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Setting the V/f Pattern
In V/f control method, you can set the Inverter input voltage and the V/f pattern as the need arises.
nRelated Parameters
Name
Param-
eter
Num-
LCD Display
ber
Input voltage setting
E1-01
Input Voltage
V/f pattern selection
E1-03
V/F Selection
Max. output frequency
(FMAX)
E1-04
Max Frequency
Max. voltage (VMAX)
E1-05
Max Voltage
Base frequency (FA)
E1-06
Base Frequency
Mid. output frequency
E1-07
Mid Frequency A
Mid. output frequency
voltage
E1-08
Mid Voltage A
Min. output frequency
(FMIN)
E1-09
Min Frequency
Min. output frequency
voltage
E1-10
Min Voltage
Mid. output frequency 2
E1-11
Mid Frequency B
Mid. output frequency
voltage 2
E1-12
Mid Voltage B
Base voltage
E1-13
Base Voltage
* 1. These are values for a 200-V Class Inverter. Values for a 400-V Class Inverter are double.
* 2. The factory setting will change when the control method is changed. (V/f control factory settings are given.)
* 3. The contents of parameters E1-11 and E1-12 are ignored when set to 0.00.
* 4. E1-13 is set to the same value as E1-05 by autotuning.
* 5. When C6-01 is set to 0, the upper limit of the setting range is 150.0 Hz.
* 6. For (-E) models. Factory setting for base frequency is 50 Hz.
Description
Set the Inverter input voltage in 1 volt. This setting
is used as a reference value in protection func-
tions.
0 to E: Select from the 15 preset V/f patterns.
F:
Custom user-set patterns (Application for
settings E1-04 to E1-10.)
Output voltage (V)
Frequency (Hz)
To set V/f characteristics in a straight line, set the
same values for E1-07 and E1-09. In this case, the
setting for E1-08 will be disregarded.
Always ensure that the four frequencies are set in
the following manner:
E1-04 (FMAX) ≥ E1-06 (FA)
>E1-07 (FB) ≥ E1-09 (FMIN)
Set only to fine-adjust V/f for the output range.
Normally, this setting is not required.
Individual Functions
Control Methods
Change
Setting
Factory
during
Range
Setting
Opera-
V/f
tion
155 to
200 V
255
No
Q
*1
*1
0 to F
F
No
Q
60.0 Hz
40.0 to
(50.00
No
Q
400.0 *5
Hz)*6
0.0 to
200.0 V
255.0
*1
No
Q
*1
*2
60.0 Hz
0.0 to
(50.00
No
Q
400.0
Hz)*6
0.0 to
3.0 Hz
No
A
400.0
*2
15.0 V
0.0 to
*1
No
A
255.0
*2
0.0 to
1.5 Hz
No
Q
400.0
*2
0.0 to
9.0 V
255.0
*1
No
A
*1
*2
0.0 to
0.0 Hz
No
A
400.0
*3
0.0 to
0.0 V
255.0
No
A
*3
*1
0.0 to
0.0 V
255.0
No
A
*4
*1
Open
V/f
Loop
with
Vec-
PG
tor
Q
Q
Q
No
Q
Q
Q
Q
Q
Q
A
A
A
A
Q
Q
A
A
A
A
A
A
A
Q
129
6-
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