Huawei SUN2000-M3 User Manual page 61

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual
Pin Definitio Function
n
7 485A2 RS485
differential
signal +
9 485B2 RS485
differential
signal –
11 - -
13 GND GND
15 DIN5 Rapid
shutdown/NS
protection
Scenarios Where No Signal Cable Is Connected
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.
Issue 11 (2023-01-10)
Description
Connects to
the RS485
signal port for
controlling the
power meter at
the grid-tied
point.
-
-
Used to
connect to the
rapid shutdown
DI signal port
or serve as a
port for the
signal cable of
the NS
protection.
NO TICE
Copyright © Huawei Technologies Co., Ltd.
Pin Definitio Function
n
8 DIN1 Dry contact
for power
grid
scheduling
10 DIN2
12 DIN3
14 DIN4
16 GND
5 Electrical Connections
Description
-
52