Description of Function Codes
MD380 User Manual
- 180 -
When the set frequency is higher than the rated frequency, the acceleration/
deceleration time is:
2
5
9
b
f
T
f
t
4
(
u(
)
9
)u
In the formula,
is the set frequency,
b
f
is the rated motor frequency and
T
is the
acceleration time from 0 Hz to
b
f
.
)unction Code Parameter Name Setting Range Default
)6-08
Time proportion of S-curve
start segment
0.0% to (100.0% – )6-09) 30.0%
)6-09
Ti
me proportion of S-curve
end segment
0.0% to (100.0% – )6-08) 30.0%
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output frequency change gradually decreases to 0. Within the time between t1 and t2,
the slope of the output frequency change remains unchanged, that is, linear acceleration/
deceleration.
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Output
frequency (Hz)
Set frequency (f)
Time (t)
t1 t2 t2t1
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Output
frequency (Hz)
Set frequency (f)
Rated frequency (fb)
T
Time (t)
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