Mitsubishi Electric A1SD75P1-S3 User Manual page 339

9 MAIN POSITIONING CONTROL
(2) 2-axis circular interpolation control with center point designation
Reverse direction
Reverese direction
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POINT
Set a value in " Da.7 Command speed" so that the speed of each axis does not
exceed the " Pr.7 Speed limit value". (The speed limit does not function for the
speed calculated by the AD75 during interpolation control.)
(INC right arc, INC left arc)
Operation chart
In the increment system, 2-axis circular interpolation control with center point
designation, addresses established by a machine zero point return 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.5 Positioning address/movement amount", in an arc path having as its
center the address (arc address) of the center point set in " Da.6 Arc address".
Forward direction
Start point address
(current stop position)
Radius
Reverse 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
Reverese direction
Movement by circular interpolation
Arc center point
(Arc address)
Arc center point
(Arc address)
9 - 43
MELSEC-A
Movement amount
to the end point
Forward direction
=
Movement amount 0
Forward direction