Huanyang VFD,Variable Frequency Drive,AC Single Phase 110/120V Input, for Three-Phase 110V Motor/Spindle Speed Rotation,HY Series (3kW 4HP)

Powerful as expected.

100% off lable use, and dropped it 3 feet onto concrete... it still worked! Yes, this can run an average size SIGLE PHASE window air-conditioner. The frequency needs to be fixed at 60hz and the voltage programmed for 115v, but yes it works and it has forgiven several of my mistakes.(DO NOT RUN A SIGLE PHASE MOTOR SLOWER THEN ITS RATED HZ, UNLESS YOU KNOW 100% WHAT YOU ARE DOING!!!! I tried it, my advise is, don't.)The down side: As long as it's powered, the fan always runs. That can be annoying after a while. I may mod that to run only when it's outputting AC. Relay, simple enough. I'm only only running it 60hz,110v anyway.

I used this to control the 240v 3 phase AC motor in my shop made belt grinder. I chose this model because of its 120v single phase input rating, expecting to have to upgrade it to get the full 2 HP out of my motor, and even ordered another Huanyang VFD rated for 220. Because I'd already had it connected I decided to plug it into the 220V outlet, and was pleasantly surprised to find that with minimal software setting modification: A) it turned on and runs and B) is harder to stall out when pressing a workpiece against the platen than on 120V. Best part is that it's effectively dual-voltage without doing anything special. It can output higher than line voltage to some degree - I have seen 130 3 phase output with a 110VAC single phase input. Double that for 220v.I knocked off a star because the manual is borderline garbage for someone who isn't already familiar with the programming, and because the screw terminals for the motor and power inputs are sized for 14AWG. I was able to get the 12AWG to fit, but it was very tight and I would have liked to have been able to terminate the ends with crimped ferrules. The rubber dust pads covering the holes in the underside of the unit also leave something to be desired - the one round hole fits a 1/2" clamping style strain relief for either the motor leads or power in, but the other connections are left to flap in the breeze. Not a deal breaker if you're mounting it in an enclosure, but if you're leaving it out then it's not enough.Do I regret buying this guy? Nope. Will I buy another of these when this unit dies? The jury's still out, but I'm closer to yes than no.

I really wanted a cheaper alternative to the more expensive units. I purchased the 110v/3hp, running a 3 phase 2.2kw 2.01 hp motor with 110v input from a standard wall plug. I took a chance on this due to some good reviews. I installed the VFD on a small lathe and I have to say that it performs very well. The manual should be rewritten by a technical writer because if someone doesn’t have any experience with VFD’s it could be challenging to setup. In this case it was a fairly simple project and the Huanyang VFD was a great alternative. The one thing that really took me by surprise is the responsiveness of their technical support and shipping time. Tech support answered questions within a few hours and shipping was 5 days! I can’t get service like that from the joint down the road that gouges me every time I walk in the door or call. Since it’s been installed I’ve really run it hard. So far so good! I’m happy all around with this unit and will be buying more.

ZERO STARS. It blew after 6 weeks of extremely light use. Return window closed and no way to contact seller. DO NOT BUY!!!

Very nice VFD controller, the number of parameters available for tuning is impressive and a bit imposing. I particularly enjoy being able to set precise values for maximum voltage and current, as well as the amount of time it will spend increasing the speed until it reaches the target RPM value. The latter means you can drive very heavy motors/devices that would otherwise instantly overload the controller, as well as preventing the motor from accelerating too quickly while adjusting the speed via the front control knob.It would be nice to have a more detailed display since it only shows a single value at one time (Defaults to the RPM), having voltage and current consumption would be very useful.FYI the application I'm using this controller for is to drive a 24V turbomolecular pump. The blade assembly is very heavy and without a very slow acceleration it trips the current limiting, so with the right parameters set it works very well with this controller.

Easy to program

A bit of a learning curve to wire to your specific CNC machine but the is jacket of info on the internet to find what you need. Easy to program. I’ll end up buying at least one more when I add variable speed to my lathe.