I just powerd up a HUANYANG ELECTRONICS 4hp vfd on a Baldor 3 phase motor. I'm still checking programming to make sure I have it set up correctly, but it spins. The vfd is from ebay and was $126 shipped to MN. A good deal. Case was chipped and they sent parts in under 2 weeks. Good Service.
Let me know your experience level and questions. I knew nothing about these 2 months ago so am making progress.