3009
Machining Interference Occurred
Fanuc · Series 0i Manual Guide
What does 3009 mean?
This P/S alarm indicates that an interference has occurred during machining, such as the tool path colliding with the opposite machining area or an existing feature. A common cause is a cutter radius being too large for the defined machining area, posing a risk of tool breakage or part damage.
Common Causes
- Tool path intersects with a non-machined surface or fixture.
- Simultaneous axis motion creates a collision path.
- Programmed offset causes the tool to move into an occupied space.
- Collision detection system activated due to programmed interference.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Modify the machining program to resolve the interference, potentially by adjusting the cutter radius, optimizing the tool path, or altering the machining area.
Verified technical data. Last updated: March 2026
Related Faults
Source: Fanuc Series 0i Manual Guide