ABB REU 523 Technical Reference Manual page 4

REU 523
4
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual
4.1.8.1. Function ............................................................. 30
4.1.8.2. Disturbance recorder data ................................. 30
4.1.8.3. Control and indication of disturbance recorder
4.1.8.4. Triggering ........................................................... 32
4.1.8.5. Settings and unloading ...................................... 32
4.1.8.6. Event code of the disturbance recorder ............. 32
4.1.9. Recorded data of the last events ..................................... 32
4.1.10.External serial communication ......................................... 33
4.1.10.1.Communication ports ......................................... 33
4.1.10.2.IEC 60870-5-103 remote communication
4.1.10.3.Event codes ....................................................... 37
4.1.10.4.SPA bus communication protocol parameters ... 39
4.1.11.Self-supervision (IRF) system .......................................... 46
4.1.12.Relay parameterization .................................................... 46
4.2. Design description ...................................................................... 47
4.2.1. Input/output connections ................................................. 47
4.2.2. Serial communication connections .................................. 49
4.2.3. Technical data ................................................................ 50
5. Ordering information ............................................................. 54
6. References .............................................................................. 55
7. Index ........................................................................................ 56
8. Abbreviations ......................................................................... 59
9. Check lists ......................................................................... 60
10.Customer feedback ............................................................... 63
status ................................................................. 31
protocol .............................................................. 34
1MRS 750942-MUM