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ABB REF 542plus User Manual

ABB REF 542plus
134 pages
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REF 542plusREF 542plus
Multifunction Protection and Switchgear Control Unit
Operator's manual

Table of Contents

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ABB REF 542plus Specifications

General IconGeneral
CategoryControl Unit
Frequency50/60 Hz
DisplayLCD
Communication ProtocolsIEC 61850, Modbus, DNP3
InputsDigital and Analog
OutputsRelay Outputs
Power Supply24-48 V DC / 100-240 V AC
Protection FunctionsOvercurrent, Earth Fault
Protection DegreeIP20
Storage Temperature-40°C to +70°C
Humidity5 to 95 % non-condensing

Summary

Introduction

This manual

Manual overview and purpose.

Product documentation

List of related product documents and their IDs.

Safety information

HMI features

Control area

Section of HMI for primary object control and related information.

Info and Menu area

Section of HMI for information display and menu navigation.

Control modes

Changing the control modes

Step-by-step guide to switch between control modes using E-Key.

Viewing and resetting alarms

Resetting alarms

Steps to acknowledge and reset alarms.

Viewing and changing protection settings

Changing the protection settings

Procedures for modifying protection parameters and modes.

REF 542plus commissioning mode

Analog input commissioning page

Displays analog measurements during commissioning.

Analog output 4-20 mA commissioning page

Setting analog output values during commissioning.

Connection to PC

Downloading a configuration

Process of transferring configuration files to the unit via PC.

Troubleshooting

Error messages

Explains common error messages and troubleshooting steps.

Appendix A: Connection diagrams

Analog Inputs

Details on connecting analog input signals.

Binary inputs and outputs

Information on connecting digital I/O modules.

Appendix B: Menu structure

Service page

Menu for accessing service-related information.

Appendix D: Self Supervision

Software supervision

Details on software fault levels and handling.

Appendix E: Telnet protocol

Configuring the Telnet Terminal

Steps to set up IP properties for Telnet connection.

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