GE 269Plus - Trip;Alarm Mode; Table 3-4: TRIP;ALARM MESSAGES and FAULT DIAGNOSIS

3- 44 269Plus Motor Management Relay GE Power Management
TRIP/ALARM MODE 3 SETUP AND USE
3
Table 3–4: TRIP/ALARM MESSAGES AND FAULT DIAGNOSIS
PRI INFORMATION LINE EXPLANATION SUGGESTIONS MANUAL
SECTION
1 Problem in A/D circuit detected by
internal self-test. Service required.
Return relay for service. 3.25
Problem in RTD circuit detected by
internal self-test. Service required.
Number of stator RTDs is set to 0,
and all RTD setpoints are set to OFF.
Return relay for service.
Problem in RAM detected by internal
self-test. Service required.
Return relay for service.
ProbleminNOVRAMdetectedby
internal self-test. Service required.
Return relay for service.
2 Short Circuit Trip Level exceeded for
a time greater than the Short Circuit
Time Delay.
Check for motor winding
shorts.
3.16
3 Rapid trip / Mech. Jam Trip Level
exceeded for a time greater than the
RapidTripTimeDelay.
Check system for jams /
excessive load.
3.15
4 Unbalance of over 30% present for a
time greater than 4 seconds.
Check continuity of
incoming three phase
supply.
3.11
5 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.
3.12
6 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.
3.20
7 Insufficient thermal capacity
available for motor to start (i.e. less
than Learned Start Capacity)
Wait for motor to cool. 3.22
8 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.
3.10, 3.4a
9 Time elapsed since the last start has
not exceeded Time Between Starts
setpoint.
Wait until Inhibit expires. 3.4a
10 Time elapsed since motor has
stopped has not exceeded the
Backspin Timer setpoint
Wait until inhibit expires.
11 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.
3.11
•
••
• Available only if a GE Power Management meter (MPM) is installed and on-line (see Setpoints page 7, line 2)
SELF TEST ALARM
A/D H/W FAIL
SELF TEST ALARM
RTD H/W FAIL. RTDs OFF
SELF TEST ALARM
RAM FAIL
SELF TEST ALARM FACTORY
SETPOINTS LOADED
PHASE S/C TRIP
RAPID TRIP
SINGLE PHASE TRIP
GROUND FAULT TRIP
OVERLOAD TRIP
LOCKOUT TIME = XXX MIN.
START INHIBIT
LOCKOUT TIME = XXX MIN.
STARTS/HOUR
LOCKOUT TIME = XXX MIN.
TIME BETWEEN STARTS
LOCKOUT TIME = XXX MIN
BACKSPIN TIMER
LOCKOUT TIME = XXX MIN
UNBALANCE TRIP