I set the base frequency to be 29hz and the VFD is set to deliver 240v at base frequency, seems to be more power but still bogs down if i try highest gearing on the variable drive even in back gear which is strange as i would have though this would have greatly reduced the load from the geartrain etc
One thing it may be worth trying is an auto tune (if it has that feature) - I had an American spec motor which I thought was set correctly to run on a Siemens micromaster drive, but it ran like a complete dog until I ran the auto tune feature after which it was lovely.
You could try the boost feature but really what that’s doing is similar to reducing the base frequency - worth a bash as an experiment if nothing else though.
Ok so went with plan B and put the spare daul voltage motor on , just tried everything to get more power out of the motor but no luck
had to do a quick fab of a bracket to fit motor as lathe is 5" x 4" but new motor was 5" X 3" luckily by turning motor mount round 180 degrees the nose of the motor lined up the same as the old one
had to fit 1/2" spacers behind new bracket so that i could tighten down on it
was a bit of a faff getting belt adjusted but got there in the end
@Seadog set motor to delta as you said was easy as links were there setting it to star for 440v
@daleyd was a bit apprehensive but reset all settings back to standard on VFD and fired it up .... wow what a difference definately getting full speed and torque now no bogging down at all
thanks for all the advice guys can get on and sort the stand and splash guard now , need to get a remote control for the VFD but thinking of just making one looks pretty easy just need a 10k pot for the freq control
may put a stop switch where the old fwd/rev switch was or tempted to put a RPM display there too