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7. POSITIONING CONTROL
7
−
38
[Program Example]
This program conducts circular interpolation control using auxiliary point
designation under the conditions below.
(1) System configuration
Circular interpolation control of Axis 1 and Axis 2 using auxiliary point
designation.
A172SHCPUN
Axis 1
Positioning start command (X000)
A172B
M
M
M
M
A172S
ENC
A1S
X10
Axis 2
Axis 3
Axis 4
MR-[]-B
MR-[]-B
MR-[]-B
MR-[]-B
(2) Positioning details
The positioning by the Axis 1 and Axis 2 servomotors is shown in the diagram
below.
0
(10000,
20000)
10000
50000
80000
20000
30000
40000
Axis 2 positioning direction
(Forward direction)
Axis 1 positioning
direction
(Forward direction)
End point (80000, 30000)
Positioning by No. 31 servo program
Auxiliary point (40000, 50000)
Arc center
point
Start
point
(3) Positioning conditions
(a) The positioning conditions are shown below.
Servo Program Number
Item
No. 31
Positioning method
Absolute data
Positioning speed
1000
(b) Positioning start ........... leading edge of X000 (OFF
→
ON)
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