Siemens Sinumerik 840D Operating Turning page 63
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Also See for Sinumerik 840D:
- Function manual (920 pages) ,
- Diagnostics manual (714 pages) ,
- Operating manual (610 pages)
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Circular interpolation
5.1 Circular interpolation
Code
G02 (clockwise)
Code
G03 (anti-clockwise)
A circular interpolation permits the traversing of the tool with a defined
speed along a circular path from the present start point to the programmed
destination point.
Apart from the destination point coordinates, the control unit also needs
statements about the sense of rotation and the centre of the circle.
The centre is entered with "I", "J" and "K" with incremental dimensions with
the centre point as origin.
The following assignment applies:
I for the X-axis
J for the Y-axis
K for the Z-axis
Programming example with G02: Explanation:
.....
N40 G00 X30 Y40 Z2
N50 G01 Z-5
N60 G02 X50 Y40 I10 J-7
N70 G01 Z2 F1000
.....
Y
start point
J
Y
30
40
The following example describes an anti-clockwise circular interpolation as
shown in the sketch above.
Note:
The endpoint in the sketch is now the starting point for the circular interpo-
lation.
Programming example with G03: Explanation:
.....
N40 G00 X50 Y40 Z2
N50 G01 Z-5
N60 G03 X40 Y40 I-10 J-7
N70 G01 Z2 F1000
.....
840D/828D SINUMERIK Operate
With rapid traverse to the start point
Grooving with Z
Circular interpolation clockwise
destination point
centre point
I
50
With rapid traverse to the start point
Circular interpolation anti-clockwise
Page 9
X
Section 5
Notes
B503
B503
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