Wasim

yes, of course. The inverter technology primarily rectified the AC into DC and then converts DC TO DC using buck or boost scheme and finally inverts the DC back into AC. There its safe, to suppy a 3 phase inverter with single phase or double phase or even supply with the required DC voltage, the inverter firstly it rectifies it into DC. If inverter supplied by required DC voltage for example 420DCV, the rectifier directly passes the DCV to bulk capacitor. hope ...I have cleared the point.

i have a vm3 5.2kva solar inverter, that doesn't star from battery. its main s.p.s was burnt, with the help of the service manual available on the powerforum.co , i repaired the main s.p.s butt it doesn't turn on yet from, although IT TURNS ON FROM SOLAR AND GRID POWER but shows WARNING 32. for that i tried to reflash its firmware but it gets fail. I found that there is NO INPUT TO BOTH REGULATORS 78MO5G AND 7912C. what can be the problem.