Siemens SINUMERIK User Manual page 144

The linear axes are positioned perpendicular to one another. The infeed axis cuts the rotary axis.
With groove wall offset (transformation type 513)
Kinematics as above, but an additional longitudinal axis parallels to the peripheral direction.
The linear axes are positioned perpendicular to one another.
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.
Programming and Operating Manual (Turning)
144
01/2017