3.29 TWS FL8 Time Master/Slave Configuration
Note In the absence of PPS input for the slave mode of operation, TWS FL8 will
use NTP time as the time reference from the configured NTP server. Because
TWS FL8 is not synchronized with the PPS time marker, the accuracy of time
synchronization is impacted.
3.10.3. TWS FL8 Time Accuracy
Figure 3.30 - TWS FL8 Time Accuracy
3.10.4. PPS Detection, Stability and Lock Mechanism

TWS FL8 can be configured with any one of the external PPS sources for time reference. Once
the edge of the external PPS is detected, the ON duration of the PPS pulse is checked, and it
must exceed a minimum of 100 ms for the PPS to be validated.
The next level of validation is the PPS stability check. The external PPS pulse is said to be
stable, as long as the PPS to PPS duration remains constant within the acceptable jitter limit as
mentioned in the following table.
Sl. No. External Time Source (PPS) Jitter Limit (+/- )
1 GPS 10 s
This check is performed continuously and the status of the PPS stability is updated every 16
seconds. If the external PPS is stable for 16 seconds, then the PPS is declared as stable; else, it
is rejected. When multiple TWS FL8 devices are in the locked state, ADC sampling is
synchronized.
TWS FL8 is said to be locked to External time source when the internal time is synchronized
with the external time source within an acceptable band of time accuracy.
TWS FL8 is said to be in Not-Locked State if any of the following conditions occurs:
The external PPS does not pass the stability check.
The time difference is not within the acceptable jitter limit.
When there is a transition of TWS FL8 internal PPS from not-locked to a locked state, time
correction occurs. The time correction can happen in any of the following ways:
Gradual time correction
Abrupt time shift
Gradual Time Correction
The TWS FL8 internal time is corrected gradually if the difference is less than 0.5 seconds with
respect to the external time. The maximum error correction allowed per cycle is approximately half
of the intersampled delay. Approximately, the time required to perform the correction for a 0.5-
second error is 8.5 minutes. As a result, after the device is switched on, the clock synchronization
LED might take a maximum of 8.5 minutes to turn on indicating the system is locked.
Abrupt Time Shift
If the difference in time is greater than 0.5 seconds, then the TWS FL8 internal time will be
abruptly shifted to the external time. The abrupt shift in time is always indicated to the user.
3.11. Input Connections
Figure 3.31 - TWS FL8 Input Connections
3.11.1. Analog Inputs
Analog inputs are connected to the Terminal blocks at the back panel.
Line Module Number Terminal Block Number for

Analog Inputs
LM1 TB21
LM2 TB20
LM3 TB17
LM4 TB16
LM5 TB10
LM6 TB09
LM7 TB06
LM8 TB05
There are three analog inputs for each line module. Output of the linear coupler is connected to
the positive and negative pins of the analog connector.
Example: For LM 7 Channel 1, the output of the linear coupler is connected to 1+ and 1-. The third
pin is connected to the cable shield.
Figure 3.32 - TWS FL8 Analog Inputs
3.11.2. Digital Inputs

The TWS FL8 device supports two digital inputs for each line module. All the input channels are
bi-directional.
TWS FL8 supports two digital inputs for each line module with the specifications as shown below.
For nominal voltage 48 V, 110 V, and 220 V, to a maximum input of 250 V:
o Less than 30 V No activation
o (30-35) V Undefined
o Above 35 V Activation
Line Module Number Terminal Block Number for

Digital Inputs
LM1 TB18
LM2 TB19
LM3 TB15
LM4 TB14
LM5 TB8
LM6 TB7
LM7 TB4
LM8 TB3
Figure 3.33 - TWS FL8 Digital Inputs

C stands for Common Terminal, 1 stands for Digital input 1, 2 stands for digital Input 2.
Digital input has to be connected between 1 and C, and digital input 2 has to be connected
between 2 and C.
3.12. Alarm Output

TWS FL8 supports alarm outputs 1 to 4 on the TB13 terminal block.
Note Relay 1 is not configurable. However, relays 2, 3 and 4 are configurable. iQ+
does not support.
3U
Figure 3.34 TWS FL8 Alarm Outputs
Relay Specifications
Contact Form : SPST NO/SPST NC
Coil Voltage : 5 VDC
Contact Rating : 5 A at 250 VDC/30 VAC, 8 A at 250 VAC/30 VDC
Service Life
Mechanical : 50,000,000 operations minimum (at 18,000 operations/hour)
Electrical : 100,000 operations minimum (at 1,800 operations/hour under rated load)
The following pin out table lists the different alarm configurations.
Pin Alarm Indication Pulse Default

No. Configuration Width State
(ms)
System Healthy Normally
Pin 1 Relay1 Out +
Closed
Pin 2 Relay1 Out - (NC)
DHCP configuration changed 100 Normally

Pin 3 Relay2 Out +
Open (NO)
Pin 4 Relay2 Out - Memory threshold crossed for 500
linear mode of recordings
Device shutdown 500

Pin 5 Relay3 Out + Normally
Open (NO)
Manual Time set by user 500
Memory full for linear mode of 500

recordings.
Pin Alarm Indication Pulse Default

No. Configuration Width State
(ms)
Pin 6 Relay3 Out - FL Recording 500
Pin 7 Relay4 Out + Temperature Over/Under 65535 Normally

Threshold crossed Open (NO)
Pin 8 Relay4 Out -
Pin 9 Internally
Pin 10 connected to
GND
The relay default settings are done at the factory as per the customer order.
Note Wire gauge to be used for Alarm outputs: 14-26 AWG.
Installation
Chapter 4
Installation
Installation
4. Installation
This chapter describes the installation procedure of the TWS FL8 device.
4.1. Unpacking Procedure

Verify the package is not damaged if so contact courier.
Remove and verify contents from package.
4.2. Accessories
Following accessories are provided:
Serial port cable
RJ45 cable 2 m (straight)
RJ45 cable 2 m (crossover)
Operating manual
Configuration CD (containing the standalone configuration tool)
Four loose empty labels that the customer can place over existing labels if any settings are
changed at a later stage.
Test reports (including the serial port communication default settings of the device)
Installation
4.3. TWS FL8 Installation Specifications

The following figure shows a single TWS FL8 communication to a computer through Ethernet or
Modem.
Figure 4.1 Standalone TWS FL8
Installation
If multiple TWS FL8 devices are installed at a given location or across different locations, they
communicate with each other using twisted pair or fiber-optic Ethernet as shown in the following
figure.
Figure 4.2 Networked TWS FL8
In Figure 4.2, TWS FL8 #1 is configured as the time master and TWS FL8 #2, #3, and #4 are
configured as time slaves.
The twisted pair Ethernet communications are also known as

Note
10/100 Base-T, and have a maximum range of 100 m (300 ft)
under normal conditions for error free communication. It is not
recommended that the user extend twisted pair Ethernet cables
beyond an adjacent cubicle in a substation environment. This is
done to avoid induced transients from other conductors.
Fiber-optic Ethernet network, also known as 100Base-FX, is
recommended for long distance communication that can be
extended over 1 km, when being used in multi-mode fiber.
Installation
4.4. Device Communication Settings

1. Connect the device using default communication settings of the device.
2. User can change the device communication settings in iQ+. Refer section 6.2.
3. Open the configuration window and make the respective changes in the communication port
settings of Ethernet, modem and serial ports.
4. Once the changes are done, user can send the configuration to the device by clicking on the
button Send To Device in the configuration window of iQ+.
4.5. Installation Procedure
Remember the following:

In order to ensure safe operation, first connect the device to protective earth and then
connect it to the power supply.
Before connecting the circuits, ensure that the maximum measuring voltage and maximum
voltage to earth are not exceeded.
Do not use leads and accessories that do not fulfill the relevant safety standards. This could
lead to serious injury or death from electric shock.
Make sure that the device is installed in an area where heat dissipation is not restricted.
Ensure that the device is in the operating temperature range and humidity conditions as
specified in Appendix A before switching it ON.
4.5.1. Setting up the Device
1. Mount the device on the rack.

2. Connect the power cord to the 3-pin terminal block located on the rear panel of the device.
3. The 3-pin power terminal block is labeled with L, N, and an Earth symbol. The power cord
must be connected accordingly.
4. Connect analog and digital inputs, and alarm outputs as per the specified configuration
instructions (refer to Section 3.11).
5. If a UPS card is present, ensure that the UPS is switched ON.
6. Switch on the power supply using the button located on the rear panel of the device.
4.5.2. Starting the Device

To ensure that the device has been installed correctly, the following needs to be checked. When
the TWS FL8 device is powered ON, all the LEDs on the front panel must flash in green (in anti-
clock wise direction). This indicates that the device is booting up. TWS FL8 takes about 3 minutes
for the boot-up process.
Installation
Note If the user has upgraded the firmware for standard MMI, then during the next
boot up of TWS FL8, the LEDs on the right flash from top to bottom, and the
LEDs on the left flash from bottom to top in green. This is in addition to the
normal boot up mode.
4.5.3. Checking for Correct Operation

The front panel Healthy LED must be green. This indicates that the device is installed correctly
and is ready to use.
4.5.4. Connecting the Inductive Couplers (Transducers)

The inductive couplers are shown in Figure 4.3 and 4.4 as shown below:
Figure 4.3 - Inductive Couplers with Polarity Dots
It is important to match the polarity dots of the two sections of the linear coupler when
fitting as shown.
Installation
Figure 4.4 - Inductive Coupler Dimensions
The inductive couplers should have an air gap between the two halves when installed.
Nylon washers are provided for this purpose. See Figure 4.4 for positional details of
the nylon washers.
The linear couplers need to be fitted one on each phase around the secondary wiring from the
protection current transformers associated with the line being monitored. They need to be fitted
consistently facing the same direction on each phase to meet the direction (polarity) convention. It
has been accepted that the positive direction of view is towards the line (see section 4.5.5). They
should be fitted to the connecting leads of a set of protection current transformers, which are
dedicated to feeding a protection relay (digital relays result in better signals than
electromechanical relays). See figure 4.5. If this is not possible, please consult QUALITROL for
advice.
Installation
Figure 4.5 - Inductive Coupler Connection
The connecting cable between the linear couplers and TWS FL8 should either be:
Three individual cables (one for each phase).
Each cable should be a screened twisted pair cable. Conductors should be of copper and at
least 7 strand 0.25 mm (for mechanical strength in a substation environment). Insulation
should be polythene or polypropylene for low loss.
One cable containing 3 individually screened twisted pairs.
Conductors should be copper and at least 7 strand 0.25 mm for mechanical strength.
Insulation should be polythene or polypropylene for low loss.
The three core cable is preferred.
Terminal blocks are provided to fit the cable to the linear coupler secondary connections.
Alternatively, the cable can be soldered directly onto these connections and a low temperature
heat shrink sleeve fitted to match the cable size being used. The cable screens should be
insulated and left open circuit.
The other end of the cable is connected to the TWS FL8 analogue inputs marked A, B and C
as shown below in Figure 4.6. Note that polarity is marked on the terminal block. The + at the line
module needs to be connected to the terminal adjacent to the polarity dot on the linear coupler
(see figure 4.3).
The cable screens must be connected to one of the earth terminals on the TWS FL8 line module
terminal blocks.
The cable(s) at the TWS FL8 should be clearly labeled with the line name. A label should be fitted
identifying feeder names with line module numbers.
Installation
Figure 4.6 - View of Physical Analogue Channel Connections
The length of the cable between the inductive couplers and TWS FL8 should be no
longer than 25 m. Contact QUALITROL if longer cable runs is required. The screen is
earthed at the TWS FL8 end only. Observe the polarity: dot on linear coupler to + on
TWS FL8.
4.5.5. Inductive Coupler Polarity

Care should be taken to maintain polarities so that the phasing of connections from the current
transformers to TWS FL8 is known. The split core inductive couplers are installed without circuit
outages. The inductive couplers allow travelling waves to be recorded but attenuate the 50/60 Hz
components.
The convention is to install inductive couplers looking into the line (as described in section
4.5.5). Figure 4.7 shows an in zone fault. The inductive couplers in this example are installed in
such a way that they are looking into the line. The resulting transients recorded by the TWS FL8s
at either end of the line (shown in green) then have the same polarity.
Figure 4.7 - Fault Occurring on the Line Being Monitored by the TWS FL8
Figure 4.8 shows an out of zone fault again with both the inductive couplers installed at each end
of the line looking into the line. The resulting transients recorded by the TWS FL8 this time have
opposite polarities.
Installation
Figure 4.8 - Fault Occurring Outside the Line Being Monitored
4.5.6. Optional Mounting Board for CTs

If requested, the CTs can be attached to an optional mounting board rather than the usual loose
installation. Figure 4.9a and 4.9b shows how the CTs are fastened to the mounting board. Note: If
the CTs are installed in this manner then it is necessary to open circuit the CT wiring located at P2
to allow connection to the screw terminals on board.
Figure 4.9a - Optional CT Mounting Board
Figure 4.9b - P1 Secondary Outputs
Installation
4.5.7. The GPS Antenna

Link the GPS antenna to the connection on the rear of TWS FL8. There are a number of GPS
satellites in different orbits, and at any time, the antenna must be able to lock on to four of them
for accurate time synchronization. This means that the requirements for a GPS antenna are very
different from that of a satellite antenna for domestic use that is a directional antenna looking at
one satellite in a geostationary orbit. The GPS antenna therefore needs to be installed in a
position where it can see the sky as much as possible. See figure 4.10 for an antenna placement
guide. The antenna is provided with a 10 m connecting cable terminated in the correct BNC plug
to fit the GPS antenna socket on the rear panel. The antenna is mounted on a 25 mm mast and
should be placed with as much visibility to open sky as possible. If necessary, the cable can be
extended with up to a maximum of 30 m of RG6 cable. Longer cable runs require in-line
amplification. For further detail, please contact QUALITROL.
Figure 4.10 - GPS Antenna Placement Guidelines
Figure 4.11 - GPS Antenna
Installation
Figure 4.12 - Adapter for GPS Antenna
Mounting Plate 23.2 cm x 26 cm. Mast height 65 cm without antenna adapter fitted.
Figure 4.13 - Optional Antenna Mounting Kit
Serial Connection to TWS FL8
Chapter 5
5. Serial Connection to TWS FL8

This chapter provides instructions to configure serial connections to the TWS FL8 device.
5.1. Functionality/Service
5.1.1. PPPD on Serial
User has to enable to use this service, when the TWS FL8 device is connected directly to a PC
without a modem. The type of cable to be used for this service is Null Modem with loop back
handshaking.
Steps to establish a PPPD connection over Serial
1. In Windows-XP, go to Start-> Control Panel-> Network and Internet Connections ->

Network Connections.
2. In the Network Tasks, click Create a new connection. The following wizard is
displayed for creating the new connection.
Figure 5.1 New Connection Wizard
3. Click on the Next button.
Figure 5.2 Network Connection Type
4. Select the Set up an advanced connection and click Next.
Figure 5.3 Advanced Connection Options
5. Select the radio button Connect directly to another computer and click on the Next
button.
Figure 5.4 Host or Guest Page
6. Select Guest and then click on Next.
Figure 5.5 Connection Name
7. Mention any name, say LnT and click on the Next button.
Figure 5.6 Select a Device
8. Select Communications Port (COM x) and then click on Next.
Figure 5.7 Connection Availability
9. Select Anyones use and then click on Next.
Figure 5.8 Completing the New Connection
10. Select Add a shortcut to this connection to my desktop and then click Finish. A
shortcut icon for serial connectivity is created on the desktop of the PC.
11. Now double click on the created shortcut icon. The following wizard is displayed.
Figure 5.9 Connect to LnT
12. Click on Properties. The following wizard is displayed.
Figure 5.10 LnT Properties
13. Click Configure to start the below wizard.
Figure 5.11 Modem Configuration
14. From the Maximum speed (bps) drop down list provided, the user has to select the
speed as 38400. (The default baud rate of serial port on the TWS FL8 device is set to
38400).
15. De-select Enable hardware flow control.
16. Click OK to end the below wizard.
17. The PC name is displayed in the User name by default. The user has to enter any
characters.
18. Click Connect. The following screens are displayed.
Figure 5.13 Verifying and Completing Registration
This implies the connection is formed.
To check the status of connection:

1. Go to Start->Control Panel-> Network and Internet Connections -> Network
Connections
Figure 5.14 Status-General
2. Double click Direct ->LnT to know the status of connection.

A LnT Status popup screen is displayed.
3. In the General tab user has to observe the status as connected.
4. Click the Details tab, the following screen is displayed.
Figure 5.15 Status-Details
Server IP address: It is the new / temporary IP address assigned

Note
to the TWS FL8 device and meant only for the PPPD on serial
link.
Client IP address: It is the new / temporary IP address assigned
to PC and meant only for the PPPD on serial link.
The Server IP address & Client IP address is user configurable.
User has to use Server IP address (10.38.0.2 in the above mentioned example screen) to access
the TWS FL8 device via PPPD serial link.
PPPD ON MODEM:
User can enable to use this service, when the TWS FL8 device needs to be accessed via modem.
User has to use Standard Modem cable type for this service.
Pre Requisites:
User has to make sure that appropriate modem drivers are installed and the
Note modem is detected by the PC. Please refer to the CD/Manual provided by the
Modem manufacturer for driver installation instructions. Once the drivers are
installed and modem is connected to the PC, user has to follow the below
procedure to verify whether modem is detected or not.
In the PC, go to Start->Control Panel-> Printers and Other Hardware->Phone and Modem
Options.
Figure 5.16 Phone and Modem Options
Under the Modems tab, the user can observe the installed modems as shown below.
Figure 5.17 Modems
Ex: In Figure 5.17, the modem detected is Conexant ACF External PnP ..Modem.
Steps to Establish a PPPD Connection Over Modem
Once the pre-requisites are met, the user has to perform the following steps for establishing the
PPPD connection over Modem.
1. In Windows-XP, Go to Start->Control Panel-> Network and Internet Connections ->

Network Connections.
2. Click Create New Connection.
The following wizard is displayed for creating the new connection.
Figure 5.18 New Connection Wizard
3. Click Next.
Figure 5.19 Network Connection Type
4. Select Connect to the network at my workplace and click on Next button.
Figure 5.20 Network Connection
5. Select Dial-up connection and click Next.
Figure 5.21 Connection Name
6. Enter the name of your choice in the Company Name field (in this case, LnT) and click
Next. The following wizard is displayed.
Figure 5.22 Phone Number to Dial
7. User has to enter the phone number (which the user wishes to dial) in the Phone
Number field and click Next.
8. Please refer to the instructions in the wizard for entering the correct number with the
appropriate area code, 0 prefixing, etc.
Figure 5.23 Connection Availability
9. The user can select either Anyones use or My use and then click Next.
Figure 5.24 Completing the New Connection Wizard
10. Select Add a Shortcut to this connection to my desktop for creating a shortcut to
the dial up connection on the desktop and click Finish. Now, the user will be able to
see a connection formed with the LnT (in this example) shortcut in the desktop as well
as in the Network connections (in control panel).
Figure 5.25 Network Connections
11. Now, double click the LnT shortcut on the desktop. The following wizard is displayed.
Figure 5.26 Connect LnT
12. For setting the Baud rate, the user must click Properties. The following window is
displayed.
Figure 5.27 LnT Properties
13. Click Configure.
14. Change the Maximum Speed to 38400.

15. Ensure that all hardware features are enabled.
16. Click OK. The following wizard is displayed.
Figure 5.29 Connect LnT
Note If the user wishes to change the number, then edit in the click on Dial column
provided.
17. Enter any characters.
18. Click Dial, the following screens are displayed.
Figure 5.30 Verifying and Completing Registration
This implies that the connection is formed.
To check the status of connection:
1. Go to Start->Control Panel-> Network and Internet Connections -> Network

Connections.
Figure 5.31 LnT Status
2. Double click Direct ->LnT to view the status of connection.

An LnT Status popup screen is displayed.
3. In the General tab, the status should be connected.
4. Click the Details tab. The following screen is displayed.
Figure 5.32 Status Details
Server IP address: It is the new / temporary IP address assigned to TWS

Note
FL8 device and meant only for the PPPD on modem link.
Client IP address: It is the new / temporary IP address assigned to PC
and meant only for the PPPD on modem link.
The Server IP address & Client IP address is user configurable.
The user has to use the Server IP address (10.38.0.2 in the aforementioned example screen) to
access the TWS FL8 device via PPPD modem link.
Configuration
Chapter 6
Configuration
Configuration
6. Configuration
This chapter provides instructions to configure the TWS FL8 device and the iQ+ software.
Note This Web page viewing is supported from IE8 version in Compatibility View
Mode.
6.1. TWS FL8 Web Page
6.1.1. Home Page of FL8 Device

Type the IP address of the device on the address bar of the Internet Explorer, the home page of
FL8 is displayed.
Figure 6.1 Home Page of FL8 Device
Configuration
FL8 Configuration
The FL8 Configuration button is used to configure the FL8 Device.
FL8 Trigger Test
The FL8 Trigger Test button is used to generate triggers in FL8 device.
View FL8 Records
View FL8 Records is used to view the FL records list in the FL8 device, view or delete the
selected record. The View FL8 Records option directs the user to a screen in which the user can
select the line module. Records (last 20, last 500, last 1000 or all) are displayed from those line
modules.
GPS Status
GPS Status is used to view the current GPS status of the device like Current Local time, Number
of satellites and other GPS information.
System Information and Calibration
The System Information and Calibration button is used to calibrate the system and view the
system Information, such as the type of license.
Firmware Upgrade
The Firmware Upgrade page is used to upgrade the firmware of CPU, DSP, FPGA, PIC and MMI
in the device.
Change Password
Change Password is used to change the password for the FL8 Web page.
Configuration
6.1.2. FL8 Configuration Web Page
Click FL8 Configuration on the FL8 Home page.
Figure 6.2 Configuration Web Page of FL8 Device
Start Page Tab
The Start Page tab is used to find information about the different tabs available
Fault Location Tab
The Fault Location tab is used to configure the FL parameters of all the eight line modules.
Configuration
System Tab
The System tab is used to configure the IP address, DNS setting and the name of the device.
Time Tab
The Time tab is used to configure time related configurations, such as the Time master or slave,
time source, Time master IP address, etc.
Serial Tab
The Serial tab is used to configure Serial Port, Modem and Serial PPP related configurations.
6.1.3. Fault Location Tab of the FL8 Configuration Web Page
Figure 6.3 Fault Location Tab of FL8 Configuration Web Page
Configuration
For all the line modules, the following configurations are applicable:
Line Module Name: Specifies the name of the individual line module.
Sampling Frequency: Used to select the sampling frequency.
Trigger Threshold: Specifies the trigger threshold level which will trigger the line module if the
input signal exceeds this configured value.
Channel Gain: Used to adjust the ADC input level to a constant value irrespective of the input
applied. The full scale deviation (FSD) input to the FL card is in the range of 50uA to 2mA & to
match this input range to the FSD value at the ADC input, the gain needs to be adjusted based on
the FSD input. This is called variable gain adjustment. The user has to configure the gain value in
percentage in IQ+ based on FSD input.
Trigger Lockout:
Trigger Rate: Used to configure line module lockout triggers.

Duration: Used to configure the lockout duration.
Digital Inputs:
Channel: Specifies the digital input number.
Each line module can support two digital inputs.
Name: Naming convention used for the digital inputs which is user configurable.
Normal State: Specifies the normal state of the digital input which can be configured
either as low or high.
Normal State Label: User configurable digital input label name for normal state.
Alarm State Label: User configurable digital input label name for alarm state.
Configuration
6.1.4. System Tab of the FL8 Configuration Web Page
DHCP Disable
Figure 6.4 System Tab of System Configuration Web Page with DHCP Disable Configuration
When the DHCP status is DISABLED for any Ethernet interface, the IP Address, Gateway IP,
and Netmask IP need to be entered manually by the user.
Configuration
DHCP Client
Figure 6.5 System Tab of System Configuration Web Page with DHCP Client Configuration
When the DHCP status is CLIENT for any Ethernet interface, the IP Address, Gateway IP, and
Netmask IP are assigned dynamically by the DHCP server. As a result, the user entry for the IP
Address, Gateway IP, and Netmask IP will be restricted.
Configuration
DHCP Server
Figure 6.6 System Tab of System Configuration Web Page with DHCP Server Configuration
When the DHCP status is SERVER for any Ethernet interface, TWS FL8 assigns IP addresses
for the other DHCP clients in the network. The IP configuration for the TWS FL8 is done by the
user.
Configuration
Network Services
Figure 6.7 System Tab of System Configuration Web Page with Network Services
Devices can be accessed using putty via the network services, which are enabled in the above
screen.
Configuration
6.1.5. Time Tab of the FL8 Configuration Web Page
Figure 6.8 Time Tab of System Configured as Time Master
This screen enables the user to select the time source connected to TWS FL8. In the TIME
MASTER mode, all the Time Slave configurations are disabled.
Configuration
Figure 6.9 Time Tab of System Configured as Time Slave
In the TIME SLAVE mode, all the Time Slave configurations are enabled.
Configuration
6.1.6. Serial Tab of the FL8 Configuration Web Page
Figure 6.10 Serial Tab of FL8 Configuration
6.1.7. View FL8 Records Page
This page is used to view the FL record list in the device.
6.1.7.1 FL Record view selection
When View FL8 Records is clicked on the home page, the following screen is displayed. This
screen helps the user to filter the line modules and number of records for which the user wants to
view the record list.
Configuration
Figure 6.11 FL Record View Selection
6.1.7.2 FL Records List
This screen is used to view the FL records in the line modules and number of records as selected
in the Record View Selection screen.
Once the records are listed, the user can view and delete the record from any line module.
Configuration
Figure 6.12 FL Records List
Figure 6.13 FL Records List (Record Selection, Record View Selection, Delete Record)
Configuration
Note The feeder name in the FL records list will always match the line module
name in the record selection.
6.1.7.3 FL Record View
Figure 6.14 FL Record View
Note Time axis labeling on the record viewer page will be different on the large
scale and detailed views.
Configuration
Figure 6.15 FL Record View
Configuration
6.1.7.4 FL Trigger Test
This page is used to generate triggers in FL8 Design.
Figure 6.16 FL Trigger Test
Configuration
6.1.7.5 GPS Status
This page is used to view the GPS Status and the Current Local time.
Figure 6.17 GPS Status
Configuration
6.1.8. Change Password Page
This page is used to change the TWS FL8 Web page password.
Figure 6.18 Password Change
Configuration
6.2. Software Configuration from iQ+

To establish the communication using iQ+, the following steps must be performed:
1. Start iQ+.
Figure 6.1 Starting iQ+
Configuration
2. To create a new device, right click All Devices as shown in the following figure:
Figure 6.2 Creating a New Device
Configuration
3. Select TWS FL-8 from the device list.
Figure 6.3 Selecting TWS FL8 Device
Configuration
4. Enter the device details and save this information.
Figure 6.4 Creating a Device
A new device is created.

5. Right click the TWS FL-8 device and select Retrieve Configuration. The previously
configured settings from the device are loaded. (Factory default settings are loaded
when the TWS FL-8 device is initialized for the first time.)
Configuration
6.2.1. Configuration Overview
Configuring the Line Module

The following screen of iQ+ can be used for configuring individual line modules.
Figure 6.5 Line Module Configuration
Line Module Name: Specifies the name of the individual line module.
Sampling Frequency: Used to select the sampling frequency.
Trigger Threshold: Specifies the threshold level which will trigger the line module if the
input signal exceeds the configured one.
Channel Gain: Used to adjust the ADC input level to a constant value irrespective of
the input applied. The full scale deviation (FSD) input to the FL card is in the range of
50uA to 2mA, and to match this input range to the FSD value at the ADC input, the
gain needs to be adjusted based on the FSD input. This is called variable gain
adjustment. The user has to configure the gain value in percentage in IQ+ based on
FSD input.
Trigger Lockout:
o Trigger Rate: Used to configure line module lockout triggers.
o Duration: Used to configure the lockout duration.
Configuration
A line module will be locked out if too many triggers are received in a defined time
period. The parameters will be the rate (selectable from 30 to 120 triggers per minute
in steps of 10) and the duration (selectable from 1 to 5 minutes in steps of 1 minute).
Digital Inputs:
o Channel: Specifies the digital input number.
Each line module can support two digital inputs.
o Name: Naming convention used for the digital inputs which is user
configurable.
o Normal State: Specifies the normal state of the digital input which can be
configured either as low or high.
o Normal State Label: User configurable digital input label name for normal
state.
o Alarm State Label: User configurable digital input label name for alarm state.
After entering the values, click Send to Device for the configured values to have
effect.
Note Refer to iQ+ Help for associated software settings.
Configuration
FL Manual Trigger
The FL Manual Trigger is used to generate manual triggers for individual line modules.
Figure 6.6 FL Manual Trigger
Configuration
Clicking FL Manual Trigger displays the following window.
Figure 6.7 - Manual Trigger Selection
Select the line modules for which you want to trigger the manual trigger and click OK.
Configuration
FL Diagnostic Trigger
The FL Diagnostic Trigger is used to generate triggers on all line modules at one time which are
mainly used to test the hardware circuitry. A single diagnostic trigger will generate two records on
each line module.
Fig 6.8 - Diagnostic Trigger
1. The user needs to refer to iQ+ Help for detailed procedures to configure TWS FL8 for
Fault Location measurements.
TWS FL8 must be configured for all required parameters including the device name
and substation name through navigation across all subfields of the overview tree
structure as described in the following sections.
2. After modifying the configuration, the user can save it in the database or save and send
the configuration to the device by clicking the following buttons:
Save to Database: To convert the configuration to XML file and send it to the server;
the file is saved in the database.
Configuration
Send To Device: To convert the configuration to XML and send it to the server. The
file is saved in the database and also sent to the TWS FL8 device for measurements.
6.2.2. Communications
Through Ethernet Ports
Figure 6.9 Ethernet Ports Configuration with Default Values
Through Modem: To communicate using modem, port RS232-2 must be configured for the
internal or external modem (the user needs to select the Modem Type). RS232-2 is the
configuration editor for the TWS FL8 device in iQ+. If the user selects the Modem Type as None,
then the modem service will not run in TWS FL8.
Through Serial Ports: To communicate using serial ports, the user must configure the hardware
settings for the respective port.
Configuration
Figure 6.10 RS232-2
Internal modem is optional.

Note
For more information about configuration, refer to iQ+ Help.
Configuration
Figure 6.11 RS232-3
Note For more information about configuration, refer to iQ+ Help.
Maintenance
Chapter 7
Maintenance
Maintenance
7. Maintenance
7.1. Calibration
TWS FL8 is shipped after calibration. However, if the user changes or exchanges the FL daughter
board, then the device should be re-calibrated as per the following procedure.
7.1.1. Calibration Procedure
1. Open a Web browser and enter the following URL:

<http://Board_ip_address/mfgindex>
Board IP is the IP address configured for the device and it must be mentioned in the
URL. For example:
<http://192.168.36.226/mfgindex>
Default user and password (mfgindex/tabindex):

Username: qualitrol
Password: qualcorp_techSupport10
For changing password go to:

http://<ip address of device>/tabindex_password
2. Click the CalibrationFL/TR tab.
Maintenance
Figure 7.1 - TWS FL8 Manufacturing Utility Homepage
3. Select the line modules to be calibrated.

Consider the following example: The device has 8 line modules. We need to calibrate
line module 1, line module 2, line module 5, and line module 6.
Maintenance
For this situation, do the following steps:

1. Click the Calibrate FL button.
Figure 7.2 - FL Calibration
Maintenance
2. Click Calibrate FL.
Figure 7.3 Offset Calibration
3. Select the line modules that need to be calibrated and click Continue.
The calibration command is sent to the device after a delay of 10 seconds. The delay is
introduced by the GUI to allow the device to settle with the specified input. During offset
calibration, the device enters the Calibration mode in which all line modules are disabled.
Maintenance
Figure 7.4 FL Calibration in Progress
Maintenance
Figure 7.5 - FL Line Module Selection for Calibration
Maintenance
Once the calibration is done the offset value is published on the Webpage.
Figure 7.6 - FL Offset Values After Calibration
Maintenance
7.2. General Maintenance
7.2.1. Storage
Keep the original packaging intact. It might be required at a later stage for transport.
Store the device in a dry room; maintain a temperature range of -30C to +70 C and a
maximum humidity of 95 %.
Keep the User Manual supplied with the device for future reference.
Protect the device against direct sunlight, heat, moisture, and mechanical impacts.
If the unit has a battery, switch off the battery by using the switch that is available on
the UPS board during storage. Refer to Appendix E for more information.
7.2.2. Transport
Only the original packaging guarantees proper protection against mechanical impacts.
Transport the device only in its original packaging.
Protect the device during transport against heat and moisture; maintain the
temperature range of -30C to +70C and maximum humidity of 95%.
Protect the device against impacts and loads.
7.2.3. Routine Maintenance

This instrument is a solid-state electronic device and there are no adjustable or renewable parts
inside that require routine maintenance.
However, after the first commissioning, it is recommended that a calibration check be performed
every 5 years.
Maintenance
7.2.4. UPS Maintenance

Precautions for Handling and Use of Battery:
Avoid shorting the battery.
Do not immerse in water.
Do not disassemble or deform the battery.
Do not expose to, or dispose the battery in fire.
Store the battery in a cool, dry, and well-ventilated area.
Never use a battery that has suffered abuse.
Acute Health Effects and First Aid Measures:
In the unlikely event of an accidental exposure to the battery fluids, direct contact with skin and
eyes are to be considered serious and must be treated immediately.
In the event of a contact with the battery fluids, rinse with large volumes of water for at least 15
minutes, and consult a doctor.
Storage of Battery for a Long Time:
If the batteries are stored for more than 3 months without use, then they have to be discharged
completely and recharged until 50% of the "end of charge" voltage. If these batteries are stored for
more than 6 months, there can be a serious effect on the battery life.
For further information about batteries, refer to data provided by the manufacturer.
7.3. Firmware Upgrade
7.3.1. TWS FL8 Firmware Upgrade Procedure

Perform the following tasks to upgrade the firmware:
1. Contact Qualitrol for the latest versions of firmware.
2. Create a new folder on the computer to store the firmware files.
3. Save the initrd_CMxx.yy_Azz_with_crc.bin file in this folder.
4. Save either fpgafl_bank1.bin in this folder.
5. Save the pic_bank1.bin file in this folder. If the kernel has to be changed, then save the
ulmage_x.y_with_crc file in this folder.
6. Communication between the computer and the device can be made in one of the
following ways :
Local TCP-IP through a hub/switch/crossover cable connection to the RJ45 connector
on the rear panel of the device.
Remote PPP through a modem (external/internal) direct dial-in connection to the
device. The external modem uses a rear panel RS232-2 connector and no VPN
access is required.
Maintenance
Note The user must set up a phone book entry/dial-up connection on the computer
with the appropriate phone number settings (refer to Appendix A).
7. When TCP-IP communications are properly established between the computer and the
device, open a URL (the default IP is directed to either
<http://192.168.1.11/tabindex.html> when the communication is through RJ45, or to
<http://10.38.0.2/tabindex.html> when the communication is through a modem).
Default user and password (mfgindex/tabindex):

Username: qualitrol
Password: qualcorp_techSupport10

http://<ip address of device>/tabindex_password
The following Web page is displayed.
Figure 7.7 System Information
Maintenance
8. Delete data from the TWS FL8.
Remark: It is recommended that the required data is downloaded before using iQ+
software.
Delete data with:

<http://192.168.1.11/cgi-bin/delrecs.cgi> (RJ45)
Or
<http://10.38.0.2/cgi-bin/delrecs.cgi> (modem)
Deleting data could take up to 15 minutes. The status of used memory can be seen
on the Diagnostic Information page on "http://device_ip/mfgindex.html". Once it
becomes "1%", we shall proceed with the next step.
9. Open a Web browser and enter the following URL:
<http://192.168.1.11/upgrade.html> (RJ45)
Or
<http://10.38.0.2/upgrade.html> (modem)
Default user and password for upgrade:

Username: qualitrol
Password: qualcorp_Upgrade10
http://<ip address of device>/upgrade_password
Figure 7.8 TWS FL8 Upgrade Page (Top)
Maintenance
Figure 7.9 TWS FL8 Upgrade Page (Bottom)

The TWS FL8 Upgrade page allows the user to upgrade the following:
CPU_Application
FPGA_FL
PICFirmWare
MMIFirmware
All of the above
The TWS FL8 Upgrade page also allows the user to upgrade the CPU-Kernel.
Note The CPU-Kernel should only be sent along with the latest CPU_Application.
Maintenance
10. For upgrading the firmware, perform the following steps:
a. Browse through the folder to locate the appropriate file.

The following table lists the files which can be upgraded for TWS FL8.
Application File to be Selected Check Box

CPU_Application initrd_CMxx.yy_Azz_with_crc.bin CPU_APP
FPGA_FL fpgafl_bank1.bin FPGA_FL
PIC pic_bank1.bin PIC
MMI mmi_bank1.bin MMI
b. After browsing the appropriate file, click the Send button. When the file is sent
successfully, a success message error_string=SUCCESS is displayed.
c. Repeat the previous procedure for all files to be upgraded in the device.
d. Scroll down the Web page and go to the TOGGLE_ALL section, click the respective
check box for which you have browsed and send files to device and then click
ToggleAll. This process will upgrade to all newly sent firmware version executables
or applications to the TWS FL8 device. After clicking ToggleAll, device is
automatically restarted.
e. Wait until the Healthy LED glows on the front panel of the device.
11. Only if necessary, for upgrading CPU-Kernel, click CPU-Kernels Browse button to
locate the ulmage_x.y_with_crc file, and then click the Send button. On receiving the
confirmation that the file is sent successfully, click the Toggle button for the CPU-kernel.
After clicking the Toggle button, device is automatically restarted. Wait until the Healthy
LED glows on the front panel of TWS FL8 device.
Note The user can toggle multiple applications by selecting the respective check
boxes provided in the TOGGLEALL section.
The subsequent pages show the updating processes involved after the device is successfully
upgraded. The user can then check for new versions through the System and Diagnostic
Information pages that are displayed.
If the user is using a modem, then the file transfer rate may be very slow. For example, the
CPU_Application may take up to 1 hour 45 minutes to upload the initrd_wthcrcPx.yz file, which is
at least 17 MB.
After the application file is sent, it needs to be toggled for the new file to take effect. If the person
upgrading the device has left the computer unattended for a long time, then the modem
connection might be dropped because of no activity on the line. The default modem inactive time
is 66 seconds.
Maintenance
In this situation, the modem connection must be re-established and the Toggle or ToggleAll button
must be invoked in order for the new version to take effect
7.3.2. During File Upload to TWS FL8

During the upload process, a progress bar is displayed that signifies that communications and re-
programming are in progress.
Note For the purpose of this manual, the URL shown here has a device with the IP
address 192.168.35.242.
When the file has been uploaded and stored into the TWS FL8 device, a success message
error_string=SUCCESS is displayed.
Figure 7.10 String Success
Maintenance
7.3.3. During CPU File Upload to TWS FL8

During the upload process, a progress bar is displayed that signifies that communications and re-
programming are in progress, similar to other file uploads.
Figure 7.11 Uploading the File
Maintenance
When re-programming is completed, a success message error_string=SUCCESS is displayed.
Figure 7.12 File upgrade status
7.3.4. System and Diagnostic Information

After the TWS FL8 device has restarted and the Healthy LED is on, open a Web page and enter
the URL as:
<http://board_ip address/mfgindex.html>
For example,
<http://192.168.33.114/mfgindex.html>
Maintenance
The following page is displayed.
Figure 7.13 - System Information

Ensure that the newly installed firmware versions displayed in the page are correct. Consult
Qualitrol for the latest versions.
Note The Firmware versions shown in the Figure 7.13 may have been updated
after this manual is written.
Maintenance
Click the Diagnostic Information tab and the following page is displayed. Ensure that the FPGA,
and PIC are programmed successfully, and Power Health, PIC, and CPU are working.
Figure 7.14 - Diagnostic Information Page (Top)
Maintenance
Figure 7.15 - Diagnostic Information Page (Bottom)
7.4. Troubleshooting
No part of the equipment is serviceable by the user. Always follow the safety
instructions and safety precautions mentioned in SAFETY SUMMARY.
Before attempting to troubleshoot a defective TWS FL8 device, contact Qualitrol
for help at csc@qualitrolcorp.com .
Maintenance
If any one or all three LEDs (Power healthy, Communication and Clock Sync) on the front panel of
the TWS FL8 device are not working, perform the steps mentioned in the following table for finding
the fault in the device and rectification.
Problem Symptom and Indication Potential Causes
Not all the LEDs are glowing. Power Supply not working
Or Motherboard not working
Only Power Healthy LED is OFF

and all other are working.
No Communication Only Communication modules not
COMMS LED is OFF and all working
other LEDs on the front panel are
working. Motherboard not working
Clock sync LED is OFF and all Not synchronized with GPS/RTC
other LEDs on the front panel are PPS (in master mode)
working.
Not synchronized with external
master (in slave mode)
Motherboard not working
Maintenance
7.4.1. Power Healthy LED on the Front Panel is Off

To find the possible causes for power supply failure, follow the steps mentioned in Figure 7.16:
Figure 7.16 Power Failure Causes
Maintenance
7.4.2. Communication LED is Off

To find the cause for the communication failure, follow the steps mentioned in Figure 7.17:
Figure 7.17 - Communication Failure
Maintenance
7.4.3. Clock Sync LED is Off

To find the cause for the clock synchronization failure, follow the steps mentioned in Figure 7.18:
Figure 7.18 - Clock Synchronization Failure
7.4.4. Test Points to Verify the Supply Voltages

Supply voltage test points are available on the motherboard. Test points are located between the
connector CN19 and the connector CN8 on the motherboard.
Maintenance
Shutdown Reset
switch switch
-12V
+5V
DGND
+12V
Figure 7.19 Location of Reset and Shutdown Switches and Supply Voltage Test Points on
the Motherboard
Appendix A Technical Specifications
Appendix A
Technical Specifications

The following table lists the technical specifications for the TWS FL8 device.
Category Parameters Specifications
General Processor 32 bit, 400 MHz processor
Operating System Monta Vista Linux with real time extensions
Status Indicators 9 LEDs (Healthy, Communication, clock sync,

battery, trigger, alarm and sensors( status))
Quality System Developed, designed, and manufactured

according to DN ISO 9001:2000.
Calibration Solid state design, no user adjustments.

Calibration check is performed once in 5
years.
Data Storage Compact Flash for record storage 4 GB

standard (8 GB/16 GB optional)
On-board Flash for firmware 128 MB
A RAM based temporary file system is used to
avoid excessive Flash use avoiding Flash
wear. The TWS FL8 firmware is designed to
optimize the write operations for every
memory block.
Power Supply Input Range Type 1: 90 264 VAC (88-300 VDC), 47 63
Hz
Type 2: 36 72 VDC
Maximum Load 85-90VA with all 4 FL Cards ( 8 Line Modules)
Typical Load 80-85VA with all 4 FL Cards ( 8 Line Modules)
Auxiliary Output DC output 12 VDC at 750 mA
Input Specification There are four FL Cards in TWS FL8 Unit.

Each FL card has two Line Modules (LM) and
each Line Module has three Analog Channels
and two Digital Channels. So there are eight
Line Modules, 24 Analog Channels, and 16
Digital Channels in fully loaded TWS FL8
devices.

The FL Cards are add-on cards & the TWS
FL8 unit can have following configuration.
- TWS FL8 with 1 FL card ( 2 Line Modules )
TWS FL8 with 4 FL card ( 8 Line Modules )
FL Card Analog Input Range Analog Inputs:

Inputs
The standard input for FL card will be derived
from the 125:1 (5A/40mA) linear couplers.
The range of the input voltage to be monitored
is 0.05mA to 2mA.
Digital Inputs:
Nominal Input voltage is 48V, 110V & 220V, to
a maximum input of 250V.
- Less than 30V - No activation
- (30-35) V - Undefined
- Above 35V - Activation
ADC Specification 12-Bit Resolution High speed ADC is used.

Sampling rate ( user configurable )
20MHz, 10MHz, 5MHz, 2.5MHz & 1.25MHz
Alarm Notification 4 form A/B relay outputs (configurable -

normally closed or normally open at factory)
Relay 1 indicates system Healthy.
Relay 2, 3 are user configurable for PQ
parameters.
Relay 4 is user configurable for either
temperature under/over temperature
threshold.
Resistive load: 250 VAC 5 A, 110 VDC 0.5 A,
48 VDC 1.0 A
Options Time GPS (accuracy 300 ns between time

Synchronization masters)
IRIG-B modulated and level shift (accuracy
2 ms between time masters)
Time slave (synchronized through 1 PPS)

Mechanical Dimensions H x W x D: 132.5 mm 487 mm x 362.2 mm for
TWS FL8 device
Weight 11 kg without packaging.

13 kg with packaging.
Housing/Mounting Metal 19 rack mounted cabinet
Communication Ports Four Serial (of these, three are RS232 ports
with male DB-9 connectors, and one is RS485
with 1*5 pin connector.)
Internal PSTN (V.90) modem (optional on
RS232-2)
Two 100 Mb Ethernet ports with RJ45
connectors
Optional Fiber optic Ethernet (on rear port)
Differential (RS485 levels) for 1 PPS for time
synchronization
Fiber optic 1 PPS output (master)/input (slave)
TCP/IP, Modbus, IEC 60870-5, IEC 61850,
Protocols
GSM, GPRS
Environmental Temperature Operating: -5C to 45C (23F to 122F)
Cold start is not possible below 0C (32F)
Storage: -30C to +70C (-22F to +158F)
Humidity 0 to 95% non-condensing
Enclosure IP 40 according to IEC 60529
Others RoHS compliant
EMC Standards
Standards References/Test criteria
IEC 60255-22-6 / IEC 61000-4-6 Tested to IEC 61000-4-6, Tested for 10 V,
Conducted Susceptibility (CS) 150 kHz 80 MHz
Tested on Power-line, RS232 -1, Ethernet
port 1, FL - Analog inputs (V & I), FL - Digital
Inputs, and Relay Outputs.
Passed with : Criteria A
IEC 60255-22-4 / IEC 61000-4-4 & Tested to IEC 61000-4-4, Tested for : 4 kV,
ANSI C37.90.1.2002 Electrical fast 5KHz/100KHz/2.5KHz
transient burst test
Tested on Power-line, RS232-1, Ethernet
port 1, FL - Analog inputs (V & I), FL - Digital
Inputs, Relay outputs.
IEC 60255-22-3 / IEC 61000-4-3 Tested to IEC 61000-4-3, Tested for 10

Radiated Susceptibility (RS) V/m, 80 MHz 1000 MHz
Tested on Complete Device
EN 55011 Conducted Emission (CE) Tested to CISPR-11 Tested for 79 dB (V)

quasi-peak and 66 dB (V) average at 0.15
MHz to 0.5 MHz
73 dB (V) quasi-peak and 60 dB (V)
average at 0.50 MHz to 5 MHz
73 dB (V) quasi-peak and 60 dB (V)
average at 0.50 MHz to 30 MHz
Tested on : Complete Device
Passed & the Emission levels are within the
Specified limits of CISPR 11
EN 55011 Radiated Emission (CE) Tested to CISPR-11 Tested for 40 dB

(V/m) quasi-peak from 30 MHz to 230 MHz
at 10 m (32.8 ft)
47 dB (V/m) quasi-peak from 230 MHz to
1000 MHz at 10 m (32.8 ft)
Passed & the Emission levels are within the
Specified limits of CISPR 11

IEC 61000-4-8 Power frequency Tested to IEC 61000-4-8 ,Tested for 30
magnetic field test A/m, x, y, z axis
IEC 60255-22-1 / IEC 61000-4-12 & Tested to IEC 61000-4-12 ,Tested for 2.5
ANSI C37.90.1.2002 Damped kV Common Mode, 1 kV Differential Mode,
oscillatory wave disturbance tests 1MHz
Tested on : Power-line, FL - Digital, FL -
Analog inputs, Relay
IEC 61000-4-12 Ring wave test Tested to IEC 61000-4-12, Tested for Level
3,+/- 2 kV Common Mode, 1 kV Differential
Mode, 100KHz
Tested on Power-line, FL - Digital, FL -
IEC 61000-4-5 Surge test Tested to IEC 61000-4-5 ,Tested for Class
4, I/O 4 KV Common Mode, 2KV Differential
Mode
Tested on Power-line, FL - Digital, FL -
ENV 50204 Immunity to EMI from Tested to ENV 50204, Tested for level 3, 10
digital radio telephones V/m, @900 MHz +/- 5 MHz, @1890 MHz +/-
10 MHz keyed at frequency 200 Hz +/- 1%,
50% duty cycle [2.5 ms ON 2.5 ms OFF].
IEC 60255-5 Clause 6 Dielectric test Tested to 2.5kV for 1 minute, Tested for 2.5
kV for Power-port, FL - Digital inputs, Relay,
ANSI IEEE C37.90 1989 SWC
and 1 kV for isolated communication ports
dielectric tests
(RS232 & RS485).
No flashover or breakdown occurred.
IEC 60255-5 Clause 7 Insulation test Tested to apply 500 VDC with respect to
Earth.
Tested on Power port, FL - Digital inputs

and Relay.
The impedance was greater than
100Mohms.
IEC 60255-5 Clause 8 Impulse voltage Tested to +/-5 kV, 0.5 J.

test
Tested on: Power-line, FL - digital inputs
and Relay.
No flashover or breakdown occurred.
IEC 61000-4-11 Supply Voltage Dips Tested to Dips-Class-3,Interruptions-Class-3

and Interruptions
Tested on Power-port.
Passed with : Dips - Criteria A
Interruptions - Criteria B
IEC 60255-22-2 / IEC 61000-4-2 Tested to IEC 61000-4-2,Tested for : 8 kV

Electro static discharge tests contact, 15 kV air
Tested on Enclosure, all accessible I/O lines
and ports.
IEC 60255-6/EN60255-6 Supply Tested for PSU Tested for DC range 80VDC
voltage limit test to 300VDC
IEC 60068-2-1/EN60068-2-1 Cold tests Tested for Cold Storage -45C (49F) for 96
hours
Cold Operating: -5C (23F) for 16 hours
IEC 60068-2-6 Vibration tests Tested for 2g Acceleration, frequency is 10-

150 HZ, 20 sweep cycles in each of three
mutually perpendicular planes (x, y, and z).
IEC 60068-2 Cyclic Temperature Test Tested for Cyclic Temperature test for a 5
cycles. Each cycle has 3 hours for 70
degrees & 3 hours for -5 degree in Power off
Condition
Appendix B TWS FL8 Functions
Appendix B
TWS FL8 Functions

FL Manual Trigger
Manual trigger is used to test the basic functionality of the TWS FL8 device.
Record will be formed based on current input status. This can be initiated using iQ+.
FL External Trigger
If there is any fault on the input line a record will be formed on the corresponding line module and
it is identified as external trigger.
Figure B.1 FL External Triggers
FL Diagnostic Trigger
Diagnostic trigger can be initiated from iQ+ software and is used to test the hardware circuitry.
Initiation of a diagnostic trigger will generate two records in each line module, one for negative
pulse and one for positive pulse.
Figure B.2 FL Diagnostic Trigger
FL Digital Inputs
FL digital inputs are used to identify the priority of the external trigger occurred. When there is a
digital input transition to alarm state from normal state in a line module soon after the fault trigger
occurrence on the same line module within the configured time window, then that particular record
(as well as log entry) for fault trigger is marked as HIGH priority, else the record is marked as
LOW priority.
Handling Time Changes

When the user is setting the device time, it can be shifted forward or backward from the current
set time using the iQ+ software.
Forward Time Shift

If the user has set the device time ahead of the current device time, then the situation is referred
to as a Forward time shift. Forward time shift has no effect on recording.
Backward Time Shift

Backward time shift has no effect on recording.
1. Save all available data from the device to the iQ+ server.
2. Access the Causeway Web server software by entering the following URL:
<http://192.168.35.242/cgi-bin/delrecs.cgi>
Note 192.168.35.242 is the device IP address.
Figure B.3 Deleting Records
Note The user may be prompted for a password to access this Web page.
3. Select all records by clicking on the individual check boxes and then click the
Delete selected data from system button.
Appendix C Recording Data Rates and Memory Consumption
Rates
Appendix C
Recording Data Rates and Memory
Consumption Rates
Appendix C Recording Data Rates and Memory Consumption
Rates
Appendix C Recording Data Rates and Memory

Consumption Rates
The following table lists the data rates and memory consumption rates.
Compact Flash Size

4
in GB
Default Memory Assigned
DATA LOGS CONFIGURATION Firmware
3.5 GB 20 MB 2 MB 256 MB
Memory Number of Sampling Total

Assigned (in line Rate (in number of
terms of GB) modules terms of records in
MHz) each line
module
3.5 8 20 273
3.5 8 10 546
3.5 8 5 1091
3.5 8 2.5 2178
3.5 8 1.25 4338
Appendix D License Information
Appendix D
License Information

If the user wants to request for a license update, Qualitrol must be provided with access to the
device. Else, Qualitrol must be provided with the <serial_number.req> file generated by the
device. As a result, Qualitrol is able to update the existing license details as requested.
For instructions to generate the <serial_number.req> file, refer to Modifying an Existing License.
When the TCP-IP communication is established between the device and the computer, open a
Web browser and enter the URL in the following format:
<http://IP_Address/mfgindex.html>
For the purpose of this manual, the URL shown here has a device with the IP
Note
address 192.168.1.11. Therefore, the URL should be similar to the following
sample URL:
<http://192.168.1.11/mfgindex.html>
On the Web page by default, it displays System Information. The software will prompt the user to
modify the existing license. The instructions in the next section describe how to modify a TWS FL8
license.
Modifying an Existing License

If a license already exists, then the System Information Web page is displayed. The Web page
shows the existing license information, such as the device serial number, customer ID, order
number, features included in the current license, and so on.
To modify an existing license:
1. Click Modify License.
Figure D.1 System Information
2. On the System Information page, enter the customer ID and order number. This
information is provided by the sales representative.
Figure D.2 Modifying the License Request

3. Click Modify Request.
4. A new <serial_number.req> file is generated on the devices file system. Save the
<serial_number.req> file on the computer and send it to the appropriate sales
representative or the Qualitrol licensing authority.
Figure D.3 Saving the Serial Number

5. The licensing authority sends back a <serial_number.xml> file. Save this file on the
computer.
6. Using the Browse button, locate the file, and click Install license.
Figure D.4 Installing the License
7. The license is transferred to the TWS FL8 devices file system and the device restarts.
To return to the main System Information page, refresh the Web page.
Figure D.5 Completing the License Installation
Appendix E Battery Replacement Procedure
Appendix E
Battery Replacement Procedure

Battery Replacement Procedure for a TWS FL8 Device
To replace a battery, the following steps must be performed:
1. Switch off the main power supply to the TWS FL8 device and disconnect the input power
cord.
2. Switch off the battery by using the switch provided on the UPS board.
3. Separate the UPS module from the device by removing the screws on the rear panel.
4. Remove the earth wire from TB1.
Figure E.1 Screws to be Removed
5. Isolate the old battery by disconnecting the CN5 connector.
Figure E.2 CN5 Connector
6. Uninstall the old battery by removing the screws.

7. Install the new battery.
8. Connect the new battery to the CN5 connector.
Figure E.3 Rajamane Battery
9. Reconnect the UPS/power supply module to the TWS FL8 device.

10. Connect the power cord and switch on the TWS FL8 device.
Appendix F On-Board LED Functionalities and CPU MMI Modes
Appendix F
On-Board LED Functionalities and CPU MMI Modes
Appendix F On-Board LED Functionalities and CPU

MMI Modes
LED Functions on the Motherboard
All LEDs are red in color.
Figure F.1 LEDs on the Motherboard
The following table describes the LEDs on the motherboard.

LED Description
D14 Reset status for the TWS FL8 device. ON indicates that Power On
RESET has occurred and is still in reset condition.
D21 Debug LED (Reserved for future use)
D22 CPU_DONE indicates that FPGA is programmed.
D704 Debug LED for PIC
D35 Voltage indicator for -12 V
D37 Voltage indicator for +12 V
D36 Voltage indicator for +5 V
D34
D1 Voltage indicator for +3.3 V
D38 Voltage indicator for +ISO+3.3 V
CPU MMI Modes

Based on the Dip switch position, the MMI mode is decided. There are two Dip switch positions,
one indicates the CPU mode (1 CPU mode or 2 CPU mode), and the other indicates if the LCD is
available. The 2 CPU modes always have the LCD.
Purpose Dip Switch Position Selection Description Default

Designation Selection
Identify S1-1 W/ LCD MMI with Selection W/o LCD
the LCD LCD for LCD
mode W/o LCD MMI without present/

LCD absent.
Identify S1-2 1 CPU 1 CPU with Selection of 1 CPU
the CPU LCD CPU mode
mode 2 CPU 2 CPU with
LCD
In the 1 CPU mode, the CPU must be connected to the first UART port (refer to legend J1 on MMI
card).
Figure F.2 MMI Card Dip Switch (S1) and First UART Port (J1)
Appendix G On-Board Jumper Settings
Appendix G
On-Board Jumper Settings

The following table lists the CPU/mother board jumper settings.
CPU/Mother Board Jumper Table

Sl Purpose Jumper Position Selection Description Default
No. Legend jumper
setting
1 IRIG-OUT CN712 1-2 +12V IRIG- AM Modulator 2-3

Voltage OUT Signal For operates on
Selection Modulated IRIG +12V logic level
output and TTL on +5V
2-3 +5V IRIG-OUT
Signal For TTL
IRIG output
2 IRIG- JPR1 1-2 IRIGB AM-IN Selection of 2-3
IN/IRIG- 2-3 100 V PPS IN IRIG-IN/OUT
OUT Format. Either
4-5 IRIGB TTL IN
Format AM or
Selection 6-7 IRIGB AM-OUT TTL/PPM/PPH
7-8 IRIGB TTL for IRIG-IN
IRIG OUT format
Reference 1-2 ISO-GND(IRIG- Selection of 1-2
Selection JPR2 IN) reference for
IRIG-IN/OUT.
For IRIGB AM-IN,

100 V PPS IN,
2-3 DGND(IRIGB- IRIGB TTL IN,
OUT) selected ISO-
GND ( JPR2 :1-2
--> ISOGND ) &
for IRIGB AM-
OUT & IRIGB
TTL OUT select
DGND ( JPR2 :2-
3--> DGND )
4 IRIG-TTL JPR701 1-2 PPM/PPH/TTL Selection of 1-2
or IRIG-
PPM/PPH TTL/PPM/PPH
Selection Source.
5 GPS PPS J704 Mount GPS PPS Used for GPS- Unmount
Debug TEST PPS debugging
CPU/Mother Board Jumper Table

Sl Purpose Jumper Position Selection Description Default
No. Legend jumper
setting
Selection Unmount Normal

operation
6 WDI J6 1-2 WDI Enabled WDI Control 1-2
Enable 2-3 WDI Disabled Jumper
Jumper
7 IRIG-J or CN18 1-2 COM 3 Port is PIC or CPU as 1-2
User-Port configured as COM3 Port
Selection CPU COM Port
2-3 COM 3 Port is

configured as
PIC COM
PORT for IRIG-
J IN
8 Ethernet CN3 1-2 TX is selected Fiber or Copper 1-2

FX or TX 2-3 FX is selected Ethernet Port
Selection selection
JP1 Mount FX is selected Disable Auto Unmount
Unmount TX is selected Negotiation in FX
mode
9 Console Main Mount Console To select the Mount
Output enabled COM port as
Selection Unmount Console console port
disabled
10 Differential J2 Mount Enable the For enabling or Unmount
PPS differential disabling
termination differential
Unmount Disable the termination for
differential RS485 signals
Termination
11 Isolated J3 Mount Enable the For enabling or Unmount
RS485 differential disabling
termination differential
Unmount Disable the termination for
differential RS485 signals
Termination
12 GPS JPR3 1-2 5V For antenna 1-2
Antenna 2-3 3.3V voltage input
Voltage
Select
The following table lists the relay jumper settings.
Relay Jumper Table

Jumper Default
Sl No. Purpose Position Description
Legend Selection
1 Relay Contact 1 J1 Mount Output
J2 Unmount contacts
open
J1 Unmount Output Unmount
J2 Mount contacts Mount
closed
J4 Unmount contacts
open
closed
J6 Unmount contacts
open
closed
J8 Unmount contacts
open
closed
Appendix H Line Modules
Appendix H
Line Modules

TWS FL8 is can be used monitor eight line modules. It can monitor 2, 4, 6 or 8 line modules
depending upon the number of FL (fault location) cards mounted. Mounting a single FL card has a
capability of monitoring two line modules. The following screen shots show the different cards
mounted.
Figure H.1 Mounting FL2 Card
References
References
References
References
For Configuration forms, refer to the document 36-8218-xx.
For details of error log messages/codes and their meanings, refer to the document
40-08576-01.
About QUALITROL

QUALITROL Field Services

QUALITROL provides on-site commissioning/ start-up and comprehensive maintenance contracts to all customers
worldwide. To further improve reliability, an extended warranty is available on selected products commissioned by

QUALITROL .

QUALITROL Educational Services

QUALITROL professional training (designed to achieve hands-on performance based objectives) prepares operations,

maintenance, and engineering personnel to install, test, configure, operate and maintain QUALITROL products.

QUALITROL Accelerated Delivery

QUALITROL provides accelerated delivery on many products and services including replacements, spare parts and
repairs.

About QUALITROL

QUALITROL manufactures substation and transformer monitoring and protection devices used by electric utilities and
manufacturing companies. It is the global leader in sales and installations of transformer asset protection equipment, fault

recorders and fault locators. Established in 1945, QUALITROL produces thousands of different types of products on
demand, each customized to customers' unique requirements.

2010 QUALITROL Company LLC, an ISO 9001 system certified company. All rights reserved. Information subject to change without notice.
All trademarks are properties of their respective companies, as noted herein. 40-08591-01

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User Manual

1. About This Manual ............................................................................... 2

3.7.2. Reset Switch ................................................................................................... 32

5.1. Functionality/Service ..................................................................................61

Contents iii www.qualitrolcorp.com

Appendix A Technical Specifications................................................... 141

1. About This Manual

1.1. Symbols Used

Risk of electrical shock

Potentially dangerous situation

1.2. Abbreviations and Acronyms

2. Overview of TWS FL8

2.2. Standard Equipment

Figure 2.1a TWS FL8 Chassis

Figure 2.1b TWS FL8 Firmware

2.3. Typical Scheme

Figure 2.2 Typical Scheme

2.4. TWS FL8 License

2.5. Safety Summary

Remember the following:

Installation, operation, and maintenance of the equipment must be performed only by

2.6. Customer Helpline Information

3. Components and Specifications

3.1. Environmental Requirements

3.2. Power Supply and Earthing

3.2.1. Standard Power Supply

Maximum Load 85-90VA with all 4 FL Cards (8 Line Modules)

Typical Load 80-85VA with all 4 FL Cards (8 Line Modules)

Note Wire gauge to be used at TB1: 1222 AWG.

Figure 3.1 Standard Power Supply Terminal

Details 4S2P5SWB-SB NH2054

Manufacturer Rajamane Telectric INSPIRED ENERGY, Inc.

Part Number/Reference 4S2P5SWB-SB-002 NH2054HD24

Rated Capacity (minimum) 3.9 Ah with 0.5 C 4.8 Ah

Charging 0C +45C, 0C to 45C, <= 80% RH

Discharging -20C ~ +60C, -10C to 50C, <= 80% RH

Short Period less than 1 -20C ~ +45C, 20C ~ +60C<= 80% RH

Long Period more than 3 10C ~ +30C,

Recommended storage +15C ~ +35C, <21C

Notes If the battery is not The shelf life of the

3.2.3. +12 VDC External Power Supply

Figure 3.2 - External Power Supply

Note Wire gauge to be used at TB2: 12-24 AWG.

3.3. Physical Details

Devices Physical Dimensions Net Weight (Approx.) Gross Weight (Approx.)

3.4. Front Panel Description

2 LCD Display Used to display information related to the

3 Keypad Used to navigate.

Figure 3.3 TWS FL8 Front View

3.5. Rear Panel Description

Figure 3.4 TWS FL8 Rear View

Figure 3.4a AC/DC Power Input Details

Figure 3.4a shows the AC and DC power input details.

Figure 3.4b FL-8 and FL4 Panels

Figure 3.4c FL-6 and FL-2 Panels

3.6. Standard MMI

3.6.1. MMI CPU Mode

3.6.2. MMI LCD Navigation

The RESET key is reserved for future use.