6 POSITIONING CONTROL

(2)The travel direction is set by the stop address (starting address) and positioning address of each axis.

Forward

Current stop address

direction

 

(X1, Y1)

 

 

Y-axis travel value

 

Y1

 

 

 

 

Operation for X-axis, Y-axis

 

 

 

 

 

 

 

 

 

 

 

 

 

Y2

 

 

 

 

linear interpolation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Positioning address (X2, Y2)

Reverse

 

 

 

 

 

 

 

 

Forward direction

direction

0

X1

 

X2

 

 

 

 

Reverse

 

 

 

 

X-axis travel value

direction

 

(Note)

: Indicates setting data

 

 

 

 

 

Example

When the current stop address is (1000, 4000), and the positioning address is (10000, 2000).

 

4000

 

 

 

 

Current stop address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y-axis travel value

 

 

 

 

 

 

 

 

 

 

 

 

Positioning address

 

 

 

 

 

 

 

 

 

 

 

 

(4000 - 2000 = 2000)

2000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

5000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10000

 

 

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X-axis travel value

 

 

 

 

 

 

 

 

 

 

 

(10000 - 1000 = 9000)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.6.3 Positioning using absolute data method

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