User Manual 5 Electrical Connection
Symbol Name
Recommended
cables
Description
CAN
CAN
communication
port
- Reserved
DC IN
24V, 1.25A
DC24V power
supply port
0.75~1.5mm
2
outdoor
anti-ultraviolet
wire
If the current is ≤1.25A, the
switch mode power supply at
this port requires reinforced
insulation.
AC IN
100–277V,
0.48A
AC power supply
port
0.75~1.5mm
2
outdoor
anti-ultraviolet
wire
Connecting 100~277Vac
(50/60Hz), current≤0.48A
Ground hole
1~1.5mm
2
outdoor
anti-ultraviolet
wire
Connecting protective
grounding cable
L1, L2, L3
MPLC
communication
interface
0.5~0.75mm
2
,
cable withstand
voltage: cable
grounding
working voltage
≥ 1000 V
Can be connected to string
inverters equipped with PLC
communication function
AC power supply port and MPLC communication interface
High voltages may be present on the AC power supply port “AC IN 100–277V, 0.48A” and
MPLC communication port “L1, L2, L3". Therefore, before cable connection, ensure that the
ports are free of voltage and the grounding cable is reliably connected.
Digital input/output ports
Digital input/output ports (DI and DO1~DO4) are configured to collect node data and control
node communication.
RS485 communication ports
For the RS485 communication ports (A1B1~A7B7), the communication distance should be
no more than 1,000m.
21
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