6-16
Acceleration and Deceleration Characteristics
This section explains the acceleration and deceleration characteristics of the Inverter.
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 accel./decel. times 1 are used with the factory setting, the accel./decel. times 2 can be
selected using a multifunction input.
Related Parameters
Switching Acceleration and Deceleration Time Using Multi-Function Input Terminal
Commands
Two different acceleration times and deceleration times can be set. When one multi-function input terminal
(H1-) is set to 7 (acceleration/deceleration time selection 1), you can switch the acceleration/deceleration
time even during operation by changing the ON/OFF status of this terminal.
The following table shows the acceleration/deceleration time switching combinations.
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Access
Level
C1-01 Acceleration time 1
Sets the acceleration time to accelerate from 0 to the maxi-
mum output frequency.
0.0 to
6000.0
10.0 s
Yes Q
C1-02 Deceleration time 1
Sets the deceleration time in seconds for the output fre-
quency to fall from 100% to 0%.
Yes Q
C1-03 Acceleration time 2
Sets the acceleration time when multi-function input
"Acceleration/deceleration time selection 1" is ON.
Yes A
C1-04 Deceleration time 2
Sets the deceleration time when multi-function input
"Acceleration/deceleration time selection 1" is ON.
Yes A
C1-11
Acceleration/deceleration time
switching frequency
Sets 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 input "Acceleration/deceleration time
selection 1" is given priority.
0.0 to
200.0
0.0 Hz No A
C2-01
S-curve characteristic time at
acceleration start
Sets 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.
0.00 to
2.50
0.20 s No A
C2-02
S-curve characteristic time at
acceleration end
0.00 to
2.50
0.20 s No A
Acceleration/Deceleration Time
Selection 1 Terminal
Acceleration Time Deceleration Time
OFF C1-01 C1-02
ON C1-03 C1-04
Time
OFF
ON
Output frequency
C2-02
C2-01
Run
command
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