Programmable Logic P54x/EN PL/La4
MiCOM P543, P544, P545 & P546
(PL) 7-23
PL
DDB no. English text Source Description
463 Inhibit I>1 PSL Inhibit stage 1 overcurrent protection
464 Inhibit I>2 PSL Inhibit stage 2 overcurrent protection
465 Inhibit I>3 PSL Inhibit stage 3 overcurrent protection
466 Inhibit I>4 PSL Inhibit stage 4 overcurrent protection
467 Inhibit IN>1 PSL Inhibit stage 1 earth fault protection
468 Inhibit IN>2 PSL Inhibit stage 2 earth fault protection
469 Inhibit IN>3 PSL Inhibit stage 3 earth fault protection
470 Inhibit IN>4 PSL Inhibit stage 4 earth fault protection
471 Inhibit V<1 PSL Inhibit stage 1 undervoltage protection
472 Inhibit V<2 PSL Inhibit stage 2 undervoltage protection
473 Inhibit V>1 PSL Inhibit stage 1 overvoltage protection
474 Inhibit V>2 PSL Inhibit stage 2 overvoltage protection
475 Inhibit VN>1 PSL Inhibit stage 1 residual overvoltage protection
476 Inhibit VN>2 PSL Inhibit stage 2 residual overvoltage protection
477 Not used
478 Inhibit Thermal PSL Inhibit thermal overload protection
479 Inhibit CB Status PSL
Inhibit circuit breaker state monitoring (no
alarm for defective/stuck auxiliary contact)
480 Inhibit CB Fail PSL Inhibit circuit breaker fail protection
481 Inhibit OpenLine PSL Broken conductor protection
482 Inhibit VTS PSL
Inhibit VT supervision (including turn OF
MCB’s) via PSL
483 Inhibit CTS PSL
Inhibit CT supervision (both differential and
standard CTS) via PSL
484 InhibitChecksync PSL Inhibit checksync
485 Inhibit TOR PSL Inhibit trip on reclose (TOR)
486 Inhibit SOTF PSL Inhibit switch onto fault (SOTF)
487 Disable Diff CTS PSL To disable differential CTS via PSL
488 Set SOTF PSL
To enable SOTF logic by an external pulse.
When this input is energized by en external
pulse, SOTF becomes enabled during “SOTF
Pulse” time setting
489 AR Reset Z1 EXT Zone 1 Extension Scheme
AR reset Z1X reach back to Z1 reach in Z1
extension scheme
490 Reset Zone 1 Ext PSL
Reset zone Z1X back to Z1 reach using logic
input (i.e. case when external AR and Z1
extension scheme are used)
491 Inhibit LoL PSL Inhibit Loss of Load scheme function
492 Aided 1 COS/LGS PSL
Aided 1 channel out of service signal (COS) or
loss of guard signal (LGS) in distance
unblocking schemes. This signal is normally
driven from an opto input on conventional
channels or from InterMiCOM
493 Aided1 Scheme Rx PSL
Aided channel 1 - external signal received, for
input to distance fixed scheme logic
494 Aided 1 Receive Aided Scheme Logic
Aided channel 1 - internal signal received
generated in the signal receive logic
495 Not used
496 Aid1 Block Send PSL
Prevent sending by customized logic - aided
scheme 1
497 Aid1 Custom Send PSL
Programmable send logic for special
customized scheme (aided channel 1)
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