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6 POSITIONING CONTROL
(2) Positioning operation details
The operation to start as the following figure from start point and witch keeps a
nozzle at right angles toward the contour of line and that it goes around the
contour and witch is returned to start point. It is the following program when a
helical interpolation function is used.
-100000.0
-150000.0
50000.0
100000.0
0.0
150000.0
-150000.0
-100000.0
150000.050000.0
100000.0
Nozzle
Start point
Y (Axis 2)
X (Axis 1)
R=50
R=100
Z-axis (Rotation angle)
X,Y-axis plane
[Unit: m]
180
90
0
270
(3) Positioning conditions
(a) Helical interpolation conditions for constant-speed control are shown below.
Item Setting
Servo program No. 61, 62
Positioning speed 1000.00 [mm/min]
Control axis
Positioning address Central point
Axis 1 [µm] Axis 2 [µm] Axis 3 [degree] Axis 1 [µm] Axis 2 [µm]
Pass
point
Start point 0.0 150000.0 0.00000 — —
P1 50000.0 150000.0 0.00000 — —
P2 150000.0 50000.0 90.00000 50000.0 50000.0
P3 150000.0 -50000.0 90.00000 — —
P4 50000.0 -150000.0 180.00000 50000.0 -50000.0
P5 -50000.0 -150000.0 180.00000 — —
P6 -150000.0 -50000.0 270.00000 -50000.0 -50000.0
P7 -150000.0 50000.0 270.00000 — —
P8 -50000.0 150000.0 0.00000 -50000.0 50000.0
Vibration may cause the machine at the pass point depend on the speed
change. In this case, reduce the speed change (acceleration) in the FIN
acceleration/deceleration.
However, a locus will change depend on the setting time of the FIN
acceleration/deceleration.
(b) Constant-speed control start command ....... PX000 Leading edge
(OFF
ON)
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