Siemens SINUMERIK 840D sl Function Manual page 440

M1: Kinematic transformation
7.3 TRAANG oblique angle transformation (option)
Selection and deselection
● An intermediate motion block is not inserted (phases/radii).
● A spline block sequence must be terminated.
● Tool radius compensation must be deselected.
● The current frame is deselected by the control system.
(corresponds to programmed G500).
● An active working area limitation is deselected by the control for the axes affected by the
transformation (corresponds to programmed WALIMOF).
● An activated tool length compensation is included in the transformation by the control.
● Continuous path control and rounding are interrupted.
● DRF offsets must have been deleted by the operator.
● All axes specified in machine data MD24110 $MC_TRAFO_AXES_IN_n must be
synchronized on a block-related basis (e.g. no traversing instruction with POSA...).
Tool change
Tools may only be changed when the tool radius compensation function is deselected.
Frame
All instructions which refer exclusively to the base coordinate system are permissible (FRAME,
tool radius compensation). Unlike the procedure for inactive transformation, however, a frame
change with G91 (incremental dimension) is not specially treated. The increment to be
traversed is evaluated in the workpiece coordinate system of the new frame - regardless of
which frame was effective in the previous block.
Extensions
When TRAANG is selected and deselected, the assignment between geometry axes and
channel axes can change. The user can apply these geometric contour sections to the axial
frame as a translation, rotation, scaling and mirroring in relation to the x and z plane with respect
to the inclined infeed axis.
For additional information on these frame corrections with transformations, see:
References:
Function Manual, Basic Functions; Axes, Coordinate Systems, Frames (K2)
Exceptions
Axes affected by the transformation cannot be used
● As a preset axis (alarm)
● To approach the fixed point (alarm)
● For referencing (alarm)
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Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions