Trying to get a cheap chinese POS VFD to work on my bridgeport - the VFD is new and I just installed it an wired it in but I'm getting strange results. The VFD seems to think it's working properly and does not show any error codes but I'm only getting ~5 VAC between each of the output legs. I have ~140 VAC between each leg and ground. The VFD is a 2.2 KW 'HY' unit, running off 220 single phase. Mill is a BP series 1 2HP. I have measured the VFD output with the motor connected and disconnected and get the same result. The motor turns freely and was working when I tested it with a rotary phase converter, though this was before putting the head back together and not using the current wiring so there's slim chance there's something wrong there.
Thoughts? My guess is something wrong with the VFD, but I want to make sure it's not something I messed up first.
Thanks,
~John
Thoughts? My guess is something wrong with the VFD, but I want to make sure it's not something I messed up first.
Thanks,
~John