Applicable Systems
Series 0i
Series 16/18/21
Alpha
Beta
Symptoms
4th axis APC communication error detected.
Possible Causes
- Communication failure between the APC and servo control unit.
- Damaged cable or connector.
Troubleshooting Steps
- Step 1: Check APC cable connections and connectors.
Cable connections verified. - Step 2: Replace the cable if damaged.
Communication restored after cable replacement.
How to Reset
Fix the communication issue and reset to clear the alarm.
Source: Fanuc 0i/0iMate Alarm Code List, FANUC Corporation
Category: CNC