Mitsubishi Electric QD75P1N User Manual page 410

9 MAJOR POSITIONING CONTROL
[1] 3-axis helical interpolation control with center point designation
(INC helical right, INC helical left)
Operation chart
In this control, positioning is carried out from the current stop position (X0, Y0, Z0)
to the movement amount position (X1, Y1, Z1) set in " Da.6 Positioning
address/movement amount". Circular interpolation with an arc path having its
center as the address of the center point (arc address) set in " Da.7 Arc address"
is carried out. Simultaneously, linear interpolation is carried out with the other
linear axis. The control path is helically rotated for the number of pitch set in
" Da.10 M code" of the linear axis to complete the positioning to the specified
position.
Operation chart
Positioning of a true circle 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 of the
circular interpolation axis to "0".
Operation chart
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MELSEC-Q
Circular interpolation plane
Circular interpolation plane