LED Color Status Remarks Description
Yellow (blinking
green and red
simultaneously)
Steady on Normal The Dongle is secured and
powered on.
Green Blinking in a 2-second
cycle (on for 0.1s and
then o for 1.9s)
Normal Dialing (duration < 1 min).
Abnormal If the duration is longer
than 1 min, the 4G
parameter settings are
incorrect. Reset
theparameters.
Blinking at long intervals
(on for 1s and then o
for 1s)
Normal The dial-up connection is set
up successfully (duration <
30s).
Abnormal If the duration is longer
than 30s, the settings of the
management system
parameters are incorrect.
Reset the parameters.
Steady on Normal Successfully connected to
the management system.
Blinking at short
intervals (on for 0.2s and
then o for 0.2s)
The inverter is
communicating with the
management system
through the Dongle.
Red Steady on Abnormal The Dongle is faulty.
Replace Dongle.
Blinking at short
intervals (on for 0.2s and
then o for 0.2s)
The Dongle has no SIM card
or the SIM card is in poor
contact. Check whether the
SIM card has been installed
or is in good contact. If not,
install the SIM card or
remove and insert the SIM
card.
SUN2000-(3KTL-10KTL)-M0
User Manual 6 Commissioning
Issue 06 (2020-10-23) Copyright © Huawei Technologies Co., Ltd. 59