12 CONTROL SUB FUNCTIONS

MELSEC-Q

(4)If the "new acceleration/deceleration time" is set to "0" and the speed is changed after the "new acceleration/deceleration time" is validated, the operation will be controlled with the previous "new acceleration/deceleration time".

Example

Cd.12 Acceleration/deceleration time change during speed change, enable/disable selection

Cd.10 New acceleration time value

Cd.11 New deceleration time value

 

 

 

New acceleration/deceleration

 

 

 

time ( Cd. 10 ,

Cd. 11 )

V

 

Speed change

 

 

 

Speed change

 

 

 

Speed change

 

 

 

 

 

Controlled with the acceleration/

 

 

 

deceleration time in the parameter.

 

 

 

 

t

Disabled

Enabled

 

 

 

 

0

1000

0

 

(5)The acceleration/deceleration time change function is disabled for JOG operation and inching operation.

POINT

If the speed is changed when an acceleration/deceleration change is enabled, the "new acceleration/deceleration time" will become the acceleration/deceleration time of the positioning data being executed. The "new acceleration/deceleration time" remains valid until the changeover to the next positioning data. (The automatic deceleration processing at the completion of the positioning will also be controlled by the "new acceleration/deceleration time".)

[3] Setting the acceleration/deceleration time change function

To use the "acceleration/deceleration time change function", write the data shown in the following table to the QD75 using the sequence program.

The set details are validated when a speed change is executed after the details are written to the QD75.

 

 

 

 

Setting

 

Buffer memory address

 

 

Setting item

Setting details

Axis

Axis

Axis

Axis

 

 

value

 

 

 

 

 

1

2

3

4

 

 

 

 

 

 

 

 

 

New acceleration

 

 

1508

1608

1708

1808

 

Cd.10

 

Set the new acceleration time.

 

 

 

time value

 

 

1509

1609

1709

1809

 

 

 

 

 

 

 

New deceleration

 

 

1510

1610

1710

1810

 

Cd.11

 

Set the new deceleration time.

 

 

 

time value

 

 

1511

1611

1711

1811

 

 

 

 

 

 

 

Acceleration/

 

 

 

 

 

 

 

 

 

deceleration time

 

 

 

 

 

 

 

 

 

change during

1

Set "1: Acceleration/deceleration time change

1512

1612

1712

1812

 

Cd.12

 

 

 

speed change,

 

enable".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

enable/disable

 

 

 

 

 

 

 

 

 

selection

 

 

 

 

 

 

Refer to Section 5.7 "List of control data" for details on the setting details.

12 - 46

Page 522
Image 522
Mitsubishi Electronics QD75P, QD75D user manual Setting the acceleration/deceleration time change function, New acceleration