3 Installation
MY Series (10kVA-40kVA) UPS
User Manual
40
+
-
EXTERNAL BATTERY CABINET
N
+
-
EXTERNAL BATTERY CABINET
N
M
a
in
s
in
p
u
t U
M
a
in
s
in
p
u
t V
M
a
in
s
in
p
u
t W
M
a
in
s
in
p
u
t N
B
a
tte
ry
-
B
a
tte
ry
+
B
a
tte
ry
N
B
y
p
a
s
s
N
B
y
p
a
s
s
U
B
y
p
a
s
s
V
B
y
p
a
s
s
W
O
u
tp
u
t U
O
u
tp
u
t V
O
u
tp
u
t W
O
u
tp
u
t N
B
a
tte
ry
-
B
a
tte
ry
+
B
a
tte
ry
N
UPS1
UPS2
DC Breaker 1
DC Breaker 2
G
ro
u
n
d
in
g
Figure3-25
10/10S/15/15S/20/20S wiring diagram of 33 mode parallel system
+
-
EXTERNAL BATTERY CABINET
N
+
-
EXTERNAL BATTERY CABINET
N
M
a
in
s
in
p
u
t U
M
a
in
s
in
p
u
t V
M
a
in
s
in
p
u
t W
B
a
tte
ry
-
B
a
tte
ry
+
B
a
tte
ry
N
B
y
p
a
s
s
L
O
u
tp
u
t L
O
u
tp
u
t N
B
a
tte
ry
-
B
a
tte
ry
+
B
a
tte
ry
N
UPS1
UPS2
DC Breaker 1
DC Breaker 2
In
p
u
t N
G
ro
u
n
d
in
g
Figure3-26
10/10S/15/15S/20/20S wiring diagram of 31 mode parallel system