F07930Fault · DriveUsually repairable
SINAMICS S210 F07930: Drive Brake Control Error
What F07930 means
The S210's built-in brake control found a fault in the circuit that opens and closes the motor's holding brake, and switched off torque for safety.
Symptoms
Trips when the drive tries to open or close the brake, often on enable or stop.
Is it repairable?
Yes: brake coil replacement on the motor or repair of the converter's brake output.
Common causes
- Broken brake wires or damaged OCC cable
- Cable shield not connected properly
- Short or ground fault in the brake coil
- Fault in the converter's brake output
Safe checks
- 1Inspect the OCC cable and its connectors at both ends
- 2With power off, measure the brake coil resistance and check for a short to ground
Drives hold dangerous voltage after power-off. Checks should only be done by qualified personnel, with power isolated and the DC link discharged.
Reviewed by AutomIQ repair technicians. Code and name from the SINAMICS S210 servo drive system Operating Instructions (09/2019).
Related SINAMICS S210 faults
- F07011Motor overtemperature
- F07412Commutation angle incorrect (motor model)
- F07575Motor encoder not ready
- F07801Motor overcurrent
- F07900Motor blocked/speed controller at its limit
- F30001overcurrent