4-23
(3) Free V/f setting
The free V/f setting sets optional V/f characteristics by setting the voltage and frequency in seven
parts.(b100-b113)
The setting of free V/f setting operates always to be
7
6
5
4
3
2
1
≤
≤
≤
≤
≤
≤
.
Please set first free V/f setting 7 because the initial value is all 0Hz.
When the free V/f setting is valid, the function of torque boost(A041/A241), base frequency(A003/A203),
maximum frequency(A004/A204) is invalid. (Free V/f frequency7 is treated as maximum frequency.)
Set item
Function code
Data
Contents
Free V/f frequency7
b112
0.- 400.
Free V/f frequency6
b110
0.- Free V/f frequency7
Free V/f frequency5
b108
0.- Free V/f frequency6
Free V/f frequency4
b106
0.- Free V/f frequency5
Free V/f frequency3
b104
0.- Free V/f frequency4
Free V/f frequency2
b102
0.- Free V/f frequency3
Free V/f frequency1
b100
0.- Free V/f frequency2
Unit : Hz
Free V/f voltage7
b113
Free V/f voltage6
b111
Free V/f voltage5
b109
Free V/f voltage4
b107
Free V/f voltage3
b105
Free V/f voltage2
b103
Free V/f voltage1
b101
0.0 - 800.0
Unit : V
(Note 1)
(Example)
(Note 1) Even if you set 800V for free V/f voltage1-7, output of inverter can’t be more than the input voltage or
the AVR setting voltage.
Chapter4 Explanation of function
0
f6
f7
V6
V7
Voltage to output or AVR
voltage
Output voltage(V)
Output frequency(Hz)
Output frequency (Hz)
f1
f2
f3
f4
f5
f6
f7
0
V2, V3
V1
V5
V6
V7
V4
Output voltage (V)