Fanuc 0i Error Code 409

Fanuc CNC Major Servo Alarm

Model: FANUC Series 0i / 0i Mate | Code: 409

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

Symptoms

A torque alarm was detected on the servo.

Possible Causes

  • Excessive torque demand exceeding the motor rating.
  • Mechanical jam or overload condition.

Troubleshooting Steps

  1. Step 1: Check for mechanical binding or jam in the axis.
    Jam or binding identified.
  2. Step 2: Reduce the load or fix the mechanical issue.
    Torque demand returns to normal range.

How to Reset

Fix the torque overload and reset to clear the alarm.

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

Category: CNC