Siemens SINUMERIK 840D sl Function Manual page 643

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.
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
N15 G0 X70 Y10 SPOF
N17 TANGON (C, 90)
N20 G03 X35,86 Y24,14 CR=20 SPP=16 SON
N25 G0 X74.14 Y35.86 C0 PON
N27 TANGON (C, 0)
N30 G03 X40 Y50 I-14,14 J14,14 SPN=5 SON
N35 G0 X30 Y65 C90 SPOF
N40 G91 X-10 Y-25 C180
N43 TANGOF
N45 G90 G02 Y60 I0 J10 SPP=2 PON
N50 SPOF
N55 TRAILOF (C1, C)
N60 M2
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
N4: Own channel - only 840D sl
Comment
; definition tangential control
; leading axes: X, Y
; following axis: C
; coupling factor: 1
; basic coordinate system
; starting position
; coupled motion: ON
; tangential control: ON
; offset angle: -90° or 270°
; circular interpolation
; path segmentation → 2 lifts
; positioning
; stroke initiation OFF
; tangential control: ON
; offset angle: 90°
; circular interpolation
; path segmentation → 4 lifts
; punch initiation: ON
; positioning
; C/C1 axis: 0°
; nibbling initiation: ON
; tangential control: ON
; offset angle: 0°
; circular interpolation
; path segmentation → 5 lifts
; punch initiation: ON
; positioning
; stroke initiation OFF
; positioning, incremental
; C/C1 axis: +180°
; 270° absolute
; tangential control: OFF
; circular interpolation
; path segmentation → 2 lifts
; stroke initiation OFF
; coupled motion: OFF
10.5 Rotatable tool
643