HOME-ESS-HV-5.3K
Empowering Energy Clean And Affordable
24
4.4 Electrical Connection
4.4.1 Overview of the Connection Area
The connection interface on the BDU is shown in the figure.19.
Figure 19 Connection Port Schematic
Table 10 Definition of Figure 19 Alphanumeric Code
Alphanumeric code
Silkscreen marking
Definition
a
＋
DC positive output port
b
－
DC negative output port
c
BAT-OUT
Parallel communication port
d
BAT-IN
Parallel communication port
e
PCS
Inverter communication port
The communication port pins are defined as follows:
Table 11 Definition of Communication Port Pins
PIN#
2
4
5
1
、
3
、
6
、
7
、
8
PCS
GND
CAN4H
CAN4L
NC
BAT-IN
GND
CAN2H
CAN2L
NC
BAT-OUT
GND
CAN2H
CAN2L
NC
Before connecting the cables, use a multimeter to measure cable continuity, short circuits, and verify positive
and negative terminals and cable labelling.
