need guidance!
I have installed two Infini Solar VIII inverter in parallel. In day time when inverter back feed to grid, in the beginning grid voltage and output voltage normal. as solar production increase both output and input voltage increase gradually and a stage come when voltages reach above 255 and system trips. snaps are for reference and it keeps doing same for whole period of day time. system acts as below only in parallel mode. and urgent response from experts appriciated.