Tell me more please!
It’s a Dahlander pole-switching motor (2nd in a week on here!):
Dahlander pole changing motor - Wikipedia
en.wikipedia.org
It will need a 400/415V out inverter, which will want to be directly connected to the motor, so you can‘t really use the original pole switching gear. But you don’t need to, because the inverter will give you variable speed anyway.
Speeds quoted are related to a 60Hz supply, so wire motor to VFD as per the high speed specs in your last photo. Configure your VFD frequency limits (see manual) for 60 and 30Hz, so to change speeds you simply rotate the knob on the front all the way left, or right, without having to look at the display. You could even have a remote pot in the original speed switch location.
Original start/stop buttons can be wired into the VFD control inputs.
Double delta! Nicely done.Oooh now, that's not strictly true if you're willing to put the work in. I re-configured my Dahlander pole-changing motor to run from a 240V VFD. It was a lot of work and even though it's been run on the bench the machine is still mid-restoration so it hasn't been used in anger. You can find the details here:
Tos FN22 milling machine (Deckel clone)
Pete we could build up the broken casting with braze or if you want something that matches the casting, Nickel powder Thanks Brad that's definitely something worth looking at :thumbup: It just occurred to me that it might not be obvious how this attachment is supposed to be used. Basically it...www.mig-welding.co.uk