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Acceleration and Deceleration Characteristics
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Acceleration and Deceleration Characteristics
Setting Acceleration and Deceleration Times
Acceleration time indicates the time to increase the output frequency from 0% to 100% of the maximum out-
put frequency (E1-04). Deceleration time indicates the time to decrease the output frequency from 100% to
0% of (E1-04). The factory setting of the acceleration time is C1-01 and the factory setting of the deceleration
time is C1-02.
Related Parameters
Switching Acceleration and Deceleration Time Using Multi-Function Input Terminal Com-
mands
Using the SYSDRIVE PV, you can set two acceleration times and two deceleration times. When the multi-
function input terminals (H1-oo) are set to 7 (acceleration/deceleration time selection 1), you can switch the
acceleration/deceleration time even during operation.
The following table shows the acceleration/deceleration time switching combinations.
Param-
eter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Access
Level
LCD Display
C1-01
Acceleration time 1
Set the acceleration time to accelerate from 0 to the maxi-
mum output frequency, in 1-second units.
0.0 to
6000.0
10.0 s
Yes
Q
Accel Time 1
C1-02
Deceleration time 1
Set the deceleration time in seconds for the output fre-
quency to fall from 100% to 0%.
Yes
Q
Decel Time 1
C1-03
Acceleration time 2
Acceleration time when multi-function input "Accelera-
tion/deceleration time selection 1" is ON.
Yes
A
Accel Time 2
C1-04
Deceleration time 2
Deceleration time when multi-function input "Accelera-
tion/deceleration time selection 1" is ON.
Yes
A
Decel Time 2
C1-11
Acceleration/deceleration
time switching frequency
Set the frequency at which acceleration/deceleration time
switches automatically.
Less than set frequency: Acceleration/deceleration time 2
Set frequency or above: Acceleration/deceleration time 1
Multi-function inputs "Acceleration/deceleration time
selection 1" and "Acceleration/deceleration time selection
2" are given priority.
0.0 to
120.0
0.0 Hz
No
A
Acc.Dec SW Freq
C2-01
S-curve characteristic time at
acceleration start
Set the S-curve characteristic time for each part in sec-
onds.
When you set the S-curve characteristic time, the start time
and end time S-curve characteristic time's acceleration
time is lengthened by 1/2 only.
The S-curve characteristic time at start and end of deceler-
ation is fixed to 0.2 sec. and can not be changed.
0.00 to
2.50
0.20 s
No
A
SCrv Acc@Start
C2-02
S-curve characteristic time at
acceleration end
0.00 to
2.50
0.20 s
No
A
SCrv Dec@ End
Acceleration/Deceleration Time
Selection 1 Terminal
Acceleration Time
Deceleration Time
OFF
C1-01
C1-02
ON
C1-03
C1-04
Run
command
Output frequency
Time
C2-01
C2-02
ON
OFF