Alstom MiCOM P54 Series - Page 558

P54x/EN PL/La4 Programmable Logic
(PL) 7-24 MiCOM P543, P544, P545 & P546
PL
DDB no. English text Source Description
498 Aided 1 Send Aided Scheme Logic
Aided channel 1 send - internal send signal
generated in signal send logic
499 Aid1 Custom T In PSL
When using a custom programmable aided
scheme 1, the user is able to include a current
reversal guard timer. Energizing this DDB will
additionally start this timer, from PSL
500 Aid1 CustomT Out Aided Scheme Logic
When using customized aided scheme 1, this
signal is used to indicate any additional
condition that should be treated as permission
for an aided trip (for example a permissive
signal received could be connected, or a
blocking signal could be inverted and then
connected)
501 Aid1 Trip Enable Aided Scheme Logic
Aided scheme 1 trip enable - this is a
permissive signal used to accelerate zone 2,
or a blocking signal which has been inverted.
It is a signal output, part-way through the
internal fixed logic of aided schemes
502 Aid1 Custom Trip PSL Aid1 custom trip enable
503 Aid 1 Dist Trip Aided Scheme Logic
Aided scheme 1 distance trip command
(output from aided tripping logic)
504 Aid 1 Delta Trip Aided Scheme Logic
Aided Scheme 1 Delta Directional Trip
command (output from Aided tripping logic)
505 Aid 1 DEF Trip Aided Scheme Logic
Aided scheme 1 DEF trip command (output
from aided tripping logic)
506 Aided 2 COS/LGS PSL
Aided 2 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
507 Aided2 Scheme Rx PSL
Aided channel 2 - external signal received, for
input to distance fixed scheme logic
508 Aided 2 Receive Aided Scheme Logic
Aided channel 2 - internal signal received
generated in the signal receive logic
509 to 511 Not used
512 Aid2 Block Send PSL
Prevent sending by customized logic - aided
scheme 2
513 Aid2 Custom Send PSL
Programmable send logic for special
customized scheme (aided channel 2)
514 Aided 2 Send Aided Scheme Logic
Aided channel 2 send - internal send signal
generated in signal send logic
515 Aid2 Custom T In PSL
When using a custom programmable aided
scheme 2, the user is able to include a current
reversal guard timer. Energizing this DDB will
additionally start this timer, from PSL
516 Aid2 CustomT Out Aided Scheme Logic
When using customized aided scheme 2, this
signal is used to indicate any additional
condition that should be treated as permission
for an aided trip (for example a permissive
signal received could be connected, or a
blocking signal could be inverted and then
connected)
517 Aid2 Trip Enable Aided Scheme Logic
Aided scheme 2 trip enable - this is a
permissive signal used to accelerate zone 2,
or a blocking signal which has been inverted.
It is a signal output, part-way through the
internal fixed logic of aided schemes
518 Aid2 Custom Trip PSL Aid2 custom trip enable
519 Aid 2 Dist Trip Aided Scheme Logic
Aided scheme 2 distance trip command
(output from aided tripping logic)
520 Aid 2 Delta Trip Aided Scheme Logic
Aided Scheme 2 Delta Directional Trip
command (output from Aided tripping logic)