You need to find a schematic for the lift.
The converter does not have a neutral and not easy to add for full power. However the neutral on the lift may only be for the control circuit and could be rewired to the single phase input.
A balanced 3 phase load like a motor does not need a neutral.

Robert.

Hi,

The phase 1 and neutral connections going to the control unit (left hand side of first diagram) need to go to the single phase 240V mains input to your converter.
To be clear, Disconnect both live and neutral currently connected from the 3 phase input to the control board and connect the CONTROL BOARD to the 240V.

I can’t make out if there are any neutral connections on the second diagram. Can you download the PDFs?

Robert.

Having been caught by SIMPLE jobs that turn out to be a nightmare, it’s not so much don’t want to work as don’t want to get involved in something that could go badly wrong – leaving nobody very happy ! The hoist is probably made as a single phase unit for places where there is no 3 Phase, you have a 3 phase unit and No 3 phase. There are ways round it but will take time and some money but if you have little knowledge of electrics the cost will go up dramatically. I live in a village with only 2 Phases, so I built my own 3 Phase generator – because I could. Good luck. Noel.

That is what I understood and gave you a reason why they may not want to get involved. Eg I was Asked to fit a control box on a compressor, did it ! Then the motor was knackered, fitted new motor only to find the tank was corroded through and the machine was scrap ! I was left holding a £ 300 baby ! Noel.