Huawei SUN2000-29.9KTL Quick Manual page 17

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.
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.
4. Observe the indicators to check the SUN2000 operating status.
Indicator
PV connection
indicator
Grid-tied indicator
Communications
indicator
Alarm/Maintenance
indicator
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SUN2000 App
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.
Status
Green on
Green off
Green on
Green off
Blinking green (on for 0.5s and then off
for 0.5s)
Green off
Alarm status Blinking red at long
intervals (on for 1s and
then off for 4s).
Blinking red at short
intervals (on for 0.5s and
then off for 0.5s).
Steady red
Local Blinking green at long
maintenance intervals (on for 1s and
status then off for 1s)
Blinking green at short
intervals (on for 0.125s
and then off for 0.125s)
Steady green
Meaning
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.
The SUN2000 disconnects from all PV
strings, or the DC input voltage of each
MPPT circuit is less than 200 V.
The SUN2000 has connected to the
power grid.
The SUN2000 has not connected to the
power grid.
The SUN2000 receives
communications data normally.
The SUN2000 receives no
communications data for 10s.
A warning alarm is generated.
A minor alarm is generated.
A major alarm is generated.
Local maintenance is in progress.
Local maintenance fails.
Local maintenance succeeds.
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