4 Parameter
38 VFD700 Solar pump inverter user manual
V
T
Initiate
F003
F
T
V
T
Accelerate at
acceleration rate 1
Decelerate at P12.21
Decelerate at P12.21
V
ml
F
V
uuRst
V
uu
a
b
T
V
ml
V
uuRst
V
uu
Figure 4-3 stop mode at power off curve
The way shown above allow the drive put it to regenerate state quickly before DC voltage fall
down again
Code
Name
Range
Min unit
Default
Change
P10.26
MPPT Enable
0~2
1
1
Run&Stop
0: disable the MPPT
1: MPPT mode 1
（
Fixed MPPT mode
）
2: MPPT mode 2
（
Automatic MPPT mode
）
P10.26 = 0: MPPT mode disabled
The drive setup reference is determined by P01.01.
P10.26 = 1: MPPT mode 1
（
Fixed MPPT mode
）
This mode is allow the drive to maintain the DC voltage at the MPPT set up point
(P10.41, default value is 530V, for 220V drive, should decrease this value, 305V for example.
For example:
For 380V drive, P10.41 = 530V
Then if the sun light is high, the DC voltage is bigger than the set up point (530V in this
example), the output frequency will increase to the max set up speed (P01.02)
If the sun light is low, then the output frequency will be determined by the DC voltage.
