I needed to power an old 5hp, 3 phase radial arm saw. Connect the two 120V hot lines and ground coming in from the panel, then connect the 3 single phase lines on the output side, just as it shows in the picture, and your done. I still need to optimize speed and acceleration but need to get a tachometer to do this first. Setting parameters in the firmware is easy and the instructions are simple to follow.

First time I've ever needed, bought or installed a VFD. I bought this to power a 3 phase surface grinder in my home shop. Will only ever be set for standard speed so didn't need lots of features, but did want it hooked to original start/stop switch on grinder.

Looked around awhile before ordering and solicited lots of opinions on machine shop boards. I had actually settled on an automation direct GS2 that about 2x the cost, but they were out of stock and not being fulfilled for another month. Almost bought the Teco, but didn't like the open sides on that or that the wiring stuck out the front (rather then the bottom like the Lapond). Bought this one after reading the reviews, seeing the attached files on changing the frequency from 50-60 hz and wiring in the original start/stop switch, and obtaining the manual from the website and reading it.

Wiring the VFD was very simple. A bit of a struggle to get 2 ground wires under the short screw, but found a longer one at the hardware store. Wiring inside the grinder a little bit of a puzzle since you are bypassing the original start/stop switch, but figured it out on first attempt. Also identified 2 terminals from the drum switch with a multimeter that could be used for the new wire to the VFD, so ran that.

Never have programmed one before; reading the manual it was a bit intimidating at first. Like others said, read the manual a couple of times on how to program it till it sinks in. The little manual that comes with it (about 3 x 4 inches) has text way to small for these eyes to read, so the pdf version from the website is the only way to go. I wrote all of the parameters I thought I needed to change to set on a piece of paper, and quickly set them as required in about 15 minutes. The start-up did auto find the remaining motor parameters.

Ran well from the beginning (originally not hooked to start/stop switch). Variable frequency knob worked good to change the speed. I settled on 15 sec ramp up and down settings. Then added the start/stop switch wiring and reset 4 parameters. Works great off the original switch. The fan only runs when the start/stop switch on the grinder is on. Shuts off a few seconds after I turn the grinder off, even though the VFD is still plugged into the wall. I can't hear the fan over the grinder motor anyway.

I installed it directly to back of the machine, then bent up a metal shield above it to keep dirt/dust out/off it. Bought 2 conduit clamps to clamp the (2) 220 cables to the back of the grinder so can't be ripped out of the VFD. Is not mounted inside of any other enclosure, and no external disconnect switch. When I am done using it I unplug the cord from the wall (like my other 220 single phase tools).

Have used it about a month for ~ 10 hrs so far. Working well. Have to see how long it lasts. if it keeps going I would not hesitate to buy again for future machine. Ended up being far simpler than I thought from reading other reviews.

If I end up needing to power any more 3 phase motors, I'll very likely buy another one of these.

After skimming the first few section of the manual and the tables of settings registers, it turns out the what is needed to set this up is to work through the registries, one by one, read the manual to see what needs to be entered and key stuff in. The first section was easy to figure out, most of them had usable defaults out of the box and all the ones I need to tweak had clear documentation. The second section was a little less clear but consisted mostly of copying the right numbers off the motor face plate and then using the "auto tuning" as described in one of the prior sections. After that, it just worked. I'm still expecting to have to do some tweaking to build a better control panel but, from the looks of things, that will be reasonably simple to do.

This product doesn't really seem to be targeted at a consumer market but rather an industrial market. As such, user-friendly really takes a back seat to capability. That said, it's not realty user *un*-friendly as much as intimidating. And it seems to be a very configurable device and appears to have way more capability than I'm likely to have need for.

My only real complaint is the spacing on the power terminals. The nameplate on the 2.2kW version lists it as drawing 23A, but the screw terminals for the hookup are rather closely spaced for 10 gauge terminals, even 12 gauge terminals were a problem. I ended up needing to forgo crimp on terminals, flatten my wire slightly with a hammer and bend a hook to go around the screw. (BTW: math says it can't pull more than 10A steady state, so it might be viable to use 14 or even 16 gauge, but I didn't want to risk that.)

This is a really great little VFD. I bought it to drive an early 50's Rockwell Delta Unisaw that had a 2 HP 3phase motor. Removed the mag switch (you don't want a switch between the VFD and the motor) and wired L1->"U", L2->"V", and L3->"W". In my case, I also had to upgrade my original power cord as it was just too small for what this VFD is rated for. Plugged it in and it spun up! (albeit pretty slow).

All I can say is read the manual. Then read it again. Then play with it and read it a third time. The manual is awesome for this kind of part and its origin. It's pretty thick and you think that's due to multiple languages, but nope, it's all english. There's that much coverage of functions in there.

So all in all, I was very impressed with the price, function, and documentation. As others have said, the fan noise is pretty loud, but it's quieter then the saw it's running. Would totally buy again if I get another 3 phase machine.

I am using it for a lathe refurbishment project. It works well and I recommend it. I had an issue with what I thought was the drive but turned out it was my overcurrent protection device. I contacted the company for support and they were VERY helpful and responsive given the time zone differences. They even helped with configuring the drive for future external i/o I want to implement. 4 stars because the manual is printed in tiny font and is quite complicated for someone not familiar with this type of control. Also, there is not a built in fwd/rev button on the remote keypad which to me would be a basic function. you can program the direction but that is cumbersome. I will be adding a remote fwd/rev switch and is one of the items the tech support helped with. Overall a nice unit and I hope it holds up over time.