ABB REX 521 Technical Reference Manual, General page 4

REX 521
4
Protection Relay
Technical Reference Manual, General
4.1.12.4.SPA bus ............................................................. 25
4.1.12.5.LON bus ............................................................ 26
4.1.12.6.IEC 60870-5-103 bus ........................................ 28
4.1.13.Time synchronization ....................................................... 29
4.1.14.Display panel (HMI) ......................................................... 29
4.1.15.Indication LEDs ............................................................... 30
4.2. Design description ...................................................................... 30
4.2.1. Technical data ................................................................. 30
4.2.2. Terminal diagram of the REX 521: Basic ......................... 34
4.2.3. Terminal diagram of the REX 521: Medium ..................... 35
4.2.4. Terminal diagram of the REX 521: High .......................... 36
4.2.5. Terminal diagram of the REX 521: Sensor ...................... 37
4.2.6. Terminal connections ...................................................... 38
5. Service ..................................................................................... 40
6. Ordering information ............................................................. 41
7. Revision history of the REX 521 ........................................... 42
7.1. Revision identification ................................................................. 42
7.2. Changes and additions to earlier released revision A ................ 42
7.3. Configuration, setting and SA system tools ................................ 42
8. References .............................................................................. 43
9. Index ........................................................................................ 44
10.Customer feedback ............................................................... 46
11.Appendix A: The IEC 60870-5-103 bus ................................ 48
11.1.Functions supported by the REX 521 ........................................ 48
11.2.The general principle of application data mapping ..................... 48
11.3.The principle of the protection functions mapping ...................... 49
11.4.Class 2 data ............................................................................... 49
11.5.Default mappings ....................................................................... 50
12.Appendix B: Parameters visible only in the relay .............. 57
13.Appendix C: Parameters which cause reset ....................... 58
14.Appendix D: Parameters which require test mode ............ 60
5HYLVLRQ KLVWRU\
Version B/5.7.2002:
- changes in chapters "General", "Hardware versions", "Analogue channels", "Setting the rated values
for the protected unit", "Technical data of the measuring devices", "Single-pole power outputs (PO)",
"Trip-circuit supervision", "Technical data", "Ordering information"
- new terminal diagrams and terminal connections (High and Sensor)
- new chapters: "Revision history", "Revision history of the REX 521", "Index" and "Appendix D"
1MRS 751108-MUM