Error description 237-1303D

Error message

1303D UM: short circuit of brakes was detected %1 (Info: %4)

Cause of error

- The inverter detected a short circuit in the motor brake.
- Info provides information about the exact cause of the error:
Info = 1: Short circuit between BR+ and BR-
Info = 2: Short circuit between BR+ and housing

Error correction

Warning:
Hanging axes cannot be supported under certain circumstances. The axis can drop.
Do not enter the area of danger under the axis!
- Move the axis to a safe position before power-off
- Inform your service agency
- Check controls for motor brakes
- Exchange motor