Siemens SINUMERIK 840D sl Programming Manual page 665

Orientation of the tool is possible only in the plane perpendicular to the rotary axis. The
transformation supports machine types with movable tool and movable workpiece.
Three- and four-axis transformations are configured and programmed in the same way as five-
axis transformations.
Further information: Function Manual Transformations
Syntax
TRAORI(<n>)
TRAORI(<n>,<X>,<Y>,<Z>,<A>,<B>)
TRAFOOF
Meaning
TRAORI:
TRAORI(<n>):
<n>:
<X>,<Y>,<Z>:
<A>,<B>:
TRAFOOF:
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
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Activates the first specified orientation transformation
Activates the orientation transformation specified by n
Number of the transformation
Value: 1 or 2
Example:
TRAORI(1) activates orientation transformation 1
Component of orientation vector to which tool points
Programmable offset for the rotary axes
Deactivate transformation
Work preparation
3.9 Transformations
665