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9
Powering On the System
Before turning on the AC switch between the SUN2000 and the power grid, check that the AC
voltage is within the specified range using a multimeter.
1. Turn on the AC switch between the SUN2000 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 SUN2000.
4. Observe the LED indicators to check the operating status of the SUN2000.
Classification
Status (Blinking Slowly: On for 1s
and Off for 1s; Blinking Fast: On for
0.2s and Off for 0.2s)
Running
indication
Steady green
Blinking green
slowly
Blinking green
slowly
Off
Off
Blinking red fast
–
Steady red
Communications
indicator
Blinking green fast
Blinking green slowly
Off
Note: If LED1, LED2, and LED3 are steady red, the SUN2000 is faulty and needs to be replaced.
Steady green
Off
Blinking green
slowly
Blinking green
slowly
Off
–
Blinking red fast
Steady red
47
Description
–
The SUN2000 is operating in grid-
tied mode.
The DC is on and the AC is off.
Both the DC and AC are on, and the
SUN2000 is not supplying power to
the power grid.
The DC is off and the AC is on.
Both the DC and AC are off.
DC environmental alarm
AC environmental alarm
Faulty
–
Communication is in progress.
Mobile phone access
No communication
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