GE P741

Programmable Logic
P74x/EN PL/N
a7
MiCOM P74
1, P742, P743
(PL) 7-
15
PL
Relay
DDB
No.
English Text Type Source Description
P741
216
Ext Trip 50BF z8
PSL Output
Signal
PSL (50BF
Backtrip protection)
External Breaker failure trip order (50BF) of
zone 8 opto input
P741
223
Ext Trip 50BF z1
PSL Output
Signal
PSL (50BF
Backtrip protection)
External Breaker failure trip order (50BF) of
zone 1 opto input
P741
224
INP Lck Lev.1 z8
PSL Output
Signal
PSL
(Commissioning)
Maintenance Mode 1 (87BB monitoring) of zone
8 opto input
P741
231
INP Lck Lev.1 z1
PSL Output
Signal
PSL
(Commissioning)
Maintenance Mode 1 (87BB monitoring) of zone
1 opto input
P741
232
INP Lck Lev.2 z8
PSL Output
Signal
PSL
(Commissioning)
Maintenance Mode 2 (50BF & 87BB blocked) of
zone 8 opto input
P741
239
INP Lck Lev.2 z1
PSL Output
Signal
PSL
(Commissioning)
Maintenance Mode 2 (50BF & 87BB blocked) of
zone 1 opto input
P741
240
Lck Lev.1 Zone 8
PSL Input Signal
Scheme Integrity
Commissioning mode 1: 50BF disabled in zone
8
P741
247
Lck Lev.1 Zone 1
PSL Input Signal
Scheme Integrity
Commissioning mode 1: 50BF disabled in zone
1
P741
248
Lck Lev.2 Zone 8
PSL Input Signal
Scheme Integrity
Commissioning mode 2: 87BB & 50BF disabled
in zone 8
P741
255
Lck Lev.2 Zone 1
PSL Input Signal
Scheme Integrity
Commissioning mode 2: 87BB & 50BF disabled
in zone 1
P741
256
Trip 87BB
PSL Input Signal
87BB Busbar
Protection
Busbar trip order (87BB)
Logical OR of DDB 184 to 191
P741
257
Trip 87BB
Locked
PSL Input Signal
Scheme Integrity
Busbar trip order blocked by commissioning
mode or Circuitry fault
P741
258
Trip Manual zone
PSL Input Signal
Commissioning
Manual Trip Order Logical OR of DDB 192 to
199
P741
259
Trip 50BF
PSL Input Signal
50BF Backtrip
protection
Breaker fail trip order (50BF)
Logical OR of DDB 200 to 207
P741
260
Trip 50BF
Locked
PSL Input Signal
Scheme Integrity
Breaker fail trip order blocked by commissioning
mode or Circuitry fault
P741
261
Ext Trip 50BF
PSL Input Signal
50BF Backtrip
protection
50BF backtrip request by opto input
Logical OR of DDB 216 to 223
P741
262
Fault phase A
PSL Input Signal
87BB Busbar
Protection
Differential fault current in phase A
P741
263
Fault phase B
PSL Input Signal
87BB Busbar
Protection
Differential fault current in phase B
P741
264
Fault phase C
PSL Input Signal
87BB Busbar
Protection
Differential fault current in phase C
P741
265
Earth Fault
PSL Input Signal
87BB Busbar
Protection
Differential sensitive earth fault current
P741
266
Circt Flt Alm Zx
PSL Input Signal
Scheme Integrity
Circuitry fault Alarm on 1 or several zones
Logical OR of DDB 168 to 175
P741
267
Locking Level 1
PSL Input Signal
Scheme Integrity
Commissioning mode 1: 87BB monitoring
Logical OR of DDB 224 to 231
P741
268
Locking Level 2
PSL Input Signal
Scheme Integrity
Commissioning mode 2: 87BB & 50BF disabled
Logical OR of DDB 232 to 239
P741
269
Config. valid
PSL Input Signal
Scheme Integrity
Valid Setting configuration
P741
270
Topology valid
PSL Input Signal
Scheme Integrity
Valid Topology file
P741
271
87BB 3Ph
Blocked
PSL Input Signal
Scheme Integrity
87BB alarm blocked by opto input (or between
the 8 inputs “INP block 3ph” z1 to z8)
P741
272
Fibre Com Worn
PSL Input Signal
Relay Integrity
Warning: fibre communication to be changed
P741
275
Fault Check
Zone
PSL Input Signal
87BB Busbar
Protection
Differential fault detected by the Check Zone
P741
276
Circt Flt ph A
PSL Input Signal
Scheme Integrity
Circuitry fault in phase A
P741
277
Circt Flt ph B
PSL Input Signal
Scheme Integrity
Circuitry fault in phase B
P741
278
Circt Flt ph C
PSL Input Signal
Scheme Integrity
Circuitry fault in phase C
P741
279
Circt Flt Earth
PSL Input Signal
Scheme Integrity
Circuitry fault on the neutral
P741
280
Circt Flt Lck Zx
PSL Input Signal
Scheme Integrity
Circuitry fault blocking Zone x
Logical OR of DDB 160 to 239
P741
281
PU Error Alm Zx
PSL Input Signal
Scheme Integrity
PU error Alarm in Zone x
Logical OR of DDB 152 to 159
P741
282
PU Error Lck Zx
PSL Input Signal
Scheme Integrity
PU error blocking Zone x
Logical OR of DDB 144 to 151
P741
283
SEF Blocked
PSL Input Signal
87BB SEF Busbar
Protection
87BB SEF blocked by opto input
Logical OR of DDB 208 to 215
P741
284
Circt Flt Alm CZ
PSL Input Signal
Scheme Integrity
Circuitry fault on the Check Zone
P741
285
Circt Flt Lck CZ
PSL Input Signal
Scheme Integrity
Circuitry fault blocking the Check Zone
P741
286
PU Error Alm CZ
PSL Input Signal
Scheme Integrity
PU error Alarm in the Check Zone