4 Parameter
34 VFD700 Solar pump inverter user manual
0: V/F control
1: Open loop vector control1
2
：
Open loop vector control 2
Note: To use open loop vector control mode 1 or 2, you need to set up motor parameters
correctly (nominal voltage, current, pole pairs, rated speed) and finish auto-tune.
Code
Name
Range
Min unit
Default
Change
P00.21 (P10.10)
Switch frequency
1kHz
～
15kHz
1KHz
By model
Run&Stop
Switch frequency can affect the motor noise and drive power loss, higher switch frequency,
lower motor noise but bigger IGBT power loss.
Code
Name
Range
Min unit
Default
Change
P00.22 (P06.08)
Voltage boost
level
0.0%
～
30.0%
0.1%
by mode
Run&Stop
Figure 4-1 Voltage boost
V
e
: motor rated voltage
V
b
: Boost voltage=Ve
×
P00.22
f
Z
: boost close frequency (P06.09)
f
b
: rated frequency
Code
Name
Range
Min unit
Default
Change
P00.23 (P06.01)
V/F mode setup
0
～
3
1
0
Stop Only
Different V/F characteristic is defined by P00.23 to meet the demanding from different load.
There are three kinds of fixed curve and one user programmed line
When P00.23 (P06.01) is 0, user can define the different fold lines by the setting of P06.02
～
P06.07, add (V1, F1)
、
(V2, F2)
、
(V3, F3) three points to define the V/F lines mode.
The default V/F is a straight line, as the line0 in Figure 4-2.
When P00.23 (P06.01) is set to 1, it is a 2.0 law ramp, curve1 in figure 4-2.
Output voltage
V
b
f
b
f
z
Output frequency
V
e