GE 169 Instruction Manual page 65

3 SETUP AND USE
Table 3-4: TRIP/ALARM MESSAGES AND FAULT DIAGNOSIS
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1
SELF-TEST ALARM
A/D H/W FAIL
SELF-TEST ALARM
RTD H/W FAIL
SELF-TEST ALARM
RAM FAIL
SELF-TEST ALARM FACTORY
SETPOINTS LOADED
2
PHASE S/C TRIP
3
RAPID TRIP
4
SINGLE PHASE TRIP
5
G/F TRIP
OVERLOAD TRIP
LOCKOUT TIME = XXX MIN.
7
START INHIBITED
LOCKOUT TIME = XXX MIN
8
U/B TRIP
9
STATOR RTD TRIP
RTD # X = XXX C
10
RTD TRIP
RTD # XX = XXX C
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Problem in A/D circuit detected by
internal self-test. Service
required.
Problem in RTD circuit detected
by internal self-test. Service
required.
Problem in RAM detected by
internal self-test. Service
required.
Problem in NOVRAM detected by
internal self-test. Service
required.
Short Circuit Trip Level exceeded
for a time greater than the Short
Circuit Time Delay.
Rapid trip / Mech. Jam Trip Level
exceeded for a time greater than
the Rapid Trip Time Delay.
Unbalance of over 30% present
for a time greater than 4 seconds.
Ground Fault Trip Level exceeded
for a time greater than the
Ground Fault Trip Time Delay.
Motor thermal capacity exceeded.
Motor lock-out time is also shown.
Insufficient thermal capacity
available for motor to start (i.e.
capacity remaining is less than
Learned Start Capacity).
Unbalance Trip Level exceeded
for a time greater than the
Unbalance Trip Time Delay (all
phases > 0.1 XFLC).
Stator RTD Trip Level
temperature exceeded on at least
one stator RTD.
RTD Trip Level temperature
exceeded.
59
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GE Power Management
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Return relay for service.
Return relay for service.
Return relay for service.
Return relay for service.
Check for motor winding shorts.
Check system for jams /
excessive load.
Check continuity of incoming
three phase supply.
Check for motor winding to case
or ground shorts. Check motor for
moisture or conductive particles.
Excessive load with motor
running or locked rotor on start.
Wait for motor to cool.
Wait for motor to cool.
Check incoming supply phases
for unbalance. Check for motor
winding shorts. Increase Trip
Level if required.
Check motor ventilation and
ambient temperature. Allow motor
to cool.
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