Cause : Converter overcurrent comes when the current flows in the regeneration converter module exceeds the specified value, protective circuit activates and stops the inverter output.

1. Check that sudden acceleration/deceleration is not performed.
2. Check for sudden load change.
3. Check that wiring is correct.
4. Check that instantaneous power failure did not occur.
5. Check that the thyristor load does not exist in the same power supply system.