F30011Fault · Power unit
SINAMICS S210 F30011: Power Unit Line Phase Failure In Main Circuit
What F30011 means
The S210 saw too much ripple on its DC link voltage, which usually means one supply phase is missing or weak.
Symptoms
Trips under load, especially on 3 AC units; may come and go with the plant supply.
Is it repairable?
Usually a supply issue; repairable when the converter's input stage or DC link is damaged.
Common causes
- Blown fuse or loose connection on one phase
- Unbalanced supply
- A motor phase lost
- Too much power drawn on a single-phase supply
Safe checks
- 1Check every supply fuse and terminal
- 2Measure all three phases under load
- 3Check the motor cable connections
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
- F07930Brake control error