Mitsubishi A1SD75M3 User Manual page 568

12 CONTROL AUXILIARY FUNCTIONS
Setting item
Pr.8 Acceleration time 0
Pr.26 Acceleration time 1
Pr.27 Acceleration time 2
Pr.28
Acceleration time 3
Pr.9
Deceleration time 0
Pr.29
Deceleration time 1
Pr.30
Deceleration time 2
Pr.31 Deceleration time 3
* Refer to section "5.2 List of parameters" for setting details.
Fig. 12.43 Automatic trapezoidal acceleration/deceleration processing method
(2) "Acceleration/deceleration time 0 to 3" control details and setting
In the AD75, 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, zero point returns, etc.
Set the required values for the acceleration/deceleration time in the parameters
shown in the following table, and write them to the AD75.
The set details are validated when written to the AD75.
Setting
value
(3) "Acceleration/deceleration method setting" control details and
setting
In the "acceleration/deceleration method setting", the acceleration/deceleration
processing method is selected and set. The set acceleration/deceleration
processing is applied to all acceleration/deceleration.
The two types of "acceleration/deceleration method setting" are shown below.
(a) Automatic trapezoidal acceleration/deceleration processing
method
This is a method in which linear acceleration/deceleration is carried out
based on the acceleration time, deceleration time, and speed limit value set
by the user.
Velocity
Setting details
Set the acceleration time within the setting value
range set in " Pr.25 Size selection for
acceleration/deceler-ation time".
Set the deceleration time within the setting value
range set in " Pr.25 Size selection for
acceleration/deceler-ation time".
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Time
MELSEC-A
Factory-set
initial value
1000
1000
1000
1000
1000
1000
1000
1000