Sungrow SG250HX-IN-20, Руководство пользователя, Страница: 17 / 109

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2.2.4 LED Indicator Panel
As an HMI, the LED indicator panel on the front of the inverter can indicate the present
working state of the inverter.
Table 2-1 LED indicator description
L LE ED D
iin nd diic ca atto orr
L LE ED D sstta 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 flash
(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.
OFF
OFF
Both the AC and DC sides are powered down.
2.2.5 DC Switch
The DC switch is used to disconnect the DC current safely whenever necessary.
The inverter is equipped with four DC switches, each DC switch controls its
corresponding DC terminals.
Turn the DC switches to the ON position before restarting the inverter.
User Manual 2 Product Introduction