P54x/EN PL/La4 Programmable Logic
(PL) 7-50
MiCOM P543, P544, P545 & P546
PL
DDB no. English text Source Description
1517 Ext Rst CB1 AROK PSL
DDB mapped in PSL from opto or comms
input. This input DDB is used when required
to reset any CB1 "Successful Autoreclose"
signal.
P544 and P546 only
1518 Ext Rst CB1Shots PSL
DDB mapped in PSL from opto or comms
input. This input DDB is used when required
to reset the CB1 cumulative "Shots" counters.
P544 and P546 only
1519 to 1520 Not used
1521 MCB/VTS CS1 PSL
DDB mapped in PSL from opto input (Bus1 VT
secondary MCB tripped or VT fail detected by
external VTS scheme), or signal from host
relay VTS scheme
P544 and P546 only
1522 Inhibit LL PSL
DDB mapped in PSL from opto input (external
signal to inhibit Live Line function)
P544 and P546 only
1523 Inhibit DL PSL
DDB mapped in PSL from opto input (external
signal to inhibit Dead Line function)
P544 and P546 only
1524 Inhibit LB1 PSL
DDB mapped in PSL from opto input (external
signal to inhibit Live Bus 1 function)
P544 and P546 only
1525 Inhibit DB1 PSL
DDB mapped in PSL from opto input (external
signal to inhibit Dead Bus 1 function)
P544 and P546 only
1526 CB1 In Service
CB1 In Service (can be initiated for
autoreclose)
P544 and P546 only
1527 Not used
1528 CB1 NoAR Autoreclose
CB1 not available for autoreclose
P544 and P546 only
1529 Not used
1530 Leader CB1 Autoreclose
CB1 set as leader
P544 and P546 only
1531 to 1534 Not used
1535 CB1 Trip AR MemA
A Ph trip & AR initiation memory
P544 and P546 only
1536 CB1 Trip AR MemB
B Ph trip & AR initiation memory
P544 and P546 only
1537 CB1 Trip AR MemC
C Ph trip & AR initiation memory
P544 and P546 only
1538 to 1540 Not used
1541 AR Start Autoreclose
Any AR initiation signal present
P544 and P546 only
1542 ARIP Autoreclose
Any AR cycle in progress
P544 and P546 only
1543 CB1 AR Init Autoreclose
CB1 AR cycle initiation
P544 and P546 only
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