Fanuc 0i Error Code 322

Fanuc CNC Major APC Alarm

Model: FANUC Series 0i / 0i Mate | Code: 322

Applicable Systems
Series 0i Series 16/18/21 Alpha Beta

Symptoms

Y axis APC communication timeout occurred.

Possible Causes

  • APC response timed out due to hardware malfunction.
  • Excessive noise in the communication line.

Troubleshooting Steps

  1. Step 1: Check the APC unit and cable for damage.
    Hardware inspected.
  2. Step 2: Reduce noise sources near the communication line.
    Timeout resolved after noise reduction.

How to Reset

Resolve the timeout cause and reset to clear the alarm.

Source: Fanuc 0i/0iMate Alarm Code List, FANUC Corporation

Category: CNC