Acceleration/Deceleration Processing Function - Mitsubishi Electric A1SD75P1-S3 User Manual

12 CONTROL AUXILIARY FUNCTIONS

12.6.7 Acceleration/deceleration processing function

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 three acceleration/deceleration adjustment items that can be set:
"Acceleration/deceleration time size selection", "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 size selection" control details and
Setting item
Size selection for
Pr.25 acceleration/dece
leration time
* Refer to section "5.2 List of parameters" for setting details.
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(1) "Acceleration/deceleration time size selection" control details and setting
(2) "Acceleration/deceleration time 0 to 3" control details and setting
(3) "Acceleration/deceleration method setting" control details and setting
setting
In the "acceleration/deceleration time size selection", the sizes (setting ranges) of
the acceleration time, deceleration time, and sudden stop deceleration time are
selected and set.
•
Acceleration time: The time from speed 0 until the " Pr.7 Speed limit value" is
reached.
•
Deceleration time: The time from the " Pr.7 Speed limit value" until speed 0
is reached.
•
Sudden stop deceleration time: The time from " Pr.7 Speed limit value" until
speed 0 is reached.
Set the required values for the acceleration/deceleration time size in the
parameters shown in the following table, and write them to the AD75.
The set details are validated at the rising edge (OFF
signal (Y1D).
Setting
value
Select the acceleration/deceleration time size (setting
range) from the following two sizes, and set the
appropriate value.
0: 1 to 65535ms
1: 1 to 8388608ms
Setting details
12 - 78
MELSEC-A
ON) of the PLC READY
Factory-set
initial value
0