Fanuc 366 Alarm __exclusive__ Here

The alarm occurs when the CNC control expects a consistent stream of pulses from the encoder but detects a discrepancy or total loss of signal. Common triggers include:

Incorrect timer constants cause alarm 366. For example: fanuc 366 alarm

Ensure the feedback cable is securely plugged into both the motor's pulse coder and the servo amplifier. Check for frayed wires or oil/coolant contamination in the connectors. The alarm occurs when the CNC control expects