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9 MAJOR POSITIONING CONTROL
[2] 2-axis linear interpolation control (INC linear 2)
Operation chart
In incremental system 2-axis linear interpolation control, addresses established by
a machine OPR on a 2-axis coordinate plane are used. 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 "
address/movement amount". The movement direction is determined by the sign of
the movement amount.
Forward direction (Y axis)
Y axis movement
amount
Reverse direction
Reverse direction
Example
When the axis 1 movement amount is 9000 and the axis 2 movement amount is -3000, positioning
is carried out as follows.
Axis 2 movement amount
(-3000)
Start point address (X
(current stop position)
Y
2
Y
1
X
1
X axis movement amount
Start point address
Axis 2
(current stop position)
4000
1000
0
1000
Axis 1 movement amount (9000)
9 - 31
Da.6
Positioning
,Y
)
1
1
Movement by linear interpolation
positioning of the X axis and Y axis
X
2
Stop address after the
positioning control
5000
10000
MELSEC-Q
Forward direction (X axis)
Axis 1
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Troubleshooting
