Chapter 4 Maintenance
In order to ensure the safe and reliable operation of SmartCabinet2-E products, regular inspection and maintenance
are required during the product life cycle. For some components, regular replacement is required according to the
using environment and the consumption level of components. At the same time, the SmartCabinet2-E products have
monitoring equipment and monitoring cores with comprehensive functions, which can monitor the power and
environment system in real time and all aspects and can report the problems to users and related operation and
maintenance personnel in a variety of alarm forms to discover and eliminate potential hazards in the device.
This chapter describes the maintenance methods of SmartCabinet2-E products, the processing of device alarm
information, the diagnosis and resolution of faults, and the replacement and processing of some components.
4.1 Precautions before Maintenance
1. High-voltage and AC operation must be performed using special tools and protective devices.
2. When replacing a device that does not support hot swap (such as air conditioner, UPS, PDU), you must first
disconnect the upper MCB of the corresponding device on the PMU to ensure that the device to be replaced is in the
power-off state before being replaced.
3. The replacement involves cutting off the general input MCB or turning off the air conditioner and should evaluate
the impact on the system. Before the system is powered off, it must be agreed by the customer before proceeding.
4. Do not install or remove the power cord with power. At the moment the power cord is in contact with the conductor,
an electric arc or spark can be generated, which can result in fire or eye injury.
5. When removing component cables, mark the corresponding terminal connectors on the cables to avoid
subsequent connection errors.
4.2 Maintenance Preparation
4.2.1 Technical Materials
Before performing maintenance on the SmartCabinet2-E product, in addition to this document, you need to prepare
the following materials in advance so that you can refer to it at any time.
Table 4-1 Materials before Maintenance
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