Siemens SINUMERIK 840DE sl Function Manual page 25

Corner without pole traversal
①
Travel into the pole
②
Travel out of the pole
Figure 2-4 Processing on one pole side
Requirements:
AUTOMATIC mode,
MD24911 $MC_TRANSMIT_POLE_SIDE_FIX_1 = 1 or 2
or
MD24951 $MC_TRANSMIT_POLE_SIDE_FIX_2 = 1 or 2
The control system inserts a traversing block at the step change point. This block generates the
necessary rotation so that processing of the contour can continue on the same side of the pole.
Transformation selection in pole
If the processing operation must continue from a position on the tool center path which
corresponds to the pole of the activated transformation, then an exit from the pole is specified
for the new transformation.
Actual
MD24911 $MC_TRANSMIT_POLE_SIDE_FIX_1= 0
or
MD24951 $MC_TRANSMIT_POLE_SIDE_FIX_2= 0
is set (pole transition), then a rotation as small as possible is generated at the beginning of the
block originating in the pole. Depending on this rotation, the axis then traverses either in front
of or behind the turning center.
For
MD24911 $MC_TRANSMIT_POLE_SIDE_FIX_1= 1
Transformations
Function Manual, 06/2019, A5E47435470B AA
M1: Kinematics transformation
2.1 TRANSMIT face end transformation (option)
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