Mitsubishi Electronics Mitsubishi Programmable Logic Controller QD75P Manuel D’Utilisation

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MELSEC-Q

9   MAJOR POSITIONING CONTROL

 Positioning data setting examples

The following table shows setting examples when "position-speed switching
control (forward run: position/speed)" is set in positioning data No. 1 of axis 1.

Setting item

Setting example

Setting details

Da.1 Operation pattern

Positioning

complete

Set "Positioning complete" assuming the next positioning data will not
be executed. ("Continuous positioning control" and "Continuous path
control" cannot be set in "position/speed changeover control".)

Da.2 Control system

Forward run:

position/speed

Set position-speed switching control.

Da.3 Acceleration time No.

1

Designate the value set in " Pr.25  Acceleration time 1" as the

acceleration time at start.

Da.4 Deceleration time No.

0

Designate the value set in " Pr.10  Deceleration time 0" as the

deceleration time at deceleration.

Da.5

Axis to be
interpolated

–

Setting not required. (Setting value is ignored.)

Da.6

Positioning address/
movement amount

10000.0

µ

m

Set the movement amount at the time of position control before the

switching to speed control. (Assuming that the " Pr.1  Unit setting" is

set to "mm".)

Da.7 Arc address

–

Setting not required. (Setting value is ignored.)

Da.8 Command speed

6000.00mm/min Set the speed to be controlled.

Da.9 Dwell time

500ms

Set the time the machine dwells after the positioning stop (pulse
output stop) by position control to the output of the positioning
complete signal.  If the machine is stopped by speed control, the
setting value will be ignored.

A

x

is 1   Positioning data N

o

. 1

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.