GE MULTILIN 269 MOTOR MANAGEMENT RELAY Series User Manual

3 SETUP AND USE
3-42
Table 3-4 TRIP/ALARM Messages and Fault Diagnosis
Pri. Information Line Explanation Suggestions Manual
Ref.
1
SELF-TEST ALARMSELF-TEST ALARM
A/D H/W FAILA/D H/W FAIL
Problem in A/D circuit detected by
internal self-test. Service required.
- Return relay for service. 3.23
SELF-TEST ALARMSELF-TEST ALARM
RTD H/W FAIL. RTDs OFFRTD H/W FAIL. RTDs OFF
Problem in RTD circuit detected by
internal self-test. Service required.
Number of stator RTDs is set to
zero, and all RTD setpoints are set
to “OFF”.
- Return relay for service.
SELF-TEST ALARMSELF-TEST ALARM
RAM FAILRAM FAIL
Problem in RAM detected by internal
self-test. Service required.
- Return relay for service.
SELF-TEST ALARM FACTORYSELF-TEST ALARM FACTORY
SETPOINTS LOADEDSETPOINTS LOADED
Problem in NOVRAM detected by
internal self-test. Service required.
- Return relay for service.
2
PHASE S/C TRIPPHASE S/C TRIP
Short Circuit Trip Level exceeded for
a time greater than the Short Circuit
Time Delay.
- Check for motor winding shorts. 3.14
3
RAPID TRIPRAPID TRIP
Rapid trip / Mech. Jam Trip Level
exceeded for a time greater than the
Rapid Trip Time Delay.
- Check system for jams / exces-
sive load.
3.13
4
SINGLE PHASE TRIPSINGLE PHASE TRIP
Unbalance of over 30% present for a
time greater than 4 seconds.
- Check continuity of incoming
three phase supply.
3.10
5
GROUND FAULT TRIPGROUND FAULT TRIP
Ground Fault Trip Level exceeded for
a time greater than the Ground Fault
Trip Time Delay.
- Check for motor winding to case
or ground shorts.
- Check motor for moisture or
conductive particles.
3.11
6
OVERLOAD TRIP OVERLOAD TRIP
LOCKOUT TIME = XXX MIN.LOCKOUT TIME = XXX MIN.
Motor thermal capacity exceeded.
Motor lock-out time is also shown.
- Excessive load with motor running
or locked rotor on start.
- Wait for motor to cool.
3.18
7
STARTS/HOURSTARTS/HOUR
LOCKOUT TIME = XXX MIN.LOCKOUT TIME = XXX MIN.
Total number of motor starts over the
past hour greater than Number of
Starts per Hour setpoint.
- Reduce number of starts during
normal motor operation.
3.9
8
TIME BETWEEN STARTSTIME BETWEEN STARTS
LOCKOUT TIME = XXX MINLOCKOUT TIME = XXX MIN
Time elapsed since the last start has
not exceeded Time Between Starts
setpoint.
- Wait until Inhibit expires.
9
UNBALANCE TRIPUNBALANCE TRIP
Unbalance Trip Level exceeded for a
time greater than the Unbalance Trip
Time Delay (all phases > 0.1 × FLC).
- Check incoming supply phases
for unbalance.
- Check for motor winding shorts.
- Increase Trip Level if required.
3.10
10
STATOR RTD TRIPSTATOR RTD TRIP
RTD # X = XXX CRTD # X = XXX C
Stator RTD Trip Level temperature
exceeded on at least one stator RTD.
- Check motor ventilation and am-
bient temperature.
- Allow motor to cool.
3.16
11
RTD TRIP RTD TRIP
RTD # X = XXX CRTD # X = XXX C
RTD Trip Level temperature ex-
ceeded.
3.17
12
ACCEL. TIME TRIPACCEL. TIME TRIP
Motor did not enter a normal running
state (ie. phase current < FLC) within
Acceleration Time setpoint.
- Excessive load or locked rotor on
start.
3.8
13••
PHASE REVERSAL TRIPPHASE REVERSAL TRIP
Phases not connected to motor in
proper sequence.
- Check incoming phase sequence
and VT polarity.
3.19
14••
UNDERVOLTAGE TRIPUNDERVOLTAGE TRIP
Low incoming voltage from substa-
tion.
- Adjust transformer tap changer.
15••
OVERVOLTAGE TRIPOVERVOLTAGE TRIP
High incoming voltage from substa-
tion.
- Adjust transformer tap changer.
16
UNDERCURRENT TRIPUNDERCURRENT TRIP
Phase current less than U/C Trip
setpoint for a time period greater
than the U/C trip time delay.
- Check system for loss of load. 3.12

GE MULTILIN 269 MOTOR MANAGEMENT RELAY Series Specifications

General

Brand	GE
Model	MULTILIN 269 MOTOR MANAGEMENT RELAY Series
Category	Relays
Language	English