Quarterly Maintenance - Huawei UPS2000-H User Manual

UPS2000-H-(6 kVA-10 kVA)
User Manual
Item
Battery
string
charging
voltage

7.2.2 Quarterly Maintenance

Table 7-5 Quarterly maintenance checklist
Item
Battery
temperatu
re sensor
precision
Battery
managem
ent
parameter
settings
Issue 03 (2023-08-20)
Expected Result
● Equalized
charging voltage
(2.35 V/cell±0.02
V/cell) x Voltage
of a single
battery/2 x
Number of
batteries in a
battery string
● Float charging
voltage (2.25 V/
cell±0.02 V/cell)
x Voltage of a
single battery/2 x
Number of
batteries in a
battery string
Expected Result
The deviation
between the
detected
temperature and
the displayed
temperature is less
than 3°C.
The settings of
battery
management
parameters meet
the requirements in
the user manual.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Troubleshooting
1. If the voltage drop
between the battery
string output terminals
and the battery input
terminals at the UPS
side is greater than 1%
of the battery string
voltage, check whether
the cable between the
battery string and the
UPS is excessively long,
or the cable diameter
is excessively small.
2. Check whether the
equalized charging
voltage and float
charging voltage are
correctly set for the
UPS.
3. If the fault persists,
contact technical
support.
Troubleshooting
1. Install the battery
temperature sensor in
the correct position.
2. Replace the battery
temperature sensor.
Set parameters correctly.
7 Maintenance
Maintenance
Interval
Monthly
Maintenance
Interval
Quarterly
Quarterly
123