Accuracy of circle positions

Question:

When running a path contour with the functions CC and C, the control issues the error message “Circle end pos. incorrect”.

Answer:

The accuracy of the starting point, center point, and end point circle data must be better than the value set in the machine parameter. Increase the value if necessary, up to 16 µm.

On the TNC 407, TNC 415/425, TNC 426/430 and iTNC 530 this setting is made in machine parameter 7431.

On the TNC 320, TNC 620, TNC 640 and TNC7 the value is defined in CfgGeoTolerance (no. 200901).