How did you wire it? You want one wire to the leftmost pin, and the other wire to both the centre and the right. If you just use the outer two, turning the pot won't affect it's resistance.Right I've got power but I'm not sure if I've got a dead pot or wired it wrong as my speed control is barely making any difference. I'm currently doing about 3rpm give or take whichever way I turn my pot.
Brad, the invertor takes 1p 240v. I suggest you use 2 pots, the 1k [supplied] as coarse and a 10k [I believe] as a fine.
The slightest touch [1k only] makes a lot of difference [speed] if you are wishing to have a very consistent weld.
In that case if you unsolder the middle wire and short it in turn to both the outside legs that should give you max and min rpm.
Unplugging the middle wire the motor does nothing.Not sure what's going on if I knock the pot it jogs the motor and the speed changes. I can get down to a low rpm either.
Single phase to three phase inverter / vsd microdriveWhat is the capacitor board you've got wired in?
Well it does alter the frequency to control speed so I suppose it is still a vfdRight, so not a VFD. I'll retire from this thread
I bought one of these as a speed controller (clicky-linky);
View attachment 106461
Upsides; £4.34 delivered, no soldering
Downside; took a couple of weeks to delivery so no good for the short of patience
It definitely changes the frequency mate, says so in the manual. I can set the upper limit to max 120hz.No, it provides a phase shift, which is totally different.