Fanuc · Alpha i Series Servo Amplifier
Communications data could not be received from the built-in Pulsecoder. This indicates a failure in the serial communication link from the internal encoder to the servo system.
Click steps to track your progress.
Inspect and reseat the serial cable at both servo and internal Pulsecoder ends.
Measure signal levels on the internal Pulsecoder serial data lines.
Test with a replacement internal Pulsecoder if available.
Verify communication protocol settings in servo parameters (e.g., P1-02).
Check for any physical damage to the internal Pulsecoder's communication port.