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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
S5 INPUTS/OUTPUTS
CHAPTER 6: SETPOINTS
Figure 6-69: Relay 2 "CLOSE" logic diagram
898776A1.cdr
Close request
SETPOINT
(BREAKER
)
52a CONT
ACT
Contact input
SETPOINT
(BREAKER
)
52b CONT
ACT
Contact input
AND
OR
52a contact (Breaker Closed
=
1
)
AND
52b contact (Breaker Open =
1
)
Breaker Closed
OR
At least one
contact
programmed
AND
OR
CLOSE
No feedback
change
OR
timed reset
OR
OR
OR
AND
AND
Close Output Seal
-In time
SETPOINT
t
RST
AND
CLOSE
Operate Output Relay
2
(CLOSE)
OR
Local Close (Relay Keypad
)
Remote Close
Relay Status (
Ready
=
1)
timer
200
ms
RUN
SETPOINT
BLOCK CLOSE RL
Y
Disbaled
=
0
(Selected Input
,O
N
=
1)
OR
AND
Breaker Failure
Autoreclose In
-Progress
AND
Autoreclose
OR
timer
2
sec
RUN
LED:
BREAKER CLOSED
AND
Lockout OP