I think this might be important. in fact I’m almost sure it is…
I’ve got 202V between red and blue and 116V between either of them and ground. if those two 116V’s were 180o apart, I should have 232V between them. No?
the only way I can see to have 202V (208) between them would be if they were (120o) out of phase…(which we expect in a 3-phase installation)
it’s pretty clear from the fine manual, and the wad of glue in the S/L2 terminal on the VFD that this thing wants single phase 220V. they’ve been running for a couple of years on whatever they’re bing fed, but they’re clearly not super happy with the concept, and I’d like to solve that…
edit: …and this video https://www.youtube.com/watch?v=uES1i2jFwJE suggests that I’m either gonna have to throw a transformer at the problem, or tell them to suck up and deal…
edit: given the amount of pissed off Chinese equipment there is around here, I’m not sure the transformer option isn’t a good one. (what I really need to do is get all our solvent recovery moved over to membranes)