P54x/EN PL/La4 Programmable Logic
(PL) 7-48
MiCOM P543, P544, P545 & P546
PL
DDB no. English text Source Description
1476 CB2 CS1 FL<FB
Frequency difference between Line V and
Bus2 V is greater than setting "SlipFr2-1" (line
freq < Bus freq)
P544 and P546 only
1477 CB2 CS2 FL<FB
Frequency difference between Line V and
Bus2 V is greater than setting "SlipFr2-2" (line
freq < Bus freq)
P544 and P546 only
1478 CB2 CS1 AngHigh+
Line/Bus2 phase angle in range: +Angle 2-1 to
+180deg (anticlockwise from Vbus)
P544 and P546 only
1479 CB2 CS1 AngHigh-
Line/Bus2 phase angle in range: -Angle 2-1 to
-180deg (clockwise from Vbus)
P544 and P546 only
1480 CB2 CS2 AngHigh+
Line/Bus2 phase angle in range: +Angle 2-2 to
+180deg (anticlockwise from Vbus)
P544 and P546 only
1481 CB2 CS2 AngHigh-
Line/Bus2 phase angle in range: -Angle 2-2 to
-180deg (clockwise from Vbus)
P544 and P546 only
1482 CB2 CS AngRotACW
Line freq > (Bus2 freq + 0.001Hz) (Line
voltage vector rotating anticlockwise relative to
VBus2)
P544 and P546 only
1483 CB2 CS AngRotCW
Bus2 freq > (Line freq + 0.001Hz) (Line
voltage vector rotating clockwise relative to
VBus2)
P544 and P546 only
1484 SChksInactiveCB2
Output from CB2 system check logic: indicates
system checks for CB2 are disabled (setting
"System Checks CB2" = Disabled or global
setting "System Checks" = Disabled)
P544 and P546 only
1485 AR Force CB2 3P Autoreclose
This DDB is set when the autoreclose logic
has determined that single pole
tripping/autoreclosing is not permitted for CB2.
It can be applied in PSL when required to
force trip conversion logic for internal and/or
external protection to three phase trip mode
for CB2.
P544 and P546 only
1486 Not used
1487 Not used
1488 En CB1 Follower
Indicates conditions are satisfied to enable
CB1 follower sequence
P544 and P546 only
1489 to 1492 Not used
1493 CB1 CS2 FL>FB
Frequency difference between Line V and
Bus1 V is greater than setting "SlipFr1-2" (line
freq > Bus freq)
P544 and P546 only
1494 CB1 CS2 FL<FB
Frequency difference between Line V and
Bus1 V is greater than setting "SlipFr1-2" (line
freq < Bus freq)
P544 and P546 only
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