Hoymiles HY3 Series, User Manual

Page: 21 / 36

6. Electrical Connection
User Manual
MANUAL-HY3-EN-V1.00
19
Step 3

Connect the wires from inverter to a
DC breaker firstly, and then connect
the battery and DC breaker with a
cable of 10-16mm
2 core section.

Besides, if the battery is integrated with
a DC breaker, and its port can
accommodate two inputting wires or
connectors, one can connect the wires
to the battery directly.
High Voltage
Lithium Battery
DC
Breaker
B
M
S
2
B
M
S
1
C
A
N
1
C
A
N
2
M
E
T
E
R
D
R
M
ON
OFF
PV1 PV2
A1+
A1-
B1+
B1-
B2+
B2-
BAT1+
BAT1-
BAT2+
BAT2 -
WIFI
GRID EPS
Step 4

Assemble and connect the BMS
connector (RJ45) to inverter.

The BMS port ’ s PIN definition is shown
in the below.

Connect the other end of BMS cable to
battery, following battery
’ s instructions
and manual.
1 - NULL
2 - G ND
3 - NULL
4 - CANH
5 - CANL
6 - G ND
7 - 485A
8 - 485B