Error description 237-13004

Error message

13004 UM: HW overcurrent shutdown %1 (maximum current: %4A, phase %5)

Cause of error

The fast hardware overcurrent monitoring in the UM inverter or UEC compact inverter has responded
- Possible causes:
- Current controller parameterized incorrectly
- Short-circuit
- Defective power module
- Excessive current ripple, for example due to an unfavorable combination of motor, inverter, and PWM frequency

Error correction

- Check the current controller adjustment
- Check the motor connection for a short circuit
- Check the motor for an interwinding fault
- If necessary, use a stronger inverter
- Increase the PWM frequency
- If necessary, replace defective power module
- Inform your service agency