5 Electrical Connection User Manual
No. Silk Screen Description
5 DRM
For external Demand Response Enabling Device
("AU"/ "NZ")
6 ALARM
Used to connect LED indicators or other devices to
indicate whether the inverter is in the faulty state
*Contact SUNGROW to ensure that the Smart Energy Meter model is available locally.
The inverter can provide export control but will require the use of a external smart meter. The
export control functionality has not been tested to AS/NZS 4777.2:2020.
5.13 RS485 Connection
5.13.1 Interface Description
The RS485 communication wiring board of the inverter is shown below.
The following is the description of terminals.
table 5-4 RS485_1 interface (terminal block) description
No. Description
A1 RS485A
OUT，RS485A
differential signal+
A1 RS485A
IN，RS485A
differential signal+
B1 RS485B
OUT，RS485B
differential signal-
B1 RS485B
IN，RS485B
differential signal-
table 5-5 RS485_1 interface
(RJ45）description
No. Description
PIN 1 ~ 2 N/A
PIN 3 RS485B differential signal-
70
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