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Setting the V/f Pattern
In V/f control method, you can set the Drive input voltage and the V/f pattern as the need arises.
Related Parameters
Name
Parameter
Number
Display
Input volt-
age setting
Set the Drive input voltage in 1 volt.
E1-01
This setting is used as a reference value
in protection functions.
Input Voltage
V/f pattern
0 to E: Select from the 15 preset
selection
E1-03
F: Custom user-set patterns (Applicable
V/F Selec-
for settings E1-04 to E1-10.)
tion
Max. output
frequency
E1-04
Max
Frequency
Max. voltage
E1-05
Max Voltage
Base
Output voltage (V)
frequency
E1-06
Base
Frequency
Mid. output
frequency
E1-07
Mid
Frequency A
To set V/f characteristics in a straight
line, set the same values for E1-07 and
Mid. output
E1-09. In this case, the setting for E1-08
frequency
will be disregarded.
voltage
E1-08
Always ensure that the four frequencies
Mid Voltage
are set in the following manner:
E1-04 (FMAX) ≥ E1-06 (FA) > E1-07
A
(FB) ≥ E1-09 (FMIN)
Min. output
frequency
E1-09
Min
Frequency
Min. output
frequency
E1-10
voltage
Min Voltage
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Setting
Description
Range
155.0 to
(240V)
310.0 to
(480V)*1
patterns.
0 to F
40.0 to
400.0
0.0 to
255.0
0.0 to
400.0
0.0 to
Frequency (Hz)
400.0
0.0 to
255.0
0.0 to
400.0
0.0 to
255.0
Change
Factory
during
Setting
V/f
Operation
255.0
230.0V
or
No
Q
460.0V
*1
510.0
F
No
Q
60.0Hz
No
Q
*5
*2
230.0V
or
No
Q
460.0V*
*1
1*2
60.0Hz
No
Q
*5
*2
3.0Hz
No
A
*2
12.6Vac
or
No
A
*1
25.3
*1 *2
0.5Hz
No
Q
*5
*2
2.3Vac
or
No
A
4.6Vac
*1
*1 *2
Individual Functions
Control Methods
Open
Open
V/f
Loop
Flux
Loop
with
Vector
Vector
Vector
PG
1
2
Q
Q
Q
Q
Q
No
No
No
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
A
A
No
No
A
A
No
No
Q
Q
A
Q
A
A
No
No
6-
111
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