VFD Frequency Drive, Single Phase Input 110 VAC Three Phase Output 220 VAC Variable Frequency Drive, Motor Speed Controller, 220 V 1500 W AT5‑1500X

So far, this VFD is working perfectly with a VEVOR 2-HP 230V three-phase motor (also from Amazon) on my lathe. I have just three minor complaints: - The operating instructions that came with it are for models AT1 to AT4, which are all for 220V or 380V inputs. I received an AT5 (as ordered), which is for 110V single-phase input. So, none of the line connection diagrams in the instructions were correct for the AT5. I'm an electrical engineer, so it was easy for me to figure out the right input connections (actually, they are marked on the terminal block), but I wonder if some of the reviews saying it failed or tripped a breaker on connection could be due to connecting it to 220V single-phase input per the diagrams in the instructions? - It is working fine using the default parameters, but being an engineer, I wondered if I could fine tune it a bit by tweaking them. For example, change the startup time, which seems to be almost instantaneous by default. Alas, although the instructions provide an extensive list of parameters, they do not explain what any of them mean! A few are obvious, but others are not. Searching the web, I could find no explanation for these parameters. For example, what is 1st rising velocity? I don't want to fiddle with them unless I know what they are about, so I'm leaving them alone for now. - When you hit the stop button the motor does stop, but the unit remains live, even if you disconnect it from the mains. If you then press the run button, the motor will spin for a few seconds until it discharges the VFD. If you aren't aware of this behavior, you could be injured by the unexpected motor start or could be shocked by discharge of the still-charged DC section of the VFD. Edit: After some more searching, I managed to find explanations for most of the other parameter settings. I just wasn't creative enough in phrasing my queries the first time.

manual could be better, but overall quality is good and the unit works as it should!!

Nunca encontré una guia para conectar dicho variador por más que lo busque.tampoco.me enviaron un instructivo correcto propio del variador estoy molesto al respecto.

I built a 2x48 grinder off youtube and used a 2hp, 3 phase motor, 220v. This vfd was pretty much plug and play, no real programming needed to work with my setup. Would also work with a higher voltage 380v motor, if you change that setting. Even works on my GFCI outlet, perhaps the other reviewer had their outlet or motor wired wrong. Would buy again for projects that use a 2hp or less motor! It cost me just over a hundred on sale, which is a good deal if it keeps working. Physical measurements at the end of the video!

Very poorly written instructions. They need to hire some decent translators. Once you work a bit of trial and error you will find the unit works well!