Fanuc · Alpha i series AC Servo Motor
A communication error (DTER) was detected for the serial pulse coder. This can be caused by physical damage to the signal cable, a defective pulse coder or servo amplifier module, or external electrical noise interference.
Click steps to track your progress.
Check the continuity and integrity of the serial pulse coder signal cable.
If the cable is verified as normal, replace the pulse coder or the servo amplifier module.
Implement noise reduction measures as described in the 'Descriptions' chapter on noise.