Siemens SINUMERIK 840D sl Programming Manual page 298

Transformations
7.8 Kinematic transformation
The velocity control makes allowance for the limits defined for the rotations.
Groove traversing-section
In the case of axis configuration 1, longitudinal grooves along the rotary axis are subject to
parallel limits only if the groove width corresponds exactly to the tool radius.
Grooves in parallel to the periphery (transverse grooves) are not parallel at the beginning
and end.
7-60
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
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