Siemens SINUMERIK 840D sl Function Manual page 516

M1: Kinematic transformation
7.2 TRANSMIT (option)
Rotation in pole
Figure 7-6
Selection of method
The method must be selected according to the capabilities of the machine and the
requirements of the part to be machined. The method is selected by machine data:
MD24911 $MC_TRANSMIT_POLE_SIDE_FIX_1
MD24951 $MC_TRANSMIT_POLE_SIDE_FIX_2
The first MD applies to the first TRANSMIT transformation in the channel and the second MD
correspondingly to the second TRANSMIT transformation.
VALUE
0
1
2
516
Traversal of x axis into pole (a), rotation (b), exit from pole (c)
Meaning
Pole traversal
The tool center point path (linear axis) must traverse the pole on a
continuous path.
Rotation around the pole.
The tool center point path must be restricted to a positive traversing range
of the linear axis (in front of turning center).
Rotation around the pole.
The tool center point path must be restricted to a negative traversing
range of the linear axis (behind turning center).
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions