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29
Electronic Protections
Number
Protection Description
1
When the configured PV array charge current
exceeds the PV rated current, it will be charged at
the rated current
PV Current/Power
Limiting Protection
2
At night, the battery is prevented from discharging
through the PV component because the voltage of the
battery is greater than the voltage of the PV component
When the battery voltage reaches the overvoltage
disconnect point, the PV and the utility
automatically stop charging the battery, preventing
damage from overcharging the battery
When utility input is below 90VAC, charging is stopped
and the solar inverter is in inverter mode
PV Night anti-charge
protection
3
Triggered when AC Input voltage reaches 140V Overvoltage Protection
4
Power Input Under-
voltage Protection
5
Battery Over-voltage
Protection
When the battery voltage reaches the low voltage
disconnect voltage point, the battery discharge is
automatically stopped to prevent excessive discharge
of the battery from being damaged
6
Battery low-voltage
protection
When a short-circuit fault occurs at the load output, the
output AC voltage is immediately turned off and
outputs again after 1sec, for 3 more attempts. If they
fail, then the unit will need to be manually powered on
7
Load output
short-circuit protection
Output again after 3 minutes after overload
protection, overload 5 times in a row until the solar
inverter charger is powered back, with
A table of technical parameters after reference to
the load level and duration of the manual
9
Overload protection
When the battery discharge output current is
greater than the maximum and lasts 1 minute, the
AC input is loaded
13
Battery input
overcurrent protection
When the battery is reversed or the inverter is
shorted inside, the internal battery input fuse of the
inverter fuses to prevent battery damage or fire
14
Battery input protection
The inverter protects and stops when the external
battery port is shorted while the PV or AC is
charging stop the output current
15
Charge short-circuit
protection
When the internal temperature of the unit is too
high, the it will stop charging and discharging
8
Over-temperature
protection
Built-in AC input overcurrent protection circuit breaker
12
Bypass Flow Protection
Prevents battery power mode from inverting when
bypass is active
11
Bypass Protection
protection
Protection against reversing PV input connection
10
PV reverse polarity
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