UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
6 Routine Maintenance
Issue 01 (2020-04-27)
Copyright © Huawei Technologies Co., Ltd.
158
Item
Expected Result
Troubleshooting
Battery management
parameter settings
The settings of battery
management parameters meet
the requirements in the user
manual.
Set parameters correctly.
Tightness of battery
screws
The location of the signs
marked on battery terminals
indicating tight connections
does not change.
Take photos from multiple
angles and contact Huawei
technical support.
Cables between batteries
No cable deteriorates and the
insulation layer does not
crack.
Replace the faulty cable.
Battery voltage
Equalized charging
voltage: 2.35 V/cell ±0.02
V/cell
Float charging voltage:
2.25 V/cell ±0.02 V/cell
1.
Check whether the
equalized charging voltage
and float charging voltage
of a battery are normal.
2.
If the charging voltage of a
battery exceeds the
specifications requirement,
perform a complete
forcible equalized charging
for the battery, and check
again whether the voltage
is normal.
3.
If the fault persists, contact
Huawei technical support.
Shallow discharge test
(recommended)
Conduct a shallow discharge
test when the UPS is backed
up to verify that the batteries
can discharge normally.
1.
If the batteries cannot
discharge normally, locate
the fault (for abnormal
alarms, see the alarm list).
2.
If the fault persists, contact
Huawei technical support.
6.2.4 Annual Maintenance
Table 6-6
Annual maintenance
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 cause when an
exception is identified.
2.
If the fault persists, contact
Huawei technical support.
Battery
connection
reliability
1.
Each battery terminal is
connected reliably. (When
battery strings are powered
off, check the reliability of
each terminal in the order
1.
Rectify any abnormal
connection.
2.
If the fault persists, contact
Huawei technical support.