Installation Manual
14
4.2
Main Circuit Diagram
PV array converts the solar energy into DC energy and then sends it to the inverter DC
input side after upstream combining. The DC energy is converted to AC energy through the
inverter. Main circuit diagram inside the inverter is shown in the figure below by using 16
inputs as the example.
D
C
1+
D
C
1-
D
C
8+
D
C
8-
D
C
EM
C
filt
er
A
C
filt
er
A
C
EM
C
filt
er
D
C
c
irc
uit
b
re
ak
er
M
o
d
ule
A
C
c
o
nt
ac
to
r
A
C
c
irc
uit
b
re
ak
er
D
C
S
P
D
A
C
S
P
D
L1
L2
L3
D
C
1+
D
C
1-
D
C
8+
D
C
8-
D
C
EM
C
filt
er
A
C
filt
er
A
C
EM
C
filt
er
D
C
c
irc
uit
b
re
ak
er
M
o
d
ule
A
C
c
o
nt
ac
to
r
A
C
c
irc
uit
b
re
ak
er
D
C
S
P
D
N
1（
Le
ft
sid
e ）
N
2（
R
ig
ht
sid
e ）
