Error description 238-101B

Error message

101B UVR%2 value of DC-link center voltage too high

Cause of error

The UVR power supply unit has detected that the amount of the DC-link mean voltage is reaching impermissibly high values.

Error correction

- Check the supply voltages of the UVR (line voltage).
- Ensure that operation occurs on a TN network. Operation on TT or IT networks is not permitted. Please refer to the technical manual of your inverter system.
- Inform your service agency.