SmartACU2000D Smart Array Controller
User Manual (with No PID Module)
7 System Maintenance
Issue 01 (2020-02-14)
Copyright © Huawei Technologies Co., Ltd.
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Do not perform operations with power on because high voltage exists during the running
of the device.
Before replacing a component, ensure that a spare component of the same model is
available and functional.
Before replacing a component, power off the SACU. Wait at least 3 minutes after the
power-off to ensure that the SACU is de-energized.
After replacing a component, check the SACU before powering it on to ensure that the
new component works properly.
Dispose of faulty components in accordance with the local disposal act for waste electrical
equipment.
7.3.1 Replacing the Single/Three-Phase SPD
An SPD consists of a surge protection module and a base.
If an SPD is damaged or its indication window is displayed in red, the SPD is deemed unavailable
and needs to be replaced.
A single-phase SPD is replaced in the same way as a three-phase SPD. This section describes how to
replace a single-phase SPD.
Step 1
Remove the faulty surge protection module from the SPD.
Figure 7-1
Removing a faulty surge protection module
Step 2
Install a new surge protection module.