Mitsubishi Electric MELSEC-Q QD75M User Manual page 426

9 MAJOR POSITIONING CONTROL
[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 "
Positioning address/movement amount", in an arc path having as its center the
address (arc address) of the center point set in "
Forward direction
Start point address
(Current stop position)
Reverse
direction
Reverse
direction
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".
Reverese direction
Radius
Arc center point
(Arc address)
Movement amount to the end point
Forward direction
Arc center point
Reverese direction
9 - 65
MELSEC-Q
Da.6
Da.7 Arc address".
Movement by circular interpolation
Movement amount
to the end point
(Arc address)
Movement amount = 0
Forward direction
Forward direction