If you connect a solar panel or wind turbine to the BATTERY terminal at the same
time, if AC failed, when the battery voltage lower than 40V, the LOAD output will
turn off, but if the output voltage of the solar panel or wind turbine is higher than the
battery voltage, the battery will be charged by the solar panel or wind turbine, when
the battery voltage is back to 51V, the LOAD output will recover automatically.
The maximum load of the PS is around 300W, which means 4A maximum DC output
on LOAD and 6A maximum charge current on BATTERY. If the load draws 4A
output, then the charge current will be limited to around 2A, if there is no load, then
charge current may be up to 6A maximum.
The output voltage on LOAD terminal is regulated at 48V±0.5V, with over voltage
protection, over current protection and short circuit protection.
The charge voltage for wet battery is 58V, floating voltage is 53V.
The charge voltage for gel battery is 56.8V, floating voltage is 54V
When the charger is in charging mode and charge current is more than 1.4A, the
CHG indicator light will be YELLOW, when charge current is lower than 1.0A, the
charger turns to maintenance mode, the CHG light is off and CHD light is GREEN.
All LED indicators will turn off when AC fails except BATT and battery type
indicator (WET or GEL).
If no battery is connected on BATTERY terminal, then there will be no output on the
terminal.
The cooling fan on the model will operate when the unit is turned on. The speed of
the fan varies depending on the temperature control circuit.