Alarm
ID
Alarm
Name
Severity
Clearance
Condition
Trigger
Condition
Impact on the
System
Suggestion
23
Lithium
battery
low
voltage
protectio
n
Minor
The cell
or battery
string
voltage
rises
above the
protection
threshold.
The lithium
battery
voltage is
less than 44
V.
The
minimum
cell voltage
is less than
2.5 V.
The internal
switch circuit of
the lithium
battery is
disconnected,
and the battery
cannot be
charged or
discharged.
Possible cause: The
mains power has
failed and not been
recovered for a
long time. The cell
consistency is
abnormal. The
capacity
attenuation is too
fast or the internal
resistance is too
large.
Measure: If the
lithium battery
cannot be
recovered due to
protection against
abnormality,
contact local
Huawei engineers
to rectify the fault.
24
Lithium
battery
overcurre
nt
protectio
n
Minor
The
battery
discharge
current
drops
below the
protection
threshold.
Discharge
current ≥
0.93 times of
the current
limit and
Vbus ≤ 40 V
for 15s
Discharge
current ≥
0.98 times of
the current
limit and
Vbus < 17 V
for 8s
The internal
switch circuit of
the lithium
battery is
disconnected,
and the battery
cannot be
charged or
discharged.
Possible cause: The
UPS is overloaded.
The number of
working batteries is
insufficient.
Measure: Reduce
the load. Add
batteries.
UPS2000-G-6KRTLL
User Manual
4 Control Panel
Issue 01 (2020-08-06)
Copyright © Huawei Technologies Co., Ltd.
65