Siemens sinumerik 808d Programming And Operating Manual page 192

Cycles
2.5 Turning cycles
Value
300101
300102
300103
300104
If a different value is programmed for the VARI parameter, the cycle is aborted after output of
alarm 61002 "Machining type defined incorrectly".
_VRT (variable retraction path)
The retraction path can be programmed on the basis of the initial thread diameter in the
_VRT parameter. For _VRT = 0 (parameter not programmed), the retraction path is 1 mm.
The retraction path is always measured according to the programmed system of units, inch
or metric.
PSYS (the last parameter displayed on the screen)
This parameter specifies the selection of longitudinal thread, face thread or taper thread.
Figure 2-8
192
Ext./int. Const. Infeed/const. cutting cross-section
O Constant infeed
I Constant infeed
O Constant cutting cross-section
I Constant cutting cross-section
0 = longitudinal thread
Turning Part 2: Programming (Siemens instructions)
Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0