16
1. Turn on the AC switch between the SUN2000 and the power grid.
2. Ensure that the DC switches at the SUN2000 bottom are ON.
3. (Optional) Measure the temperatures at the joints between DC terminals and connectors using a
point-test thermometer.
4. Observe the indicators to check the SUN2000 operating status.
To ensure that the DC terminals are in good contact, check the temperatures at the joints between
DC terminals and connectors after the SUN2000 has been running for a period of time. Ensure
that the temperature rise does not exceed 40
°
C.
NOTE
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 SUN2000 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 SUN2000 has connected to the
power grid.
Green off
The SUN2000 has not connected to the
power grid.
Communications
indicator
Blinking green (on for 0.5s and then off
for 0.5s)
The SUN2000 receives
communications data normally.
Green off
The SUN2000 receives no
communications data for 10s.
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 major 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.
SUN2000 App
7
1. The SUN2000 app is a mobile phone app that communicates with the SUN2000 monitoring
system over a USB data cable, a Bluetooth module, or a WLAN module. As a convenient local
monitoring and maintenance platform, it supports alarm query, parameter settings, and routine
maintenance. The app name is
SUN2000
.
2. Access Huawei application store (https://appstore.huawei.com) or Google Play
(https://play.google.com), search for
SUN2000
, and download the app installation package.
3. Connect a USB data cable, a Bluetooth module, or a WLAN module to the USB port of the
SUN2000 to implement the communication between the SUN2000 and the app.
NOTE
