FusionModule800 Smart Small Data Center
Maintenance Guide
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
The battery switch of the battery cabinet must be disconnected. When there are multiple
battery strings connected in parallel, all battery switches need to be disconnected. Ensure that
all battery switches are disconnected during replacement.
Tools: electroprobe, insulation gloves, Phillips screwdriver, multimeter.
Materials: A spare battery switch trip board (BIB board for short) of the same model is
available and functional.
The battery switch trip board is damaged or faulty and cannot work.
The figures are for reference only. The actual product appearance prevails.
Procedure
Step 1 Determine the position of the faulty battery switch trip board, and open the corresponding
cabinet door.
Step 2 Remove the front panel of the battery cabinet circuit breaker using a Phillips screwdriver, as
shown in Figure 5-18.
Figure 5-18 Removing the front panel of the circuit breaker
Step 3 Switch a multimeter to the DC voltage mode to measure the voltage between positive and
negative copper bars at the upper part of the battery switch. If the voltage is lower than 36 V
DC for 1 minute, remove the cables from J5/J7/J6/J1 ports on the BIB board, as shown by (1)
in Figure 5-19.
When removing cables, label the cables with corresponding terminal ports for later connection.
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