Fanuc · Alpha i Series Servo Amplifier
A checksum alarm occurred on the built-in Pulsecoder. This indicates an internal data integrity issue within the Pulsecoder.
Click steps to track your progress.
Power cycle the Pulsecoder and the CNC.
Measure Pulsecoder output signals for noise or distortion.
Inspect Pulsecoder connector for corrosion or damage.
If possible, replace the Pulsecoder unit.