Siemens SINUMERIK 840D sl Function Manual page 47

Axis assignments
The three translatory axes included in the transformation are assigned to any channel axes
via machine data $MC_TRAFO_GEOAX_ASSIGN_TAB_n[0..2] and
$MC_TRAFO_AXES_IN_n[0..2]. The following must apply for the assignment of channel axes
to geometry axes for the transformation:
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[0] = $MC_TRAFO_AXES_IN_n[0]
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[1] = $MC_TRAFO_AXES_IN_n[1]
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[2] = $MC_TRAFO_AXES_IN_n[2]
The axes with corresponding index must be assigned to each other.
Parameter assignment procedure
• Enter the type of transformation according to the previous table as machine data:
$MC_TRAFO_TYPE_n
• Assign channel axes to the geometry axes of the transformation.
• For a 3-axis transformation, set the values for the axis, which is not required:
-
-
• For a 4-axis transformation, set the following for the 3 linear axes
-
-
Complete examples of a 3-axis and 4-axis transformation can be found in Chapter "Example
for 3- and 4-axis Transformation".
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[geoax] = 0
$MC_TRAFO_AXES_IN_n[geoax] = 0
$MC_TRAFO_AXES_IN_n[4] = 0; → there is no 2nd rotary axis
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[geoax] = ...
$MC_TRAFO_AXES_IN_n[geoax] = ...
$MC_TRAFO_AXES_IN_n[4] = 0; → there is no 2nd rotary axis
F2: Multi-axis transformations
1.3 3-axis and 4-axis transformations
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