F1910 fault in Siemens V70 Drive indicates a Drive Bus Setpoint timeout. This means the reception of setpoints from the Drive Bus interface has been interrupted due to a bus failure or controller stop.
Cause: The reception of setpoints from the Drive Bus interface has been interrupted.
- Bus connection interrupted.
- Controller switched off.
- Controller set into the STOP state.
Remedy: Restore the bus connection and set the controller to RUN.
