Siemens SINUMERIK 840D sl Function Manual page 542

Kinematic Transformation (M1)
TRACYL
7.3.5 Special system reactions with TRACYL
The transformation can be selected and deselected via part program or MDA.
Please note on selection
● An intermediate motion block is not inserted (phases/radii).
● A series of spline blocks must be concluded.
● Tool radius compensation must be deselected.
● The frame which was active prior to TRACYL is deselected by the control system.
● The control system deselects an active working area limit for axes affected by the
● Continuous path control and rounding are interrupted.
● DRF offsets must have been deleted by the operator.
● In the case of cylinder generated surface curve transformation with groove wall
Please note on de-selection
The same points apply as for selection.
Restrictions when TRACYL is active
The restrictions listed below must be noted when the TRACYL function is active:
Tool change
Tools may only be changed when the tool radius compensation function is deselected.
Supplementary conditions for TRACYL without groove side offset
With active TRANSMIT, the channel identifier of posBCS[ax[3]] must have another name in
the part program, like the geometry axes. If posBCS[ax[3]] is written only outside the
TRACYL transformation, this restriction does not apply if the axis has been assigned to a
geometry axis. With active TRACYL, no contour information is processed via ax[3].
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.
542
(corresponds to Reset programmed frame G500).
transformation.
(Corresponds to programmed WALIMOF).
compensation (axis configuration 2, TRAFO_TYPE_n=513), the axis used for the
correction (TRAFO_AXES_IN_n[3]) must be set to zero (y=0) so that the groove is
machined in the center of the programmed groove center line.
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions