Fanuc · Alpha i Series AC Servo Motor and Spindle
This alarm indicates that the absolute position data for the Pulsecoder may be lost or displaced, often occurring if the sensor head is moved after the initial power-on and conduction state, or if the battery is depleted/disconnected.
Click steps to track your progress.
Detach cable K1 from connector OUT1 of the sensor circuit.
Connect connector IN2 to connector OUT1 on the sensor circuit.
Maintain this connection for 10 seconds.
Connect all other sensor cables correctly.
Reconnect cable K1 to OUT1.
Perform reference position return operation after ensuring the alarm is issued.