3
Contents
Copyrights ................................................................................. 5
1. Introduction..............................................................7
1.1. This manual.............................................................. 7
1.2. Use of symbols ......................................................... 7
1.3. Intended audience ..................................................... 7
1.4. Product documentation ............................................... 8
1.5. Document revisions.................................................... 8
2. Safety information.....................................................9
3. General ..................................................................11
4. Functions ............................................................... 19
4.1. Configuration .......................................................... 19
4.2. Measurement .......................................................... 19
4.2.1. Directly measured values .............................. 20
4.2.2. Calculated values ........................................ 20
4.2.3. Other values ............................................... 20
4.2.4. Monitoring and self-diagnosis......................... 21
4.3. Protection ............................................................... 21
4.4. Control................................................................... 22
4.5. Event recording ....................................................... 23
4.6. Fault recorder.......................................................... 23
4.7. Time synchronization................................................ 24
4.8. Interface to the primary process ................................. 25
4.8.1. Analog inputs .............................................. 25
4.8.2. Binary inputs and outputs.............................. 26
4.9. Interfacing a station automation system ....................... 27
4.10. Embedded Web Server........................................... 28
4.11. CAN Open (only for ABB switchgear companies) .......... 29
4.12. ABB Product Data Registration .................................. 30
5. Construction........................................................... 31
5.1. Base unit versions ................................................... 31
5.2. Mounting and installation........................................... 34
5.3. HMI ....................................................................... 34
6. Technical data ........................................................37
6.1. Analog inputs .......................................................... 37
6.1.1. Measurements ............................................ 37
6.1.2. Protection ................................................... 37
6.1.3. Analog input modules ................................... 38
6.1.4. Reaction time.............................................. 38
6.2. Protection functions technical data.............................. 39
Multifunction Protection and Switchbay Control
Unit
Technical Reference Manual
REF 542plusREF 542plus
1MRS755859
Issued: 29.03.2002
Version: H/01.07.2009