Category Status Meaning
Blinking green
at long
intervals (on
for 1s and
then o for
1s)
O The DC is on and the AC is o.
Blinking green
at long
intervals (on
for 1s and
then o for
1s)
Blinking green at long
intervals (on for 1s and
then o for 1s)
The DC is on, the AC is on, and the
SUN2000 is not exporting power to
the power grid.
O Blinking green at long
intervals (on for 1s and
then o for 1s)
The DC is o and the AC is on.
O O Both the DC and AC are o.
Blinking red at
short intervals
(on for 0.2s
and then o
for 0.2s)
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 (on for 0.2s
and then o for 0.2s)
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
Communicatio
n indication
LED3 N/A
Blinking green at short intervals (on for
0.2s and then o for 0.2s)
Communication is in progress.
(When a mobile phone is connected
to the SUN2000, the indicator rst
indicates that the phone is
connected to the SUN2000): blinks
green at long intervals.)
Blinking green at long intervals (on for 1s
and then o for 1s)
The mobile phone is connected to
the SUN2000.
O There is no communication.
Device
replacement
indication
LED1 LED2 LED3 N/A
Steady red Steady red Steady red The SUN2000 hardware is faulty.
The SUN2000 needs to be replaced.
SUN2000-(3KTL-10KTL)-M1
User Manual 6 Commissioning
Issue 02 (2020-11-20) Copyright © Huawei Technologies Co., Ltd. 62
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