Fanuc · Alpha i Series Servo Amplifier
This alarm is issued when the absolute position data sent from the built-in α pulse coder cannot be synchronized with the phase data.
Click steps to track your progress.
Turn off the NC (Numerical Control) power.
Remove the pulse coder cable.
Attach the pulse coder cable again securely.
If this alarm is issued again after re-attaching the cable, replace the pulse coder.