HEIDENHAIN TNC 320 User's Manual For Cycle Programming page 311

13
BASIC ROTATION over two holes (Cycle 401, DIN/ISO: G401) 13.3
Q402 Basic rotation/alignment (0/1): Define
whether the TNC should set the measured
misalignment as basic rotation or should align via
rotating the rotary table:
0: Set basic rotation
1: Rotate the rotary table
If you specify rotating the rotary table, the TNC
does not save the measured misalignment, even if
you have defined a table row in parameter Q305.
Q337 Set to zero after alignment?: Define
whether the TNC should set the angle of the aligned
rotary axis to 0 in the preset table or in the datum
table after the alignment:
0: Do not set the angle of the rotary axis to 0 in the
table after alignment
1: Set the angle of the rotary axis to 0 in the table
after alignment. The TNC sets the display to 0 only if
you have defined Q402=1.
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HEIDENHAIN | TNC 320 | User's manual for cycle programming | 9/2016