Huawei LUNA2000-97KWH-1H1 Maintenance Manual page 127

LUNA2000-(97KWH-1H1, 129KWH-2H1,
161KWH-2H1, 200KWH-2H1) Smart String ESS
Maintenance Manual
Procedure
Step 1 Disconnect cables from the CMU and label the cables.
Step 2 Remove the faulty I/O expansion board.
Figure 27-2 Removing the I/O expansion board
Step 3 Install a new I/O expansion board.
Figure 27-3 Installing an I/O expansion board
Step 4 Reinstall the cables.
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Issue 04 (2023-06-30)
d. Turn off AC switch 1FCB1 of the CMU adapter power supply.
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27 Replacing an I/O Expansion Board
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