Operational Difficulties - GE Custom 8000 Instructions Manual

DLCGEEP-124-I/000, Approved, 2016-11-11, CampinasDM

Operational Difficulties

WARNING:
ROTATING PARTS CAN CAUSE SERIOUS INJURY.
THE USE OF ELECTRIC MACHINERY, LIKE ALL
OTHER UTILIZATION OF CONCENTRATED POWER
AND ROTATING PARTS, CAN BE HAZARDOUS.
MAKE CERTAIN THAT THE VOLTAGE IS REMOVED
FROM ALL CIRCUITS AND THAT NO MECHANICAL
PARTS ARE ROTATING.
OPERATION AND MAINTENANCE OF ELECTRIC
Trouble
Motor will not start
Noise or vibration
GE Industrial Control Systems GEEP-124-I
HIGH VOLTAGE AND
INSTALLATION,
TROUBLE - SHOOTING CHART
Possible Cause
Power not connected
Low Voltage
Wrong control connections
Driven machine locked
Open circuit in stator or rotor
winding
Winding grounded
Excessive load torque
Overload control trip
Motor running single phase
Supply bus unbalanced
GEEP-124-I Horizontal Induction Motor
MACHINERY SHOULD
QUALIFIED PERSONNEL. FAMILIARIZATION WITH
NEMA PUBLICATION MG-2, SAFETY STANDARDS
FOR CONSTRUCTION
SELECTION, INSTALLATION
ELECTRIC MOTORS AND GENERATORS, THE
NATIONAL ELECTRICAL CODE AND SOUND
LOCAL PRACTICES IS RECOMMENDED.
Connect power to control, and control
to motor. Check contacts.
Check motor nameplate value with bus
voltage.
Check connections with control wiring
diagram.
Disconnect motor from load. If motor
starts
machine.
Measure/compare winding resistance
of each phase.
Test for grounded winding.
Check motor capability.
Wait for motor to cool. Try starting
again.
Stop motor. Then try to start. It will
not start on single phase. Check for
"Open" in one of the lines or circuits.
Check balance by measuring current
and voltage in each phase. Correct the
power supply to obtain balanced
voltages.
Copyright 1997,1998 The General Electric Company, USA
WPI, Antifriction Bearing
BE PERFORMED
AND GUIDE
AND USE
Action
satisfactorily, check driven
BY
FOR
OF
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