5–86 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
5.12 S11 Monitoring
5.12.1 Trip Counter
PATH: SETTINGS ZV S11 MONITORING Z TRIP COUNTER
When the Trip Counter Limit is reached, an alarm will occur. The trip counter must be
cleared or the alarm level raised and the reset key must be pressed (if the alarm was
latched) to reset the alarm.
For example, it might be useful to set a Trip Counter alarm at 100 so that if 100 trips occur,
the resulting alarm prompts the operator or supervisor to investigate the type of trips that
occurred. A breakdown of trips by type may be found on
A3 MAINTENANCE\TRIP COUNTERS.
If a trend is detected, it would warrant further investigation.
5.12.2 Starter Failure
PATH: SETTINGS ZV S11 MONITORING ELEMENTS ZV STARTER FAILURE
If the STARTER FAILURE ALARM is set to “Latched” or “Unlatched”, then the Starter Status
input and motor current are monitored 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
TRIP [
TRIP COUNTER
ALARM: Off
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN ALARM
RELAYS:
Range: Alarm, Alarm & Auxiliary2,
Alarm & Aux2 & Aux3, Alarm &
Auxiliary3, Auxiliary2, Aux2 &
Aux3, Auxiliary3
MESSAGE
TRIP COUNTER
ALARM
Range: 1 to 50000 Trips in steps of 1
MESSAGE
TRIP COUNTER
ALARM
Range: On, Off
STARTER [
STARTER FAILURE
ALARM: Off
Range: Off, Latched, Unlatched
MESSAGE
STARTER TYPE:
Breaker
Range: Breaker, Contactor
MESSAGE
ASSIGN ALARM
RELAYS:
Range: Alarm, Alarm & Auxiliary2,
Alarm & Aux2 & Aux3,
Alarm & Auxiliary3, Auxiliary2,
Aux2 & Aux3, Auxiliary3
MESSAGE
STARTER FAILURE
DELAY: 100 ms
Range: 10 to 1000 ms in steps of 10
MESSAGE
SUPERVISION OF
TRIP
Range: Disabled, 52 Closed, 52 Open/
Closed
MESSAGE
STARTER FAILURE
ALARM EVENTS: Off
Range: On, Off
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