Huawei UPS5000-E-30 kVA-FM - Quarterly Maintenance

5.2.3 Quarterly Maintenance
Table 5-5 Quarterly maintenance
Item Expected Result Troubleshooting
Battery temperature
sensor precision
The deviation between
the detected temperature
and the displayed
temperature must be less
than 3°C.
1. Install the battery
temperature sensor in
the correct position.
2. Replace the battery
temperature sensor.
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
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 oat
charging voltage of a
battery are normal.
2. If the charging voltage
of a battery exceeds the
specications
requirement, perform a
complete forcible
equalized charging for
the battery, and check
again whether the
voltage is normal.
3. If the fault persists,
contact 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 technical
support.
UPS5000-E-(30 kVA–120 kVA)-FM
User Manual 5 Routine Maintenance
Issue 03 (2022-01-30) Copyright © Huawei Technologies Co., Ltd. 115