Siemens sinumerik 808d Programming And Operating Manual page 150

Cycles
2.5 Turning cycles
2. Step
The groove is machined vertically to the infeed direction in one or several steps whereby
each step, in turn, is divided according to the infeed depth. From the second cut along the
groove width onwards, the tool will retract by 1 mm before each retraction.
3. Step
Machining of the flanks in one step if angles are programmed under ANG1 or ANG2. Infeed
along the groove width is carried out in several steps if the flank width is larger.
150
Turning Part 2: Programming (Siemens instructions)
Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0