Circular Interpolation - ICP DAS USA I-8092F User Manual

A.4.2 Circular Interpolation
I-8092F can be selected for circular interpolation. The circular interpolation is starting from the
current position (start point). After setting the center point of circular, the finish position and the
CW or CCW direction, the user can start the circular interpolation. Note: The coordinates setting
value is the relative value of the start point coordinates. In Fig. A-23, it explains the definition of
CW and CCW circular interpolations. The CW circular interpolation is starting from the start point
to the finish position with a clockwise direction; the CCW circular interpolation is with a
counter-clockwise direction. When the finish point is set to (0, 0), a circle will come out.
When performing the circular linear interpolation, the following parameters should be preset.
Range: R
Initial Speed: SV (PPS)
Driving Speed: V (PPS)
Acceleration: A (PPS/Sec)
Finish Position FP
Manual decelerating Point DP
Circular Center Position C
In Fig. A.24, it explains the long axis and the short axis. First, we define 8 quadrants in the
X-Y plane and put the numbers 0~7 to each quadrant. We find the absolute value of ax1 is
always larger than that of ax2 in quadrants 0, 3, 4 and 7, so we call ax1 is the long axis (ax2 is the
short axis) in these quadrants; in quadrants 1, 2, 5 and 6,ax2 is the long axis (ax1 is the short
axis). The short axis will output pulses regularly, and the long axis will output pulses depending
on the interpolation calculation.
ICPDAS
Fig. A-233 Circular interpolation
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I-8092F Software User Manual