Huawei SUN2000-M2 - Observing Inverter LEDs

16
5. Observe the LEDs to check the operating status of the inverter.
Type
Status
(
Blinking at long intervals: On
for 1s and then Off for 1s; Blinking
at short Intervals: On for 0.2s and
then Off for 0.2s
)
Meaning
Running
indication
N/A
Steady green
Steady green
The solar inverter is operating in grid
-
tied
mode.
Blinking green
at long
intervals
Off
The DC is on and the AC is off.
Blinking green
at long
intervals
Blinking green at
long intervals
Both the DC and AC are on, and the solar
inverter is not exporting power to the
power grid.
Off
Blinking green at
long intervals
The DC is off and the AC is on.
Off
Off
Both the DC and AC are off.
Blinking red at
short intervals
N/A
There is a DC environmental alarm, such
as an alarm indicating that
High String
Input Voltage
, String Reverse Connection,
or
Low Insulation Resistance.
N/A
Blinking red at
short intervals
There is an AC environmental alarm, such
as an alarm indicating
Grid Undervoltage
,
Grid Overvoltage, Grid
Overfrequency, or
Grid
Underfrequency.
Steady red
Steady red
Fault
.
Communication
indication
N/A
Blinking green at short intervals
Communication is in progress.
Blinking green at long intervals
A mobile phone is connected to the solar
inverter.
Off
There is no communication.
Device
replacement
indication
N/A
Steady red
Steady red
Steady red
The solar inverter hardware is faulty. The
solar inverter needs to be replaced.