i have 5 k watt vm11 invrex inveter
2 high temp problem when ever i clean filters on sides,
restart failure long beep continuous.
after setting charge only on pv but it use grid to charge battery.
minimum dc in put 120 when ever 5 kva had start with 60 to 72 dcv
we cant use 3 or four panel string to achieve better out put if part of one solar panel in shade it drop the volt of string all panels.
company revise its software and re design .
any person can tell me how it can be use without batteries.
thanks & regards
Abdul razzaq fsd.