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ID300/302 Integrated Motor Drive |
Troubleshooting Guide
9 Troubleshooting Guide
Incident
Possible Cause
Remedy
Abnormal
noise
Originating in motor or machine being
driven?
Uncouple the motor from the equipment being driven
and test the motor on its own.
Noisy motor
The cause is mechanical
, if the noise
persists after switching off the power
supply with the drive set to “freewheel”
mode (open enable or STO terminal(s)).
Vibrations
Check that the key conforms to the type of balancing.
(See section 3.5, page 20.)
Damaged bearings
Change the bearings.
Mechanical friction: ventilation, coupling
Check the installation.
The cause is electrical
, if the noise stops
after switching off the power supply.
Check the power supply at the motor terminals. Check
the drive settings.
Normal voltage and 3 phases balanced
Check the connection of the AC terminal block and the
tightening of the terminals.
Abnormal voltage
Check the power supply line.
Phase imbalance
Check the winding resistance.
Other possible causes:
•
Incorrect settings
•
Drive malfunction
Refer to the ID300/302 http://www.leroy-somer.com/
documentation_pdf/5512_en.pdf
Motor heats
abnormally
Faulty ventilation
•
Check the environment.
•
Clean the fan cover and the cooling fins.
•
Check that the fan is correctly mounted.
Unsuitable switching frequency
Comply with the minimum switching frequency
indicated on the motor nameplate.
Faulty supply voltage
Check the voltage.
Overload
Check the current consumption in relation to that
indicated on the motor nameplate.
Partial short circuit
Check the electrical continuity of the windings and/or
the installation.
Phase imbalance
Check the winding resistance.
Other possible causes:
•
Incorrect settings
•
Drive malfunction
Refer to the ID300/302 http://www.leroy-somer.com/
documentation_pdf/5512_en.pdf
