Quarterly Maintenance - Huawei UPS5000-S-1200 kVA User Manual

UPS5000-S-1200 kVA
User Manual
Item
Charge
voltage of
battery string

6.2.3 Quarterly Maintenance

Table 6-5 Quarterly maintenance
Item
Battery temperature
sensor measurement
accuracy
Battery management
parameter settings
Tightness of battery
screws
Cables between
batteries
Issue 10 (2023-05-26)
Expected Result
● Equalized charging voltage:
(2.35 V/cell ±1%) x Single
battery voltage/2 x Number
of batteries in a battery
string
● Float charging voltage:
(2.25 V/cell ±1%) x Single
battery voltage/2 x Number
of batteries in a battery
string
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Expected Result
The difference between
the temperature
measured by the
temperature sensor and
the temperature displayed
on the MDU is 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.
6 Routine Maintenance
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
Huawei technical support.
Troubleshooting
1. Install the temperature
sensor in the correct
position.
2. Replace the battery
temperature sensor.
Set parameters correctly.
Take photos from multiple
angles and contact Huawei
technical support.
Replace the faulty cable.
210