HUANYANG VFD Variable Frequency Drive 7.5kW 10HP 220V (GT-7R5G-2)

First I bought the 4.0kW to supply an old Bridgeport. It has performed flawlessly right from the start, at this time 15 months later. Five stars for that one. After that initial positive experience, I bought the 7.5kW to supply an even older lathe. My mistake was ordering it months in advance of when I knew I'd have the time to install it, so now Amazon support has long expired. This second one does not power up, at all. Error codes? It does not even turn on, no lights, no output, nothing. Is it possible I installed it incorrectly? Maybe, but I installed the first one perfectly, and the second one the same way. Tested on different circuit, still nothing. Zero stars for this one, so we're averaging 2.5 stars now. The company claims great support for a year after the sale, and I've read of some positive experiences. It's been a couple days now with no response whatsoever, so now I'm dropping it to an even Two stars, and ordering a new alternative from a competitor. Since the installation is all ready to go now, I'll know if the next one functions immediately upon delivery, solidly inside Amazon's support window. UPDATE: It took several days to get a service response, but after only a couple exchanges, they volunteered to replace the faulty unit. The replacement works perfectly.

Got 10hp. On single phase 220 input its giving around 5.5 kw. To have 10 hp you need 3 phase input. But for my 5.5 kw motor its works good. I use single phase input and recive 3 phase output. This have a lot of parameters inside for different motors. Make sure you program your. Because it may not give you proper performance. Lets say you can program this for spindle motor that can give 30k rpm.

I'm currently dealing with the breaking resistor ...scam? I don't know what the deal is but after many emails back and forth I was told the top of their line 7.5kw model is the only one that comes ready to accept a resistor and so I shelled out the extra cash for it, many emails later i was told a 1000W 75ohm resistor was acceptable for this unit.. with everything wired as per their videos I hit start and let the bandsaw get up to speed, as soon as I hit the stop button it VIOLENTLY EXPLODED with my hand on the unit! sparks blew 3 feet out of the side vents in both directions. First I was told the problem was that my motor had to be three phase so I sent a photo confirming it is indeed a three phase motor. next my wiring was wrong so I sent photos of my wiring only to be told it was wrong with advice to connect it exactly as I had it. Finally, after sending a home video showing all my connections and terminations I'm told I connected my resistor wrong.. get this.. "I should connect to the brackets that hold the resistor in place instead of the coil terminals" What!? that sounds like an expensive jumper and not a resistor. the unit was actually running my bandsaw but if breaking is not a viable function why sell it as having it and then run me in circles when it blows up!? I'm told they're sending another unit, if they do I guess I won't try to use a breaking resistor as I can't get useful or accurate information from the source. I've seen videos of these units with a resistor working, was I given bogus information on the resistor value, can anyone confirm? I have a 220 3hp 2.2kw 60hz 9.1A motor in delta configuration running a 24" bandsaw.

Excellent VFD. I’ve been using it for a while now and it works great. It works with my 3hp engine and with my 10 hp engine.

I used the VFD to power a 7.5hp 1950’s 24” wood planer and it worked great. I did have a problem a year later but within the warranty timeframe. I contacted them via email and they worked with me to diagnose the problem in short order and sent a new VFD free of charge. Very happy with the results and the product.

I have 4 of these VFDs of various sizes running different pieces of equipment around my shop, and I'm extremely happy with how they have performed. No issues to date, the oldest is probably 4 or 5 years and I might have to replace the fan. Also I'm very happy the newest ones only run the fans when the equipment is running and automatically turn off after a minute of stopping the machine. The manual can be difficult to understand but there are numerous YouTube videos to help you get them setup. If you are in need of running a 3 phase motor on single phase these are a no brainer, and make operation a lot more pleasant with soft start of motors, variable speed control (while maintaining torque). I would keep these in the machines at this point even if I had 3 phase power.

1. Very bad quality of soldering, self modules are ok, but final assembly is terrible. 2. I set two stars only because it is works with basic operations like 3 wire connection. 3. I lost 4 work days to program it for complex task with stopping motor by overcurrent fault. Internal amp meter lies more than 10%, the firmware got glitch and set random frequency range, I did everything even power off it many times (finally when was 5th day of my suffering I found out I made power off not long enough) when I kept 10 min power pause the glitch magically has gone, and it happened several times, I can not trust such device and setup it for customers and provide a warranty for my work, they will sue me.

My lathe has a 7.5hp 3phase motor that has been down for about two years now due to the last VFD I had that went bad. I had trouble finding one and finally this one worked. At first I had it wired through a rotophase and it didn’t like that as it kept reading an over voltage error. I wired it up with single phase input and voila! Works amazing. Programming took some trial and error but finally it’s working great thanks to the multiple YouTube videos available for this particular unit.

I used this to power an old 10Hp metal turning lathe. We don't have 3 phase power in our garage and I didn't want to get a phase converter. This VFD was easy to set up, cheaper to buy than a phase converter, and made the machine safer to operate. I am only running the lathe at 60Hz for now, but tested the variable speed and it works great. Nice and smooth. I may be back for another VFD once I get my hands on a milling machine.

Strong inverter. Used 10 HP for our 5 HP motor (mill) - best fit. Excellent customer care. Spoke each day (would take a day to respond as we are in Canada) but received detailed messages and videos so we could fine tune our needs.

Worked well when installed on a 7.5 Hp motor 3 phase motor. Ran on 230 volt single going in to supply 3 phase out at 60 Hz, no variable speed used. Unfortunately it only lasted 1 year with the panel dead, no output. Motor only pulled 15 amps under load and bought this oversized due to running on single phase. Will be replacing with something different.

It's a good unit but it will take you a while to figure out what the wiring and programming instructions are telling you. Search for youtube videos for easier directions. It would be nicer if this 10hp unit would have larger terminals for the power and motor leads. I had to snip some strands to make them fit.

We are running two exhaust fans and it did the job