Siemens SINUMERIK 840D sl Function Manual page 637

The axis response illustrated in the diagram above can be particularly useful when applied to
the axis of a rotatable tool in cases where it is used to place the tool in a defined direction (e.g.
tangential) in relation to the contour, but where the tangential control function must not be
applied. However, it is not a substitute for the tangential control function since the start and
end positions of the rotary axis must always be programmed.
Note
Additional offset motions of special axes (in this case, rotary axis C) are implemented via a
zero offset.
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
N4: Own channel - only 840D sl
10.4 Automatic path segmentation
637