Deye Spring RW-M6.1 - Page 21

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The cell temperature
sampling circuit is
faulty
connected.
The voltage sampling terminal
is disconnected.
The fuse in the voltage sam-
pling circuit is blown.
The cell temperature sensor
has failed.
Electrochemical
cell fault
The voltage of the cell
is low or unbalanced.
Due to large self- discharge,
the cell over discharges to be-
low 2.0V after long term stor-
age.
The cell is damaged by external
factors, and short circuits, pin-
pricks, or crushing occur.
Replace the bat-
tery.
Overvoltage
protection
The cell voltage is
greater than 3.65 V in
charging state.
The battery voltage is
greater than 58.4 V.
The busbar input voltage ex-
ceeds the normal value.
Cells are not consistent. The
capacity of some cells deterio-
rates too fast or the internal
resistance of some cells is too
high.
If the battery can-
not be recovered
due to protection
against abnormal-
ity contact local
engineers to recti-
fy the fault.
Under voltage
protection
The battery voltage is
less than 40V.
The minimum cell volt-
age is less than 2.5V
The mains power failure has
lasted for a long time.
Cells are not consistent. The
capacity of some cells deterio-
rates too fast or the internal
resistance of some cells is too
high.
Same as above.
Charge or dis-
charge high
temperature
protection
The maximum cell
temperature is greater
than 60
◦
C
The battery ambient tempera-
ture is too high.
There are abnormal heat
sources around
Same as above.
Charge low
temperature
protection
The minimum cell tem-
perature is less than
0
◦
C
The battery ambient tempera-
ture is too low.
Same as above.
Discharge low
temperature
protection
The minimum cell tem-
perature is less than
-20
◦
C
The battery ambient tempera-
ture is too low.
Same as above.