Possible causes: The Input voltage is too high. Improper floating ground or high input voltage on one of the phases. There are power spikes or surges at the input.
What causes over voltage on a motor?
Overvoltage occurs when the supply voltage rises above the rated voltage of the equipment or motor. ... Overvoltage can be caused by poor regulation of a power source from a utility company, oversized transformers, uneven or varying circuit loading, wiring errors, and electrical insulation or isolation failures.
How do you fix overvoltage?
POSSIBLE FIXES:
- Turn the overvoltage controller is on.
- Check supply voltage for constant or transient high voltage.
- Check the operation of brake chopper and resistor.
- Increase deceleration time.
- Use the “coast to stop” function whenever possible.
- Fit frequency converter with brake chopper and brake resistor.
