Fanuc 0i Error Code 602

Fanuc CNC Major PMC Alarm

Model: FANUC Series 0i / 0i Mate | Code: 602

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

Symptoms

A PMC serial transmission error was detected.

Possible Causes

  • Serial communication failure between PMC and I/O modules.
  • Cable fault or communication timing error.

Troubleshooting Steps

  1. Step 1: Check the serial communication cable and connections.
    Cable or connection issue identified.
  2. Step 2: Verify I/O module addresses and communication settings.
    Serial communication restored.

How to Reset

Fix the serial communication and reset to clear the alarm.

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

Category: CNC