9
2.3
Circuit Diagram
The MPPT is utilized for DC input to ensure the maximum power from the PV array at
different PV input conditions. The inversion circuit converts the DC power into AC power
and feeds the AC power into the utility grid through the AC terminal. The protection
circuit is equipped to ensure the safe operation of the device and personal safety.
The following Figure shows the main circuit of the inverter.
F
Fiig
gu
urre
e 2
2--3
3 Circuit diagram
2.4
Function Description
The inverter is equipped with the following functions:
C
Co
on
nvve
errssiio
on
n ffu
un
nc
cttiio
on
n
The inverter converts the DC current into grid-compatible AC power and provide it to
local loads or export it into the grid.
D
Da
atta
a sstto
orra
ag
ge
e
The inverter records running information, error records, etc.
P
Pa
arra
am
me
ette
err c
co
on
nffiig
gu
urra
attiio
on
n
The inverter provides various settable parameters. Users can set parameters via the
App to meet the requirements.
C
Co
om
mm
mu
un
niic
ca
attiio
on
n iin
ntte
errffa
ac
ce
e
The inverter is designed with standard RS485 communication interfaces.
The standard RS485 communication interfaces are used to establish communication
connection
with
monitoring
devices
and
upload
monitoring
data
by
using
communication cables.
After communication connection is established, users can view inverter information or
set inverter parameters in a certain remote online portal.
P
Prro
otte
ec
cttiio
on
n F
Fu
un
nc
cttiio
on
n
The protective functions are integrated in the inverter, including anti-island protection,
LVRT/HVRT, DC reversed polarity protection, AC short circuit protection, leakage current
protection, DC overvoltage/overcurrent protection, etc.
P
PIID
D rre
ec
co
ovve
erryy ffu
un
nc
cttiio
on
n
The inverter injects compensatinge voltage to PV strings to recovery PV string
performance when no power is generated.
User Manual
