Mitsubishi Electronics QD75P, QD75D user manual Operation chart, Movement amount =

9 MAJOR POSITIONING CONTROL

MELSEC-Q

[2]2-axis circular interpolation control with center point designation (INC circular right, INC circular left)

Operation chart

In the incremental system, 2-axis circular interpolation control with center point designation, addresses established by a machine OPR on a 2-axis coordinate plane are used. Positioning is carried out from the current stop position (start point

address) to a position at the end of the movement amount set in "

Da.6

Positioning address/movement amount", in an arc path having as its center the

address (arc address) of the center point set in " Da.7			Arc address".
Forward direction		Movement by circular interpolation
	Start point address
	(Current stop position)
			Movement amount
			to the end point
	Radius
Reverse			Forward direction
direction
		Arc center point
Reverse		(Arc address)
direction	Movement amount to the end point

Positioning of a complete round with a radius of the distance from the start point address to the arc center point can be carried out by setting the movement amount to "0".

Forward direction

Arc center point (Arc address)

Movement amount = 0

Reverese direction

Forward direction

Reverese direction

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