Starter Failure - GE 469 Instruction Manual

4 SETPOINTS
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PATH: SETPOINTS S11 MONITORING ELEMENTS
n STARTER FAILURE
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If the
STARTER FAILURE ALARM
tored when the 469 initiates a trip. If the starter status contacts do not change state or motor current does not drop to zero
after the programmed time delay, an alarm occurs. The time delay should be slightly longer than 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 "Con-
tactor" 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.
• 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 Fail-
ure 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.
E11
TRIP COIL
SUPERVISION
F11
E2
R1 TRIP
CONTACT
F1
TRIP COIL CLOSED SUPERVISION
"52 Closed"
808727A1.CDR
GE Multilin
Courtesy of NationalSwitchgear.com
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STARTER FAILURE

ð
STARTER FAILURE
ENTER
ESCAPE ALARM: Off
STARTER TYPE:
ESCAPE
Breaker
MESSAGE
ASSIGN ALARM RELAYS:
ESCAPE
Alarm
MESSAGE
STARTER FAILURE
ESCAPE
DELAY: 100 ms
MESSAGE
SUPERVISION OF TRIP
ESCAPE
COIL: Disabled
MESSAGE
STARTER FAILURE
ESCAPE
ALARM EVENTS: Off
MESSAGE
is set to "Latched" or "Unlatched", then the Starter Status input and motor current are moni-
TRIP COIL
SUPERVISION
R1 TRIP
CONTACT
52a
TRIP COIL
OPEN/CLOSED
SUPERVISION
TRIP
"52 Open/Closed"
COIL
WITH MULTIPLE
BREAKER AUX
CONTACTS
Figure 4–16: TRIP COIL SUPERVISION
469 Motor Management Relay
Range: Off, Latched, Unlatched
Range: Breaker, Contactor
Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3,
Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3,
Auxiliary3
Range: 10 to 1000 ms in steps of 10
Range: Disabled, 52 Closed, 52 Open/Closed
Seen only if
Range: On, Off
E11
TRIP COIL
SUPERVISION
F11
E2
R1 TRIP
CONTACT
F1
52a
TRIP
COIL
52a TRIP COIL OPEN/CLOSED SUPERVISION
VALUE OF RESISTOR 'R'
4.12 S11 MONITORING
4.12.2 STARTER FAILURE
STARTER TYPE is "Breaker"
E11
F11
E2
F1
52a
TRIP
COIL
"52 Open/Closed"
SUPPLY
OHMS WATTS
48 VDC
10 K 2
125 VDC
25 K 5
250 VDC
50 K 5
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