Alstom MiCOM P546 - Page 566

P54x/EN PL/La4 Programmable Logic
(PL) 7-32 MiCOM P543, P544, P545 & P546
PL
DDB no. English text Source Description
799 V>1 Start C/CA Overvoltage Overvoltage stage 1, C phase start
800 V>2 Start Overvoltage Overvoltage stage 2, three phase start
801 V>2 Start A/AB Overvoltage Overvoltage stage 2, A phase start
802 V>2 Start B/BC Overvoltage Overvoltage stage 2, B phase start
803 V>2 Start C/CA Overvoltage Overvoltage stage 2, C phase start
804 VN>1 Start Residual Overvoltage Residual overvoltage stage 1 start
805 VN>2 Start Residual Overvoltage Residual overvoltage stage 2 start
806 to 828 Not used
829 VA< Start Poledead
Phase A undervoltage level detector used in
the pole dead logic. Detectors have a fixed
threshold: undervoltage pickup 38.1 V-drop off
43.8 V
830 VB< Start Poledead
Phase B undervoltage level detector used in
the pole dead logic. Detectors have a fixed
threshold: undervoltage pickup 38.1 V-drop off
43.8 V
831 VC< Start Poledead
Phase C undervoltage level detector used in
the pole dead logic. Detectors have a fixed
threshold: undervoltage pickup 38.1 V-drop off
43.8 V
832 VTS Fast Block VT Supervision
VT supervision fast block - blocks elements
which would otherwise maloperate
immediately a fuse failure event occurs
833 VTS Slow Block VT Supervision
VT supervision slow block - blocks elements
which would otherwise maloperate some time
after a fuse failure event occurs
834 Bfail1 Trip 3ph (CB1) CB Fail
tBF1 trip 3Ph - three phase output from circuit
breaker failure logic, stage 1
835 Bfail2 Trip 3ph (CB1) CB Fail
tBF2 trip 3Ph - three phase output from circuit
breaker failure logic, stage 2
836 CB2 Fail1 Trip CB Fail
tBF1 trip 3Ph - three phase output from circuit
breaker failure 2 logic, stage 1
P544 and P546 only
837 CB2 Fail2 Trip CB Fail
tBF2 trip 3Ph - three phase output from circuit
breaker failure 2 logic, stage 2
P544 and P546 only
838 Control Trip (CB1) CB Control
Control trip - operator trip instruction to the
circuit breaker, via menu, or SCADA. (Does
not operate for protection element trips)
839 Control Close (CB1) CB Control
Control close command to the circuit breaker.
Operates for a manual close command (menu,
SCADA), and additionally is driven by the
auto-reclose close command
840 Control Trip CB2 CB Control
Control trip - operator trip instruction to the
circuit breaker 2, via menu, or SCADA. (Does
not operate for protection element trips)
P544 and P546 only
841 Control Close CB2 CB Control
Control close command to the circuit breaker
2. Operates for a manual close command
(menu, SCADA)
P544 and P546 only
842 Close in Prog (CB1) CB Control
Control close in progress - the relay has been
given an instruction to close the circuit
breaker, but the manual close timer delay has
not yet finished timing out
843 Block Main Prot Auto-Reclose Auto-reclose block main protection