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I.L. 17562
Page 119
PR 0.3 Effective 8/99
Table 12.2 Trip Conditions
Display
Complete Help
Message
Probable Cause
Solution
IOC
GND FLT
INSTANTANEOUS
OVERCURRENT TRIP
GROUND FAULT TRIP
Electrical fault (short circuit)
in insulation of motor or
connecting circuits.
Note:
If a motor trips on
IOC at the moment of
starting, and an expert has
confirmed no fault, the trip
may be due to magnetic
inrush. Adjust IOC trip level
and start delay to ride
through inrush peak.
DANGER.
Shut down
and lock out motor. Get
expert help in evaluating
condition of motor and
repair needs. Do not try
to restart without expert
evaluation.
After or during repair or
replacement of motor,
check fuses in starter
and replace blown fuses.
JAM
LOAD JAM TRIP
Malfunction or jam of the
driven process equipment.
Lock out motor starter
for safety. Check
process equipment.
UNDER L
UNDER LOAD RUN
TRIP
Breakage or malfunction in
the process driven
equipment or drive shaft
Lock out motor starter
for safety. Check shaft
couplings, shaft keys for
breakage. Look for
blockage of process
material flow to motor-
driven equipment.
MB TEMP
LB TEMP
WD TEMP
AX TEMP
MOTOR BEARING
OVER TEMP TRIP
LOAD BEARING OVER
TEMP TRIP
STATOR WINDING
OVER TEMP TRIP
AUXILIARY OVER
TEMP TRIP
Bearings or bearing
lubrication system has
failed. Also, check RTD
integrity.
Sustained overloading of
motor or cooling air flow
blockage.
If RTD is OK, bearing
will probably need
replacement.
Check airflow path.
Look for cause of
abnormal loading.
Check for abnormal
supply voltage.
LRC/I2T
LOCKED
ROTOR/THERMAL
OVERLOAD TRIP
The thermal-model bucket
has filled to the trip level.
Note: This trip cannot be
reset until the thermal-
model bucket has cooled
•
Determine if the motor
is seeing larger than
expected sustained
loading.
•
Check for unbalance
Содержание 66D2032G01
Страница 18: ...Page 18 I L 17562 PR 0 3 Effective 8 99 Figure 4 1 MP 3000 Pushbuttons...
Страница 19: ...I L 17562 Page 19 PR 0 3 Effective 8 99 Figure 4 2 MP 3000 LED Indicators...
Страница 72: ...Page 72 I L 17562 PR 0 3 Effective 8 99 Figure 6 1 Panel Cutout Dimensions...
Страница 73: ...I L 17562 Page 73 PR 0 3 Effective 8 99 Figure 6 2 Faceplate Dimensions...
Страница 74: ...Page 74 I L 17562 PR 0 3 Effective 8 99 Figure 6 3 MP 3000 Case Depth Dimensions...
Страница 75: ...I L 17562 Page 75 PR 0 3 Effective 8 99 Figure 6 4 Universal RTD Module Mounting Dimensions...
Страница 76: ...Page 76 I L 17562 PR 0 3 Effective 8 99 Figure 6 5 Rear Panel Terminals...
Страница 77: ...I L 17562 Page 77 PR 0 3 Effective 8 99 Figure 6 6 Typical Ct Circuits and Motor Control Wiring...
Страница 78: ...Page 78 I L 17562 PR 0 3 Effective 8 99 Figure 6 7 Typical ac Supply and URTD Wiring...
Страница 79: ...I L 17562 Page 79 PR 0 3 Effective 8 99 Figure 6 8 Alternatives for Discrete Input Wiring...
Страница 80: ...Page 80 I L 17562 PR 0 3 Effective 8 99 Figure 6 9 RTD Wiring to URTD Module...
Страница 88: ...Page 88 I L 17562 PR 0 3 Effective 8 99 Figure 8 1 System Overview Figure 8 2 Torques from Sequence Currents...
Страница 100: ...Page 100 I L 17562 PR 0 3 Effective 8 99 Figure 9 1 Rotor Temperature Tracking...
Страница 101: ...I L 17562 Page 101 PR 0 3 Effective 8 99 Figure 9 2 Motor Protection Curve...
Страница 102: ...Page 102 I L 17562 PR 0 3 Effective 8 99 Figure 9 3 Underload Jam Protection Curve...
Страница 103: ...I L 17562 Page 103 PR 0 3 Effective 8 99 Figure 9 4 Motor Protection Curve Example without RTDs...
Страница 104: ...Page 104 I L 17562 PR 0 3 Effective 8 99 Figure 9 5 Motor Protection Curve Example with RTDs...
Страница 105: ...I L 17562 Page 105 PR 0 3 Effective 8 99 Figure 9 6 Motor Start and Run Cycles...
Страница 109: ...I L 17562 Page 109 PR 0 3 Effective 8 99 P5L8 40 Incomplete Sequence time 1 60s OFF 1 240s...