Fanuc 0i Error Code 540

Fanuc CNC Minor Overtravel

Model: FANUC Series 0i / 0i Mate | Code: 540

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

Symptoms

4th axis positive overtravel detected, exceeding the positive software or hardware limit.

Possible Causes

  • The 4th axis moved beyond the positive travel limit.
  • Program error or incorrect work offset.

Troubleshooting Steps

  1. Step 1: Manually move the 4th axis back within the travel limit.
    4th axis moved to within limits.
  2. Step 2: Check and correct the program or offset causing the overtravel.
    Root cause identified and corrected.

How to Reset

Move the 4th axis back within limits and reset to clear the alarm.

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

Category: CNC