Mitsubishi Electric MELSEC-L LD75D, User Manual

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9.2.3
2-axis linear interpolation control
In "2-axis linear interpolation control" ("[Da.2] Control system" = ABS linear 2, INC linear 2), two motors are used to
carry out position control in a linear path while carrying out interpolation for the axis directions set in each axis. (Refer
to

Page 359, Section 9.1.6 for details on interpolation control.)
(1) 2-axis linear interpolation control (ABS linear 2)
(a) Operation chart
In absolute system 2-axis linear interpolation control, specified two axes are used to perform linear
interpolation positioning from the current stop position (start point address) to the address set in the "[Da.6]
Positioning address/movement amount" (end point address).
Ex.
When the start point address (current stop position) is (1000, 1000) and the end point address
(positioning address) is (10000, 4000), positioning is carried out as follows.
Y axis
movement
amount
X axis movement
amount
Reverse
direction
Forward
direction (X axis)
Reverse direction
Forward direction (Y axis)
Movement by linear interpolation
of the X axis and Y axis
(current stop position)
(positioning address)
Start point address (X1,Y1)
End point address (X2,Y2)
X1 X2
Y2
Y1
5000
4000
1000
0 1000
10000
(10000-1000=9000)
Axis 2 movement
amount
Axis 2
Axis 1
End point address
(positioning address)
Axis 1 movement amount
Start point address
(current stop position)
(4000-1000=3000)