SUN2000-(55KTL, 60KTL) Series
User Manual
2 Overview
Issue 02 (2017-07-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7
Table 2-1
LED indicator description (from left to right)
Indicator
Status
Meaning
PV connection
indicator
DC input
detection status
Blinking green
The DC input is normal.
Blinking red
DC input detection is in
progress.
Steady red
The DC input is abnormal.
PV string
connection
status
Steady green
At least one PV string is
properly connected, and the
DC input voltage of the
corresponding maximum
power point tracking (MPPT)
circuit is higher than or equal
to 600 V.
Green off
The SUN2000 disconnects
from all PV strings, or the DC
input voltage of each MPPT
circuit is less than 600 V.
Grid-tied indicator
Steady green
The SUN2000 connects to the
power grid.
Green off
The SUN2000 does not
connect to the power grid.
Communications
indicator
Blinking green
The SUN2000 receives data
over RS485/PLC
communication.
Green off
The SUN2000 has not
received data over RS485/PLC
communication for 10
seconds.
Alarm/Maintenanc
e 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
Local maintenance fails.