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7. POSITIONING CONTROL
7
−
34
Axis 1 positioning
direction
(Forward direction)
Axis 3 positioning
direction
(Forward direction)
Axis 2 positioning
direction
(Forward direction)
Axis 4 positioning
direction (Forward direction)
(Reverse direction)
(Reverse direction)
Positioning by No. 22 servo
program (Forward direction)
5000
5000
5000
(Reverse direction)
Fig. 7.8 Positioning by 4-axes Linear Interpolation Control
(3) Positioning conditions
(a) The positioning conditions are shown below.
Servo Program Number
Item
No. 22
Positioning method
Incremental
Positioning speed
1000
(b) Positioning start .................leading edge of X000 (OFF
→
ON)
(4) Operation timing
The operation timing for 4-axies linear interpolation control is shown below.
V
PLC ready (M2000)
All axes servo start command
(M2042)
All-axis servo start accept flag
(M2009)
Positioning start command (X000)
SVST instruction
Axis 1 start accept flag (M2001)
Axis 2 start accept flag (M2002)
Servo program No. 22
Axis 4 start accept flag (M2004)
Axis 3 start accept flag (M2003)
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