Fanuc 0i Error Code 335

Fanuc CNC Major APC Alarm

Model: FANUC Series 0i / 0i Mate | Code: 335

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

Symptoms

Z axis APC pulse loss detected.

Possible Causes

  • Pulse loss in the absolute pulse coder.
  • Encoder hardware degradation or cable damage.

Troubleshooting Steps

  1. Step 1: Check encoder cable and connections.
    Cable and connections verified.
  2. Step 2: Replace the encoder if pulse loss continues.
    Pulse loss resolved after encoder replacement.

How to Reset

Fix the pulse loss issue and reset to clear the alarm.

Related Fanuc Fault Codes

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

Category: CNC