Indicator
Status
Meaning
PV connection
indicator
Green on
At least one PV string is properly
connected, and the DC input voltage
of the corresponding MPPT circuit is
higher than or equal to 200 V.
Green off
The inverter disconnects from all PV
strings, or the DC input voltage of
each MPPT circuit is less than 200 V.
Grid-tied indicator
Green on
The inverter is connected to the power
grid.
Green off
The inverter is not connected to the
power grid.
Communications
indicator
Blinking green (on for 0.5s and then
off for 0.5s)
The inverter receives data over
RS485/PLC/FE communication.
Green off
The inverter has not received data
over RS485/PLC/FE communication
for 10 seconds.
Alarm/Maintenance
indicator
Alarm status Blinking red at long
intervals (on for 1s and
then off for 4s).
A warning alarm is generated.
Blinking red at short
intervals (on for 0.5s
and then off for 0.5s).
A minor alarm is generated.
Steady red
A critical alarm is generated.
Local
maintenance
status
Blinking green at long
intervals (on for 1s and
then off for 1s)
Local maintenance is in progress.
Blinking green at short
intervals (on for 0.125s
and then off for 0.125s)
Local maintenance fails.
Steady green
Local maintenance succeeds.
1. The SUN2000 APP enables the inverter to communicate with the monitoring system through a
USB data cable or Bluetooth for you to query alarms, configure parameters, and perform routine
maintenance. The SUN2000 APP is a convenient platform for local monitoring and maintenance.
The APP name is SUN2000.
2. Mobile operating system: Android 4.0 or later.
3. Access the Huawei app store (http://appstore.huawei.com) or Google Play
(https://play.google.com), search for SUN2000, and download the SUN2000 APP installation
package.
4. Connect a USB data cable or a Bluetooth module to the USB port of the inverter to implement the
communication between the inverter and the APP.
SUN2000 APP
7
NOTE
15
