Huawei SUN2000-M3 - Page 61

Pin Denitio
n
Function Description Pin Denitio
n
Function Description
7 485A2 RS485
dierential
signal +
Connects to
the RS485
signal port for
controlling the
power meter at
the grid-tied
point.
8 DIN1 Dry contact
for power
grid
scheduling
-
9 485B2 RS485
dierential
signal –
10 DIN2
11 - - - 12 DIN3
13 GND GND - 14 DIN4
15 DIN5 Rapid
shutdown/NS
protection
Used to
connect to the
rapid shutdown
DI signal port
or serve as a
port for the
signal cable of
the NS
protection.
16 GND
Scenarios Where No Signal Cable Is Connected
NO TICE
If no signal cable is required for the SUN2000, use waterproof plugs to block the
wiring holes on the signal cable connector and connect the signal cable connector
to the communications port on the SUN2000 to improve the waterproof
performance of the SUN2000.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 5 Electrical Connections
Issue 11 (2023-01-10) Copyright © Huawei Technologies Co., Ltd. 52