12 CONTROL SUB FUNCTIONS

12.7.7 Acceleration/deceleration processing function

MELSEC-Q

The "acceleration/deceleration processing function" adjusts the acceleration/deceleration when each control is executed.

Adjusting the acceleration/deceleration processing to match the control enables more precise control to be carried out.

There are two acceleration/deceleration adjustment items that can be set: "Acceleration/deceleration time 0 to 3", and "acceleration/deceleration method setting".

The details shown below explain about the "acceleration/deceleration processing function".

[1]"Acceleration/deceleration time 0 to 3" control details and setting

[2]"Acceleration/deceleration method setting" control details and setting

[1]"Acceleration/deceleration time 0 to 3" control details and setting

In the QD75, four types each of acceleration time and deceleration time can be set. By using separate acceleration/deceleration times, control can be carried out with different acceleration/deceleration times for positioning control, JOG operation, OPR, etc.

Set the required values for the acceleration/deceleration time in the parameters shown in the following table, and write them to the QD75.

The set details are validated when written to the QD75.

 

 

 

 

Setting item

Setting

Setting details

Factory-set

 

 

 

 

value

initial value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.9

 

Acceleration time 0

 

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.25

 

Acceleration time 1

 

Set the acceleration time at a value within the range

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

of 1 to 8388608 ms.

 

 

Pr.26

 

Acceleration time 2

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.27

 

Acceleration time 3

 

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.10

 

Deceleration time 0

 

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.28

 

Deceleration time 1

 

Set the deceleration time at a value within the range

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

of 1 to 8388608 ms.

 

 

Pr.29

 

Deceleration time 2

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.30

 

Deceleration time 3

 

 

1000

 

 

 

 

 

 

 

 

Refer to Section 5.2 "List of parameters" for setting details.

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Mitsubishi Electronics QD75P, QD75D user manual Acceleration/deceleration processing function