Siemens SINUMERIK 802D sl Function Manual page 233

● MD24920 TRANSMIT_BASE_TOOL_1
● MD24911 TRANSMIT_POLE_SIDE_FIX_1 = 0
Traversal of pole
The pole is defined as the center of rotation at point X=0, Y=0 of TRANSMIT plane (X
machine axis intersects the center of rotation).
In the vicinity of the pole, small positional changes in the geometry axes X, Y generally result
in large changes in the machine rotary axis position (exception: path only results in a
movement of the XM axis).
Workpiece machining operations close to the pole are therefore not recommended since
these may require sharp feedrate reductions to prevent overloading of the rotary axis. Avoid
selecting TRANSMIT when the tool is positioned exactly on the pole. Ensure that the path of
the tool center point does not travel through the X0/Y0 pole.
Examples: Machine data settings for TRANSMIT
General settings: Axis names: XM->X1, ZM->Z1, CM->SP1
● Machine axis name
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
The control is informed of the position of the tool zero point in relation to the origin of the
coordinate system declared for TRANSMIT. The MD has three components for the three
axes of the Cartesian coordinate system.
Assignment of axis components:
TRANSMIT_BASE_TOOL_1[0]=Tx
TRANSMIT_BASE_TOOL_1[1]=Ty
TRANSMIT_BASE_TOOL_1[2]=Tz (see following figure)
Figure 12-3 Position of tool zero in relation to origin of the Cartesian coordinate system (center of
rotation)
Pole traversal continuous
MD10000 AXCONF_MACHAX_NAME_TAB[0]="X1"
MD10000 AXCONF_MACHAX_NAME_TAB[1]="Z1"
MD10000 AXCONF_MACHAX_NAME_TAB[2]="SP1"
MD10000 AXCONF_MACHAX_NAME_TAB[3]="SP2"
MD10000 AXCONF_MACHAX_NAME_TAB[4]=""
Kinematic Transformation (M1)
12.2 TRANSMIT
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