Protection - Epever UP1500-M3222 User Manual

4. Protection

Protection
PV Over Current
PV short circuit
PV Reverse Polarity
Night Reverse Charging
Utility input overvoltage
Utility input under voltage
Battery overvoltage
Battery Over Discharge
Load Short Circuit
Load Overload
Device overheating
When the charging current of the PV array exceeds its rated current, it will be charged at the rated current.
NOTE: When the PV modules are in series, ensure that the open-circuit voltage of the PV array does not exceed the "maximum PV
open-circuit voltage". Otherwise the inverter/charger may be damaged.
When PV is not charging and short circuit, the inverter/charger is not damaged.
Fully protection against PV reverse polarity, correct the wire connection to resume normal operation.
NOTE: The inverter/charger will be damaged when the PV array straight polarity and the actual operation power of the
PV array is 1.5 times greater than the rated charge power!
Prevent the battery discharging through the PV module in the night.
When the utility voltage exceeds 280V, it will stop utility charging/discharging.
When the utility voltage less than 160V, it will stop utility charging/discharging.
When the battery voltage reaches to the set point of Over Voltage Disconnect Voltage, the inverter/charger will stop charging the
battery to protect the battery from being over charged to break down.
When the battery voltage reaches to the set point of Low Voltage Disconnect Voltage, the controller will stop discharging the
battery to protect the battery from being over discharged to break down.
It will immediately close the output in occurrence of short-circuit and hereafter the output is automatically
recovered in time 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 3 times of delay, restart the inverter/charger only after
105%
Overload
15
min.
Continuance
The first time delay for 5s, the second time delay for 10s, the third time delay for 15s
Recover 3 times
The inverter/charger will stop charging/discharging when the internal temperature is too high, and will restore
charging/discharging when the temperature is recovered to normal.
Instruction
131%
30S
17
clearing the fault.
160% 183%
10S 5S