GE MI-869 - Page 197

CHAPTER 4: SETPOINTS SYSTEM
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–79
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Setpoint
CONTACT INPUT 52a
Setpoint
CONTACT INPUT 52b
Contact Input X
(52a state)
Contact Input Y
(52b status)
AND AND
XOR
30 ms
S R
LED: ALARM
LATCH
OR
AND
OR
OR
RESET
(command)
ANDAND
Setpoint
CONNECTED Contact Input Z =1, Off = 0
Contact Input Z state
AND
OR
FLEXLOGIC OPERANDS
BKR 1 Disconnected
OR
At least one contact programmed
(to output relays TRIP and CLOSE)
“
Closed
”
(to Switching Device control logic)
“Open”
(to Switching Device control logic)
0 ms
Relay ( Ready = 1)
Breaker Contactor
Setpoints/System/Motor/
Setup/Switching Device Type
AND AND
B C
I
Type selection (TS)
Contactor Disconnect
TS
B C
I
FLEXLOGIC OPERANDS
BKR 1 Connected Contactor Connected
TS
B C
I
TARGET MESSAGE
BKR 1 NOT CONFIG CONTACTOR NOT CONFIG
TS
B C
I
FLEXLOGIC OPERANDS
BKR 1 Closed Contactor Closed
TS
B C
I
FLEXLOGIC OPERANDS
BKR 1 Opened Contactor Opened
TS
B C
I
FLEXLOGIC OPERANDS
BKR 1 Unknown State Contactor Unkwn Stat
TS
B C
I
FLEXLOGIC OPERANDS
Sw Device Open
Contact input X =1, Off=0 Contact input Y =1, Off=0