6
-74
Setting the V/f Pattern
Inverter input voltage and the V/f pattern can be set as the need arises.
Related Parameters
* 1. These are values for a 200 V Class Inverter. Values for a 400 V Class Inverter are double.
* 2. The contents of parameters E1-11 and E1-12 are ignored when set to 0.00.
* 3. E1-13 is set to the same value as E1-05 by autotuning.
Setting Inverter Input Voltage
Set the Inverter input voltage correctly in E1-01 to match the power supply voltage. This set value will be the
standard value for the protection function and similar functions (overvoltage level, stall trip).
Setting V/f Pattern
Set the V/f pattern in E1-03. There are two methods of setting the V/f pattern: Select one of the 14 pattern
types (set value: 0 to D) that have been set beforehand or set a user-defined V/f pattern (set value: F).
The factory setting for E1-03 is F. The contents of E1-03 when factory-set to F are the same as when E1-03 is
set to 0.
Param-
eter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Access
Level
LCD Display
E1-01
Input voltage setting
Set the Inverter input voltage. This setting is used as a ref-
erence value in protection functions.
155 to
255
*1
200 V
*1
No
Q
Input Voltage
E1-03
V/f pattern selection
0 to D: Select from the 14 preset V/f patterns.
F:
Custom user-set patterns (Application for settings
E1-04 to E1-10.)
0 to F
F
No
Q
V/f Selection
E1-04
Max. output frequency
(FMAX)
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 fol-
lowing manner:
E1-04 (FMAX)
≥
E1-06 (FA)
>
E1-07 (FB)
≥
E1-09 (FMIN)
0.0 to
120.0
50.0 Hz
No
Q
Max Frequency
E1-05
Max. voltage (VMAX)
0.0 to
255.0
*1
200.0 V
*1
No
Q
Max voltage
E1-06
Base frequency (FA)
0.0 to
120.0
50.0 Hz
No
Q
Base frequency
E1-07
Mid. output frequency
0.0 to
255.0
*1
2.5 Hz
No
A
Mid Frequency A
E1-08
Mid. output frequency
voltage
0.0 to
120.0
15.0 V
*1
No
A
Mid Voltage A
E1-09
Min. output frequency
(FMIN)
0.0 to
120.0
1.2 Hz
No
Q
Min Frequency
E1-10
Min. output frequency
voltage
0.0 to
255.0
*1
9.0 V
*1
No
A
Min Voltage
E1-11
Mid. output frequency 2
Set only to fine-adjust V/f for the output range. Normally,
this setting is not required.
0.0 to
120.0
0.0 Hz
*2
No
A
Mid Frequency B
E1-12
Mid. output frequency
voltage 2
0.0 to
255.0
*1
0.0 V
*2
No
A
Mid Voltage B
E1-13
Base voltage
0.0 to
255.0
*1
0.0 V
*2
No
A
Base Voltage
Output voltage (V)
Frequency (Hz)
