Siemens Sinumerik 840D sl Programming Manual page 333

Tool orientation
Depending on the orientation direction selected for the tool, the active working plane (G17,
G18, G19) must be set in the NC program in such a way that tool length offset works in the
direction of tool orientation.
Note
When the transformation is enabled, the positional data (X, Y, Z) always relates to the tip of
the tool. Changing the positions of the rotary axes involved in the transformation causes
compensating motion of the remaining machine axes - which means that the position of the
tool tip remains unchanged.
Orientation transformation always points from the tool tip to the tool adapter.
Offset for orientation axes
When orientation transformation is activated an additional offset can be programmed directly
for the orientation axes.
Parameters can be omitted if the correct sequence is used in programming.
Example:
TRAORI(, , , ,A,B) ; if only a single offset is to be entered
As an alternative to direct programming, the additional offset for orientation axes can also be
transferred automatically from the work offset currently active. Transfer is configured in the
machine data.
Examples
TRAORI(1,0,0,1)
TRAORI(1,0,1,0)
TRAORI(1,0,1,1)
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
6.2 Three, four and five axis transformation (TRAORI)
; The basic orientation of the tool is in the Z direction
; The basic orientation of the tool is in the Z direction
; The basic orientation of the tool is in the Y/Z direction
(corresponds to the position -45°)
Transformations
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