Replacing inverters does not aect the total energy yield of the PV plant.
----End
6.5 Replacing the Smart Dongle and the Master
Inverter
6.5.1 Replacing the Smart Dongle
Replacing a Faulty Smart Dongle with a Smart Dongle of the Same Model
If SDongleA-01, SDongleA-03, or SDongleA-05 is faulty, only SDongleA of the same model
can be used to replace it.
Step 1 Remove the faulty Smart Dongle.
Step 2 Replace the SIM card. (Perform this step when the 4G communication mode is
used.)
● If the purchased Smart Dongle has a built-in SIM card, replace the Smart
Dongle without replacing the SIM card.
● If the purchased Smart Dongle does not have a built-in SIM card, use the SIM
card in the faulty Smart Dongle.
Step 3 Install a new Smart Dongle onto the inverter where the faulty Smart Dongle was
installed.
Step 4 Set the password for logging in to the WLAN. (Perform this step when the WLAN
communication mode is used.)
----End
Replacing a Faulty Smart Mobile-4G with an SDongleA-03
● Replacing a Faulty Smart Mobile-4G-CN with an SDongleA-03-CN.
● Replacing a Faulty Smart Mobile-4G-EU with an SDongleA-03-EU.
Step 1 Check that the software version of the master inverter supports the SDongleA-03.
If the software version does not support the SDongleA-03, upgrade the software
version of the master inverter.
Step 2 Remove the faulty Smart Dongle.
Step 3 Replace the SIM card. (Perform this step when the 4G communication mode is
used.)
● If the purchased Smart Dongle has a built-in SIM card, replace the Smart
Dongle without replacing the SIM card.
FusionSolar Smart PV Management System
Connection
User Manual (Inverters + SDongleA) 6 Maintenance
Issue 02 (2021-11-25) Copyright © Huawei Technologies Co., Ltd. 63
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