220V single phase to 380V three phase

[m_c]

2 speed motors are rarely dual voltage.

You can run a 380V motor from a 240Vout VFD, but you lose torque above 27Hz (IIRC! -Inverter Supermarket have a blog article explaining it) as the motor enters into constant power, rather than constant torque due to the restricted voltage.

However, 'boost' VFDs are not that expensive or rare now. I've personally used a few CNCWeiken boost VFDs - https://www.aliexpress.com/store/gro...000324416.html
But others have used Ecogoo.

[mekanik]

Thanks John/mc
That unfortunately is a problem for me, in turning mode the VFD control would be fine but for screw cutting i really require the button arrangement. i have seen inverters were the control panel detaches and presumable could be extended with a cable and mounted on the headstock so i suppose it is possible. a rotary converter is just overkill for one machine, perhaps it's back to getting the single phase motor repaired.
Does the £700 sound excessive for a rewind ?
Thanks again Guys.
Regards
Mike

[mekanik]

as you can see no terminal connections.
any ideas on how you would connect to the VFD ?
MC if you get time could you possibly send a picture me of your control system, no rush i still have to fathom a mounting arrangement fot the motor, it doesn't have the usual flange mount.
Regards
Mike