Mitsubishi Electronics QD75D If the self-axis is set, an error will occur, Sub point designation

9 MAJOR POSITIONING CONTROL

Positioning data setting example

MELSEC-Q

[Reference axis and interpolation axis are designated as axis 1 and axis 2, respectively.]

The following table shows setting examples when "2-axis circular interpolation control with sub point designation (ABS circular sub)" is set in positioning data No. 1 of axis 1. (The required values are also set in positioning data No. 1 of axis 2.)

Axis

Setting item

Operation pattern

Da.2 Control system

	Da.3	Acceleration time
		No.
1	Da.4	Deceleration time
		No.
No.
data	Da.5	Axis to be
		interpolated
Positioning
	Da.6	Positioning address/
		movement amount
1	Da.7	Arc address
Axis

Da.8 Command speed

Dwell time

Da.10 M code

Axis 1

Axis 2

(reference

(interpolation

Setting details

axis) setting

axis) setting

example

example

Positioning

–

Set "Positioning complete" assuming the next positioning

complete

data will not be executed.

ABS circular

–

Set absolute system, 2-axis circular interpolation control with

sub

sub point designation.

Designate the value set in "

1

–

Pr.25

Acceleration time 1" as

the acceleration time at start.

Designate the value set in "

0

–

Pr.10

Deceleration time 0" as

the deceleration time at deceleration.

1

–

Set the axis to be interpolated (partner axis).

If the self-axis is set, an error will occur.

8000.0

∝

m

6000.0

∝

m

Set the positioning address. (Assuming "mm" is set in

"

Pr.1

Unit setting".)

Set the sub point address. (Assuming that the "

Unit

4000.0 ∝

m

3000.0 ∝

m

Pr.1

setting" is set to "mm".)

6000.00

Set the speed when moving to the end point address.

–

(Designate the composite speed in "

Pr.20

Interpolation

mm/min

speed designation method".)

Set the time the machine dwells after the positioning stop

500ms

–

(pulse output stop) to the output of the positioning complete

signal.

10

–

Set this when other sub operation commands are issued in

combination with the No. 1 positioning data.

Refer to Section 5.3 "List of positioning data" for information on the setting details.

POINT

Set a value in " Da.8 Command speed" so that the speed of each axis does not exceed the " Pr.8 Speed limit value". (The speed limit does not function for the speed calculated by the QD75 during interpolation control.)

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