Sungrow SG125HX, User Manual

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table 2-1 State description of the LED indicator
L LE ED D c co ollo orr S Stta atte e D De effiin niittiio on n
Blue
On
The device is connected to the grid and operating
normally.
Fast blink
(Period: 0.2s)
The Bluetooth communication is connected and
there is data communication.
No system fault occurs.
Slow blink
(Period: 2s)
The device is in standby or startup state (not
feeding power into the grid).
Red
On
A fault occurs and the device cannot connect to the
grid.
Twinkling
The Bluetooth communication is connected and
there is data communication.
System fault occurs.
Gray
OFF
Both the AC and DC sides are powered down.
2.5 Circuit Diagram
The following figure shows the main circuit of the inverter.
ffiig gu urre e 2 2--4 4 Circuit Diagram
•
The DC switch is used to safely disconnect the DC circuit.
•
The MPPT is utilized for DC input to ensure the maximum power from the PV array at
different PV input conditions.
•
The inverter circuit converts the DC power into AC power and generates AC power to
loads or utility grid through the AC terminal.
•
The protection circuit ensures the safe operation of the device and personal safety.
2 Product Description User Manual