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12 CONTROL AUXILIARY FUNCTIONS
(2) "Acceleration/deceleration time 0 to 3" control details and setting
In the D75P2, 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 D75P2.
The set details are validated when written to the D75P2.
Setting item
Setting
value
Setting details
Factory-set
initial value
Pr.8
Acceleration time 0
Set the acceleration time within the setting value range
set in "
Pr.25 Size selection for acceleration/deceler-
ation time".
1000
Pr.26
Acceleration time 1
1000
Pr.27
Acceleration time 2
1000
Pr.28
Acceleration time 3
1000
Pr.9
Deceleration time 0
Set the deceleration time within the setting value range
set in "
Pr.25 Size selection for acceleration/deceler-
ation time".
1000
Pr.29
Deceleration time 1
1000
Pr.30
Deceleration time 2
1000
Pr.31
Deceleration time 3
1000
* Refer to section "5.2 List of parameters" for setting details.
(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.
V
elocity
Time
Fig. 12.42 Automatic trapezoidal acceleration/deceleration processing method