SUN2000-(5KTL, 6KTL)-M0
User Manual
5 Electrical Connections
Issue 03 (2019-07-19)
Copyright © Huawei Technologies Co., Ltd.
42
When routing the signal cable, ensure that it is separate from the power cable and away
from interfering sources to prevent communication from being affected.
The protection layer of the cable is in the connector. Cut off surplus core wires from the
protection layer. Ensure that the core wires are completely inserted into the cable holes,
and that the cable is securely connected.
Figure 5-17
Signal definitions
Pin Definiti
on
Function
Description
Pin Definiti
on
Function
Description
1
485A1-1
RS485A,
RS485
differential
Used to
cascadeinverters
or connect to
the RS485
signal port on
the
SmartLogger
2
485A1-2
RS485A,
RS485
differential
Used to
cascadeinvert
ers or connect
to the RS485
signal port on
the
SmartLogger
3
485B1-1
RS485B,
RS485
differential
signal–
4
485B1-2
RS485B,
RS485
differential
signal–
5
PE
Shield layer
grounding
N/A
6
PE
Shield layer
grounding
N/A
7
485A2
RS485A,
RS485
differential
Used to connect
to the RS485
signal port on
devices such as
the Smart Power
Sensor and the
energy storage
device
8
DIN1
Power grid
scheduling
dry contact
N/A
9
485B2
RS485B,
RS485
differential
signal–
10
DIN2
11
EN
Enable signal
Reserved. Used
to connect to the
enable signal
port on an
energy storage
device
12
DIN3