12
table 2-1 State description of the LED indicator
LED color
State
Definition
Blue
On
The inverter is operating normally.
Flashing
The inverter is at standby or startup state (not
feeding power into the grid).
Red
On
A system fault has occured.
Gray
Off
Both the AC and DC sides are powered down.
Voltage may still be present in AC side circuits after the indicator is off. Pay atten-
tion to the electricity safety during operating.
2.5
Circuit Diagram
The following figure shows the main circuit of the inverter.
figure 2-5
Circuit Diagram (SG10RS for example)
•
DC Switches can safely disconnect the PV input when necessary to ensure the safe op-
eration of the inverter and the safety of personnel.
•
The DC SPD provides a discharge circuit for the DC side overvoltage to prevent it from
damaging the internal circuits of the inverter.
User Manual
