Siemens SINUMERIK Series Function Manual page 588

N4: Own channel - only 840D sl
9.5 Rotatable tool
Figure 9-7
Example: Circular interpolation
In circular interpolation mode, particularly when path segmentation is active, the tool axes
rotate along a path tangentially aligned to the programmed path axes in each sub-block.
Programming example:
Program code
:
:
N2 TANG (C, X, Y, 1, "B")
N5 G0 F60 X10 Y10
N8 TRAILON (C1, C, 1)
N9 TANGON (C, -90)
N10 G02 X30 Y30 I20 J0 SPN=2 PON
588
Illustration of programming example in XY plane
Comment
; Definition of leading and following
axes,
; C is the slave axis for X and Y in the
; basic coordinate system
; Start position
; Activate coupled motion of the
; rotatable tool axes C/C1
; for lower and upper tool
; Activate tangential control
; with offset 270°
; Circular interpolation with path
segmentation,
; 2 strokes are executed with 270°
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Extended Functions