Huawei SUN2000-36KTL - 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.
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
16
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 data over
RS485/PLC/FE communication.
Green off
The SUN2000 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 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.