9 MAJOR POSITIONING CONTROL

MELSEC-Q

(5) An error "No command speed" (error code: 503) occurs if a current speed (-1)

is set in "

Da.8

Command speed".

(6)The software stroke limit check is not carried out when the control unit is set to "degree".

Positioning data setting examples

[Setting examples when the reference axis and interpolation axis are designated as axes 1 and 2, respectively.]

The following table shows the setting examples when "2-axis speed control (forward run: speed 2)" is set in the positioning data No. 1 of axis 1 (reference axis).

Axis

Setting item

Da.1 Operation pattern

Da.2 Control system

 

 

 

 

Acceleration time

 

 

 

 

No.

No.1

 

Da.4

 

Deceleration time

data

 

 

 

No.

 

Da.5

 

Axis to be

 

 

Positioning

 

 

 

 

 

interpolated

 

 

 

 

 

 

 

 

Positioning address/

 

 

 

 

movement amount

1

 

 

 

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

Setting other than "Positioning complete" is not possible in

complete

speed control.

 

 

 

 

 

Forward run

Set 2-axis speed control.

 

 

speed 2

 

 

 

 

 

 

 

 

 

 

 

1

Designate the value set in "

Pr.25

Acceleration time 1" as

the acceleration time at start.

 

 

 

 

 

 

 

 

 

0

Designate the value set in "

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.

 

 

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

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

6000.00

3000.00

Set the speed to be commanded.

mm/min

mm/min

 

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

 

 

Set this when other sub operation commands are issued in

 

 

combination with the No. 1 positioning data. ("

 

M

10

Pr.18

code ON signal output timing" setting only possible in the

 

 

 

 

WITH mode.)

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

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Mitsubishi Electronics QD75P, QD75D user manual Axis Da.8 Command speed Da.9 Dwell time, Set 2-axis speed control