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Chapter 9 Major Positioning Control
9.2.4 3-axis linear interpolation control
In "3-axis linear interpolation control" ("
Da.2
Control method
" = ABS linear 3, INC linear
3), three 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 Section 9.1.6 "Interpolation control" for details on interpolation control.)
[1] 3-axis linear interpolation control (ABS linear 3)
Operation chart
In the absolute system 3-axis linear interpolation control, the designated 3 axes
are used. Linear interpolation positioning is carried out from the current stop
position (start point address) to the address (end point address) set in the "
Da.6
Positioning address/movement amount
".
End point address (X
2
,Y
2,
Z
2
)
(Positioning address)
Movement by linear interpolation
of the X axis, Y axis and Z axis
Y axis movement amount
Start point address (X
1
,Y
1
,Z
1
)
(Current stop position)
Forward direction (X axis)
Forward direction (Z axis)
Reverse direction
Forward direction
(Y axis)
X axis movement amount
Z ax
is m
ovem
ent a
mou
nt
Reverse direction Reverse direction
End point address
(positioning address)
Axis 2 movement amount (8000-2000=6000)
Start point address
(current stop position)
Axis 1
Axis 3
Axis 2
8000
Axis 3 movement amount
(4000-1000=3000)
4000
2000
1000
1000
0
4000
Axis 1 movement amount
(4000-1000=3000)
Example
When the start point address (current stop position) is (1000, 2000, 1000) and the end point address
(positioning address) is (4000, 8000, 4000), positioning is carried out as follows.
Содержание MELSEC-L Series
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Страница 690: ...12 34 Chapter 12 Expansion Control MEMO ...
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