Mitsubishi Electric MELSEC-L LD75D, User Manual

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(2) 2-axis linear interpolation control (INC linear 2)
(a) Operation chart
In incremental system 2-axis linear interpolation control, designated 2 axes are used. Linear interpolation
positioning of movement amount set in "[Da.6] Positioning address/movement amount" is carried out from the
current stop position (start point address). The movement direction is determined by the sign of the movement
amount.
Ex.
When the axis 1 movement amount is 9000 and the axis 2 movement amount is -3000, positioning is
carried out as follows.
(b) Restrictions
An error will occur and the positioning will not start in the following cases. The machine will immediately stop if
the error is detected during positioning control.
• If the movement amount of each axis exceeds "1073741824 (=2
30
)" when "0: Composite speed" is set in
"[Pr.20] Interpolation speed designation method"
*1
*1 The error "Outside linear movement amount range" (error code: 504) occurs at a positioning start. (The maximum
movement amount that can be set in "[Da.6] Positioning address/movement amount" is "1073741824 (=2
30
)".)
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)
Start point address (X1,Y1)
X1 X2
Y2
Y1
5000
4000
1000
0 1000 10000
Axis 2 movement
amount (-3000)
Axis 2
Axis 1
Stop address after the
positioning control
Axis 1 movement amount (9000)
Start point address
(current stop position)