Alright so I recently had another VFD/2.2kw spindle setup that I was having trouble with so I returned it to get essentially the same thing. The issues I had were basically that a different VFD came with it than the Huanyang one that was pictured and has all the internet backing. This VFD was a royal PITA to get going and it eventually just wasn't worth it and stopped working so here I am with this new spindle and VFD. The new one is a 2.2kw water cooled spindle and Huanyang 2.2kw VFD for 110v.
I have the VFD seemingly working, if I don't have it plugged into the spindle it works as intended. e.g. I turn pot and it goes to the desired frequency between 0 and 400 at whatever ramp up speed I set. However, when I plug in the spindle and try to do the same thing, once it gets to about 8hz the sound slightly changes in the spindle (not necessarily a bad sound, just different) and I start to get either an A.oA or an A.oL error. I've had both of them pop up but can't seem to find them in the documentation. Then at ~10hz it shuts off with the error E.oAA. Again, can't seem to specifically find this in the documentation. It also ramps up the frequency EXTREMELY slow. The default ramp time is 10 seconds. With the spindle plugged in it moves at less than 1hz per second, somewhere in the decimals.
From what I gather it seems as if this could likely be a shorting issue within the spindle windings. I'd like to check this (by checking resistance of each winding to the spindle ground IIRC?) but I'm hesitant to take apart the spindle since I don't really know what I'm getting into. I know I have no shorts in my wiring from the spindle to the VFD, I continuity checked that just in case. I'm also confident that my parameters are correct also. I used the ones I saw posted repeatedly countless times on CNCzone apart from changing preferential ones and making sure anything 220 related was set to 110 since I'm using 110. Again the ramp up time and everything works just fine with the spindle is unplugged, so I don't think it's settings affecting it.
Hopefully it's just something stupid, would be pretty lame to have to send back a second set.