All-in-one solar charge inverter 31
6.
Protection
6.1 Protections provided
No.
Protections
Description
1
PV current/power
limiting protection
When charging current or power of the PV array configured exceeds
the PV rated, it will charge at the rated.
2
PV night reverse-
current protection
At night, the battery is prevented from discharging through the PV
module because the battery voltage is greater than the voltage of PV
module.
3
Mains input over
voltage protection
When the mains voltage exceeds 280V (230V model) or 140V (120V
model), the mains charging will be stopped and switched to the
inverter mode.
4
Mains input under
voltage protection
When the mains voltage is lower than 170V (230V model /UPS mode)
or 90V (120V model or APL mode), the mains charging will be
stopped and switched to the inverter mode.
5
Battery over
voltage protection
When the battery voltage reaches the overvoltage disconnection
point, the PV and the mains will be automatically stopped to charge
the battery to prevent the battery from being overcharged and
damaged.
6
Battery low voltage
protection
When the battery voltage reaches the low voltage disconnection
point, the battery discharging will be automatically stopped to
prevent the battery from being over-discharged and damaged.
7
Load output short
circuit protection
When a short-circuit fault occurs at the load output terminal, the AC
output is immediately turned off and turned on again after 1 second.
8
Heat sink over
temperature
protection
When the internal temperature is too high, the all-in-one machine
will stop charging and discharging; when the temperature returns to
normal, charging and discharging will resume.
9
Overload
protection
Output again 3 minutes after an overload protection, and turn the
output off after 5 consecutive times of overload protection until the
machine is re-powered. For the specific overload level and duration,
refer to the technical parameters table in the manual.
