620 series

Relion® Protection and Control

620 series
Operation Manual
 Document ID: 1MAC306723-MB
Issued: 10/09/2015
Revision: C
Product version: 1.2

© Copyright 2015 ABB. All rights reserved.

Copyright

This document and parts thereof must not be reproduced or copied without written
permission from ABB, and the contents thereof must not be imparted to a third party, nor
used for any unauthorized purpose.
The software or hardware described in this document is furnished under a license and may
be used, copied, or disclosed only in accordance with the terms of such license.

Trademarks
ABB and Relion are registered trademarks of ABB Group. All other brand or product
names mentioned in this document may be trademarks or registered trademarks of their
respective holders.

Warranty
Please inquire about the terms of warranty from your nearest ABB representative.
ABB Inc.
Distribution Automation
4300 Coral Ridge Drive
Coral Springs, FL 33065, USA
Toll-free: 1 (800) 523-2620
Phone: +1 954-752-6700
Fax: +1 954 345-5329
http://www.abb.com/substationautomation
Disclaimer

The data, examples and diagrams in this manual are included solely for the concept or
product description and are not to be deemed as a statement of guaranteed properties. All
persons responsible for applying the equipment addressed in this manual must satisfy
themselves that each intended application is suitable and acceptable, including that any
applicable safety or other operational requirements are complied with. In particular, any
risks in applications where a system failure and/or product failure would create a risk for
harm to property or persons (including but not limited to personal injuries or death) shall
be the sole responsibility of the person or entity applying the equipment, and those so
responsible are hereby requested to ensure that all measures are taken to exclude or
mitigate such risks.
This document has been carefully checked by ABB but deviations cannot be completely
ruled out. In case any errors are detected, the reader is kindly requested to notify the
manufacturer. Other than under explicit contractual commitments, in no event shall ABB
be responsible or liable for any loss or damage resulting from the use of this manual or the
application of the equipment.
Conformity

This product complies with the directive of the Council of the European Communities on
the approximation of the laws of the Member States relating to electromagnetic
compatibility (EMC Directive 2004/108/EC) and concerning electrical equipment for use
within specified voltage limits (Low-voltage directive 2006/95/EC). This conformity is
the result of tests conducted by ABB in accordance with the product standards EN 50263
and EN 60255-26 for the EMC directive, and with the product standards EN 60255-6 and
EN 60255-27 for the low voltage directive. The relay is designed in accordance with the
international standards of the IEC 60255 series and ANSI C37.90.
Safety Information

Dangerous voltages can occur on the connectors, even though the auxiliary
voltage has been disconnected.

Non-observance can result in death, personal injury or substantial property

damage.

Only a competent electrician is allowed to carry out the electrical

installation.

National and local electrical safety regulations must always be followed.

The frame of the relay has to be carefully grounded.

When the plug-in unit has been detached from the case, do not touch the
inside of the case. The relay case internals may contain high voltage
potential and touching these may cause personal injury.

The relay contains components which are sensitive to electrostatic

discharge. Unnecessary touching of electronic components must therefore
be avoided.

Whenever changes are made in the relay, measures should be taken to

avoid inadvertent tripping.
1MAC306723-MB C Section

Table of contents

Section 1 Introduction........................................................................... 7
This manual.............................................................................................. 7
Intended audience.................................................................................... 7
Product documentation ............................................................................ 8
Product documentation set ................................................................. 8
Document revision history................................................................... 9
Related documentation ....................................................................... 9
Symbols and conventions ........................................................................ 9
Safety indication symbols.................................................................... 9
Manual conventions .......................................................................... 10
Functions, codes and symbols.......................................................... 11

Section 2 Environmental aspects ....................................................... 15

Sustainable development ....................................................................... 15
Disposing of the relay............................................................................. 15

Section 3 620 series overview............................................................ 17

Overview ................................................................................................ 17
Local HMI ............................................................................................... 18
LCD ................................................................................................... 18
LEDs ................................................................................................. 20
Keypad .............................................................................................. 20
Local HMI functionality ...................................................................... 22
Protection and alarm indication.................................................... 22
Parameter management .............................................................. 23
Front communication ................................................................... 24
Web HMI ................................................................................................ 24
Command buttons............................................................................. 25
Authorization .......................................................................................... 26
Communication ...................................................................................... 27
PCM600 tool........................................................................................... 28
Connectivity packages ...................................................................... 28
PCM600 and relay connectivity package version ............................. 28

Section 4 Using the HMI..................................................................... 29

Using the local HMI ................................................................................ 29
Logging in.......................................................................................... 29
Logging out ....................................................................................... 30
Turning the display backlight on........................................................ 31
Selecting local or remote use............................................................ 31

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Identifying the device......................................................................... 32

Adjusting the display contrast............................................................ 32
Changing the local HMI language ..................................................... 33
Changing display symbols................................................................. 33
Navigating in the menu...................................................................... 34
Menu structure ............................................................................. 34
Scrolling the LCD view ................................................................. 34
Changing the default view ............................................................ 35
Browsing setting values..................................................................... 35
Editing values .................................................................................... 36
Editing numerical values .............................................................. 37
Editing string values ..................................................................... 38
Editing enumerated values........................................................... 39
Committing settings........................................................................... 39
Clearing and acknowledging ............................................................. 40
Using the local HMI help ................................................................... 41
Using the Web HMI ................................................................................ 41
Logging in.......................................................................................... 41
Logging out........................................................................................ 42
Identifying the device......................................................................... 44
Navigating in the menu...................................................................... 45
Menu structure ............................................................................. 46
Showing all parameters..................................................................... 47
Editing values .................................................................................... 48
Committing settings........................................................................... 50
Clearing and acknowledging ............................................................. 51
Selecting the programmable-LED view ............................................. 53
Selecting the event view.................................................................... 54
Selecting the disturbance records view............................................. 55
Uploading disturbance records .................................................... 56
Triggering the disturbance recorder manually.............................. 57
Deleting disturbance records ....................................................... 58
Selecting phasor diagrams................................................................ 59
Using the Web HMI help ................................................................... 63

Section 5 Relay Operation.................................................................. 65

Normal operation .................................................................................... 65
Disturbance identification ....................................................................... 65
DFR record triggering........................................................................ 66
DFR record analysis.......................................................................... 66
DFR reports....................................................................................... 66
Internal relay errors ........................................................................... 66
Relay parametrization............................................................................. 67

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Relay settings for relay functionality.................................................. 67

Relay settings for different operating conditions ............................... 67

Section 6 Operating Procedures ........................................................ 69

Monitoring............................................................................................... 69
Indications ......................................................................................... 69
Monitoring indication messages................................................... 69
Monitoring an internal relay fault.................................................. 69
Monitoring condition monitoring data ........................................... 70
Measured and calculated values....................................................... 70
Measured values.......................................................................... 70
Using the local HMI for monitoring ............................................... 71
Recorded data................................................................................... 71
Creating digital fault records ........................................................ 72
Monitoring DFR data .................................................................... 72
Controlling and uploading DFR recorder data ............................. 73
Monitoring fault records ............................................................... 73
Monitoring events......................................................................... 74
Remote monitoring............................................................................ 74
Operating the relay remotely........................................................ 74
Controlling .............................................................................................. 75
Controlling circuit breakers or disconnectors .................................... 75
Resetting relay ....................................................................................... 76
Clearing and acknowledging via the local HMI ................................. 76
Changing the relay functionality ............................................................. 77
Defining the setting group ................................................................. 77
Activating a setting group............................................................. 77
Browsing and editing setting group values .................................. 78
Activating LEDs................................................................................. 80

Section 7 Troubleshooting.................................................................. 81
Fault tracing............................................................................................ 81
Identifying hardware errors ............................................................... 81
Identifying runtime errors .................................................................. 81
Identifying communication errors ...................................................... 81
Checking the communication link operation ................................ 81
Checking the time synchronization .............................................. 82
Running the display test.................................................................... 82
Indication messages............................................................................... 82
Internal faults..................................................................................... 82
Warnings ........................................................................................... 85
LED and display messages............................................................... 88
Correction procedures............................................................................ 88

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Section 1MAC306723-MB C

Rebooting the software ..................................................................... 88

Restoring factory settings.................................................................. 88
Setting the password......................................................................... 88
Identifying relay application problems ............................................... 89
Inspecting the wiring .................................................................... 89
Sample data interruptions ............................................................ 89

Section 8 Commissioning ................................................................... 91

Commissioning checklist ........................................................................ 91
Checking the installation......................................................................... 91
Checking the power supply ............................................................... 91
Checking CT circuits ......................................................................... 91
Checking VT circuits.......................................................................... 92
Checking binary input and output circuits.......................................... 93
Binary input circuits ...................................................................... 93
Binary output circuits.................................................................... 93
Checking optical connections............................................................ 93
Authorizations......................................................................................... 93
User authorization ............................................................................. 93
Using PCM600 ....................................................................................... 94
Setting the communication between relays and PCM600................. 94
Communication options................................................................ 94
Setting communication parameters.............................................. 95
Setting relay and communication ......................................................... 100
Communication settings .................................................................. 100
Serial communication ports and drivers ..................................... 100
Serial link diagnostics and monitoring........................................ 101
Defining Ethernet port settings................................................... 103
Defining serial port settings........................................................ 104
Setting communication protocol parameters.............................. 104
Connecting jumper connectors .................................................. 104
Communication checklist ........................................................... 104
Setting the local HMI ....................................................................... 105
Changing the local HMI language .............................................. 105
Adjusting the display contrast .................................................... 105
Changing display symbols ......................................................... 105
Changing the default view .......................................................... 106
Setting the system time and time synchronization ..................... 106
Setting relay parameters ................................................................. 107
Defining settings groups............................................................. 107
Relay parametrization ................................................................ 110
Defining DFR channel settings................................................... 111
Configuring analog inputs .......................................................... 111

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Testing relay operation......................................................................... 111

Selecting the test mode................................................................... 111
Testing the digital I/O interface ....................................................... 112
Testing functions ............................................................................. 112
Selecting the internal fault test ........................................................ 113
ABB Product Data Registration ............................................................ 113

Section 9 Glossary ........................................................................... 115

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1MAC306723-MB C Section 1
Introduction

Section 1 Introduction

1.1 This manual

The operation manual contains instructions on how to operate the relay once it has been
commissioned. The manual provides instructions for monitoring, controlling and setting
the relay. The manual also describes how to identify disturbances and how to view
calculated and measured network data to determine the cause of a fault.

1.2 Intended audience

This manual addresses the operator, who operates the relay on a daily basis.
The operator must be trained in and have a basic knowledge of how to operate protection
equipment. The manual contains terms and expressions commonly used to describe this
kind of equipment.

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Introduction

1.3 Product documentation

1.3.1 Product documentation set

Deinstalling & Disposal

Planning & purchase

Decommissioning
Commissioning

Maintenance
Engineering

Operation
Installing
Application manual
Engineering manual
Installation manual

Operation manual
Technical manual
Communication Protocol
manual
Protocol Points List
manual

Figure 1: The intended use of manuals in different lifecycles

The engineering manual contains instructions on how to engineer the relays using the
different tools in PCM600. The manual provides instructions on how to set up a PCM600
project and insert relays to the project structure. The manual also recommends a sequence
for engineering of protection and control functions, LHMI functions as well as
communication engineering for IEC 61850 and DNP3.
The installation manual contains instructions on how to install the relay. The manual
provides procedures for mechanical and electrical installation. The chapters are organized
in chronological order in which the relay should be installed.
The operation manual contains instructions on how to operate the relay once it has been
commissioned. The manual provides instructions for monitoring, controlling and setting
the relay. The manual also describes how to identify disturbances and how to view
calculated and measured power grid data to determine the cause of a fault.
The application manual contains application descriptions and setting guidelines sorted per
function. The manual can be used to find out when and for what purpose a typical
protection function can be used. The manual can also be used when calculating settings.
The technical manual contains application and functionality descriptions and lists function
blocks, logic diagrams, input and output signals, setting parameters and technical data

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Introduction

sorted per function. The manual can be used as a technical reference during the
engineering phase, installation and commissioning phase, and during normal service.
The communication protocol manual describes a communication protocol supported by
the relay. The manual concentrates on vendor-specific implementations. The point list
manual describes the outlook and properties of the data points specific to the relay. The
manual should be used in conjunction with the corresponding communication protocol
manual.

1.3.2 Document revision history

Document revision/date Product series version History

A/11/23/2010 1.0 First release
B/10/31/2011 1.1 Content updated to correspond to the
product series version
C/10/09/2015 1.2 Content updated

Download the latest documents from the ABB web site

http://www.abb.com/substationautomation.

1.3.3 Related documentation

Product series- and product-specific manuals can be downloaded from the ABB web site
http://www.abb.com/substationautomation.

1.4 Symbols and conventions

1.4.1 Safety indication symbols

The electrical warning icon indicates the presence of a hazard which could
result in electrical shock.

The warning icon indicates the presence of a hazard which could result in
personal injury.

The caution icon indicates important information or warning related to the

concept discussed in the text. It might indicate the presence of a hazard
which could result in corruption of software or damage to equipment or
property.

The information icon alerts the reader to important facts and conditions.

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Introduction

The tip icon indicates advice on, for example, how to design your project
or how to use a certain function.

Although warning hazards are related to personal injury, it should be understood that
operation of damaged equipment could, under certain operational conditions, result in
degraded process performance leading to personal injury or death. Therefore, comply fully
with all warning and caution notices.

1.4.2 Manual conventions

Conventions used in relay manuals. A particular convention may not be used in this
manual.
• Abbreviations and acronyms in this manual are spelled out in the glossary. The
glossary also contains definitions of important terms.
• Push button navigation in the LHMI menu structure is presented by using the push
button icons, for example:
To navigate between the options, use and .
• HMI menu paths are presented in bold, for example:
Select Main menu > Settings.
• Menu names are shown in bold in WHMI, for example:
Click Information in the WHMI menu structure.
• LHMI messages are shown in Courier font, for example:
To save the changes in non-volatile memory, select Yes and press .
• Parameter names are shown in italics, for example:
The function can be enabled and disabled with the Operation setting.
• Parameter values are indicated with quotation marks, for example:
The corresponding parameter values are "Enabled" and "Disabled".
• Relay input/output messages and monitored data names are shown in Courier font, for
example:
When the function picks up, the PICKUP output is set to TRUE.
• Dimensions are provided both in inches and mm. If it is not specifically mentioned
then the dimension is in mm.
• Analog inputs to protection functions are shown in the technical manual for clarity
however these inputs and connections do not appear in the application logic. The
connection of these analog signals is fixed internally to the corresponding function
blocks and cannot be altered by users

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Introduction

Function block

51P-1/2
I_A Trip SPHLPTOC1(51P;3
I_B Trip_A BLOCK TRIP
Trip_B ENA_MULT PICKUP
I_C TRIP_A
Trip_C TRIP_B
Block TRIP_C
PICKUP PICKUP_A
ENA_MULT PICKUP_A PICKUP_B
PICKUP_C
PICKUP_B
PICKUP_C

Figure 2: Function block as it appears in the manual (left) and in the ACT (right)

1.4.3 Functions, codes and symbols

All available functions are listed in the table. All of them may not be applicable to all
products.

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Introduction

Table 1: RER620 functions, codes and symbols

Function IEC61850 IEC60617 ANSI/C37.2
Current Protection
Single-phase non-directional time overcurrent protection with 1-ph trip option, low stage SPHLPTOC1 3I>(1) 51P
Single-phase non-directional time overcurrent protection with 1-ph trip option, high stage 1 SPHLPTOC2 3I>(2) 50P-1
Single-phase non-directional time overcurrent protection with 1-ph trip option, high stage 2 SPHHPTOC1 3I>>(1) 50P-2
Single-phase non-directional instantaneous overcurrent protection with 1-ph trip option SPHIPTOC1 3I>>>(1) 50P-3
Non-directional time overcurrent ground-fault protection, low stage XEFLPTOC2 Io>(2) 51N
Non-directional time overcurrent ground-fault protection, high stage 1 XEFLPTOC3 Io>(3) 50N-1
Non-directional time overcurrent ground-fault protection, high stage 2 XEFHPTOC3 Io>>(3) 50N-2
Non-directional instantaneous time overcurrent ground-fault protection XEFIPTOC2 Io>>>(2) 50N-3
Non-directional sensitive earth-fault EFLPTOC3 Io>(3) 50SEF
Negative sequence non-directional time overcurrent protection 1 XNSPTOC1 I2 >(1) 46-1
Negative sequence non-directional time overcurrent protection 2 XNSPTOC2 I2 >(2) 46-2
Phase discontinuity protection PDNSPTOC1 I2/I1> 46PD
Three-phase inrush detector INPHAR 3I2f > INR
Directional Protection
Single-phase directional overcurrent protection, low stage 1 SDPHLPDOC1 3I >->(1) 67/51P-1
Single-phase directional overcurrent protection, low stage 2 SDPHLPDOC2 3I >->(2) 67/51P-2
Directional ground-fault protection, low stage 1 XDEFLPDEF1 Io>->(1) 67/51N-1
Directional ground-fault protection, low stage 2 XDEFLPDEF2 Io>->(2) 67/51N-2
Cold Load Timers
Cold load timer 1 Phase A (in seconds) TPSGAPC1 TPS(1) 62CLD-1
Cold load timer 2 Phase A (in minutes) TPMGAPC1 TPM(1) 62CLD-2
Cold load timer 1 Phase B (in seconds) TPSGAPC2 TPS(2) 62CLD-3
Cold load timer 2 Phase B (in minutes) TPMGAPC2 TPM(2) 62CLD-4
Cold load timer 1 Phase C (in seconds) TPSGAPC3 TPS(3) 62CLD-5
Cold load timer 2 Phase C (in minutes) TPMGAPC3 TPM(3) 62CLD-6
Voltage Protection
Single-phase overvoltage 1, source 1 low stage SPHPTOV1 3U >(1) 59-1
Single-phase overvoltage 2, source 1 high stage SPHPTOV2 3U >(2) 59-2
Single-phase overvoltage 3, source 2 low stage SPHPTOV3 3U >(3) 59-3
Single-phase undervoltage 1, source 1 low stage SPHPTUV1 3U <(1) 27-1
Single-phase undervoltage 2, source 1 high stage SPHPTUV2 3U <(2) 27-2
Single-phase undervoltage 3, source 2 low stage SPHPTUV3 3U <(3) 27-3
Positive sequence overvoltage protection, source1 PSPTOV1 U1>(1) 59PS-1
Positive sequence overvoltage protection, source 2 PSPTOV2 U1>(2) 59PS-2
Negative sequence overvoltage protection, source1 NSPTOV1 U2>(1) 47
Negative sequence overvoltage protection, source 2 NSPTOV2 U2>(2) 47-2
Zero sequence overvoltage protection, source1 ROVPTOV1 Uo>(1) 59N-1
Zero sequence overvoltage protection, source 2 ROVPTOV2 Uo>(2) 59N-2

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Introduction

Function IEC61850 IEC60617 ANSI/C37.2

Frequency Protection
Underfrequency, Overfrequency, Frequency rate of change, Source 1, Stage 1 FRPFRQ1 f</f>,df/dt(1) 81-1
Underfrequency, Overfrequency, Frequency rate of change, Source 1, Stage 2 FRPFRQ2 f</f>,df/dt(2) 81-2
Load Shed & Restoration, Source 1, Stage 1 LSHDPFRQ1 UFLS/R(1) 81S-1
Load Shed & Restoration, Source 1, Stage 2 LSHDPFRQ2 UFLS/R(2) 81S-2
Other Protection
High Impedance Fault Detector PHIZ1 PHIZ1 HIZ
Circuit breaker failure protection SCCBRBRF1 3I>/Io>BF 50BFT
Circuit breaker close failure protection SCCBRBCF1 SCCBRBCF1 50BFC
Directional positive sequence power protection DPSRDIR1 P>-> 32P
Directional negative/zero sequence power protection DNZSRDIR1 Q>-> 32N
Control
Autoreclosing, 1ph and/or 3ph SDARREC1 O -> I 79
Synch-check/voltage check (Source 1 is defined as bus, Souce 2 as line) SECRSYN1 SYNC 25

Circuit Breaker 1 (3 state inputs / 3 control outputs) SCBXCBR1 I<->O CB 52

Loop control DLCM LCM LCM
Supervision and Monitoring
CB condition monitoring SPSCBR1 CBCM 52CM
Fuse failure supervision, Source 1 SEQRFUF1 FUSEF 60
Measurement
Three-phase current CMMXU1 3I IA,IB,IC
Demand metering, Max/Min metering CMSTA1
Sequence current CSMSQI1 I1,I2,I0 I1, I2, I0
Ground current RESCMMXU1 Io IG
Three-phase voltage, Source 1 VMMXU1 3U VA,VB,VC
Three-phase voltage, Source 2 VMMXU2 3U(B) VA,VB,VC(2)
Sequence voltages, Source 1 VSMSQI1 U1,U2,U0 V1,V2,V0
Sequence voltages, Source 2 VSMSQI2 U1,U2,U0(B) V1,V2,V0(2)
Single and Three-phase power, Power factor and three phase energy, Source 1 APEMMXU1 P,SP,E P,SP,E
Frequency, Source 1 FMMXU1 f f
Recorders
Digital fault recorder (DFR) RDRE DR DFR
Sequence of Events (SER) SER SER SER
Fault Recorder FLTMSTA FLTMSTA FLTMSTA
Fault Locator (FLOC) DRFLO1 FLO FLO
Other Functions
Battery voltage, current. Test the battery ZBAT1 UPS UPS
Universal Power Drive XGGIO115 X115(UPD) X115(UPD)
Programmable buttons (16 buttons) FKEYGGIO1 FKEYGGIO1 FKEYGGIO1
Move function block (8 outputs) MVGAPC1 MVGAPC1 MVGAPC1
Move function block (8 outputs) MVGAPC2 MVGAPC2 MVGAPC2

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Introduction

Function IEC61850 IEC60617 ANSI/C37.2

Pulse timer (8 timers) PTGAPC1 PTGAPC1 PTGAPC1
Pulse timer (8 timers) PTGAPC2 PTGAPC2 PTGAPC2
Generic control points (16 outputs) SPCGGIO1 SPCGGIO1 SPCGGIO1
Generic control points (16 outputs) SPCGGIO2 SPCGGIO2 SPCGGIO2
Set reset flip flops (8 outputs) SRGAPC1 SRGAPC1 SRGAPC1
Set reset flip flops (8 outputs) SRGAPC2 SRGAPC2 SRGAPC2
Time delay off timers (8 timers) TOFGAPC1 TOFGAPC1 TOFGAPC1
Time delay off timers (8 timers) TOFGAPC2 TOFGAPC2 TOFGAPC2
Time delay on timers (8 timers) TONGAPC1 TONGAPC1 TONGAPC1
Time delay on timers (8 timers) TONGAPC2 TONGAPC2 TONGAPC2
Multipurpose generic up-down counter UDFCNT1 UDFCNT1 UDFCNT1
Multipurpose generic up-down counter UDFCNT2 UDFCNT2 UDFCNT2
Multipurpose generic up-down counter UDFCNT3 UDFCNT3 UDFCNT3
Multipurpose generic up-down counter UDFCNT4 UDFCNT4 UDFCNT4
Multipurpose generic up-down counter UDFCNT5 UDFCNT5 UDFCNT5
Multipurpose generic up-down counter UDFCNT6 UDFCNT6 UDFCNT6
Multipurpose generic up-down counter UDFCNT7 UDFCNT7 UDFCNT7
Multipurpose generic up-down counter UDFCNT8 UDFCNT8 UDFCNT8
Multipurpose generic up-down counter UDFCNT9 UDFCNT9 UDFCNT9
Multipurpose generic up-down counter UDFCNT10 UDFCNT10 UDFCNT10
Multipurpose generic up-down counter UDFCNT11 UDFCNT11 UDFCNT11
Multipurpose generic up-down counter UDFCNT12 UDFCNT12 UDFCNT12

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Environmental aspects

Section 2 Environmental aspects

2.1 Sustainable development

Sustainability has been taken into account from the beginning of the product design
including the pro-environmental manufacturing process, long life time, operation
reliability and disposing of the relay.
The choice of materials and the suppliers have been made according to the EU RoHS
directive (2002/95/EC). This directive limits the use of hazardous substances which are the
following:
Table 2: Maximum concentration values by weight per homogeneous material
Substance Proposed maximum concentration
Lead - Pb 0.1%
Mercury - Hg 0.1%
Cadmium - Cd 0.01%
Hexavalent Chromium Cr (VI) 0.1%
Polybrominated biphenyls - PBB 0.1%
Polybrominated diphenyl ethers - PBDE 0.1%

Operational reliability and long life time have been assured with extensive testing during
the design and manufacturing processes. Moreover, long life time is supported by
maintenance and repair services as well as by the availability of spare parts.
Design and manufacturing have been done under a certified environmental system. The
effectiveness of the environmental system is constantly evaluated by an external auditing
body. We follow environmental rules and regulations systematically to evaluate their
effect on our products and processes.

2.2 Disposing of the relay

Definitions and regulations of hazardous materials are country-specific and change when
the knowledge of materials increases. The materials used in this product are typical for
electric and electronic devices.
All parts used in this product are recyclable. When disposing of an relay or its parts contact
a local waste handler who is authorized and specialized in disposing electronic waste.
These handlers can sort the material by using dedicated sorting processes and dispose of
the product according to the local requirements.

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Environmental aspects

Table 3: Materials of the relay parts

Relay Parts Material
Case Metallic plates, parts and screws Steel
Plastic parts PC1 , LCP2
Electronics plug in module Various
Plug-in unit Electronics plug in modules Various
Electronics LHMI module Various
Plastic parts PC, PBT3 , LCP, PA4
Metallic plate Steel
Package Box Cardboard
Attached material Manuals Paper

1. Polycarbonate
2. Liquid crystal polymer
3. Polybutylene terephthalate
4. Polyamide

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620 series overview

Section 3 620 series overview

3.1 Overview

620 series is a product family of relays designed for protection, control, measurement and
supervision of utility substations and industrial switchgear and equipment. The design of
the relays has been guided by the IEC 61850 standard for communication and
interoperability of substation automation devices.
The relays feature draw-out-type design with a variety of mounting methods, compact size
and ease of use. Depending on the product, optional functionality is available at the time
of order for both software and hardware, for example, autoreclosure and additional I/Os.
The 620 series relays support a range of communication protocols including IEC 61850
with GOOSE messaging, Modbus®, DNP3, PG&E 2179 and IEC 101/104.

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620 series overview

3.2 Local HMI

Figure 3: LHMI
The LHMI of the relay contains the following elements:
• Display
• Buttons
• LED indicators
• Communication port
The LHMI is used for setting, monitoring and controlling.

3.2.1 LCD
The LHMI includes a graphical LCD that supports two character sizes. The character size
depends on the selected language.

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620 series overview

Table 4: Characters and rows on the view

Character size Rows in view Characters on row
Large, variable width (13x14 4 rows min 8
pixels) 8 rows with large screen

The display view is divided into four basic areas.

1 2

3 4

Figure 4: Display layout

1 Header
2 Icon
3 Content
4 Scroll bar (displayed when needed)

• The header area at the top of the display view shows the current location in the menu
structure.
• The icon area at the upper right corner of the display shows the current action or user
level.
Current action is indicated by the following characters:
• U: Font/Firmware is being updated
• S: Parameters are being stored
• !: Warning and/or indication
Current user level is indicated by the following characters:
• V: Viewer
• O: Operator
• E: Engineer
• A: Administrator
• The content area shows the menu content.
• If the menu contains more rows than the display can show at a time, a scroll bar is
displayed on the right.
The display is updated either cyclically or based on changes in the source data such as
parameters or events.

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3.2.2 LEDs
The LHMI includes three protection indicators above the display: Normal, Pickup and
Trip.
There are also 11 matrix programmable alarm LEDs on front of the LHMI. The LEDs can
be configured with PCM600 and the operation mode can be selected with the LHMI,
WHMI or PCM600.
There are two additional LEDs which are embedded into the control buttons and .
They represent the status of the circuit breaker.

3.2.3 Keypad
The LHMI keypad contains push-buttons which are used to navigate in different views or
menus. With the push-buttons you can give open or close commands to one primary
object, for example, a circuit breaker, disconnector or switch. The push-buttons are also
used to acknowledge alarms, reset indications, provide help and switch between local and
remote control mode.

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Figure 5: LHMI keypad with object control, navigation and command push-buttons
and RJ-45 communication port
1 Close
2 Open
3 Escape
4 Left
5 Right
6 Up
7 Down
8 Enter
9 Key
10 Clear
11 Menu
12 Remote/Local
13 Help
14 Communication port
15 Uplink LED
16 Communication LED

Object control
If the control position of the relay is set to local with the R/L button, the relay can be
controlled using the object control buttons.
Table 5: Object control push-buttons
Name Description
Closing the object.
Close The LED indicates the current object state.
Opening the object.
Open The LED indicates the current object state.

Navigation
The arrow buttons are used for navigation. To scroll information, press the arrow button
several times or simply keep it pressed down.

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Table 6: Navigation push-buttons

Name Description
• Leaving setting mode without saving the values.
ESC • Cancelling certain actions.
• Adjusting the display contrast in combination with or .

• Changing the language in combination with .

• Running the display test in combination with .

• Deleting a character in combination with when editing a string.

• Inserting a space in combination with when editing a string.

• Entering parameter setting mode.

Enter • Confirming a new value of a setting parameter.

• Moving up and down in menus.

Up • Scrolling active digits of a parameter when entering a new setting value.

Down

• Moving left and right in menus.

Left • Changing the active digit of a parameter when entering a new setting value.

Right

• Activating the authorization procedure, when the user is not logged in.
Key • Logging out, when the user is currently logged in.

Commands
Table 7: Command push-buttons
Name Description
• Moving directly to Main menu, if currently in any other menu or view.
• Moving to the default view, if currently in Main menu.
Menu
Changing the control position (remote or local) of the device.
R/L • When the R LED is lit, remote control is enabled and local control disabled.
• When the L LED is lit, local control is enabled and remote control disabled.
• When none of the LEDs are lit, both control positions are disabled.
• Activating the Clear/Reset view.
Clear • Clearing indications and LEDs. The first three-second press clears the indications.
The second three-second press clears the alarm LEDs. Requires appropriate user
rights.
Showing context sensitive help messages.
Help

3.2.4 Local HMI functionality

3.2.4.1 Protection and alarm indication

Protection indicators
The protection indicator LEDs are Normal, Pickup and Trip.

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Table 8: Normal LED

LED state Description
Off Auxiliary supply voltage is disconnected.
On Normal operation.
Flashing Internal fault has occurred or the relay is in test mode. Internal faults are
accompanied by an indication message.

Table 9: Pickup LED

LED state Description
Off Normal operation.
On A protection function has picked up and an indication message is displayed.
• If several protection functions pick up within a short time, the last pickup is
indicated on the display.
Flashing A protection function is blocked.
• The blocking indication disappears when the blocking is removed or when
the protection function is reset.

Table 10: Trip LED

LED state Description
Off Normal operation.
On A protection function has tripped and an indication message is displayed.
• The trip indication is latching and must be reset via communication or by
pressing .
• If several protection functions trip within a short time, the last trip is indicated
on the display.

Alarm indicators
The 11 matrix programmable LEDs are used for alarm indication.
Table 11: Alarm indications
LED state Description
Off Normal operation. All activation signals are off.
On • Non-latched mode: activation signal is still on.
• Latched mode: activation signal is still on, or it is off but has not been
acknowledged.
• Latched flashing mode: activation signal is still on but has been
acknowledged.
Flashing • Non-latched flashing mode: activation signal is still on.
• Latched flashing mode: activation signal is still on, or it is off but has not
been acknowledged.

3.2.4.2 Parameter management

The LHMI is used to access the relay parameters. Three types of parameters can be read
and written.
• Numerical values
• String values
• Enumerated values

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Numerical values are presented either in integer or in decimal format with minimum and
maximum values. Character strings can be edited character by character. Enumerated
values have a predefined set of selectable values.

3.2.4.3 Front communication

The RJ-45 port in the LHMI enables front communication. Two LEDs are located above
the communication port.
• The green uplink LED on the left is lit when the cable is successfully connected to the
port.
• The yellow communication LED on the right flashes when the relay communicates
with the connected device.
Figure 6: RJ-45 communication port and indication LEDs

1 2

1 Uplink LED

2 Communication LED

When a computer is connected to the relay, the relay's DHCP server for the front interface
assigns an IP address to the computer. The fixed IP address for the front port is
192.168.0.254.

3.3 Web HMI

The WHMI enables the user to access the relay via a web browser. The supported web
browser versions are Internet Explorer 9.0, 10.0 and 11.0.

WHMI is enabled by default. To disable the WHMI, select Main Menu >
Configuration > HMI > Web HMI mode via the LHMI. Reboot the relay
for the change to take effect.

WHMI offers several functions.

• Alarm indications and event lists
• System supervision
• Parameter settings

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• Measurement display
• Oscillographic records
• Phasor diagram
The menu tree structure on the WHMI is almost identical to the one on the LHMI.

Figure 7: Example view of the WHMI

The WHMI can be accessed locally and remotely.
• Locally by connecting your laptop to the relay via the front communication port.
• Remotely over LAN/WAN.

3.3.1 Command buttons

Command buttons can be used to edit parameters and control information via the
WHMI.

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Table 12: Command buttons

Name Description
Enabling parameter editing.

Disabling parameter editing.

Writing parameters to the relay.

Refreshing parameter values.

Printing out parameters.

Committing changes to relay's

non-volatile flash memory.

Rejecting changes.

Showing context sensitive help

messages.

Clearing events.

Triggering the DFR manually.

Saving values to CSV file format.

Freezing the values so that updates

are not displayed.

Receiving continuous updates to the

monitoring view.
Deleting the DFR.

Deleting all DFRs.

Uploading part one of a DFR.

Uploading part two of a DFR.

3.4 Authorization

The user categories have been predefined for the LHMI and the WHMI, each with
different rights and default passwords.
The default passwords can be changed with Administrator user rights.

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User authorization is disabled by default for LHMI and can be enabled via
the LHMI or the WHMI Main Menu > Configuration > Authorization.
WHMI always requires authentication.

Table 13: Predefined user categories

Username User rights
VIEWER Read only access
OPERATOR
• Selecting remote or local state with (only locally)
• Changing setting groups
• Controlling
• Clearing alarm and indication LEDs and textual indications
ENGINEER • Changing settings
• Clearing event list
• Clearing DFRs
• Changing system settings such as IP address, serial baud rate or DFR
settings
• Setting the relay to test mode
• Selecting language
ADMINISTRATOR • All listed above
• Changing password
• Factory default activation

For user authorization for PCM600, see PCM600 documentation.

3.5 Communication

The relay supports different communication protocols: IEC 61850 with GOOSE
messaging, Modbus®, DNP3, IEC 60870-5-101, and IEC 60870-5-104 all using TCP/IP.
DNP3 and Modbus also support serial communication. PG&E2179 protocol is supported
in serial communication. Operational information and controls are available through these
protocols.
The IEC 61850 communication implementation supports all monitoring and control
functions. Additionally, parameter setting and DFR records can be accessed using the IEC
61850 protocol. Oscillographic files are available to any Ethernet-based application in the
standard COMTRADE format. Further, the relay can send and receive binary signals from
other relays (so called horizontal communication) using the IEC61850-8-1 GOOSE
profile, where the highest performance class with a total transmission time of 3 ms is
supported. The relay meets the GOOSE performance requirements for tripping
applications in distribution substations, as defined by the IEC 61850 standard. The relay
can simultaneously report events to five different clients on the station bus.
All communication connectors, except for the front port connector, are placed on
integrated optional communication modules. The relay can be connected to
Ethernet-based communication systems via the RJ-45 connector (100BASE-TX) or the
fiber-optic LC connector (100BASE-FX).

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3.6 PCM600 tool

Protection and Control relay Manager PCM600 offers all the necessary functionality to
work throughout all stages of the relay life cycle.
• Planning
• Engineering
• Commissioning
• Operation and disturbance handling
• Functional analysis
With the individual tool components, you can perform different tasks and functions and
control the whole substation. PCM600 can operate with many different topologies
depending on customer needs.

For more information, see PCM600 documentation.

3.6.1 Connectivity packages

A connectivity package is a collection of software and information related to a specific
protection and control terminal providing system products and tools to connect and
interact with the relay.
Connectivity Package Manager is a tool that helps the user to define the right connectivity
package versions for different system products and tools. Connectivity Package Manager
is included in products supporting the connectivity concept.
Use the connectivity packages to create configuration structures in PCM600. In addition
to other products supporting the connectivity concept, the connectivity packages for
PCM600 contain:
• Description of relay's internal parameters and their properties such as data format,
unit, setting range, visibility and access rights. The description texts can be translated
into other languages as well.
• Software components that adapt the relay-specific interfaces to the standard
interfaces of system products and tools such as relay-specific dispatchers for tools.
This means that there is a protocol-specific adaptation for the parameter setting and
disturbance handling tool components, for example DFR file uploading according to
COMTRADE.

3.6.2 PCM600 and relay connectivity package version

• Protection and Control relay Manager PCM600 Ver. 2.6 or later
• Relay Connectivity Package RER620 Ver. 1.2 or later
Download connectivity packages from the ABB web site
http://www.abb.com/substationautomation

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Section 4 Using the HMI

4.1 Using the local HMI

You must be logged in and authorized to use the LHMI. Password authorization is disabled
by default and can be enabled via the LHMI or WHMI.

To enable password authorization, select Main menu > Configuration >

Authorization > Local override. Set the parameter to False

4.1.1 Logging in

1. Press to activate the login procedure.

2. Press or to select the user level.

Figure 8: Selecting access level

3. Confirm the selection with .

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4. Enter the password when prompted digit by digit.

• Activate the digit to be entered with and .

• Enter the character with and .

Figure 9: Entering password

5. Press to confirm the login.

• To cancel the procedure, press .

Figure 10: Error message indicating wrong password

The current user level is shown on the LCD's upper right corner in the icon
area.

4.1.2 Logging out

The user is automatically logged out 30 seconds after the backlight timeout.

1. Press .

2. To confirm logout, select Yes and press .

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Figure 11: Logging out

• To cancel logout, press .

4.1.3 Turning the display backlight on

The display backlight is normally off. It turns on during the display test at power up.
• To turn on the backlight manually, press any LHMI push button.
The backlight turns on and the panel is ready for further operations.

If the panel has not been used for a predefined timeout period, the backlight is switched
off. The user is logged out from the current user level 30 seconds after the display
backlight has turned off.
The display returns to the default view and all unconfirmed operations such as parameter
editing and breaker selection are cancelled.

Change the backlight timeout period in Main menu > Configuration >
HMI > Backlight timeout.

4.1.4 Selecting local or remote use

The control position of the relay can be changed with the R/L button. In local position
primary equipment, such as circuit breakers or disconnectors, can be controlled via the
LHMI. In remote position, control operations are possible only from a higher level, that is
from a control center.

• Press for two seconds.

• When the L LED is lit, local control is enabled and remote control disabled.
• When the R LED is lit, remote control is enabled and local control disabled.
• When neither of the LEDs is lit, both control positions are disabled.

The control position cannot be simultaneously local and remote but it can
be disabled when neither of the positions is active.

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To control the relay, log in with the appropriate user rights.

4.1.5 Identifying the device

The relay information includes detailed information about the device, such as revision and
serial number.
The relay information is shown on the display for a few seconds when the device starts up.
The same information is also found in the relay menu.
1. Select Main menu > Information.

2. Select a submenu with and .

Figure 12: Selecting a submenu

3. Enter the submenu with .

4. Browse the information with and .

Figure 13: relay information

4.1.6 Adjusting the display contrast

Adjust the display contrast anywhere in the menu structure to obtain optimal readability.

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• To increase the contrast, press simultaneously and .

• To decrease the contrast, press simultaneously and .

The selected contrast value is stored in the non-volatile memory if you are logged in and
authorized to control the relay. After an auxiliary power failure, the contrast is restored.

4.1.7 Changing the local HMI language

1. Select Main menu > Language and press .

2. Change the language using or .

3. Press to confirm the selection.

4. Commit the changes.

Figure 14: Changing the LHMI language

To change the language using a shortcut, press and

simultaneously anywhere in the menu.

4.1.8 Changing display symbols

To switch between the display symbols IEC 61850 and ANSI:
1. Select Main Menu > Configuration > HMI > FB naming convention and press

2. Change the display symbols with or .

3. Press to confirm the selection.

The relay has to be rebooted if the WHMI display symbols are changed.
With the LHMI, the change takes effect immediately.

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4.1.9 Navigating in the menu

Navigate the menus and change the display views on the screen with the keypad.

• To move to the Main menu or default view, press .

• To move up or down in a menu, press or .

• To move downwards in the menu tree, press .

• To move upwards in the menu tree, press .

• To enter setting mode, press .

• To leave setting mode without saving, press .

4.1.9.1 Menu structure

The Main menu contains main groups which are divided further into more detailed
submenus.
• Events
• Measurements
• Disturbance records
• Settings
• Configuration
• Monitoring
• FB status
• Tests
• Function tests
• Information
• Clear
• Language
• Control
• SLD

4.1.9.2 Scrolling the LCD view

If a menu contains more rows than the display can show at a time, a scroll bar is displayed
on the right.

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Figure 15: Scroll bar on the right

• To scroll the view upwards, press .

• To scroll the view downwards, press .

• To jump from the last row to the first row, press again.

• Press to jump from the first row to the last row.

• To scroll parameter names and values that do not fit the screen, press . Press

once to return to the beginning.

4.1.9.3 Changing the default view

The default view of the display is Measurements unless set otherwise.

1. Select Main menu > Configuration > HMI > Default view and press .

2. Change the default view with or .

3. Press to confirm the selection.

4.1.10 Browsing setting values

1. Select Main menu > Settings > Settings and press .

2. Select the setting group to be viewed with or .

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Figure 16: Selecting a setting group

3. Press to confirm selection.

4. To browse the settings, scroll the list with and and to select a setting press

. To move back to the list, press .

Figure 17: Setting alternatives in the selected setting group

4.1.11 Editing values

• To edit values, log in with the appropriate user rights.

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4.1.11.1 Editing numerical values

1. Select Main menu > Settings and then a setting.
The last digit of the value is active.
• When the symbol in front of the value is ↑, increase the active value.
• When the symbol is ↓, decrease the active value.
• When the symbol in front of the value is ↕, either increase or decrease the
active value.

Figure 18: Last digit is active and it can only be increased

2. Press to increase or to decrease the value of an active digit.

One press increases or decreases the value by a certain step. For integer values, the
change is 1, 10, 100 or 1000 (...) depending on the active digit. For decimal values,
the change can be fractions 0.1, 0.01, 0.001 (...) depending on the active digit.

For parameters with defined steps, digits smaller than the step value cannot
be edited.

3. Press or to move the cursor to another digit.

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4. To select the minimum or maximum value, select the arrow symbol in front of the
value.

• To set the value to the maximum, press .

• To set the value to the minimum, press .

Figure 19: Arrow symbol is active, the value is set to the maximum

After pressing , the previous value can be restored by pressing once, and

vice versa. Another press of or sets the value to the lower or higher limit.
The symbol in front of the value is ↕, when the previous value is shown.

Figure 20: Restoring the previous value

4.1.11.2 Editing string values
1. Activate the setting mode and select a setting.
When editing string values, the cursor moves to the first character.

2. Press or to change the value of an active character.

One press changes the value by one step.

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3. Press or to move the cursor to another character.

• To insert characters or space, press simultaneously and .

• To delete characters, press simultaneously and .

4.1.11.3 Editing enumerated values

1. Activate the setting mode and select a setting.
When editing an enumerated value, the selected value is shown inverted.

2. Press or to change the value of an active enumerated value.

One press changes the enumerated value by one step in the parameter specific order.

4.1.12 Committing settings

Editable values are stored either in RAM or in non-volatile flash memory. Values stored
in flash memory are in effect also after reboot.
Some parameters have an edit-copy. If editing is cancelled, the values with an edit-copy
are immediately restored to the original value. The values without an edit-copy, such as
string values, are restored to the original value only after a reboot even though the edited
value is not stored in the flash memory.

1. Press to confirm any changes.

2. Press to move upwards in the menu tree or to enter the Main Menu.

3. To save the changes in non-volatile memory, select Yes and press .

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Figure 21: Confirming settings

• To exit without saving changes, select No and press .

• If the parameter has an edit-copy, the original parameter value is restored.
• If the parameter does not have an edit-copy, the edited parameter value
remains visible until you reboot the relay. However, the edited value is not
stored in non-volatile memory and the reboot restores the original value.

• To cancel saving settings, select Cancel and press . The value returns to
editing mode.

After certain parameters are changed, the relay has to be restarted.

4.1.13 Clearing and acknowledging

The Clear button is used to reset, acknowledge or clear all messages and indications,
including LEDs and latched outputs as well as registers and recordings. Press the Clear
button to activate a selection menu, and select the wanted clearance or reset function.
Events and alarms assigned to alarm LEDs are cleared with the Clear button as well.

1. Press to activate the Clear view.

Figure 22: Clear view

2. Select the item to be cleared with or .

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3. Press , change the value with or and press again.

The item is now cleared.
4. Repeat steps 2 and 3 to clear other items.

Use the button as a shortcut for clearing. The first three-second press
clears the indications. The second three-second press clears the alarm
LEDs.

4.1.14 Using the local HMI help

1. Press to open the help view.

2. Scroll the text with or if the help text exceeds the display area.

3. To close the help, press .

4.2 Using the Web HMI

WHMI is enabled by default. Log in with the proper user rights to use the WHMI.
1. To enable the WHMI, select Main menu > Configuration > HMI > Web HMI
mode via the LHMI.
2. Reboot the relay for the change to take effect.

4.2.1 Logging in
1. Enter the username with capital letters.
2. Enter the password.
3. Click OK.

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Figure 23: Entering username and password to use the WHMI

4.2.2 Logging out

The user is logged out after session timeout. The timeout can be set in Main menu >
Configuration > HMI > Web HMI timeout.

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Figure 24: Session timeout

• To log out manually, click Logout on the menu bar.

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Figure 25: WHMI logout

4.2.3 Identifying the device

The relay information includes detailed information about the device, such as revision and
serial number.
1. Click Information in the WHMI menu structure.
2. Click a submenu to see the data.

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Figure 26: Device information

4.2.4 Navigating in the menu

The menu tree structure on the WHMI is almost identical to the one on the LHMI. Use the
menu bar to access different views.
• The General view shows the relay version and status.
• The Events view contains a list of events produced by the application configuration.
• The Alarms view shows the status of alarm LEDs.
• The Phasor diagrams view shows phasor diagrams.
• The DFR records view shows the list of disturbance records.
• The WHMI settings view contains user settings for the web client. WHMI settings
include, for example, the client-specific setting for the WHMI language. Different
users can use different languages when connecting to the same relay. The WHMI
language selection is independent of the language selection for the LHMI.
• Logout ends the session.

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Figure 27: Navigating in the WHMI menus

4.2.4.1 Menu structure
The Main menu contains main groups which are divided further into more detailed
submenus.
• Events
• Measurements
• DFR records
• Settings
• Configuration
• Monitoring
• Tests
• Information

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• Clear
• Language
• Parameter list

4.2.5 Showing all parameters

1. Click Parameter list in the main menu.

Figure 28: Show all parameters

2. Click Print to print out all parameters on paper.

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Figure 29: Settings group

3. Click Save to save all parameters in CSV file format.

4.2.6 Editing values

1. Click the menu in the WHMI tree.
2. Click the submenu to see function blocks.
3. Click a function block to see the setting values.
4. Click Enable Write.
Some parameters, for example the relay test mode, cannot be set via the
WHMI.

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Figure 30: Enable writing to edit a value

The selected setting group is shown in the Setting Group drop-down list. The active
setting group is indicated with an asterisk *.

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5. Edit the value.

• The minimum and maximum values for a parameter are shown in the Min. and
Max. columns.

• Setting group values are indicated with .

Figure 31: Editing a value

• If the entered value is within the accepted value range, the selection is high-
lighted in green. If the value is out of range, the row is highlighted in red and
a warning dialog box is displayed.

Figure 32: Warning indicating that the entered value is incorrect

• If writing values fails, a warning dialog box is displayed.

Figure 33: Warning indicating that the values were not written to the relay

If writing is enabled accidentally, click Disable Write. Disable Write

cannot be selected, when a value has already been written to the relay.
After clicking Write to relay, click either Commit or Reject.

4.2.7 Committing settings

Editable values are stored either in RAM or in non-volatile flash memory. Values stored
in flash memory are in effect also after reboot.
Some parameters have an edit-copy. If editing is cancelled, the values with an edit-copy
are immediately restored to the original value. The values without an edit-copy, such as
string values, are restored to the original value only after a reboot even though the edited
value is not stored in the flash memory.

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1. Click Write to relay after editing parameter values to put the values into relay's
database for use.

Figure 34: Writing values to relay

The values are not stored to the flash memory.
2. Click Commit to write the values to the flash memory.
• Click Reject to cancel saving settings.
• If the parameter has an edit-copy, the original parameter value is restored.
• If the parameter does not have an edit-copy, the edited parameter value
remains visible until you reboot the relay. However, the edited value is not
stored in non-volatile memory and thus the reboot restores the original value.

Figure 35: Committing changes

Committing values will take a few seconds.

If the values are not committed, they are not taken into use and they are lost
after a reboot.

4.2.8 Clearing and acknowledging

Reset, acknowledge or clear all messages and indications, including LEDs and latched
outputs as well as registers and recordings, in the Clear menu.
1. Click the Clear menu.

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Figure 36: Selecting clear menu

2. In the New Value box, click Clear to select the item to be cleared.
3. Click Write to relay.
4. Click Reject.

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Figure 37: Clearing indications and LEDs

4.2.9 Selecting the programmable-LED view

The programmable LED view shows the status of the LEDs that are located on the upper
right side of the LHMI panel.
• Click Programmable LEDs in the menu bar.

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Figure 38: Monitoring programmable LEDs

4.2.10 Selecting the event view

The event view contains a list of events produced by the application configuration.
1. Click Events in the menu bar.

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Figure 39: Monitoring events

2. Click Save to save the events in CSV file format.
The CSV file can be opened with a spreadsheet program such as OpenOffice.org
Calc or Microsoft Excel.
3. Click Clear events to clear all events from the relay.

4.2.11 Selecting the disturbance records view

Disturbance records are listed in the disturbance records view.
• Click Disturgance records on the menu bar.

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Figure 40: Disturbance records view

4.2.11.1 Uploading disturbance records
1. Click Disturbance records on the menu bar.
2. To upload a disturbance record, click the icons in the CFG and DAT columns of the
record.

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Figure 41: Uploading a DFR record

3. Save both the files in the same folder on your computer.
4. Open the DFR record files with a suitable program.

4.2.11.2 Triggering the disturbance recorder manually

1. Click Disturbance records on the menu bar.
2. Click Manual trigger.

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Figure 42: Manual triggering disturbance record

4.2.11.3 Deleting disturbance records
1. Click Disturbance records on the menu bar.

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2. Delete records.
• Click Delete all to delete all records.
• Select one or more recordings and click Delete to delete selected records.

Figure 43: Deleting disturbance records

3. Click OK to confirm or Cancel to cancel the deletion.

4.2.12 Selecting phasor diagrams

1. Click Phasor diagrams in the menu bar.

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Figure 44: Normal case with symmetrical phase currents

2. Toggle the diagram visibility by selecting it from the drop-down menu.

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Figure 45: Toggling the diagram visibility

Visible diagrams are indicated with an asterisk *.
3. Change the size of the diagram by changing the zoom value.

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Figure 46: Zooming the diagram

4. Click Freeze to stop updating the phasor diagram.
No updates are displayed in the diagram.

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Figure 47: The arrow extends outside the circle if the current value is too high

Install an SVG plugin to view the phasor diagrams.

4.2.13 Using the Web HMI help

The context sensitive WHMI help provides information, for example, of a single
parameter.

1. Click .
The help dialog box is displayed.

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Figure 48: Opening the WHMI help

2. To close the help dialog box, click OK.

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Relay Operation

Section 5 Relay Operation

5.1 Normal operation

In a normal relay use situation, the basic operation includes monitoring and checking
procedures.
• Monitoring measured values
• Checking object states
• Checking function setting parameters
• Checking events and alarms
All basic operations can be performed via the LHMI, WHMI or with PCM600.

For more information, see PCM600 documentation.

5.2 Disturbance identification

Disturbances and their causes can be identified by indicator LEDs: Normal, Pickup and
Trip. During normal operation, the Normal LED is steady green.
Table 14: Disturbance indications
LED State Description
Pickup LED Yellow, steady Protection picked up
Pickup LED Yellow, flashing Protection function blocked
Trip LED Red, steady Protection tripped
Normal LED Green, flashing Internal fault

Further actions to be taken to identify the disturbance:

• Checking alarm LEDs
• Reading event history
• Checking fault records
• Analyzing disturbance recordings
Document the disturbance before clearing the information from the relay.

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Only authorized and skilled personnel should analyze possible errors and
decide on further actions. Otherwise, stored disturbance data can be lost.

5.2.1 DFR record triggering

DFR recordings are normally triggered by relay applications when they detect fault events.
DFR recordings can also be triggered manually or periodically. The manual trigger
generates an instant disturbance report. Use this function to get a snapshot of the monitored
line.

5.2.2 DFR record analysis

The relay collects disturbance records of fault events which are set to trigger the DFR
recorder. DFR data is collected and stored for later viewing and analysis. The DFR
recorder data can be uploaded and analyzed, for example, with PCM600.

For more information, see PCM600 documentation.

5.2.3 DFR reports

PCM600 can be used for creating reports of DFR recorder data.

For more information, see PCM600 documentation.

5.2.4 Internal relay errors

The relay self-supervision handles internal run-time fault situations. The main indication
of an internal fault is a flashing green Normal LED.
Internal faults can be divided to hardware errors, run-time errors in the application or
operating system and communication errors. Further actions always depend on the cause
of the error.

Only authorized and skilled personnel should analyze the errors and decide
on further actions.

The relay records system registrations, relay status data and events.

Document all the recorded data from the relay before resetting the tripping
and relay lockout functions.

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5.3 Relay parametrization

Relay parameters are set via the LHMI, WHMI or PCM600.

Setting parameters need to be calculated according to the electrical network conditions and
the electrical characteristics of the protected equipment. The relay's settings need to be
verified before the relay is connected to a system.

Document all changes to parameter settings.

For more information, see PCM600 documentation.

5.3.1 Relay settings for relay functionality

Function settings can be edited one by one by navigating to the individual setting values,
for example via the LHMI. The values in other setting groups should be known before
editing a certain setting value.
After completing the editing of setting group values, the new values are activated. The user
can either commit the edited values or discard them. Setting values can also be copied from
one setting group to another.

5.3.2 Relay settings for different operating conditions

Relay settings can be designed for various operation conditions by defining different
setting values to different setting groups. The active setting group can be changed by the
relay application or manually via the LHMI, WHMI or PCM600.

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Operating Procedures

Section 6 Operating Procedures

6.1 Monitoring

6.1.1 Indications
The operation of the relay can be monitored via three different indications on the LHMI.
• Three indicator LEDs with fixed functionality: Normal, Pickup and Trip
• 27 programmable alarm LEDs
• A text message on the display.

6.1.1.1 Monitoring indication messages

Indication messages and tripping data are shown in a dialog box.
1. Read the indication message in the dialog box.
The message can indicate the pickup or tripping of protection functions or an
internal fault in the device.

2. Press to close the indication message without clearing it or press to activate

the Clear view and to clear messages.

Figure 49: Indication message

6.1.1.2 Monitoring an internal relay fault
The flashing green LED indicates an internal relay fault. Internal relay fault messages are
shown in a dialog box.

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Figure 50: Fault indication

1. Select Main menu > Monitoring > relay status > Self-supervision to monitor the
latest fault indication.

2. Press or to scroll the view.

6.1.1.3 Monitoring condition monitoring data

1. Select Main menu > Monitoring/I/O status > Condition monitoring.

2. Press or to scroll the view.

With PCM600 the user can map output signals from condition monitoring related function
blocks to the appropriate destinations.

6.1.2 Measured and calculated values

Measurement view in Main Menu > Measurements shows the momentary actual values
for various power system measurements.
All values show the momentary measurement value and some include demand values
calculated from a set period.

6.1.2.1 Measured values

Measured values can be accessed through the LHMI, WHMI or PCM600.

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Table 15: Measured values

Indicator Description
IA-A Current measured on phase A
IB-A Current measured on phase B
IC-A Current measure on phase C
IG-A Ground current measured
VAB-kV Phase to Phase AB voltage, Source 1
VBC-kV Phase to Phace BC voltage, Source 1
VCA-kV Phase to Phase CA voltage, Source 1
VAB2-kV Phase to Phase AB voltage, Source 2
VBC2-kV Phase to Phase BC voltage, Source 2
VCA2-kV Phase to Phase CA voltage, Source 2
f-Hz Frequency
S-kVA Apparent Power
P-kW Active Power
Q-kVAr Reactive Power
PF Power Factor
I2-A Negative Sequence Current
I1-A Positive Sequence Current
I0-A Zero Sequence Current
V2-kV Negative Sequence Voltage, Source 1
V1-kV Positive Sequence Voltage, Source 1
V0-kV Zero Sequence Voltage, Source 1
V2B-kV Negative Sequence Voltage, Source 2
V1B-kV Positive Sequence Voltage, Source 2
V0B-kV Zero Sequence Voltage, Source 2

6.1.2.2 Using the local HMI for monitoring

1. Select Main menu > Measurements to monitor measured and calculated values.
The list of relay's basic measurements is shown.

2. Scroll the view with and .

6.1.3 Recorded data

The relay is provided with intelligent and flexible functionality that collects different kinds
of data. The recorded data gives substantial information for post fault analysis.
• DFR records
• Fault records
• Events

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6.1.3.1 Creating digital fault records

Normally DFR recordings are triggered by the relay applications but the recording can also
be triggered manually.
1. Select Main menu > DFR records.

2. Select Trig recording with or .

3. Press , change the value with or and press again.

Figure 51: Changing the value

The DFR recorder is now triggered.

6.1.3.2 Monitoring DFR data

Upload individual disturbance recordings from the relay with the PCM600 software to
monitor DFR data.
1. Select Main menu > DFR records.
All the DFR information is listed.

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2. Scroll the view with or .

The following items are listed in the view:
• Number of recordings currently in the relay memory.
• Remaining amount of recordings that fit into the available recording memory.
• Recording memory used in percentage.
• If the periodic triggering function is used, the time to trigger which indicates
the remaining time to the next periodic triggering of the DFR.

Figure 52: Monitoring DFR via the LHMI

6.1.3.3 Controlling and uploading DFR recorder data
DFR recorder data can be controlled and read with PCM600. It can also be uploaded via
WHMI.

For more information, see PCM600 documentation.

6.1.3.4 Monitoring fault records

1. Select Main Menu > Monitoring > Recorded data.

2. To navigate between the fault records, press and .

3. To enter or exit a submenu, press or .

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Figure 53: Monitoring fault records

6.1.3.5 Monitoring events
Event view contains a list of events produced by the application configuration. Each event
takes one view area. The header area shows the currently viewed event index and the total
amount of the events. The most recent event is always first.
1. Select Main Menu > Events.

2. Press to view the first event.

Date, time, device description, object description and event text elements of the
event are shown.

3. Press or to scroll the view.

Figure 54: Monitoring events

6.1.4 Remote monitoring

The relay supports comprehensive remote monitoring.

6.1.4.1 Operating the relay remotely

Use the PCM600 tool and WHMI to operate the relay remotely.
• Read maintenance record and version log.
• Analyze DFR data.
• Create disturbance records.

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• Read relay values.

For more information, see PCM600 documentation.

6.2 Controlling

6.2.1 Controlling circuit breakers or disconnectors

The primary equipment can be controlled via the LHMI with the Open and Close buttons
when the relay is set to local control mode and you are authorized to access control
operations.

1. Press to open or to close the object.

2. Enter the password when prompted.

3. To confirm the operation, select Yes and press .

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Figure 55: Opening circuit breaker

• To cancel the operation, select No and press .

Figure 56: Cancelling operation

The time between selecting the object and giving a control command is
restricted by an adjustable time-out. When an object is selected, the control
command has to be given within this time.

6.3 Resetting relay

6.3.1 Clearing and acknowledging via the local HMI

All messages and indications, including LEDs and latched outputs as well as registers and
recordings can be reset, acknowledged or cleared with the Clear button. Pressing the Clear
button activates a menu for selecting the wanted clearance or reset function. Events and
alarms assigned to alarm LEDs can also be cleared with the Clear button.

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1. Press to activate the Clear view.

All the items that can be cleared are shown:
• Indications and LEDs
• Alarm LEDs
• Recorded data
• Events
• DFR records
• Temperature functions
• Trip lockout functions

Figure 57: Clear view

2. Select the item to be cleared with or .

3. Press , change the value with or and press again.

The item is now cleared.
4. Repeat the steps to clear other items.
Use the button as a shortcut for clearing. The first three-second press
clears the indications. The second three-second press clears the alarm
LEDs.

6.4 Changing the relay functionality

6.4.1 Defining the setting group

6.4.1.1 Activating a setting group
Relay settings are planned in advance for different operation conditions by calculating
setting values to different setting groups. The active setting group can be changed by the
relay application or manually from the menu.

1. Select Main menu > Settings > Setting group > Active group and press .

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Figure 58: Active setting group

2. Select the setting group with or .

Figure 59: Selecting the active setting group

3. Press to confirm the selection or to cancel.

4. Commit the settings.
Remember to document the changes you make.

6.4.1.2 Browsing and editing setting group values

1. Select Main menu > Settings > Settings and press .

2. Select the setting group to be viewed with or and press to confirm the
selection.

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Figure 60: Selecting a setting group

3. To browse the settings, scroll the list with and and to select a setting press
.

4. To browse different function blocks, scroll the list with and and to select a
function block press . To move back to the list, press .
The function block list is shown in the content area of the display. On the left in the
header, you see the current setting group, and on the right the menu path.

5. To browse the parameters, scroll the list with and and to select a parameter,
press .
The setting group values are indicated with #.

Figure 61: Setting group parameter

6. To select a setting group value, press and to edit the value press .

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Figure 62: Selecting the setting group value

Only values within the selected setting group can be changed.

7. Press or to change the value and to confirm the selection.

Figure 63: Editing the setting group value

The active setting group is indicated with an asterisk * .

6.4.2 Activating LEDs

1. Select Main menu > Configuration > Alarm LEDs and press .

2. Select an Alarm LED with or .

3. Press to confirm the selection and to change the Alarm LED mode.

4. Press or to change the value and to confirm the selection.

For more information, see PCM600 documentation.

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Section 7 Troubleshooting

7.1 Fault tracing

7.1.1 Identifying hardware errors

1. Check the module with an error.
Check the relay supervision events in Main menu > Monitoring > relay status >
Self-supervision for a faulty hardware module.
2. Inspect the relay visually.
• Inspect the relay visually to find any physical error causes.
• If you can find some obvious physical damage, contact ABB for repair or
replacement actions.
3. Check whether the error is external or internal.
• Check that the error is not caused by external origins.
• Remove the wiring from the relay and test the input and output operation with
an external test device.
• If the problem remains, contact ABB for repair or replacement actions.

7.1.2 Identifying runtime errors

1. Check the error origin from the relay's supervision events Main menu > Moni-
toring > relay status > Self-supervision.
2. Reboot the relay and recheck the supervision events to see if the fault has cleared.
3. In case of persistent faults, contact ABB for corrective actions.

7.1.3 Identifying communication errors

Communication errors are normally communication interruptions or synchronization
message errors due to communication link breakdown.
• In case of persistent faults originating from relay's internal faults such as component
breakdown, contact ABB for repair or replacement actions.

7.1.3.1 Checking the communication link operation

• To verify communication, check that both LEDs above the RJ-45 communication
port are lit.

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Table 16: Communication LEDs

LED Communication ok
Uplink Steady green light
Communication Flashing yellow light

7.1.3.2 Checking the time synchronization

• Check the time synchronization via LHMI in Main menu > Monitoring > relay
status > Time synchronization.

7.1.4 Running the display test

A short display test is always run, when auxiliary voltage is connected to the relay. The
display test can also be run manually.

• Press simultaneously and .

All the LEDs are tested by turning them on simultaneously. The LCD shows a set of
patterns so that all the pixels are activated. After the test, the display returns to
normal state.

7.2 Indication messages

7.2.1 Internal faults

Internal fault indications have the highest priority on the LHMI. None of
the other LHMI indications can override the internal fault indication.

An indication about the fault is shown as a message on the LHMI. The text Internal
Fault with an additional text message, a code, date and time, is shown to indicate the
fault type.
Different actions are taken depending on the severity of the fault. The relay tries to
eliminate the fault by restarting. After the fault is found to be permanent, the relay stays in
internal fault mode. All other output contacts are released and locked for the internal fault.
The relay continues to perform internal tests during the fault situation.
The internal fault code indicates the type of internal relay fault. When a fault appears,
record the code so that it can be reported to ABB customer service.

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Figure 64: Fault indication

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Table 17: Internal fault indications and codes

Fault indication Fault code Additional information
Internal Fault 2 An internal system error has occurred.
System error
Internal Fault 7 A file system error has occurred.
File system error
Internal Fault 8 Internal fault test activated manually by the user.
Test
Internal Fault 10 Watchdog reset has occurred too many times within an hour.
SW watchdog error
Internal fault 11 The auxiliary supply voltage has dropped to the failure level.
Supply voltage break
Internal fault 32 Settings error has occurred.
Settings error
Internal Fault 40 Faulty Signal Output relay(s) in card located in slot X105.
SO-relay(s),X105
Internal Fault 41 Faulty Signal Output relay(s) in card located in slot X115.
SO-relay(s),X115
Internal Fault 43 Faulty Signal Output relay(s) in card located in slot X100.
SO-relay(s),X100
Internal Fault 44 Faulty Signal Output relay(s) in card located in slot X110.
SO-relay(s),X110
Internal Fault 45 Faulty Signal Output relay(s) in card located in slot X120.
SO-relay(s),X120
Internal Fault 46 Faulty Signal Output relay(s) in card located in slot X130.
SO-relay(s),X130
Internal Fault 50 Faulty Power Output relay(s) in card located in slot X105.
PO-relay(s),X105
Internal Fault 51 Faulty Power Output relay(s) in card located in slot X115.
PO-relay(s),X115
Internal Fault 53 Faulty Power Output relay(s) in card located in slot X100.
PO-relay(s),X100
Internal Fault 54 Faulty Power Output relay(s) in card located in slot X110.
PO-relay(s),X110
Internal Fault 55 Faulty Power Output relay(s) in card located in slot X120.
PO-relay(s),X120
Internal Fault 56 Faulty Power Output relay(s) in card located in slot X130.
PO-relay(s),X130
Internal Fault 57 Faulty ARC light sensor input(s).
Light sensor error
Internal Fault 60 Card in slot X105 is wrong type.
Conf. error,X105
Internal Fault 61 Card in slot X115 is wrong type.
Conf. error,X115
Internal Fault 62 Card in slot X000 is wrong type.
Conf. error,X000
Internal Fault 63 Card in slot X100 is wrong type or does not belong to the
Conf. error,X100 original composition.
Internal Fault 64 Card in slot X110 is wrong type, is missing or does not belong
Conf. error,X110 to the original composition.
Internal Fault 65 Card in slot X120 is wrong type, is missing or does not belong
Conf. error,X120 to the original composition.

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Fault indication Fault code Additional information

Internal Fault 66 Card in slot X130 is wrong type.
Conf. error,X130
Internal Fault 70 Card in slot X105 is faulty.
Card error,X105
Internal Fault 71 Card in slot X115 is faulty.
Card error,X115
Internal Fault 72 Card in slot X000 is faulty.
Card error,X000
Internal Fault 73 Card in slot X100 is faulty.
Card error,X100
Internal Fault 74 Card in slot X110 is faulty.
Card error,X110
Internal Fault 75 Card in slot X120 is faulty.
Card error,X120
Internal Fault 76 Card in slot X130 is faulty.
Card error,X130
Internal Fault 79 LHMI module is faulty. The fault indication may not be seen on
LHMI module the LHMI during the fault.
Internal Fault 80 Error in the RAM memory on the CPU card.
RAM error
Internal Fault 81 Error in the ROM memory on the CPU card.
ROM error
Internal Fault 82 Error in the EEPROM memory on the CPU card.
EEPROM error
Internal Fault 83 Error in the FPGA on the CPU card.
FPGA error
Internal Fault 84 Error in the RTC on the CPU card.
RTC error
Internal Fault 110 UPD card error in X115
UPD card error in X115
Internal Fault 111 UPD self-check fail in X115
UPD self-check fail in X115

7.2.2 Warnings
Warnings are indicated with the text Warning and is additionally provided with the name
of the warning, a numeric code, and the date and time on the LHMI. The warning
indication message can be manually cleared.
If a warning appears, record the name and code so that it can be provided to ABB customer
service.

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Figure 65: Warning

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Table 18: Warning indications and codes

Warning indication Warning code Additional information
Warning 2 An internal system warning condition has occurred.
Internal system warning
Warning 5 A time synch error warning condition has occurred.
Time synch error
Warning 10 A watchdog reset has occurred.
Watchdog reset
Warning 11 The auxiliary supply voltage has dropped too low.
Power down det.
Warning 20 Error when building the IEC 61850 data model.
IEC61850 error
Warning 21 Error in the Modbus communication.
Modbus error
Warning 22 Error in the DNP3 communication.
DNP3 error
Warning 24 Error in the Data set(s).
Dataset error
Warning 25 Error in the Report control block(s).
Report cont. error
Warning 26 Error in the GOOSE control block(s).
GOOSE contr. error
Warning 27 Error in the SCL configuration file or the file is
SCL config error missing.
Warning 28 Too many connections in the configuration.
Logic error
Warning 29 Error in the SMT connections.
SMT logic error
Warning 30 Error in the GOOSE connections.
GOOSE input error
Warning 31 ACT error
ACT error
Warning 32 Error in GOOSE message transmitting or receiving.
GOOSE Tx/Rx error
Warning 33 Error in AFL configuration
AFL error
Warning 40 A new composition has not been
Unack card comp. acknowledged/accepted.
Warning 50 Error in protection communication.
Protection comm.
Warning 112 UPD Voltage Low in X115
UPD Voltage Low in X115
Warning 113 UPS Communication error in X115
UPS Communication error in X115
Warning 114 UPS Command failure in X115
UPS Command failure in X115
Warning 115 Breaker Operation Failure, possibly due to incorrect
Breaker Operation Failure setting for UPD or UPD profile setting.

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7.2.3 LED and display messages

Usually when a LED is lit, an indication is shown on the LHMI and event 10 is generated.

7.3 Correction procedures

7.3.1 Rebooting the software

1. Select Main menu > Configuration > General > Software reset and press .

2. Change the value with or and press .

7.3.2 Restoring factory settings

In case of configuration data loss or any other file system error that prevents the relay from
working properly, the whole file system can be restored to the original factory state. All
default settings and configuration files stored in the factory are restored.

1. Select Main menu > Configuration > General > Factory setting and press .

2. Set the value with or and press .

3. Confirm by selecting Yes with or and press again

The relay restores the factory settings and restarts. Restoring takes 1-3 minutes.
Confirmation of restoring the factory settings is shown on the display a few seconds, after
which the relay restarts.

Avoid unnecessary restoring of factory settings, because all the parameter

settings that are written earlier to the relay will be overwritten with the
default values. During normal use, a sudden change of the settings can
cause a protection function to trip.

7.3.3 Setting the password

If user authorization is off or the user is logged in as an administrator, user passwords can
be set via the LHMI or WHMI or with PCM600.

The password can be set to write mode with engineer or operator rights but
the changes to the password are not saved.

For more information, see User authorization.

1. Select Main menu > Configuration > Authorization.

2. Select the password to be reset with or .

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3. Press , change the password with or and press again.

4. Repeat steps 2 and 3 to set the rest of the passwords.

7.3.4 Identifying relay application problems

• Check that the function is on.
• Check the blocking.
• Check the mode.
• Check the measurement value.
• Check the connection to trip and DFR functions.
• Check the channel settings.

7.3.4.1 Inspecting the wiring

The physical inspection of wiring connections often reveals the wrong connection for
phase currents or voltages. However, even though the phase current or voltage connections
to relay terminals might be correct, wrong polarity of one or more measurement
transformers can cause problems.
• Check the current or voltage measurements and their phase information from Main
menu > Measurements.
• Check that the phase information and phase shift between phases is correct.
• Correct the wiring if needed.
• Check the actual state of the connected binary inputs from Main menu > Moni-
toring > I/O status > Binary input values.
• Test and change the relay state manually in Main menu > Tests > Binary outputs.

7.3.4.2 Sample data interruptions

Occasionally relays can receive corrupted or faulty measurement data during runtime. In
these cases the operation system halts the corresponding application execution until
correct data is received. In case of permanent faults, the measurement chain should be
checked to remove the origin of the faulty measurement data.

In case of persistent faults originating from relay's internal faults, contact

ABB for repair or replacement actions.

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Commissioning

Section 8 Commissioning

8.1 Commissioning checklist

It is recommended that personnel familiarize themselves with the relay and its
functionality before starting the commissioning work. It is most highly recommended to
install communications software on the PC to be used during commissioning and test
communications with an relay before going to the site.
Most utilities have a checklist used during the commissioning process. Such a list should
include the following:
• All necessary station drawings such as single line and wiring diagrams
• The correct version of the technical manual for the relay version to be tested
• Setting software and connectivity packages that work with the relay version to be
tested
• Identify and install any additional software required.
• Verified relay settings either on paper or in electronic format. Both settings and
connection logic should be well documented
• The correct cable to connect a PC to the relay's communication port. The RJ-45 port
supports any CAT 5 Ethernet cable but the recommended type is STP
• The name and phone number of a person to contact if there is trouble with operation
or settings in the relay
• Proper test equipment and all necessary connection cables
• Obtain information about the switchgear at the work site and any special aspects of it
• Information on how to operate in emergency situations: first aid, safety materials, exit
routes, etc.

8.2 Checking the installation

8.2.1 Checking the power supply

Check that the auxiliary supply voltage remains within the permissible input voltage range
under all operating conditions. Check that the polarity is correct before powering the relay.

8.2.2 Checking CT circuits

The CTs must be connected in accordance with the terminal diagram provided with the
relay, both with regards to phases and polarity. The following tests are recommended for
every primary CT or CT core connected to the relay.

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• Primary injection test to verify the current ratio of the CT, the correct wiring up to the
protection relay and correct phase sequence connection (that is A, B, C.)
• Polarity check to prove that the predicted direction of secondary current flow is
correct for a given direction of primary current flow. This is an essential test for the
proper operation of the directional function, protection or measurement in the relay.
• CT secondary loop resistance measurement to confirm that the current transformer
secondary loop dc resistance is within specification and that there are no high
resistance joints in the CT winding or wiring.
• CT excitation test to ensure that the correct core in the CT is connected to the relay.
Normally only a few points along the excitation curve are checked to ensure that there
are no wiring errors in the system, for example due to a mistake in connecting the
CT's measurement core to the relay.
• CT excitation test to ensure that the CT is of the correct accuracy rating and that there
are no short circuited turns in the CT windings. Manufacturer's design curves should
be available for the CT to compare the actual results.
• Grounding check of the individual CT secondary circuits to verify that each
three-phase set of main CTs is properly connected to the station ground and only at
one electrical point.
• Insulation resistance check.
• Phase identification of CT shall be made.
Both primary and secondary sides must be disconnected from the line and
relay when plotting the excitation characteristics.

If the CT secondary circuit is opened or its earth connection is missing or

removed without the CT primary being de-energized first, dangerous
voltages may be produced. This can be lethal and cause damage to the
insulation. The re-energizing of the CT primary should be prohibited as
long as the CT secondary is open or unearthed.

8.2.3 Checking VT circuits

Check that the wiring is in strict accordance with the supplied connection diagram.

Do not continue before any errors are corrected.

Test the circuitry.

• Polarity check
• VT circuit voltage measurement (primary injection test)
• Grounding check
• Phase relationship
• Insulation resistance check

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The polarity check verifies the integrity of circuits and the phase relationships. The
polarity should be measured as close to the relay as possible to ensure that most of the
wiring is also checked.
The primary injection test verifies the VT ratio and the wiring all the way through from the
primary system to the relay. Injection must be performed for each phase-to-neutral circuit
and each phase-to-phase pair. In each case voltages in all phases and neutral are measured.

8.2.4 Checking binary input and output circuits

8.2.4.1 Binary input circuits
Preferably, disconnect the binary input connector from the binary input cards. Check all
connected signals so that both input level and polarity are in accordance with the relays
specifications.

8.2.4.2 Binary output circuits

Preferably, disconnect the binary output connector from the binary output cards. Check all
connected signals so that both load and voltage are in accordance with the relay
specifications.

8.2.5 Checking optical connections

Check that the Tx and Rx optical connections are correct.

A relay equipped with optical connections requires a minimum depth of

180 mm for plastic fiber cables and 275 mm for glass fiber cables. The
allowed minimum bending radius has to be checked from the optical cable
manufacturer.

8.3 Authorizations

8.3.1 User authorization

The user categories have been predefined for LHMI and WHMI, each with different rights
and default passwords.
Passwords are settable. LHMI password must be at least four and WHMI password at least
nine characters. Maximum number of characters is 20 for the WHMI password and 8 for
the LHMI password. Only the following characters are accepted:
• Numbers 0-1
• Letters a-z, A-Z
• Space
• Special characters !"#%&'()*+´-./:;<=>?@[\]^_`{|}~
User authorization is disabled by default and can be enabled via the LHMI
or WHMI Main Menu > Configuration > Authorization.

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Table 19: Predefined user categories

LHMI
Username WHMI password User rights
password
VIEWER 0001 remote0001 Only allowed to view
OPERATOR 0002 remote0002 Authorized to make operations
ENGINEER 0003 remote0003 Allowed to change relay parameters, but no
operation rights
ADMINISTRATOR 0004 remote0004 Full access

For user authorization for PCM600, see PCM600 documentation.

8.4 Using PCM600

8.4.1 Setting the communication between relays and PCM600

The communication between the relay and PCM600 is independent of the used
communication protocol within the substation or to the NCC. It can be seen as a second
channel for communication.
The communication media is always Ethernet and the protocol is TCP/IP.
Each relay has an Ethernet front connector for PCM600 access. Depending on the station
concept and the used station protocol, additional Ethernet interfaces may be available on
the rear side of the relay. All Ethernet interfaces can be used to connect PCM600.
When an Ethernet based station protocol is used, the PCM600 communication can use the
same Ethernet port and IP address. The relay is able to separate the information belonging
to the PCM600 dialog.
To configure the physical connection and the IP addresses:
1. Set up or get the IP addresses of the relays.
2. Set up the PC for a direct link or connect the PC or workstation to the network.
3. Configure the relay IP addresses in the PCM600 project for each relay. The
addresses are used for communication by the OPC interface of PCM600.

8.4.1.1 Communication options

Two options are available for the connection of PCM600 to the relay.
• Direct point to point link between PCM600 and the relay
• Indirect link via a station LAN or from remote via a network

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Point to point link

The relay is provided with an RJ-45 connector on the LHMI. The connector is mainly for
configuration and setting purposes. Any Ethernet cable can be used but it is recommended
to use the shielded twisted pair cable.
The relay has a DHCP server for the front interface. The DHCP server assigns an IP
address to the computer connected to the front interface. The computer's LAN interface
has to be configured to obtain the IP address automatically.

LAN or WAN network

In TCP/IP networking, a LAN is often but not always implemented as a single IP subnet.
A router connects LANs to a WAN. In IP networking, the router maintains both a LAN
address and a WAN address. Design considerations for computer networks cover a wide
range of topics including layout, capacity planning, and security. To some extent, the
network configuration also depends on user preferences.

8.4.1.2 Setting communication parameters

The IP address and the corresponding mask can be set via the LHMI for the rear port. The
front port uses a fixed IP address 192.168.0.254. The front port also uses DHCP.
Each Ethernet interface has a factory default IP address when the complete relay is
delivered.

Setting the front communication

To set up a standard PC with Microsoft Windows operating system for front
communication:
1. To open Network Connections, click Start, point to Settings, click Control Panel,
and then double-click Network Connections.
2. Double-click the connection that you want to configure, and then click Properties.
3. Select the TCP/IP protocol from the list of configured components using this
connection and click Properties.

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Figure 66: Selecting TCP/IP protocol

4. Select Obtain an IP address automatically and Obtain DNS server address
automatically.

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Figure 67: Obtaining IP address automatically

5. Close all open windows by clicking OK and start PCM600.
Administrator rights are requested to change the configuration as described
above.

Setting the rear communication

To set up a standard PC with MicroSoft Windows operating system for rear
communication:
1. To open Network Connections, click Start, point to Settings, click Control Panel,
and then double-click Network Connections.
2. Double-click the connection that you want to configure, and then click Properties.
3. Select the TCP/IP protocol from the list of configured components using this
connection and click Properties.

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Figure 68: Selecting TCP/IP protocol

4. Choose Use the following IP address. Enter an IP address and a subnet mask. Make
sure that the IP address is unique, that is not used by any other relay on the network.

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Figure 69: Setting IP address and subnet mask

5. Close all open windows by clicking OK and start PCM600.
Administrator rights are requested to change the configuration as described
above.

Setting relay's IP address in PCM600

In PCM600 the relay's IP address can be defined via the first window of the wizard by
including a new relay in the project or by entering the relay's IP address in the Object
Properties window.
1. Select the relay to which you want to define the IP address.
2. Open the Object Properties window.
3. Place the cursor in the IP Address row and enter the IP address.

The used method depends on the time at which the IP address is available. Defining IP
address in the Object Properties windows allows changing the IP address at any time.

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8.5 Setting relay and communication

8.5.1 Communication settings

The relay is provided with an RJ-45 connector on the LHMI. The connector is mainly used
for configuration and setting purposes. The fixed IP address for the front port is
192.168.0.254.
Different communication ports are available via optional communication modules.
Ethernet RJ-45 and optical Ethernet LC are the two rear port Ethernet communication
options. Rear port Ethernet is intended for station bus communication. Communication
protocols used via Ethernet ports are IEC 61850-8-1, DNP3 TCP/IP and Modbus TCP/IP.

For more information, see the communication protocol manuals and the
technical manual.

If the protocol does not operate as expected, check that other serial
protocols are not using the COM port.

DNP3 protocol ignores any parity setting in the COM settings group;
DNP3 is defined as an 8 bit/no parity protocol with a 16-bit CRC every 16
bytes. This provides better error detection than parity.

8.5.1.1 Serial communication ports and drivers

Depending on the hardware configuration, the relay can be equipped with one or several
UART-based serial communication ports. The communication ports can be either galvanic
(RS-485, RS-232) or fibre-optic. The relay uses serial ports and drivers as different types
of serial communication protocol links.
Serial ports are called COM1, COM2 and so on, depending on the number of serial ports
in the relay hardware configuration. Each COM port driver has its own setting parameters
found via the LHMI in Configuration > Communication > COMn (n= 1,2,…).
Since the same relay usually supports a variety of different communication hardware
options, all COM port driver setting parameters are not relevant for every communication
hardware type.

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Table 20: COM port parameters in different HW options

COM parameter Values Hardware options
Serial mode 0 = RS485 2wire For galvanic modes. RS-type depends
on the communication card used.
1 = RS485 4wire
2 = RS232 no handshake
3 = RS232 with handshake
CTS Delay 0…60000 [ms] RS232 mode only
RTS Delay 0…60000 [ms] RS232 mode only
Baudrate 1 = 300 All modes
2 = 600
3 = 1200
4 = 2400
5 = 4800
6 = 9600
7 = 19200
8 = 38400
9 = 57600
10 = 115200 [bits/sec]

In addition to setting the COM parameter, a communication card with

many hardware options may also require changing the jumpers on the
communication card.

Connection of a serial communication protocol to a specific serial port

The serial communication protocol (instance) settings include a setting parameter called
Serial port n (n = protocol instance number). Setting options for this parameter are COM1,
COM2 and so on. Select the desired serial port for the protocol instance through this
parameter.

All link setting parameters are not found in the COMn settings. Additional
link setting parameters are found in the setting parameter list of the used
serial protocol, since some serial protocol standards allow changes in link
parameters, while other protocol standards do not.

8.5.1.2 Serial link diagnostics and monitoring

Serial communication diagnostics and monitoring is divided between the serial link driver
and the serial communication protocol. The lower level physical and protocol-independent
aspects of the UART-based serial communication are monitored in the serial link driver.
Diagnostic counters and monitoring values are found via the LHMI in Monitoring >
Communication > COMn (n= 1,2,…).
Depending on the communication protocol, the serial driver software receives single
characters or complete protocol frames, based on the frame start/stop characters or on
timing.

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Monitoring data for a COM channel can be divided into basic and detailed diagnostic
counters.
Table 21: Monitoring data for a COM channel
Parameter Range Type Description
Characters 0…2147483646 Basic Number of separate characters received.
received
Frames received 0…2147483646 Basic Number of successfully received complete
frames.
Frames discarded 0…2147483646 Basic Number of frames discarded.
Frames 0…2147483646 Basic Number of frames transmitted.
transmitted
CD Lost 0…2147483646 Detailed Number of carrier-detect signal lost during
receive.
Collision 0…2147483646 Detailed Number of collisions detected.
CTS Timeout 0…2147483646 Detailed Number of clear-to-send signal timeout
errors.
Transmission 0…2147483646 Detailed Number of transmission timeout errors.
timeout
Parity errors 0…2147483646 Detailed Number of character parity errors detected.
Overrun errors 0…2147483646 Detailed Number of character overrun errors detected.
Framing errors 0…2147483646 Detailed Number of character framing errors detected.
Link status 1 1 = Reset counters (by entering 1 the
diagnostic counters are reset)

Whether all diagnostic counters are relevant depends on the communication hardware and
communication protocol.

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Table 22: Basic diagnostic counters

Counter Function
Characters received Counts all incoming non-erroneous characters. This
counter operates regardless of if the serial driver is
set to detect a whole protocol link frame or just
separate characters.
Frames received Counts all protocol specific non-erroneous frames
received. Protocol-specific frames can be based on
timing (for example, Modbus RTU) or on special
start and stop characters (for example, Modbus
ASCII).
Frames discarded Counts all protocol-specific erroneous frames
received. If the driver detects an error while
receiving a frame, the frame is automatically
discarded. This also means that the protocol in
question will never receive a faulty frame from the
driver. When this counter is increased, one of the
detailed error counters is also incremented.
Frames transmitted Counts all protocol-specific frames transmitted from
the COM channel.

Table 23: Detailed error counters

Counter Function
CD Lost In RS-232 handshake mode, characters are to be
received as long as Carrier Detect (CD) signal is
active. This counter is incremented if the CD signal
is lost during reception.
Collision Counts transmission collisions. Used in RS-485
mode by some protocols where transmissions could
collide. For example DNP3 unsolicited mode.
CTS Timeout. In RS-232 handshake mode the Clear To Send
(CTS) signal is not received as reply to this device
Request To Send (RTS) signal.
Transmission timeout. In RS-232 handshake mode. If the CTS signal goes
inactive during transmission then the transmission is
halted. Transmission will be resumed when CTS
goes active again. The whole frame transmission
must anyhow be ready within a specified time. If this
timeout elapses then this counter is incremented.
Result will be that the end of the frame is not being
transmitted out.
Parity errors Counts parity errors detected in characters.
Overrun errors Counts overrun errors detected in characters.
Framing errors Counts framing errors detected in characters

Table 24: Link status

Parameter Function
Link status Link status in write direction: By writing 1 to the
parameter the diagnostic counters are reset to 0.
Link status in monitoring direction: If the driver is in
use by any communication protocol, the monitoring
value shows 1. In other case, the value is 0.

8.5.1.3 Defining Ethernet port settings

1. Select Main menu > Configuration > Communication > Ethernet > Rear port.

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2. Define the settings for the Ethernet port.

• IP address
• Subnet mask
• Default gateway of the optional rear port Ethernet connector

8.5.1.4 Defining serial port settings

The serial COM setting is not currently supported.
1. Select Main menu > Configuration > Communication > COM1 or COM2.
2. Define the settings for the serial port.
It is possible to change the general serial communication parameters per port. Select
fibre or galvanic mode with the proper baud rate, parity and delays depending on the
system architecture and the selected physical communication port.

8.5.1.5 Setting communication protocol parameters

1. Select Main menu > Configuration > Communication > [protocol].
2. Change the protocol specific settings.
Possible settings to be changed are, for example, the selected communication port,
address and link mode.

8.5.1.6 Connecting jumper connectors

See the technical manual for details on jumper connectors.

8.5.1.7 Communication checklist

1. Check the physical connections.
2. After the settings are changed, allow them to be stored in NVRAM (!S on LHMI).
Reboot the unit to allow the setting changes to take effect in DNP3.
3. If the WHMI connection is missing, enable the relay's WHMI setting and prevent
the Web browser from attempting to use a proxy Internet Options > Connections
> LAN Settings > Advanced > Exceptions (for example 192.168.*.*;).
4. Ping the unit.
Verify that the relay has been correctly configured to accept messages with the
master's IP address, DNP3 address, and so on.
5. Use the LHMI to enable the WHMI configuration if a ping response is received from
the unit but the WHMI does not respond.
a Clear the browser of cached pages.
b Logout and log back in.
6. Install a TCP packet sniffer to see what is happening on the network.
7. Clear the ARP table.

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8. See the relay's technical manual to determine if the jumpers on the communication
board are correct.
If this protocol does not operate as expected, check that other serial
protocols are not using the COM port also.

DNP3 protocol ignores any parity setting in the COM settings group;
DNP3 is defined as an 8 bit/no parity protocol with a 16-bit CRC every 16
bytes. This provides better error detection than parity.

8.5.2 Setting the local HMI

8.5.2.1 Changing the local HMI language

1. Select Main menu > Language and press .

2. Change the language using or .

3. Press to confirm the selection.

4. Commit the changes.

Figure 70: Changing the LHMI language

To change the language using a shortcut, press and simultaneously

anywhere in the menu.

8.5.2.2 Adjusting the display contrast

Adjust the display contrast anywhere in the menu structure to obtain optimal readability.

• To increase the contrast, press simultaneously and .

• To decrease the contrast, press simultaneously and .

The selected contrast value is stored in the non-volatile memory if you are logged in and
authorized to control the relay. After an auxiliary power failure, the contrast is restored.

8.5.2.3 Changing display symbols

To switch between the display symbols IEC 61850 and ANSI:

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1. Select Main Menu > Configuration > HMI > FB naming convention and press
.

2. Change the display symbols with or .

3. Press to confirm the selection.

The relay has to be rebooted if the WHMI display symbols are changed.
With the LHMI, the change takes effect immediately.

8.5.2.4 Changing the default view

The default view of the display is Measurements unless set otherwise.

1. Select Main menu > Configuration > HMI > Default view and press .

2. Change the default view with or .

3. Press to confirm the selection.

8.5.2.5 Setting the system time and time synchronization

1. Select Main menu > Configuration > Time > System time and press .

2. Select the parameter with or .

3. Press , change the value with or and press again.

4. Repeat steps 2 and 3 to set the rest of the system time parameters.
5. Select Main menu > Configuration > Time > Synchronization > Synch source
and press .

6. Select the time synchronization source with or .

7. Press to confirm the selection.

Setting the daylight saving time

The relay can be set to determine the correct date for the DST shift every year. The UTC
time is used to set the DST.
1. Set the DST on day and DST off day parameters to define on which week day the
time shift occurs.
2. Set the DST on date and DST off date parameters to define on which month and week
the time shift occurs.
The DST on/off date must precede the selected DST on/off day and be within the same
week as the DST shift.

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Table 25: DST change on Sunday

Day of the DST shift DST on/off date
First Sunday of the month 1
Second Sunday of the month 8
Third Sunday of the month 15
Fourth Sunday of the month 22
Last Sunday, if the month has 30 days 24
Last Sunday, if the month has 31 days 25

For example, if the DST is observed from the last Sunday in March to the last Sunday in
October and the time shift occurs at 01:00 UTC, the setting parameters are:

DST on time: 01:00

DST on date: 25.03
DST on day: Sun
DST off time: 01:00
DST off date: 25.10
DST off day: Sun

Set the DST on day and DST off day to "not in use" to determine the exact
date and time for the DST shift. Repeat the setting yearly, as the time for
the DST shift is not on the same date every year.

To disable the DST, set the DST offset parameter to "0 min".

8.5.3 Setting relay parameters

8.5.3.1 Defining settings groups

Selecting a setting group for editing

1. Select Main Menu > Settings > Edit setting group.

2. Select the setting group to be edited with or .

3. Press to confirm the selection.

4. Edit the settings.

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Figure 71: Selecting a setting group

Browsing and editing setting group values

1. Select Main menu > Settings > Settings and press .

2. Select the setting group to be viewed with or and press to confirm the
selection.

Figure 72: Selecting a setting group

3. To browse the settings, scroll the list with and and to select a setting press
.

4. To browse different function blocks, scroll the list with and and to select a
function block press . To move back to the list, press .
The function block list is shown in the content area of the display. On the left in the
header, you see the current setting group, and on the right the menu path.

5. To browse the parameters, scroll the list with and and to select a parameter,
press .
The setting group values are indicated with #.

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Figure 73: Setting group parameter

6. To select a setting group value, press and to edit the value press .

Figure 74: Selecting the setting group value

Only values within the selected setting group can be changed.

7. Press or to change the value and to confirm the selection.

Figure 75: Editing the setting group value

The active setting group is indicated with an asterisk * .

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Activating a setting group

Relay settings are planned in advance for different operation conditions by calculating
setting values to different setting groups. The active setting group can be changed by the
relay application or manually from the menu.

1. Select Main menu > Settings > Setting group > Active group and press .

Figure 76: Active setting group

2. Select the setting group with or .

3. Press to confirm the selection or to cancel.

Figure 77: Selecting the active setting group

4. Commit the settings.
Remember to document the changes you make.

8.5.3.2 Relay parametrization

Relay parameters are set via the LHMI, WHMI or PCM600.
Setting parameters need to be calculated according to the electrical network conditions and
the electrical characteristics of the protected equipment. The relay's settings need to be
verified before the relay is connected to a system.

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Document all changes to parameter settings.

For more information, see PCM600 documentation.

8.5.3.3 Defining DFR channel settings

1. Select Main Menu > Configuration > DFR > Channel settings.

2. Press or to scroll the view.

3. To change channel settings, press .

Analog channels are fixed except channel 4 which is selectable based on the Ground CT
option.

8.5.3.4 Configuring analog inputs

1. Select Main Menu > Configuration > Analog inputs and press .

2. Select the analog input to be configured with or .

3. Press , change the value with or and press again.

• For CTs, the secondary current and primary current need to be set to the
correct values.

8.6 Testing relay operation

The relay has to be in the test mode before the digital outputs and certain output signals of
protection and other functions can be activated.

8.6.1 Selecting the test mode

The test mode can be activated using the LHMI. The green Normal LED will be flashing
to indicate that the test mode is activated.

The Normal LED also flashes if the relay detects a diagnostic failure.
Check the test mode setting and the relay's IRF alarm contact status to find
the reason for the failure.

The test mode is useful for simulated testing of functions and outputs without providing
current inputs.

1. Select Main menu > Tests > relay test > Test mode and press .

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Figure 78: Entering test mode

2. Select the test mode status with or .

3. Press to confirm the selection.

If you do not cancel the test mode, it remains on and the Normal LED
remains flashing.

8.6.2 Testing the digital I/O interface

To activate or deactivate, for example, a digital output:
1. Select Main menu > Tests > Binary Outputs > X100 (PSM) > X100-Output 1
and press .

2. Select the value with or .

3. Press to confirm the selection.

If the optional BIO-module (X110) is included in the relay, the menu path
could also be Main menu > Tests > Binary Outputs > X110 (BIO1) >
<binary output>

8.6.3 Testing functions

To activate or deactivate an output signal for protection or other function:
1. Select Main Menu > Tests > Function tests > Current protection > PHLPTOC
and press .

2. Select the output signal to be activated or deactivated with or and press .

3. To deactivate all output signals for the function, select Reset with or and
press .

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8.6.4 Selecting the internal fault test

The internal fault may be tested by using the LHMI. When enabling the test, the internal
relay fault output contact is activated, the green Normal LED will be blinking and internal
fault test indication is shown on the LHMI. See Technical Manual for internal relay fault
output contact location.

Differing from real internal fault situation, the other output contacts are not
released and locked during the test. In other words, protection functions
can operate and trip the outputs when the internal fault is tested.

1. Select Main menu > Tests > relay test > Internal fault test and press .

Figure 79: Internal fault test

2. Select the value with or .

3. Press to confirm the selection.

8.7 ABB Product Data Registration

The ABB Product Data Registration feature traces composition changes related to the
relay's SW or HW.
After a composition change, an LCT indication is seen on the LHMI at the relay start-up.
At this point, PCM600 should be connected to the relay as it reads the changed data from
the relay. The LCT indication is cleared in the same way as other indications. If PCM600
is not connected to the relay, the indication is seen again after the relay's reboot.

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Figure 80: LCT indication

The number of composition changes can be seen from the Composition changes parameter
in Main Menu > Monitoring > relay status.

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Glossary

Section 9 Glossary

100BASE-FX A physical media defined in the IEEE 802.3 Ethernet standard for
local area networks (LANs) that uses fibre-optic cabling
100BASE-TX A physical media defined in the IEEE 802.3 Ethernet standard for
local area networks (LANs) that uses twisted-pair cabling category
5 or higher with RJ-45 connectors
ANSI American National Standards Institute
ARP Address Resolution Protocol
CAT 5 A twisted pair cable type designed for high signal integrity
COMTRADE Common format for transient data exchange for power systems.
Defined by the IEEE Standard.
Connectivity Software that helps the user to define right connectivity package
Package versions for different applications and tools
Manager
CPU Central processing unit
CRC Cyclical redundancy check
CSV Comma-separated values
CT Current transformer
DFR Digital fault recorder
DHCP Dynamic Host Configuration Protocol
DNP3 A distributed network protocol originally developed by Westronic.
The DNP3 Users Group has the ownership of the protocol and
assumes responsibility for its evolution.
DST Daylight saving time
EEPROM Electrically erasable programmable read-only memory
EMC Electromagnetic compatibility
Ethernet A standard for connecting a family of frame-based computer
networking technologies into a LAN
FB Function block
Firmware System software or hardware that has been written and stored in a
device's memory that controls the device
FPGA Field programmable gate array

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GOOSE Generic Object Oriented Substation Event

HMI Human-machine interface
HW Hardware
IEC 61850 International standard for substation communication and modelling
IEC 61850-8-1 A communication protocol based on the IEC 61850 standard
series and a standard for substation modelling
relay Intelligent electronic device
IP Internet protocol
IP address A set of four numbers between 0 and 255, separated by periods.
Each server connected to the Internet is assigned a unique IP
address that specifies the location for the TCP/IP protocol.
LAN Local area network
LC Connector type for glass fiber cable
LCD Liquid crystal display
LCP Liquid crystal polymer
LCT Life cycle traceability
LED Light-emitting diode
LHMI Local human-machine interface
Modbus A serial communication protocol developed by the Modicon
company in 1979. Originally used for communication in PLCs and
RTU devices.
Modbus Modbus RTU protocol which uses TCP/IP and Ethernet to carry
TCP/IP data between devices
NCC Network control center
OPC Object linking and embedding for process control
PA Polyamide
PBT Polybutylene terephthalate
PC Personal computer; Polycarbonate
PCM600 Protection and Control relay Manager
R/L Remote/Local
RAM Random access memory
RJ-45 Galvanic connector type
RoHS Restriction of the use of certain hazardous substances in electrical
and electronic equipment
ROM Read-only memory

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RTC Real-time clock

Rx Receive/Received
SCL Substation configuration language
SMT Signal Matrix Tool in PCM600
STP Shielded twisted-pair
SVG Scalable vector graphics
SW Software
TCP/IP Transmission Control Protocol/Internet Protocol
Tx Transmit/Transmitted
UTC Coordinated universal time
VT Voltage transformer
WAN Wide area network
WHMI Web human-machine interface

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