HEIDENHAIN ITNC 530 - CONVERSATIONAL PROGRAMMING User Manual page 560

Displaying a basic rotation
The angle of the basic rotation appears after ROTATION ANGLE
whenever PROBING ROT is selected. The TNC also displays the
rotation angle in the additional status display (STATUS POS.)
In the status display a symbol is shown for a basic rotation whenever
the TNC is moving the axes according to a basic rotation.
Canceling a basic rotation
U Select the probe function by pressing the PROBING ROT soft key.
U
Enter a rotation angle of zero and confirm with the ENT key.
U Terminate the probe function by pressing the END key.
560 Manual Operation and Setup