Huawei FusionSolar SUN2000 Commissioning Manual page 22

FusionSolar Smart PV Solution-Device Replacement
Commissioning Guide
SUN2000 Deployed with Smart Dongle
Step 1 (Optional) When the SUN2000 is the primary inverter and the MBUS networking
is used, tap Quick settings on your app to change the original cascading mode to
RS485.
Figure 4-2 Setting inverter cascading
Step 2 (Optional) Remove the Smart Dongle and install it on the new master inverter.
Step 3 (Optional) Log in to the app and replace the protocol version of the new SUN2000
with that of the old SUN2000.
Issue 01 (2021-04-30)
NO TE
Tap Search for Cascaded Inverters and exit after 5s.
NO TE
● This step is required when you replace the SUN2000 of a different protocol version. For
example, when you replace the SUN2000-(8KTL-12KTL) with the SUN2000-
(3KTL-20KTL)-M0, you need to replace the protocol on the SUN2000-(3KTL-20KTL)-M0
with that on the SUN2000-(8KTL-12KTL).
● For details about inverter replacement details, contact Huawei service engineers.
Copyright © Huawei Technologies Co., Ltd.
4 Replacing the SUN2000
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