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6 Positioning and InterpolationG91G02: 2-axis clockwise relative position arc interpolation
The following gure shows a pulse output diagram.
Current position (start point)
(100,50)
Y axis (Y1)
X axis(Y0)
Targetposition
(end point)
Offset(50,50)
(0,0)
Segment2
R=50
or
I=50,J=0
Segment 1
R=-50
or
I=0,J=50
It indicates a clockwise arc interpolation, wherein, S1/S2 indicates the target relative position of the x-
and y-axes, such as (50,50) in the preceding gure. When the target position is the same, the example
for generation of an arc less than 180 degrees and more than 180 degrees when S3/S4 is in IJ (center
coordinate) mode and in R (radius) mode respectively is provided.
• In the rst segment, (I,J) = current center coordinate - Starting position coordination ((100,100) - (100,50)) = (0,50).
◆
Program example
In the rst arc, the IJ (center coordinate) mode is used:
In the rst arc, the R (radius) mode is used:
In the second arc, the IJ (center coordinate) mode is used:
In the second arc, the R (radius) mode is used:
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