Hard to make much of the photo as some of the leads seem to be labelled with their colours and some with something else! Could you possibly say what the labels say on each lead with its colour? - that might be helpful.

There seem to be 7 wires on a 3-phase motor, so I would guess that one, possibly the green/yellow one, is ground and connected to the frame - easy to check. I don't think there could be 7 wires on a single phase. The reason why 380v is associated with 3 phase is because that's the phase-to-phase voltage, which corresponds to 230v phase-to-neutral. Your home single phase supply is usually one phase of a 3 phase supply with a neutral.

That leaves 6 more wires. Measure the resistance between them in pairs. If you are lucky you will get 3 pairs that look nearly shorted but each isolated from the other two. That would mean a simple 3-phase winding that you could easily connect in delta to run on 230v but since the plate indicates dual speed then probably not so lucky.

The only other thing to do is measure all the resistances from each terminal to the other 5 - not so bad , I think there are only 15 measurements to make. From those we might be able to figure out how the windings are configured and which wire goes where.