Siemens SINUMERIK 840D sl Function Manual page 751

MD24855 $MC_TRACYL_ROT_AX_FRAME_2 = 2
With this setting, the axial offset of the rotary axis is taken account of in the transformation up
to the SZS. The axial offsets of the rotary axis included in the SZS frames are entered into the
transformation frame as offsets on the peripheral surface. This setting is only effective if the
transformation frame has been configured.
Frame expansions:
The expansions described below are only valid for the following machine data settings:
MD10602 $MN_FRAME_GEOAX_CHANGE_MODE = 1
MD10602 $MN_FRAME_GEOAX_CHANGE_MODE = 2
The selection of transformation TRACYL produces a virtual geometry axis on the peripheral
surface, coupled via the rotary axis, which is only taken into account in the contour frame but
does not have a reference to an axial frame. All components of the virtual geometry axis are
deleted. All other geometry axes accept their axial components when the transformation is
selected.
Translations:
When selecting TRACYL, translations of the virtual axis are deleted. Translations of the rotary
axis can be taken into account in the transformation.
Rotations:
Rotation before the transformation is taken over.
Mirroring:
Mirroring of the virtual axis is deleted. Mirroring of the rotary axis can be taken into account in
the transformation.
Scaling:
Scaling of the virtual axis is deleted. Scaling of the rotary axis can be taken into account in the
transformation.
Example:
Machine data for TRACYL:
; FRAME configurations
$MC_MM_SYSTEM_FRAME_MASK = 'H41'
$MC_CHSFRAME_RESET_MASK = 'H41'
$MC_CHSFRAME_POWERON_MASK = 'H41'
$MN_FRAME_GEOAX_CHANGE_MODE = 1
$MC_RESET_MODE_MASK = 'H4041'
;$MC_RESET_MODE_MASK = 'H41'
;$MC_GCODE_RESET_VALUES[7] = 2
$MC_GCODE_RESET_VALUES[7] = 1
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K2: Axis Types, Coordinate Systems, Frames
; TRAFRAME, SETFRAME
; Frames are active after Reset.
; Frames are deleted for Power On.
; Frames are calculated after switchover
of the geo axis.
; Basic frame is not deselected after Re-
set.
; Basic frame is deselected after Reset.
; G54 is the default setting.
; G500 is the default setting.
10.5 Frames
751