Alstom MiCOM P546 - Page 560

P54x/EN PL/La4 Programmable Logic
(PL) 7-26 MiCOM P543, P544, P545 & P546
PL
DDB no. English text Source Description
539 CB2 Ext Trip A PSL
External trip A phase - allows external
protection to initiate breaker 2 fail
P544 and P546 only
540 CB2 Ext Trip B PSL
External trip B phase - allows external
protection to initiate breaker 2 fail
P544 and P546 only
541 CB2 Ext Trip C PSL
External trip C phase - allows external
protection to initiate breaker 2 fail
P544 and P546 only
542 SG Select x1 PSL
Setting group selector X1 (low bit)-selects SG2
if only DDB 542 signal is active.
SG1 is active if both DDB 542 & DDB 543=0
SG4 is active if both DDB 542 & DDB 543=1
543 SG Select 1x PSL
Setting group selector 1X (high bit)-selects
SG3 if only DDB 543 is active.
SG1 is active if both DDB 542 & DDB 543=0
SG4 is active if both DDB 542 & DDB 543=1
544 Clear Statistics PSL
To reset all statistics values cumulated on the
relay. If mapped, the input for this signal could
come from a command of the remote end
(DDB 1020 - clear stats cmd -) via IM64
545 to 549 Not used
550 Inhibit Predictive OST PSL Block predictive out of step tripping command
551 Predictive OST PSL Predictive out of step trip
552 Inhibit OST PSL Block out of step tripping command
553 OST PSL Out of step trip
554 Start Z5 PSL
Positive sequence impedance is detected in
Z5
555 Start Z6 PSL
Positive sequence impedance is detected in
Z6
556 CNV Active Distance Basic Scheme
Level detector Current No Volts (CNV)
exceeded
557 TOR Trip CNV Distance Basic Scheme
Trip on Reclose trip due to Current No Volts
(CNV) level detectors
558 SOTF Trip CNV Distance Basic Scheme
Switch on to Fault trip due to Current No Volts
(CNV) level detectors
559 Fast OV PHA Distance Basic Scheme
Phase A Fast Overvoltage level detector used
by Current No Volts (CNV)
560 Fast OV PHB Distance Basic Scheme
Phase B Fast Overvoltage level detector used
by Current No Volts (CNV)
561 Fast OV PHC Distance Basic Scheme
Phase C Fast Overvoltage level detector used
by Current No Volts (CNV)
562 I2> Inhibit PSL Inhibit Neg Sequence overcurrent protection
563 I2>1 Tmr Blk PSL
Block Neg Sequence overcurrent stage 1 time
delayed trip
564 I2>2 Tmr Blk PSL
Block Neg Sequence overcurrent stage 2 time
delayed trip
565 I2>3 Tmr Blk PSL
Block Neg Sequence overcurrent stage 3 time
delayed trip
566 I2>4 Tmr Blk PSL
Block Neg Sequence overcurrent stage 4 time
delayed trip
567 I2>1 Start Neg Sequence overcurrent 1st stage Neg Sequence overcurrent start
568 I2>2 Start Neg Sequence overcurrent 2nd stage Neg Sequence overcurrent start