44
4
Protections
No.
Protection
Instruction
1
PV limit
current
When the charging current of the PV array exceeds its rated current, it will be charged
at the rated current.
NOTE: When the charging current exceeds the PV array's rated current, ensure the PV
open-circuit voltage no exceed the "maximum PV open-circuit voltage." Otherwise,
the inverter/charger may be damaged.
2
PV reverse
polarity
Fully protect against PV reverse polarity, correct the wire connection to resume the
regular operation.
3
Night reverse
charging
Prevent the battery from discharging through the PV module at night.
4
Utility input
over voltage
In the 220V/230VAC system, when the utility voltage exceeds 264V, it will stop utility
charging/discharging.
5
Utility input
under voltage
In the 220V/230VAC system, when the utility voltage is less than 176V, it will stop
utility charging/discharging.
6
Utility input
over current
Utility input current higher than a specified value, the device will go into protection
mode automatically. Press the over-current protection device to resume working
when the utility input current decreases to the expected value.
7
Battery
reverse
polarity
When the PV array and utility are not connected with the inverter/charger, reverse
battery polarity will not damage the inverter/charger. It will resume normal running
after the mis-wiring is corrected.
8
Battery over
voltage
When the battery voltage reaches the Over Voltage Disconnect Voltage point, the
inverter/charger will stop charging the battery to prevent battery damage due to
over charged.
9
Battery over
discharge
When the battery voltage reaches the Low Voltage Disconnect Voltage point, the
inverter/charger will automatically stop discharging the battery to prevent battery
damage due to over discharge.
10
Load output
short circuit
When a short circuit occurs at the load output terminal, the output will be turned off
immediately. The output will then be automatically restored after a delay (the first
time delay for 5s, the second time delay for 10s, the third time delay for 15s). If the
short circuit remains after three times delay, clear the fault and then restart the
inverter/charger to resume work.
11
Overload
Times of overload
1.3
1.5
Continuance
10S
5S
Recover three times
The first time delay for 5s, the second time
delay for 10s, the third time delay for 15s
12
Inverter/char
ger
The inverter/charger will stop charging/discharging when the internal temperature is
too high and will resume
overheating
charging/discharging when the temperature is recovered to normal.
