Mitsubishi MELSEC-Q QD77MS, User Manual

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Chapter 1 Product Outline
(b) 2-axis linear interpolation control
(Note)
This controls interpolation along a linear locus from the start point address
(current stop position) defined by two axes.
[Control using the absolute system]
1) This performs linear interpolation using two axes from the start point
address to the endpoint address.
2) The start point address and the specified address determine the
direction of travel.
[Example]
The operation when the start point address is 800 for axis 1 and 2000
for axis 2 and the positioning address specified to 2000 for axis 1 and
8000 for axis 2, is shown below.
2000
800
8000 2000 0
Axis 1
Axis 2
Specified address
(8000, 2000)
Positioning operation
Start point address
(2000, 800)
[Control using the increment system]
1) This performs positioning from the specified increment of travel from the
start point address.
2) The sign of the travel increment determines the direction of travel.
• For positive travel increment…….Positioning in the positive direction
(direction of address increase)
• For negative travel increment…….Positioning in the negative direction
(direction of address decrease)
[Example]
The operation when the start point address is 800 for axis 1 and 2000
for axis 2 and the positioning address specified to 1200 for axis 1 and
6000 for axis 2, is shown below.
2000
800
8000 2000 0
Axis 1
Axis 2
End position when the travel increment
is 1200 for axis 1 and 6000 for axis 2.
Positioning operation
Start point address
(2000, 800)
REMARK
(Note): The interpolation speed during linear interpolation control can be selected
from "composite speed" and "reference axis speed" using the interpolation
speed designation method of detailed parameter 1. (Refer to Section 5.2.3
information about setting "
Pr.20
Interpolation speed designation method" of
the detailed parameter 1.)