Mitsubishi Electronics QD75P, QD75D Operation pattern Positioning, Axis Arc address Command speed

9 MAJOR POSITIONING CONTROL

MELSEC-Q

Positioning data setting example

[Reference axis is designated as axis 1.]

The following table shows setting examples when "4-axis linear interpolation control (ABS linear 4)" 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 3 and axis 4.)

		Axis	Axis 1	Axis 2	Axis 3	Axis 4
			(reference	(interpolation	(interpolation	(interpolation
Setting item			axis) setting	axis) setting	axis) setting	axis) setting
			example	example	example	example
		Operation pattern	Positioning	–	–	–
			complete
	Da.2	Control system	ABS linear 4	–	–	–
	Da.3	Acceleration time	1	–	–	–
		No.
		Deceleration time	0	–	–	–
		No.
data No. 1
	Da.5	Axis to be
Positioning			–	–	–	–
		interpolated
	Da.6	Positioning address/	4000.0 ∝ m	8000.0 ∝ m	4000.0 ∝ m	3000.0 ∝ m
1
		movement amount
Axis
		Arc address	–	–	–	–
		Command speed	6000.00	–	–	–
			mm/min
	Da.9	Dwell time	500ms	–	–	–
		M code	10	–	–	–

Setting details

Set "Positioning complete" assuming the next positioning data will not be executed.

Set absolute system 4-axis linear interpolation control.

Designate the value set in

" Pr.25 Acceleration time 1"

as the acceleration time at start.

Designate the value set in

" Pr.10 Deceleration time 0"

as the deceleration time at deceleration.

Setting not required (setting value will be ignored).

When axis 1 is used as a reference axis, the interpolation axes are axes 2, 3 and 4.

Set the end point address. (Assuming "mm" is set in

" Pr.1 Unit setting".)

Setting not required (setting value will be ignored).

Set the speed during movement to the end point address.

Set the time the machine dwells after the positioning stop (pulse output stop) to the output of the positioning complete signal.

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.

POINTS

•When the "reference axis speed" is set during 4-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 " Pr.8 Speed limit value".

•Refer to Section 9.1.6 "Interpolation control" for the reference axis and interpolation axis combinations.

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