Mitsubishi Electronics QD75P, QD75D Da.6 movement amount, Positioning address, Da.8 Command speed

9 MAJOR POSITIONING CONTROL

MELSEC-Q

Restrictions

An error will occur and the positioning will not start in the following cases. The machine will immediately stop if the error is detected during a positioning operation.

•If the movement amount of each axis exceeds "1073741824 (=230)" when "0: Composite speed" is set in " Pr.20 Interpolation speed designation method"

... The "Outside linear movement amount range error (error code: 504)" occurs at a positioning start.

(The maximum movement amount that can be set in " address/movement amount" is "1073741824 (=230)".)

Da.6

Positioning

Positioning data setting example

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

The following table shows setting examples when "2-axis linear interpolation control (INC linear 2)" 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

Da.1 Operation pattern

	Da.2	Control system
	Da.3	Acceleration time
		No.
1
No.		Deceleration time
		No.
data
		Axis to be
Positioning
	Da.6 movement amount
		interpolated
		Positioning address/
1	Da.7	Arc address
Axis
	Da.8 Command speed

Da.9 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.
INC linear 2			–			Set incremental system 2-axis linear interpolation control.
						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.
9000.0	∝	m	-3000.0	∝	m	Set the movement amount. (Assuming "mm" is set in
						"	Pr.1	Unit setting".)

–– Setting not required (setting value will be ignored).

6000.00	–	Set the speed during movement.
mm/min
		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

•When the "reference axis speed" is set during 2-axis linear intrpolation control, set so the major axis side becomes the reference axis. If the minor axis side is set as

the reference axis, the major axis side speed may exceed the " value".

Pr.8

Speed limit

9 - 32