Dyness B3 ESS B4870, User Manual

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B3 ESS Unit User Manual
10
Battery
Status
SOC LED1 LED2 LED3 LED4 ALM RUN
Discharging
75%
≤
SOC
≤
100%
● ● ● ● off ●
50%
≤
SOC ＜ 75%
● ● ● off off ●
25%
≤
SOC ＜ 50%
● ● off off off ●
5% ＜ SOC ＜ 25%
● off off off off ●
0%
＜
SOC
≤
5%
● off off off Blinking ●
SOC=0 off off off off ● Blinking
● means green light always on ● means red light always on
Blinking: means green light flashing Blinking: means red light flashing
2.4 Battery Management System(BMS)
2.4.1 Voltage Protection
Discharging Low Voltage Protection ：
When any battery cell voltage is lower than the protection value during discharging, the over-
discharging protection starts, and the battery buzzer makes an alarm sound. Then battery system
stops supplying power to the outside. When the voltage of each cell recovers to rated return range,
the protection is over.
Charging Over Voltage Protection ：
When total voltage or any battery cell voltage reaches the protection value during charging,
battery stops charging. When total voltage or a cell recover to rated return range, the protection
is over.
2.4.2 Current Protection
Over Current Protection in Charging ：
When the charging current is greater than the protection value, the battery buzzer alarms and the
system stops charging. Protection is removed after rated time delaying.
Over Current Protection in Discharging ：
When the discharge current is greater than the protection value, the battery buzzer alarms and
the system stops discharging. Protection is released after rated time delaying.
Note:
The buzzer sound alarm setting can be manually turned off on the background software, and the
factory default is on.
2.4.3 Temperature Protection
Less/Over temperature protection in charging ：
When battery’s temperature is beyond range of 0 ℃ ~+55 ℃ during charging, temperature
protection starts, device stops charging.
The protection is over when it recovers to rated return range.
Less/Over temperature protection in discharging
：
When battery’s temperature is beyond range of -20 ℃ ~+55 ℃ during discharging, temperature
protection starts, device stops supplying power to the outside.