Mitsubishi Electronics QD75P Axis Setting item Reference Axis setting Example, Da.9 Dwell time

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 control.

•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 (ABS 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

Axis 1

(reference

axis) setting

example

Axis 2

(interpolation axis) setting example

Setting details

Axis 1 Positioning data No. 1

Da.1	Operation pattern	Positioning	–	Set "Positioning complete" assuming the next positioning
		complete		data will not be executed.
Da.2	Control system	ABS linear 2	–	Set absolute system 2-axis linear interpolation control.
				Designate the value set in "
Da.3	Acceleration time	1	–				Pr.25	Acceleration time 1" as
	No.			the acceleration time at start.
				Designate the value set in "
	Deceleration time	0	–				Pr.10	Deceleration time 0" as
	No.			the deceleration time at deceleration.
	Axis to be	1	–	Set the axis to be interpolated (partner axis).
	interpolated			If the self-axis is set, an error will occur.
Da.6	Positioning address/	10000.0 ∝ m	4000.0 ∝ m	Set the end point address. (Assuming "mm" is set in
	movement amount			"	Pr.1	Unit setting".)
Da.7	Arc address	–	–	Setting not required (setting value will be ignored).
Da.8	Command speed	6000.00	–	Set the speed during movement to the end point address.
		mm/min
				Set the time the machine dwells after the positioning stop
Da.9	Dwell time	500ms	–	(pulse output stop) to the output of the positioning complete
				signal.
Da.10	M code	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 - 30