Sorry guys but I'm not familiar with yours voltages levels, so I use my - EU standard.
Maybe I don't understand you correctly but:
It's not possible to feed motor 3x400V form inverter supply with 1ph (230V). But when you have motor 3x400V star, then you can connect it to delta=3x230V and supply from 1ph by inverter (derating needed because you have only 1ph).
Maybe I don't understand you correctly but:
It's not possible to feed motor 3x400V form inverter supply with 1ph (230V). But when you have motor 3x400V star, then you can connect it to delta=3x230V and supply from 1ph by inverter (derating needed because you have only 1ph).