16 Replacing a CMU
Prerequisites
Figure 16-1 Position of the CMU
● Fault locating:
a. Log in to the SmartLogger WebUI, CMU WebUI, FusionSolar app, or
management system to view alarm information.
b. Refer to the alarm handling suggestions in the alarm list.
● Exporting all conguration les:
If you cannot log in to the CMU because the CMU is damaged, skip this step. Set
parameters after replacement.
a. Log in to the CMU, choose Maintenance > System Maint., and export
the conguration les of the old CMU.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 16 Replacing a CMU
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 124