Nidec ID300 - Troubleshooting: Common Issues; Troubleshooting: Motor Noise; Troubleshooting: Motor Heat

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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o󰀨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o󰀨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ns.
• 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