99
The output frequency increases or decreases in a straight line. 4 kinds of acceleration/deceleration time can be
selected through multi-function digital input terminals (04-00
～
04-04).
1: S curve acceleration and deceleration A
The output frequency increases or decreases according to the S curve. The S curve is used in places that require
gentle start or stop, such as elevators and conveyor belts. Parameters 07-12 and 07-13 respectively define the
time proportion of the start and end segments of the S curve acceleration and deceleration
2: S curve acceleration and deceleration B
In this S curve acceleration/deceleration B, the rated frequency of the motor is always the inflection point of the S
curve. As shown in Figure 5-14. It is generally used in high-speed areas above the rated frequency that require
rapid acceleration and deceleration.
When the set frequency is above the rated frequency, the acceleration/deceleration time is:
Among them, f is the set frequency, fb is the rated frequency of the motor, and T is the time from 0 frequency
acceleration to the rated frequency fb.
07-12
S curve start time ratio
Factory setting
30.0%
Setting range 0.0%
～
(100.0%-07-13)
07-13
S curve end time ratio
Factory setting
30.0%
Setting range 0.0%
～
(100.0%-07-12)
Parameters 07-12 and 07-13 respectively define the start and end time ratios of the acceleration and deceleration
A of the S curve. The two parameters must meet: 07-12 + 07-13 ≤ 100.0%.
In Figure 5-13, t1 is the parameter defined by parameter 07-12. During this period of time, the slope of the output
frequency change gradually increases.t2 is the time defined by parameter 07-13. During this time period, the
slope of the output frequency change gradually changes to 0.
During the time between t1 and t2, the slope of the output frequency change is fixed, that is, linear acceleration
and deceleration are performed in this interval.
Output frequency
Hz
t1
t2
Time
Set frequency
f
t1
t2
Figure 5-13 S curve acceleration and deceleration A
Summary of Contents for S3100A Series
Page 1: ...S3100Aseries inverter General Open loop Vector Control IM User manual User Manual ...
Page 24: ...20 Size 5 Unit mm S3100A 4T45G 55P 4T110G Size 6 Unit mm S3100A 4T110G 132P 4T160G 185P ...
Page 25: ...21 Size 7 Unit mm S3100A 4T185G 200P 4T220G Size 8 Unit mm S3100A 4T220G 250P 4T315G ...
Page 26: ...22 Size 9 Unit mm S3100A 4T315G 355P 4T400G 450P Size 10 Unit mm S3100A 4T450G 500P 4T500G ...
