Inovance H3U Series - Page 455

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6
6 Positioning and InterpolationG90G03: 2-axis counterclockwise absolute position arc interpolation
Current position
(start point)
(100, 50)
Y axis (Y1)
X axis(Y0)
Target position
(end point)
(150,100)
(0,0)
Segment2
R=50
or
I=0, J=50
Segment1
R=-50
or
I=50, J=0
It indicates an counterclockwise arc interpolation, wherein, S1/S2 indicates the target relative position of the
x- and y-axes, such as (150,100) 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 ((150,50) - (100,50)) = (50,0).
◆
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:
◆
Note
1) When an interpolation instruction (G90G01, G91G01, G90G02, G91G02, G90G02, or
G91G03) is used, parameters, such as the acceleration/deceleration time, of the X-axis (Y0)
prevail.
2) The user may monitor the corresponding special register for checking current pulse position,
as shown in the following table.