Alarm
ID
Alarm
Name
Severity
Clearance
Condition
Trigger
Condition
Impact on the
System
Suggestion
25
Lithium
battery
fault
Minor
The alarm
is not
cleared.
After
batteries
are reset,
check the
status
again.
The cell
voltage
sampling
circuit is
faulty.
The cell
temperature
sampling
circuit is
faulty.
The cell
voltage is
too high or
too low.
The cell
temperature
increases
abnormally.
The cell
voltage is
severely
unbalanced.
BMS board
circuit fault
The internal
switch circuit of
the lithium
battery is
disconnected,
and the battery
cannot be
charged or
discharged.
Possible cause:
sampling fault (see
the telecom power
manual); cell or
equalization circuit
fault; charger
converter short-
circuit, relay fault;
switch tube fault
Measure: Restart
the lithium battery.
If the fault persists,
replace the lithium
battery.
26
Lithium
battery
exceptio
n
protectio
n
Minor
Check
again
after the
fault is
rectified.
The busbar
voltage is
too high.
The
temperature
of the board
relay and
switch tube
is too high.
The output is
short-
circuited.
Batteries are
reversely
connected.
The output is
overloaded.
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 host charger is
abnormal, or
battery cables are
incorrectly
connected.
Measure: Check the
cable connection,
check the host
status, or reduce
the load.
UPS2000-G-6KRTLL
User Manual
4 Control Panel
Issue 01 (2020-08-06)
Copyright © Huawei Technologies Co., Ltd.
66