Heidenhain · TNC CNC Controllers
This error indicates that Safety Operating Mode (SOM) 4 is not possible for the CC%2 controller. The common causes include Keylock Switch 1 not being in automatic mode (BA1), a defective Keylock Switch 1, or a wiring error.
Click steps to track your progress.
Set Keylock switch 1 to automatic mode (BA1).
Test the functionality of Keylock switch 1; verify its different positions and their corresponding electrical signals.
Inspect the wiring connected to Keylock switch 1 for any breaks, shorts, or loose connections.
Measure continuity across the contacts of Keylock switch 1 in each position to confirm proper operation.