Siemens sinumerik 840D sl Function Manual page 51

Example:
1. A-axis is the rotary axis (parallel to the x direction):
MD24570 $MC_TRAFO5_AXIS1_1[0] = 1.0 (direction first rotary axis)
MD24570 $MC_TRAFO5_AXIS1_1[1] = 0.0
MD24570 $MC_TRAFO5_AXIS1_1[2] = 0.0
2. B-axis is the rotary axis (parallel to the y direction):
MD24572 $MC_TRAFO5_AXIS2_1[0] = 0.0 (direction 2nd rotary axis)
MD24572 $MC_TRAFO5_AXIS2_1[1] = 1.0
MD24572 $MC_TRAFO5_AXIS2_1[2] = 0,0
2.6.3 Generic orientation transformation variants
Expansion
Generic orientation transformation for 5-axis transformation has been extended with the
following variants for 3-and 4-axis transformation:
Variant 1
4-axis transformations
A 4-axis transformation is characterized by the exclusive use of the first rotary axis as an
entry axis of the transformation. The following applies:
MD24110 $MC_TRAFO_AXES_IN_1[4] = 0 (axis assignment for transformation 1) or
MD24210 $MC_TRAFO_AXES_IN_2[4] = 0 (axis assignment for transformation 2)
Variant 2
3-axis transformations
In a 3-axis transformation, one of the geometry axes is not present, by entering a zero in the
field:
MD24120 $MC_TRAFO_GEOAX_ASSIGN_TAB_1[n] (assignment between geometry axis
and channel axis for transformation 1)
MD24220 $MC_TRAFO_GEOAX_ASSIGN_TAB_2[n] (assignment between geometry axis
and channel axis for transformation 2)
Special functions: 3-Axis to 5-Axis Transformation (F2)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
2.6 Generic 5-axis transformation and variants
Detailed description
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