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What about if I install a 3 pole double throw switch that will allow me to start the motor without the VFD and then switch to the VFD once the motor is running, removing the starting capacitor from the circuit in the VFD mode?

I've just beenthinking.. When I take the VFD out and just wire it straight to the pump, it spins fine. Obviously it's more or less instantaneously 1OO percent RPM immediately.. so I'm wondering, is there a way I can set the VFD to start the pump at full speed, then allow me to lower it? That...

Thanks for the responses. There aren't any parameters I saw on there that have had an effect on the VFD tripping upon starting up. When I first attached it, it only tripped at about 3OHz. Now it is tripping before it even gets to its minimum frequancy of 2O. Any other ideas before I give up? Sean

Thanks again for the reply! I was able to rewire it to get it to spin in the right direction. You say the U line should be connected? I have it un-connected now, because the directions say ''connect secondary coil after removed capacitor'' but I still have the starting and running capacitors...

I have done more research and it seems if I slowly ramp up speed on the VFD, it doesn't trip. As for the rotation direction, it seems reversing the polarity of the starting capacitor should reverse the rotation direction. MY QUESTION IS: shall I also reverse the polarity of the running...

Thanks for the reply zlatkodo. Firstly, Can you tell me what AT2 wiring is? In any case, I am surprised you say you doubt it'll work. Why not? Regardless of the Chinese instructions, etc, it is certainly possible to wire a VFD to a single phase motor, correct? Any other suggestions out there?

Thanks for all the replies. My apologies, I think I got the phasing of the motor wrong. It looks like a single phase motor. It is still spinning the wrong way. I see on here (https://img.yumpu.com/37346484/1/500x640/single-phase-cap-start-cap-run-motors-rotor-uk.jpg) that I can change the...

Hi, I have a very basic knowledge of electricity and motors, but have run into a bit of a bind. I have a single phase 16A 22OV power supply for a 3 phase motor (http://www.cnyuy.com/sanitary-centrifugal-pump/yuy-l-sanitary-centrifugal-pump) I am trying to install a VFD on. I have two...