Huawei SUN3KTL-L1 User Manual

Table 5-3 COM port denition
No. Label Denition Single SUN2000
Scenario
SUN2000 Cascading
Scenario
1 485B1 RS485B, RS485
dierential
signal–
- Used for connecting to
the solar inverters.
2 485A1 RS485A, RS485
dierential
signal+
3 485B2 RS485B, RS485
dierential
signal–
Used for connecting
to the RS485 signal
ports of the battery
and smart power
sensor. When both
battery and power
meter are
congured, they
need be crimped to
the 485B2 and
485A2 ports.
Used for connecting to
the RS485 signal ports
of the battery and
smart power sensor.
When both battery
and smart power
sensor are congured,
they need be crimped
to the 485B2 and
485A2 ports.
4 485A2 RS485A, RS485
dierential
signal+
5 GND GND of the
enable
signal/12V/DI1/
DI2
Used for connecting to GND of the enable
signal/12V/DI1/DI2.
6 EN+ Enable signal
+/12V+
Used for connecting to the enable signal of
the battery and the 12V positive signal.
7 DI1 Digital input
signal 1+
Used for connecting to the DI1 positive
signal. It can be used for connecting to the
DRM0 scheduling signal or reserved for the
rapid shutdown signal.
8 DI2 Digital input
signal 2+
Used for connecting to the DI2 positive
signal. It can be reserved for the feedback
signal of the Backup device.
NO TE
For details about how to connect signal cables, see the SUN2000L-(2KTL-5KTL) and
SUN2000-(2KTL-6KTL)-L1 Battery and Smart Power Sensor Quick Guide
. You can also
scan the QR code to obtain the document.
SUN2000-(2KTL-6KTL)-L1
User Manual 5 Electrical Connection
Issue 04 (2021-04-01) Copyright © Huawei Technologies Co., Ltd. 51

Huawei SUN3KTL-L1 Specifications

General

Brand	Huawei
Model	SUN3KTL-L1
Category	Inverter
Language	English