GE 469

CHAPTER 5: SETTINGS
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 5–87
the breaker or contactor operating time. If an alarm occurs and “Breaker” was chosen as
the starter type, the alarm will be Breaker Failure. If “Contactor” was chosen for starter
type, the alarm will be Welded Contactor. Also, if the starter type chosen is “Breaker”, Trip
Coil Supervision may be enabled. The
SUPERVISION OF TRIP COIL settings is seen only if the
STARTER TYPE is “Breaker”.
• If “52 Closed” is selected, the trip coil supervision circuitry monitors the trip coil circuit
for continuity any time the starter status input indicates that the breaker is closed or
motor current is detected. If that continuity is broken, a Starter Failure alarm will
indicate Trip Coil Supervision.
• If “52 Open/Closed” is selected, the trip coil supervision circuitry monitors the trip coil
circuit for continuity at all times, regardless of breaker state. This requires an alternate
path around the 52a contacts in series with the trip coil when the breaker is open. See
the following figure for modifications to the wiring and proper resistor selection. If that
continuity is broken, a Starter Failure alarm will indicate Trip Coil Supervision.
FIGURE 5–18: Trip Coil Supervision
5.12.3 Demand
PATH: SETTINGS ZV S11 MONITORING ZV CURRENT DEMAND
808727A2.CDR
VALUEOF RESISTOR 'R'
SUPPLY
OHMS
WATTS
48 VDC
125 VDC
250 VDC
10 K
25 K
50 K
2
5
5
TRIP
COIL
TRIP COIL
SUPERVISION
1TRIP
CONTACT
F11
E2
F1
E11
52a
TRIP COIL CLOSED SUPERVISION
"52 Closed"
52a
TRIP
COIL
TRIP COIL
SUPERVISION
1TRIP
CONTACT
F11
E2
F1
E11
52a
TRIP COIL
OPEN/CLOSED
SUPERVISION
"52 Open/Closed"
WITH MULTIPLE
BREAKER AUX
CONTACTS
TRIP COIL
SUPERVISION
1TRIP
CONTACT
TRIP
COIL
F11
E2
F1
E11
52a
TRIP COILOPEN/CLOSED SUPERVISION
"52 Open/Closed"

CURRENT [
CURRENT DEMAND
PERIOD: 15 min.
Range: 5 to 90 min. in steps of 1
MESSAGE
CURRENT DEMAND
ALARM: Off
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN ALARM
RELAYS:
Range: Alarm, Alarm & Auxiliary2,
Alarm & Aux2 & Aux3, Alarm &
Auxiliary3, Auxiliary2, Aux2 &
Aux3, Auxiliary3
MESSAGE
CURRENT DEMAND
LIMIT: 100 A
Range: 10 to 100000 A in steps of 1