Epever UP2000-HM6021 - Protections

50
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 110V/120VAC system, when the utility voltage exceeds 132V
(configurable), it will stop utility charging/discharging.
In the 220V/230VAC system, when the utility voltage exceeds 264V
(configurable), it will stop utility charging/discharging.
5
Utility input
under voltage
In the 110V/120VAC system, when the utility voltage is less than 88V
(configurable), it will stop utility charging/discharging.
In the 220V/230VAC system, when the utility voltage is less than 176V
(configurable), 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.