Appendix
396
7SS52 V4 Manual
C53000-G1176-C182-3
Table A-24 Marshalling of the LEDs
9 CB fault M 10456 Circuit breaker fault
Bay DC fail M 10426 Failure of isolator aux. voltage
Isol flt run M 10427 Isolator fault: run time
Isol flt pos M 10428 Isolator position faulty
Isol flt alarm 10425 Isolator fault alarm
10 TRIP blocked 10442 TRIP commands blocked
11 BF blocked 10432 Breaker Failure Protection blocked
12 Maintenance M 10454 Maintenance of bay
out of serv. M 10453 Bay out of service
13 IsoProhib/fault 10470 Isolator oper. prohibited
IsoProhib G 10471 Isolator oper. prohibited
14 TripRep BU M 10450 Trip repeat BU
15 Transf. Trip M 10433 Breaker Failure/Transfer Trip
16 Device Trip 10445 Device Trip
LED Annunciation FNo Comments
1 Err PROT BLOCK 10476 Error with protection blocking
2 Err PROT ACTIVE 10475 Error without protection blocking
3 BU fail M 10455 Bay unit failure
Meas sup BU M 10423 Measured value superv. BU
4 15V-superv CU 10420 15V supply supervision central unit
24V-superv CU) 10421 24V supply supervision central unit
Batt. superv CU 10422 Battery supervision central unit
Supply sup BU M 10424 Supply voltage superv. BU
5 Flt autotest M 10429 Failure in auto testing
6 not assigned − not assigned
7 BF ImpBI errorM 10437 Timing error BF impulse input
BF rel error M 10435 Timing error BF release
BF BI error M 10434 Timing error BF input
8 Id-sup CZ M 10410 Diff-current superv. CZ
Id-sup BZ M 10415 Diff-current superv. BZ
Relay Annunciation FNo. Comments
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