MYSWEETY Single Phase to 3 Phase Converter, 2.2KW 3PH VFD 220V/10A 0-3200Hz Output Variable Frequency Drive Control Inverter for Spindle Motor CNC Speed Control

I had my doubts about this, and hesitated for weeks before pulling the trigger. I have a Bridgeport Knee Mill in my garage that requires three-phase electricity. It is a 3hp motor. Even after I received and opened the package I was filled with doubt, it is smaller than I expected and fairly light weight; I thought for sure my mill motor would eat this for breakfast. The wiring wasn't to bad, I called a friend for some pointers though, as I wanted it done right the first time. Use a tension retainer on your 220 input line, there is no way to attach the wire to the actual box. After I got it wired and plugged in I found a Youtube video that explained which parameters needed to be set for my motor and my application. It seems to me there are over a hundred different parameters, some nice ones such as; how quickly the motor spools up rather than slamming on at 100 percent. You can also use your own on/off switches in a remote location, again setting the appropriate parameters. I also like the 5v and 12vdc outputs at the top of the unit. I use the 12vdc to operate relays on the mill for various accessories. I also like the variable speed...very cool. You will need a brake resistor (not included) if you are using this on an application where the motor continues to spin at a high rate of speed after you shut it off. Make sure to buy the right size VFD for your motor. Also, it is 220volt output ONLY. You will not run 440ac out. Reconfigure your 440 motor for 220 if applicable. I highly recommend this product and will be buying another in the future.

I purchased this VFD for a 2” x 72” belt grinder I was building. The VFD and the motor were the first things I bought. When it came time to wire the motor to the VFD and turn it on it lasted about 90 seconds and then literally blew up(see pictures). I got on my Amazon account and it was past the return date. I contacted the company that sold the VFD and they were kind enough to send me a new control board for the VFD. When I removed the old control board I noticed that there is what I’m guessing is a bridge rectifier on the under side of the board that the legs were left on after soldering. One of those legs shorted out on one of the wires running to the coil on the top side of the board. So on the new board I cut the legs off to make sure it didn’t short out again. I’ve used it a handful of times now with no problems. Another useful tip for anyone in the United States, the settings for the VFD are all in the European standard. For example it is set for 50hz input and output. So make sure to go through the settings and set them for US standard and for the motor you plan on using. Read the directions for the motor type. Overall I’m happy with the VFD and how it is performing. As long as I keep the metal dust out of the VFD I can see it lasting a while. Going through the settings is easy as long as you have the directions to tell you what each setting is.

Installation was a bit of a pain because of the slots in the bottom of the case where the wires connect, I left them alone in case I have to return it, I didn't want anyone to have an excuse to deny my return due to voiding the warranty by cutting the plastic away. The terminals are fairly small so I modified some 10/12 gauge wire connectors for a beefier connection, 14/16 gauge wire connectors fit and will work but are too thin for this application IMHO. I made a 1/8" thick aluminum bracket to support the cable glands and cables, I didn't want to use a separate box to enclose this thing (which is not required by our local electrical code). I changed mine from the default 50 Hz to 60 Hz by changing parameters P00.00, P00.04, P00.05 and P03.09, then uploaded the new parameters as per the instructions. P03.09 is for maximum potentiometer frequency, it won't work without changing the potentiometer as well. The included instruction book is pretty fair IMHO. I just hope this VFD will last because it works great! Motor RPMs are spot on @ 60 Hz.

Wiring is very straightforward, single phase in, three phase out. Thats what I purchased it for, to run my new three phase bandsaw on single phase in my shop. I also purchased the on/off switch at the top, once power is connected to this unit there is no on/off to shut it down. I would imagine there is another way to turn it on/off using the the leads on the top but this was easier for me. I did not like the "fins" the in/out wires passed through at the bottom. So I made a steel box (and powder coated it) that mounted at the bottom with strain reliefs on both in/out. This way the leads cannot be pulled out.

The unit was east to install, once up and running it produced clean power on all three legs. The VFD seemed to solve my power needs on my bandsaw for approximately 5 weeks. I shut the breaker off when I don’t plan on using the saw, I turned the breaker on the other day and the VFD wouldn’t power up, I checked and it has power in and a very dim red light inside is lit up but nothing on the display and no output. I contacted Amazon and they said I would have to deal directly with mysweety so they sent me the link to do so. I have sent two emails and when I get a reply it is a link that doesn’t work. I had to buy another VFD to get my saw up and running for work but I would like this unit replaced under warranty if the company ever sends a unable link thought email. Unfortunately I have three of these exact VFD units in my shop and I went from being very happy with the product to wondering if my equipment will work when I need it to. I would recommend looking at other products from a different manufacturer just because of the way the customer support is through “mysweety”.

Very good product

Todo perfecto funciona sin problema es fácil configurar, de buena calidad y apariencia.

Works as desired. A bit jumpy at certain frequencies. No place to secure cabling. Instructions leave much to be desired of you're new at vfd. I'm using a 1 hp motor with a 3hp vfd though.

Bought for a 3 hp 10a 230v motor which is in spec but the unit refuses to drive the motor with any significant load on it, it spins it happily with no load. I get error 4 (short circuit) not a short circuit just too much amperage for the unit*