6.2.4 Annual Maintenance
Table 6-6 Annual maintenance
Check Item Expected Result Troubleshooting
Capacity test When the UPS is backed up,
discharge a battery to the
undervoltage alarm threshold
to refresh the capacity of the
battery.
1. Locate the fault cause.
2. If the fault persists, contact
technical support.
Battery
connection
reliability
1. When battery strings are
powered o, check the
reliability of each
connection point from
positive terminals to
negative terminals. All
points are connected
reliably.
2. Use a torque wrench to
check the tightening
torque for each battery
screw. The torque meets
the requirements of the
battery manufacturer.
After checking that the
battery screws meet the
requirements, mark the
screws for later check.
1. Rectify any abnormal
connection.
2. If the fault persists, contact
technical support.
UPS5000-E-(30 kVA–180 kVA)
User Manual (Integrated UPS) 6 Routine Maintenance
Issue 02 (2022-12-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 152
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