UPS5000-H-1200 kVA
User Manual (100 kVA Power Modules)
6 Routine Maintenance
Issue 01 (2020-07-15)
Copyright © Huawei Technologies Co., Ltd.
153
6
Routine Maintenance
6.1 UPS Maintenance
Only trained personnel are allowed to perform maintenance. Before performing operations
on the UPS, wear electrostatic discharge (ESD) clothes, ESD gloves, and an ESD wrist
strap. Remove conductive objects such as jewelry or watches during operations to avoid
electric shocks or burns.
Use insulated tools when maintaining internal devices. Only trained personnel are allowed
to perform maintenance. Customers are not allowed to maintain components behind
protective covers that can be removed only using tools. If the components are to be
maintained, contact Huawei technical support.
Only maintenance engineers can maintain power modules and bypass modules.
Maintain UPSs regularly based on the following requirements. Otherwise, the UPSs may
fail to operate properly and the service life may be shortened.
6.1.1 Monthly Maintenance
Table 6-1
Monthly maintenance
Check Item
Expected Result
Troubleshooting
Operating
environment
Ambient temperature: 0–40°C
Humidity: 0–95% RH
(non-condensing)
Rodent-proof measures have
been taken for the equipment
room.
The equipment room is airtight.
If the humidity or temperature
is abnormal, check the air
conditioner status.
Put rodent-proof baffle plates
at the door of the UPS
equipment room.
Check that the equipment room
is airtight and not in a direct
ventilation environment.
Power grid
environment
Input voltage: 380 V AC, 400
V AC, or 415 V AC (line
voltage)
If the input voltage is
abnormal, check the power grid
status and input cable
