GE Power Management 269Plus Motor Management Relay 3-
45
3 SETUP AND USE TRIP/ALARM MODE
3
12 Stator RTD Trip Level temperature
exceeded on at least 1 stator RTD.
Check motor ventilation
and ambient temperature.
Allow motor to cool.
3.18
13 RTD Trip Level temperature
exceeded.
3.19
14 Motor did not enter a normal running
state (i.e. phase current < FLC)
within Acceleration Time setpoint.
Excessive load or locked
rotor on start.
3.9
15• Phases not connected to motor in
proper sequence.
Check incoming phase
sequence and VT polarity.
3.21
16 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.
3.14
17 Non-closure of speed switch
contacts within Speed Switch Time
Delay
Locked motor on start 2.16
18 Closure of differential relay contacts. Differential relay trip 2.15
19 Spare Input contact closure Check device connected
to Spare Input terminals
20• Low incoming voltage from
substation.
Adjust transformer tap
changer.
21• High incoming voltage from
substation.
Adjust transformer tap
changer.
22• Fault in excitation control system. Check excitation.
23 Phase current greater than
Immediate O/L Level setpoint.
Reduce motor load. 3.17
24 Ground Fault Alarm Level exceeded
for a time greater than the Ground
Fault Time Delay.
Check motor windings for
shorts, moisture, or
conductive particles.
3.12
25 Unbalance Alarm Level exceeded
for a time greater than the
Unbalance Time Delay.
Check incoming phases
for unbalance.
3.11
26 Phase current less than
Undercurrent Alarm Level for a time
greater than the Undercurrent Alarm
Time Delay.
Check system for loss of
load.
3.14
Table 3–4: TRIP/ALARM MESSAGES AND FAULT DIAGNOSIS
PRI INFORMATION LINE EXPLANATION SUGGESTIONS MANUAL
SECTION
•
••
• Available only if a GE Power Management meter (MPM) is installed and on-line (see Setpoints page 7, line 2)
STATOR RTD TRIP
RTD # X = XXX C
RTD TRIP
RTD # X = XXX C
ACCEL. TIME TRIP
PHASE REVERSAL TRIP
UNDERCURRENT TRIP
SPEED SWITCH TRIP
DIFFERENTIAL INPUT TRIP
SPARE INPUT TRIP
UNDERVOLTAGE TRIP
OVERVOLTAGE TRIP
POWER FACTOR TRIP
OVERLOAD WARNING
TIME TO TRIP = XXXXX
GROUND FAULT ALARM
G/F = XX PERCENT
UNBALANCE ALARM
U/B = XX PERCENT
UNDERCURRENT ALARM
I(3 ph avg) = XXXX A RMS
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