LED Indicator Status Remarks Description
Blinking slowly
(on for 1s and
o for 1s)
Normal The dialup is successful
(lasts for less than 30s).
Abnorma
l
If the duration is longer
than 30s, the management
system parameters are
incorrectly set. Re-congure
the parameters.
Steady on Normal The management system is
successfully connected.
Blinking fast (on
for 0.2s and o
for 0.2s)
The inverter is
communicating with the
management system
through the Smart Dongle.
Red Steady on Abnorma
l
The Smart Dongle is faulty
and needs to be replaced.
Blinking fast (on
for 0.2s and o
for 0.2s)
The Smart 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 a SIM
card or remove and re-
insert the SIM card.
Blinking slowly
(on for 1s and
o for 1s)
The Smart Dongle fails to
be connected to a
management system
because the SIM card has
poor or no reception, or has
run out of mobile data. If
the Smart Dongle is reliably
connected, check the SIM
card connectivity through
the app. If you have poor or
no reception, contact the
carrier. Check whether the
tari and mobile data plan
of the SIM card are
adequate. If not, ensure
sucient balance in the
SIM card or purchase a data
package.
SUN2000-(12KTL-25KTL)-M5 Series
User Manual 6 Commissioning
Issue 10 (2024-05-14) Copyright © Huawei Digital Power Technologies Co., Ltd. 52
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