Huawei UPS2000-G-6KRTLL Quick Manual page 16

Alarm Alarm Sever
ID Name ity
20 Lithium Minor
battery
high
tempera
ture
protecti
on
21 Lithium Minor
battery
low
tempera
ture
protecti
on
22 Lithium Minor
battery
high
voltage
protecti
on
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Clearance Trigger
Condition Condition
The cell •Charge high
temperatur temperature
e drops protection: The
below the maximum cell
protection temperature is
threshold. greater than
60°C.
•Discharge high
temperature
protection: The
maximum cell
temperature is
greater than
65°C.
The cell •Charge low
temperatur temperature
e rises protection: The
above the minimum cell
protection temperature is
threshold. less than 0°C.
•Discharge low
temperature
protection: The
minimum cell
temperature is
less than –20°C.
The cell or •The busbar
battery voltage is greater
string than 59.4 V in
voltage charging state.
drops •The maximum
below the cell voltage is
protection greater than 3.8
threshold. V.
•Considering cell
difference, the
maximum cell
voltage can be
3.9 V.
•The battery
string voltage is
greater than 55
V.
Impact
on the
System
The
internal
switch
circuit of
the lithium
battery is
disconnect
ed, and
the battery
cannot be
charged or
discharged
.
The
internal
switch
circuit of
the lithium
battery is
disconnect
ed, and
the battery
cannot be
charged or
discharged
.
The
internal
switch
circuit of
the lithium
battery is
disconnect
ed, and
the battery
cannot be
charged or
discharged
.
16
Suggestion
Possible cause: The
ambient temperature
of the lithium battery
is too high. There are
abnormal heat sources
around the lithium
battery.
Measure: If the lithium
battery cannot be
recovered due to
protection against
abnormality, contact
local Huawei
engineers to rectify
the fault.
Possible cause: The
ambient temperature
of the lithium battery
is too low. The heater
cannot work properly.
Measure: If the lithium
battery cannot be
recovered due to
protection against
abnormality, contact
local Huawei
engineers to rectify
the fault.
Possible cause: The
busbar voltage input is
abnormal and exceeds
the normal range. 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.