LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual
25
Context
Figure 25-1 Position of the I/O expansion board
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Issue 02 (2023-02-28)
Replacing an 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-off:
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 off the ESS output DC switch 1Q2.
c.
Turn off the ESS battery rack DC switch 1Q1.
Copyright © Huawei Digital Power Technologies Co., Ltd.
25 Replacing an I/O Expansion Board
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