Alstom MiCOM P54 Series - Page 625

Programmable Logic P54x/EN PL/La4
MiCOM P543, P544, P545 & P546 (PL) 7-91
DDB #886
Live Bus
&
&
&
1
DDB #889
Dead Line
DDB #887
Dead Bus
DDB #888
Live Line
DDB #881
CS1 Enabled
DDB #882
CS2 Enabled
DDB #885
SysSplit Enabled
This logic enables
Check Synchro to
function only for
Live Line / Live
Bus conditions.
DDB #883
Check Sync 1 OK
DDB #884
Check Sync 2 OK
DDB #880
SysChks Inactive
DDB #898
Ctl Check Sync
DDB #899
AR Sys Checks OK
Safety Interlock.
Logic must be
satisfied before any
manual CB closures
can proceed.
DDB #533
Force 3Pole Trip
DDB #858
AR Force 3 pole
PL