Heidenhain · TNC CNC Controllers
This error indicates that a spindle drive was locked. This occurs when an attempt was made to switch on a spindle drive while the guard door was open AND the tool holder was also open, or due to an internal software error.
Click steps to track your progress.
Ensure the guard door is securely closed and locked.
Confirm that the tool holder is fully closed and locked.
Check the wiring and functionality of both the guard door sensor and the tool holder sensor for proper operation.
Verify the software version of the controller and update it if a known issue related to spindle interlocks exists.