LSIS XBE-DC08A, User Manual

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Chapter 8 Functions
8-58
8.2.10 Circular interpolation control of designating midpoint
Operate interpolation up to trace of the circle after operate by starting command of positioning operation (
「
indirect start
」
,
「
Start at a time
」
). And then, Midpoint is center of circle and it is move to rotation direction of circular interpolation.
「
The number of rotations of circular interpolation
」
can operate circular interpolation which is over 360 degrees with
setting value.
There is no limit for composition of axis 2 that it needs to use circular interpolation control. User can select 2 axes from
axis1 to axis 4 randomly.
(1) Circular interpolation by method of absolute coordinate, designating midpoint
(Absolute, Circular interpolation)
(a) Operate from start position and circular interpolate to target position with the trace of circle. And the circle has radius
which distance is to set midpoint position.
「
Circular interpolation auxiliary point
」
is midpoint of this circle.
(b) Moving direction depends on set direction on “circular interpolation mode” of operation data.
▪
「
Midpoint, CW
」
- Circular interpolation go clockwise from current position.
▪
「
Midpoint, CCW
」
- Circular interpolation go counterclockwise from current position.
Origin point
Midpoint
Target
position
Acting by circular interpolation
Radius
Start
position
Reverse of
sub axis
Forward of
sub axis
Radius
Forward of
main axis
Reverse of
sub axis
Reverse
of main
axis
Start
position
Midpoint, CW Midpoint, CCW
Forward of
sub axis
Target
position
Acting by circular interpolation
Midpoint
Forward of
main axis
Reverse
of main
axis
Origin point