Huawei LUNA2000-200KWH-2H1 - 25 Replacing an I;O Expansion Board

25 Replacing an I/O Expansion Board
Context
Figure 25-1 Position of the I/O expansion board
● 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.
● Tools: Phillips insulated torque screwdriver, insulated torque socket wrench
● Power-o:
a. Log in to the SmartLogger WebUI, CMU WebUI, FusionSolar app, or
management system and send a shutdown command to the rack
controller.
b. Turn o the ESS output DC switch 1Q2.
c. Turn o the ESS battery rack DC switch 1Q1.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 25 Replacing an I/O Expansion Board
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 147