Quarterly Maintenance - Huawei UPS5000-E User Manual

UPS5000-E-(50 kVA–300 kVA)
User Manual (50 kVA Power Modules)

5.2.3 Quarterly Maintenance

Table 5-5 Quarterly maintenance
Item
Battery temperature
sensor precision
Battery management
parameter settings
Tightness of battery
screws
Cables between
batteries
Battery voltage
Shallow discharge test
(recommended)
Issue 15 (2022-01-30)
Expected Result
The deviation between
the detected temperature
and the displayed
temperature must be less
than 3°C.
The settings of battery
management parameters
meet the requirements in
the user manual.
The location of the signs
marked on battery
terminals indicating tight
connections does not
change.
No cable deteriorates and
the insulation layer does
not crack.
● Equalized charging
voltage: 2.35 V/cell
±0.02 V/cell
● Float charging voltage:
2.25 V/cell ±0.02 V/cell
Conduct a shallow
discharge test when the
UPS is backed up to verify
that the batteries can
discharge normally.
Copyright © Huawei Technologies Co., Ltd.
5 Routine Maintenance
Troubleshooting
1. Install the battery
temperature sensor in
the correct position.
2. Replace the battery
temperature sensor.
Set parameters correctly.
Take photos from multiple
angles and contact
technical support.
Replace the faulty cable.
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 technical
support.
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.
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