Omron SYSDRIVE 3G3JV

5-14
5-6 Setting the Acceleration/Deceleration Time
The following description provides information on parameters related to acceleration
and deceleration time settings.
Trapezoidal and S-shape acceleration and deceleration are available. Using the S-
shape characteristic function for acceleration and deceleration can reduce shock to the
machinery when stopping or starting.
H Setting the Acceleration/Deceleration Time (n16 through n19)
• Two acceleration times and two deceleration times can be set.
• The acceleration time is the time required to go from 0% to 100% of the maximum frequency and the
deceleration time is the time required to go from 100% to 0% of the maximum frequency. The actual
acceleration or deceleration time is obtained from the following formula.
Acceleration/Deceleration time = (Acceleration/Deceleration time set value)
× (Frequency reference value) ÷ (Max. frequency)
Acceleration time 2 and deceleration time 2 are enabled by setting 11 for acceleration/deceleration time
selection in any of the n36 through n39 parameters for multi-function input.
Deceleration time 2 is also enabled by emergency-stop settings 19, 20, 21, and 22 in any of the n36,
n37, n38, and n39 parameters for multi-function input with n04 for interruption mode selection set to 0
(i.e., deceleration stop).
n16
Acceleration time 1 Changes during
operation
Yes
Setting
range
0.0 to 999 (s) Unit of
setting
0.1 s
(see note)
Default setting 10.0
n17
Deceleration Time 1 Changes during
operation
Yes
Setting
range
0.0 to 999 (s) Unit of
setting
0.1 s
(see note)
Default setting 10.0
n18
Acceleration Time 2 Changes during
operation
Yes
Setting
range
0.0 to 999 (s) Unit of
setting
0.1 s
(see note)
Default setting 10.0
n19
Deceleration Time 2 Changes during
operation
Yes
Unit of
setting
0.0 to 999 (s) Unit of
setting
0.1 s
(see note)
Default setting 10.0
Note Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz and 1-Hz increments if
the frequency is 100 Hz or over.
Basic Operation
Chapter 5