- Joined
- Oct 13, 2014
- Messages
- 9,451
My experience: I have a Huanyang VFD on my 5hp air compressor, for about 6-7 years now. It looks almost identical to the one in the picture except it's 7.5kw, which in theory, makes it rated at double the needed hp. For the most part it works fine, However, it sometimes faults for "Over Current" when run continuously, particularly in the summer or hot weather. The problem appears heat related, as once it cools down it resets and works fine. I've tried everything as far as adjusting parameters, checking connections, and wire gauge, etc. Since I rarely need continuous air, I simply put up with the problem.
For evaluating the lathe, you might try a static phase converter, yes it will only give you ⅔ of the rated hp but for a lathe it probably won't be noticed (I had a static on my Heavy 10 for years, I never stalled the motor). They are cheap to buy and you can even make one for under $20, as it's essentially, just a couple of capacitors. Schematics are available on line.
For evaluating the lathe, you might try a static phase converter, yes it will only give you ⅔ of the rated hp but for a lathe it probably won't be noticed (I had a static on my Heavy 10 for years, I never stalled the motor). They are cheap to buy and you can even make one for under $20, as it's essentially, just a couple of capacitors. Schematics are available on line.
Last edited: