Applicable Systems
Series 0i
Series 16/18/21
Alpha
Beta
Symptoms
G39 was specified while tool compensation is not active.
Possible Causes
- G39 (corner offset) was commanded without G41/G42 active.
- Program logic error in compensation sequence.
Troubleshooting Steps
- Step 1: Verify G41 or G42 is active before G39.
Missing compensation start identified. - Step 2: Add G41/G42 before G39 or remove G39.
Program executes the correct compensation sequence.
How to Reset
Fix the compensation sequence and reset to clear the alarm.
Source: Fanuc 0i/0iMate Alarm Code List, FANUC Corporation
Category: CNC