MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 336)

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MELSEC-Q
9 MAJOR POSITIONING CONTROL
[2] 3-axis linear interpolation control (INC linear 3)
Operation chart
In the incremental system 3-axis linear interpolation control, using an address
established by a machine OPR in the 3-axis coordinate space, a linear
interpolation positioning is carried out from the current stop position (start point
address) to a position at the end of the movement amount set in the " Da.6
Positioning address/movement amount". The movement direction depends on the
sign (+ or -) of the movement amount.
Z axis
movement amount
X axis movement
amount
Y axis movement amount
Start point address (X1, Y1, Z1)
(current stop position)
Forward direction
Forward direction
Forward direction
Movement by linear interpolation
positioning of the X axis, Y axis and Z axis
Z 2
Y 2
X 2
Reverse direction
Reverse direction
Reverse direction
When the axis 1 movement amount is 10000, the axis 2 movement amount is 5000 and the axis
3 movement amount is 6000, positioning is carried out as follows.
Start point address
(current stop position)
Axis 1
Axis 3
Stop address after the positioning control
6000
Axis 2
Axis 3 movement
amount (6000)
5000
Axis 2 movement amount
(5000)
5000 10000
Axis 1 movement amount (10000)
Example