Sensor (Serial) Communication Disconnected

What does d2 mean?

This alarm indicates that communication between the serial sensor and the Spindle Amplifier is disconnected. This can be caused by incorrect parameter settings, an unsupported Spindle Amplifier, cable issues, or a defective Spindle Amplifier.

• Parameter setting error for the sensor.
• Unsupported Spindle Amplifier.
• Broken or incorrectly connected sensor communication cable.
• Defective Spindle Amplifier.

1. 1

   Check the sensor setting parameters by referring to the 'START-UP' section in the FANUC AC SPINDLE MOTOR α i series Parameter Manual (B-65280EN).

2. 2

   Verify Spindle Amplifier compatibility by checking 'PARAMETERS RELATED TO DETECTORS' in the FANUC SERVO AMPLIFIER α i series Descriptions (B-65282EN).

3. 3

   Replace the sensor communication cable or check its connection for integrity.

4. 4

   Replace the Spindle Amplifier or Spindle Amplifier control printed-circuit board.