F7410 fault in Siemens V70 Drive indicates the Current controller output is limited. This means the drive is trying to output voltage to push current, but the current remains zero, usually because the motor is disconnected or a contactor is open.
Cause: The condition “I_act = 0 and Uq_set_1 longer than 16 ms at its limit” is present and can be caused by the following:
- Motor not connected or motor contactor open.
- No DC link voltage present.
- Motor Module defective.
Remedy:
- Connect the motor or check the motor contactor.
- Check the DC link voltage.
- Check the Motor Module.
