Siemens SINUMERIK 840D sl Function Manual page 1907

Tool radius compensation with CUT2D or CUT3DFS:
The current tool orientation is included in the tool radius compensation if either CUT2D or
CUT3DFS is active in G-code group 22 (tool compensation type).
For nonrotating toolholders, the behavior depends solely on the active plane of G code group
6 (G17 - G19) and is, therefore, identical to the previous behavior.
All other tool compensation types:
The behavior for all other tool compensation types is unchanged.
For CUT2DF and CUT3DFF in particular, the compensation plane used for TRC is determined
from the active frame, independent of the current tool orientation. Allowance is made for the
active plane (G17 - G19) and the behavior is, therefore, the same as before.
The two remaining G codes of group 22, CUT3DC and CUT3DF, are not affected by the
toolholder functionality because the tool orientation information in these cases is made
available by the active kinematic transformation.
Two rotary axes
Two general solutions exist for two rotary axes. The control itself chooses these two solution
pairs such that the orientation angles resulting from the frame are as close as possible to the
specified angles.
The two following options are available for specifying the angles:
1. If $TC_CARR21 or $TC_CARR22 contains a reference to a rotary axis, the position of
2. If $TC_CARR21 or $TC_CARR22 does not contain a reference to a rotary axis, the
Example
The control first calculates an angle of 10 degrees for one axis. The specified angle is 750
degrees. 720 degrees (= 2 * 360 degrees) are then added to the initial angle, yielding a final
angle of 730 degrees.
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
this axis at the start of the block in which the toolholder is activated is used to specify the
angle.
values contained in $TC_CARR13 or $TC_CARR14 are used.
Detailed Description
2.5 Toolholder with orientation capability
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