Spindle drive lock, operating mode is not allowed
Heidenhain · TNC CNC Controllers
What does 231-A096 mean?
This error indicates that a spindle drive was locked. This occurs when an attempt was on a spindle drive while the guard door was open, and the keylock switch was in the 'BA1' position ('unqualified operator'), or due to an internal software error.
Common Causes
- Attempt to switch on a spindle drive while the guard door was open and the keylock switch was in the 'BA1' position ('unqualified operator').
- Incorrect keylock switch position for the desired operation.
- Wiring error related to the keylock switch.
- Internal software error.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Ensure the guard door is closed before attempting to switch on the spindle drive.
- 2
Check the position of the keylock switch. Select an operating mode that permits spindle operation with or without the guard door open as required by the task and safety regulations.
- 3
Inspect the wiring of the keylock switch for any damage, loose connections, or incorrect terminations.
- 4
Verify the software version of the controller and update it if a known issue related to operating mode interlocks exists.