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Cell Under-voltage
Protection
2800mV
51.2V Circuit
3000mV
51.2V circuit
& 12V circuit
If the voltage is less than the protection voltage of 51.2V
circuit for 5s, the protection will be triggered, a pre-alarm
message will be sent out immediately, and the relay will
be opened after a delay of 10s
2600mV
12V Circuit
If the voltage is less than the protection voltage of 12V
circuit for 5s, the protection will be triggered, the switch
of 12V circuit will be opened and the power will be cut off
after a delay of 5s
Cell Under-voltage
Protection Recovery
3050mV
51.2V Circuit
3250mV
51.2V circuit
& 12V circuit
1. If the charge voltage is greater than 49.2V & PACK+2V
for 10s, the relay will be closed and engage charging.
2. After activation, during the charging and recovery, it has
a continuous self-check procedure. If it detects the charge
power is smaller than the load consumption (total current
is negative), it will open the relay and disconnect charging;
* If this happens, there is a 5-min interval before it restarts
the charge voltage detection;
* If this happens 3 consecutive times, the interval increases
to 1 hour; If it happens another 5 consecutive times, it will
be locked for 18 hours it restarts the charge voltage
detection.
* During the above process, the interval and lockout can
be cleared immediately by restarting the battery.
2800mV
12V Circuit
The 12V under-voltage protection will be released with the
relay closed if both the following recovery conditions are
met:
1. The voltage is greater than the recovery voltage (50.4V)
for 10s.
2. The SOC is greater than 20% for 10s.
SOC Warning 20% 15%
Remind customers to charge the battery and reduce the
loads
SOC Protection
Recovery
20% 20%
If the SOC is greater than 20% for 10s, the under voltage
protection will be cleared, and the 12V circuit relay will be
closed
Charge High
Temperature Warning
50℃ 50℃
If the temperature is higher than the warning temperature
for 10s, a warning will be triggered and a warning message
will be sent out immediately
Charge High
Temperature Warning
Recovery
45℃ 45℃
If the temperature is lower than the warning recovery
temperature for 10s, the warning will be cleared