Danfoss VLT FCM106, FCP 106 & FCM300 DriveMotor
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Feb 29, 2024 7:23 am
Cause : Over current comes when the inverter peak current limit (approximately 200% of the rated current) is exceeded. The warning lasts about 1.5 s, then the frequency converter trips and issues an alarm.
- This fault may be caused by shock loading or fast acceleration with high inertia loads.
- If extended mechanical brake control is selected, trip can be reset externally.
- Remove power and check if the motor shaft can be turned.
- Check that the motor size matches the frequency converter.
- Check parameters 1-20 to 1-25 for correct motor data.