Huawei SUN2000 Series User Manual page 50

SUN2000-(3KTL-10KTL)-M0
User Manual
Pin Definiti Function
on
1 485A1-1 RS485A,
RS485
differential
signal+
RS485B,
3 485B1-1
RS485
differential
signal–
5 PE Shield layer
grounding
RS485A,
7 485A2
RS485
differential
signal+
9 485B2 RS485B,
RS485
differential
signal–
11 EN Enable signal
13 GND GND
15 DIN5 Rapid shutdown
switch
Communication Networking

Issue 04 (2019-10-18)
Description
Used to
cascadeinverters
or connect to the
RS485 signal
port on the
SmartLogger
N/A
Used to connect
to the RS485
signal port on
devices such as
the Smart Power
Sensor and the
energy storage
device
Reserved. Used
to connect to the
enable signal
port on an
energy storage
device
N/A
Reserved.
 When the RS485 communications cables of devices such as the Smart Power Sensor and the energy
storage device are both connected to the inverter, 485A2 (pin 7), 485B2 (pin 9), and PE (pin 5) are
shared.
 When the enable signal cable of the energy storage device and the signal cable of the rapid shutdown
switch are both connected to the inverter, GND (pin 13) is shared.
Smart Dongle Networking Scenario
Copyright © Huawei Technologies Co., Ltd.
Pin Definitio Function
n
2 485A1-2 RS485A,
RS485
differential
signal+
RS485B,
4 485B1-2
RS485
differential
signal–
6 PE Shield layer
grounding
Power grid
8 DIN1
scheduling
dry contact
10 DIN2
12 DIN3
14 DIN4
16 GND
5 Electrical Connections
Description
Used to
cascadeinverte
rs or connect
to the RS485
signal port on
the
SmartLogger
N/A
N/A
44