Siemens SINUMERIK 840D sl Function Manual page 532

Kinematic Transformation (M1)
TRACYL
Functionality
During transformation (both axis configurations), the full functionality of the control is
available, both for processing from the NC program and in JOG mode
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.
Figure 7-12
7.3.1 Preconditions for TRACYL
Number of transformations
Up to 10 transformation data blocks can be defined for each channel in the system. The
machine data names of these transformations begin with $MC_TRAFO .. and end with ... _n,
where n stands for a number between 1 and 10. The first machine data has the same
meaning as described for TRANSMIT:
MD24120 $MC_TRAFO_GEOAX_ASSIGN_TAB_n
MD24100 $MC_TRAFO_TYPE_n
MD24110 $MC_TRAFO_AXES_IN_n.
The special settings described below apply to MD24100 $MC_TRAFO_TYPE_n and
MD24100 $MC_TRAFO_AXES_IN_n with respect to generated cylinder surface
transformation (TRACYL).
532
Grooves with and without groove wall offset
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions