9MAJOR POSITIONING CONTROL

[2]3-axis linear interpolation control (INC linear 3)

Operation chart

MELSEC-Q

In the incremental system 3-axis linear interpolation control, using an address established by a machine OPR in the 3-axis coordinate space, a linear interpolation positioning is carried out from the current stop position (start point

address) to a position at the end of the movement amount set in the "

Da.6

Positioning address/movement amount". The movement direction depends on the sign (+ or -) of the movement amount.

Forward direction

 

 

Movement by linear interpolation

 

positioning of the X axis, Y axis and Z axis

Y2

 

Forward direction

 

Z2

Y axis movement amount

 

Z axis

 

movement amount

 

X2

 

Reverse direction

Forward direction

 

Start point address (X1, Y1, Z1)

X axis movement

(current stop position)

amount

 

Reverse direction

 

Reverse direction

 

Example

When the axis 1 movement amount is 10000, the axis 2 movement amount is 5000 and the axis 3 movement amount is 6000, positioning is carried out as follows.

Stop address after the positioning control

 

Axis 2

 

Axis 3

 

 

 

5000

Axis 2 movement amount

 

6000

Axis 3 movement

(5000)

 

amount (6000)

Start point address

 

 

 

 

(current stop position)

 

 

5000

Axis 1

 

10000

Axis 1 movement amount (10000)

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Mitsubishi Electronics QD75P, QD75D user manual Movement amount Reverse direction, Start point address X1, Y1, Z1, 6000