Error description 237-13046

Error message

13046 UM: overload / IGBT (STO) %1 (%4°C)

Cause of error

An excessive temperature of the power electronics or the heat sink was detected in the UM inverter or the UEC compact inverter.
Possible causes:
- Excessive cutting power
- Excessive feed rate
- Excessive continuous load
- Axis moved against an obstacle or limit stop
- Holding brake of axis applied during machining
- Excessive temperature in the electrical cabinet (cooling failed)
- Excessive axis or spindle acceleration
- Fan of the UM inverter or UEC compact inverter defective

Error correction

- Inform your service agency
- Reduce the cutting power
- Reduce the feed rate
- Reduce the continuous load
- Reduce the axis or spindle acceleration (MP_maxAcceleration under CfgFeedLimits)
- Check the holding brake of the axis (function/wiring)
- Check the climate control unit in the electrical cabinet
- Check the fan of the UM inverter or UEC compact inverter and replace it if necessary