Fanuc 0i Error Code 601

Fanuc CNC Critical PMC Alarm

Model: FANUC Series 0i / 0i Mate | Code: 601

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

Symptoms

A PMC RAM parity error was detected.

Possible Causes

  • PMC RAM hardware fault or data corruption.
  • Battery depletion causing PMC data loss.

Troubleshooting Steps

  1. Step 1: Check the PMC RAM and battery status.
    RAM or battery issue identified.
  2. Step 2: Replace the battery and reload the PMC program.
    PMC RAM parity error cleared after reload.

How to Reset

Fix the RAM parity error and reset to clear the alarm.

Related Fanuc Fault Codes

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

Category: CNC