Spindle drive lock, status of permissive button invalid
Heidenhain · TNC CNC Controllers
What does 231-A095 mean?
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 permissive button was either not pressed or was not released beforehand, or due to an internal software error.
Common Causes
- Attempt to switch on a spindle drive while the guard door was open and the permissive button was not pressed or not let go beforehand.
- Faulty permissive button or its associated wiring.
- Internal software error.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Ensure the guard door is closed before attempting to activate the spindle.
- 2
If guard door must be open for a specific operation, ensure the permissive button is pressed and released correctly according to operational procedures.
- 3
Check the wiring and functionality of the permissive button; verify its electrical contacts and signal integrity.
- 4
Verify the software version of the controller and update it if a known issue related to permissive button logic exists.