Setting The V/F Pattern - YASKAWA CIMR-G7U Technical Manual



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
E1-01
Input Voltage
V/f pattern
selection
E1-03
V/F Selec-
tion
Max. output
frequency
E1-04
Max
Frequency
Max. voltage
E1-05
Max Voltage
Base
frequency
E1-06
Base
Frequency
Mid. output
frequency
E1-07
Mid
Frequency A
Mid. output
frequency
voltage
E1-08
Mid Voltage
A
Min. output
frequency
E1-09
Min
Frequency
Min. output
frequency
E1-10
voltage
Min Voltage
Description
Set the Drive input voltage in 1 volt.
This setting is used as a reference value
in protection functions.
0 to E: Select from the 15 preset
patterns.
F: Custom user-set patterns (Applicable
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)
Change
Setting Factory
during
Range Setting
V/f
Operation
155.0 to
255.0
230.0V
(240V)
or
No Q
460.0V
310.0 to
*1
510.0
(480V)*1
0 to F F No Q
40.0 to
60.0Hz
No Q
*5
400.0
*2
230.0V
0.0 to
or
No Q
255.0
460.0V*
*1
1*2
0.0 to
60.0Hz
No Q
*5
400.0 *2
0.0 to
3.0Hz
No A
400.0
*2
12.6Vac
0.0 to
or
No A
*1
25.3
255.0
*1 *2
0.0 to
0.5Hz
No Q
*5
400.0
*2
2.3Vac
0.0 to
or
No A
255.0
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
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