Fanuc 0i Error Code 930

Fanuc CNC Critical System Alarm

Model: FANUC Series 0i / 0i Mate | Code: 930

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

Symptoms

A CPU error was detected on the main board.

Possible Causes

  • CPU hardware fault or illegal instruction execution.
  • Firmware corruption or memory access violation.

Troubleshooting Steps

  1. Step 1: Check the CPU status and firmware integrity.
    CPU fault identified.
  2. Step 2: Replace the main board or reload firmware.
    CPU error cleared after repair.

How to Reset

Fix the CPU error and reset to clear the alarm.

Related Fanuc Fault Codes

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

Category: CNC