Dyness B3 - Alarm Description and Handling; Common Fault Analysis and Solutions

B3 ESS Unit User Manual
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please deal with it according to Table 4-1.
Table 4-1 Main alarm and Protection
Statue
Alarm category
Alarm
indication
Processing
Charge state
Over-current
RED
Buzzer
start
Stop charging and
find out the cause of
the trouble
High temp
RED
Stop charging
Discharge state
Over-current
RED
Buzzer
start
Stop discharging and
find out the cause of
the trouble
High temp
RED
Stop discharging and
find
out the cause of the
trouble
Total voltage undervoltage
RED
Buzzer
start
Start charging
Cell voltage undervoltage
RED
Buzzer
start
Start charging
Analysis and treatment of common faults
No.
Fault phenomenon
Reason analysis
Solution
1
The indicator does not
respond after the power
on
Total voltage
lower than 35V
Check the total voltage
2
No DC output
Battery data status
is abnormal.
Battery gets into
over-discharged
protection
Read the battery information
on the monitor.
3
The DC power supply
time is too short
Battery capacity
become smaller
Storage battery replacement
or add more modules
4
The battery can't be fully
charged to 100%
Charging voltage is
too low
Adjust charging voltage at
53.5V or 54V