Siemens SINUMERIK 840D sl Function Manual page 555

Frames
Frame adjustments for selection and deselection of the TRACON are carried out as if there
was only the first chained transformation. Transformations on the virtual axis cease to be
effective when TRAANG is selected.
JOG
The persistent transformation remains in effect when traversing with JOG.
Constraints
The persistent transformation does not change the principle operating sequences in the
NCK. All restrictions applying to an active transformation also apply to the persistent
transformation.
A RESET command still deselects any active transformation completely; the persistent
transformation is selected again. The persistent transformation is not reselected under error
conditions. A corresponding alarm is generated to indicate the error constellation.
Alarm 14401 or 14404 can be activated when TRAANG is the persistent transformation.
When the persistent transformation is active, other transformation alarms may generated in
response to errors depending on the transformation type selected.
The transformation is deselected implicitly during referencing. A RESET or START command
must be issued after referencing, in order to reselect the persistent transformation.
Example
For a lathe with an inclined additional Y axis, the transformation of the inclined axis should
be part of the machine configuration and therefore does not have to be considered by the
programmer. With TRACYL or TRANSMIT transformations are selected, which must then
include the TRAANG. When the programmed transformations are deactivated, TRAANG is
automatically activated again. In the HMI operator interface TRACYL or TRANSMIT is
displayed.
Machine data for a turning machine with Y1 axis inclined in relation to X1 but perpendicular
to Z1.
CANDATA (1)
; Kinematic without transformations
MD20080 $MC_AXCONF_CHANAX_NAME_TAB[1] = "Y2"
MD20050 $MC_AXCONF_GEOAX_ASSIGN_TAB[0] = 1
MD20050 $MC_AXCONF_GEOAX_ASSIGN_TAB[1] = 0
MD20050 $MC_AXCONF_GEOAX_ASSIGN_TAB[2] = 3
; Data for TRAANG
MD24100 $MC_TRAFO_TYP_1 = 1024; TRAANG Y1 axis inclined to X1, perpendicular to Z1
MD24110 $MC_TRAFO_AXES_IN_1[0]=2
MD24110 $MC_TRAFO_AXES_IN_1[1]=1
MD24110 $MC_TRAFO_AXES_IN_1[2]=3
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
M1: Kinematic transformation
7.5 Chained transformations
555