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5
5. Basic parameters
Before you operate the inverter, the parameters that you must first program are the basic parameters.
5.1 Setting acceleration/deceleration time
: Automatic acceleration/deceleration
: Acceleration time 1
: Deceleration time 1
• Function
1) For acceleration time , program the time that it takes for the inverter output frequency to go from
0Hz to maximum frequency .
2) For deceleration time , program the time that it takes for the inverter output frequency to go from
maximum frequency to 0Hz.
5.1.1 Automatic acceleration/deceleration
This automatically adjusts acceleration and deceleration time in line with load size.
* Automatically adjusts acceleration and deceleration time within the inverter rated current in a range that
goes from 1/8 to infinity of programmed and time. It goes to the optimum value taking a mar-
ginal allowance into consideration.
* Automatically adjusts to the shortest time within 120% of the inverter rated current. It is a value that is ob-
tained attaching importance to acceleration/deceleration time.
Acceleration time
Deceleration time
When load is small
Acceleration/deceleration time
→ increase
When load is large
Acceleration/deceleration time
→ decrease
Output
fre
q
uenc
y
(
Hz
)
Time (s)
Acceleration time
Deceleration time
Time (s)
Output
frequency (Hz)
Set (automatic acceleration/deceleration) to or .