System Power-On - Huawei SUN2000 Series Quick Manual

6

System Power-On

Before turning on the AC switch between the solar inverter and the power grid, check that the
AC voltage is within the specified range using a multimeter set to the AC position.
1. Turn on the AC switch between the solar inverter and the power grid.
2. (Optional) Remove the locking screw beside the DC switch. Store the screws properly for
future power-off maintenance.
3. Turn on the DC switch at the bottom of the solar inverter.
4. Observe the LED indicators to check the operating status of the solar inverter.
Status (Blinking Slowly: On for 1s and then
Category
Off for 1s; Blinking Fast: On for 0.2s and
then Off for 0.2s)
Steady green
Blinking green
slowly
Running indicator
Blinking green
slowly
Off
Off
Blinking red fast
–
Steady red
Communications
Blinking green fast
indicator
Blinking green slowly
Off
Note: If LED1, LED2, and LED3 are steady red, the solar inverter is faulty and needs to be replaced.
Steady green
Off
Blinking green slowly
Blinking green slowly The DC is off and the AC is on.
Off
–
Blinking red fast
Steady red
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Description
–
The solar inverter is operating in
grid-tied mode.
The DC is on and the AC is off.
Both the DC and AC are on, and
the solar inverter is not supplying
power to the power grid.
Both the DC and AC are off.
DC environment alarm
AC environment alarm
Fault
–
Communication is in progress.
Mobile phone access
No communication