LS Industrial Systems XGT Series - Circular Interpolation Control with Designated Radius

Chapter 9 Functions
9-41
9.2.8 Circular interpolation control with designated radius
After being executed by circular interpolation command, then it operates along the trace of the circle made by
circular interpolation with 2 axes. According to「The turn no. of circular interpolation」, circular interpolation
which is bigger than 360° is available to be executed.
(1) Circular interpolation by method of absolute and designating radius
(a) Start operating at starting position and execute circular interpolation along the trace of the circle which has
radius set on circular interpolation auxiliary point of main-axis operating data. Center point of Circular arc
depends on the turning direction (CW, CCW) of「Circular interpolation mode」 and size setting of circular
arc (Circular arc<180°, Circular arc>=180°).
Circular interpolation mode Description
Radius, CW, Arc<180°
Execute circular interpolation in clockwise and the arc is smaller than
180°
Radius, CW, Arc>=180° Execute circular interpolation in clockwise and the arc is bigger than 10°
Radius, CCW, Arc<180°
Execute circular interpolation in counterclockwise and the arc is smaller
than 180° or same.
Radius, CCW, Arc>=180°
Execute circular interpolation in counterclockwise and the arc is bigger
than 180° or same.
Center
point
중심점
Arc < 180°
Arc >= 180°
「CW, Arc<180°」
Circular interpolation
action
Starting
position
Radius
Radius
「CW, Arc>=180°」
Circular interpolation action
Sub-axis
Forward
Main-axis
Forward
Origin
Center point
Arc < 180°
Radius
Sub-axis
Forward
Main-axis
Forward
Origin
Center point
「CCW, Arc>=180°」
Circular interpolation
action
Center
point
Arc>=180°
「CCW, Arc<180°」
Circular interpolation action
Starting
position
Radius
Goal
position
Goal position
CW, Arc<180° CW, Arc>=180° CCW, Arc<180° CCW, Arc>=180°