AC 220V/4KW 6HP Variable Frequency Drive,20A VFD Inverter Single Phase to 3 Phase Frequency Converter for Spindle Motor Speed Control(Single-Phase Input, 3 Phase Output)

The Manual takes some getting use too. Other than that it seems to work as promised. I had to up the horse power of the motor as I would get an error on the vfd when it reached its max. I use it on a 100 plus year old metal lathe that was originally run off a line shaft. It powers a three phase 4 hp motor. Youtube videos were helpful in learning about vfd and setting them up.

I was all but given an old Powermatic 5hp Model 66 table saw. It was in good shape, other than having sat for 5 years. It is wired for three phase 220v/460v, which is why i got it for $300. I knew about these things, though, so i jumped at the opportunity. I'd read about VFDs, but this the first time i've used one. I ordered the one specified for 5-6hp, i read the instructions twice, watched the youtube vids, and wired it up. I wasn't 100% sure of the wiring, but it was easy. Incoming 1PH 220v ground is the first connection, then the two incoming 220v hots, then the three motor wires black, red, black, L to R. In short, L to R, 1st post two x green(grounds), 2nd 220v in, 3rd 220v in(colors don't mater here), 4th black motor wire, 5th red motor wire, 6th white motor wire. I can now run the saw from the vfd, adjusting most anything. Whisper quiet! Amazing power through 3" thick Bubinga, i can feed it at any speed. This product has changed the way i see machinery. Three phase is an opportunity, now.

This vfd left a little to be desired. The programming instructions are brief. I couldn’t find out how to use my existing power switch, I kept getting an overcurrent error. I had to run straight to the motor and use the vfd as the power switch. So far it’s working but it’s still day one.

There are 2 major things that I can't trust with this VFD. I've had mine for over a year and just now trying to program it. I have successfully installed a similar VFD with confidence and it's been performing fine for a few years without any attention. The 1st most obvious is the product description says it's a 5HP and 6HP VFD. The 2nd thing is that P64 is completely without mention. When I enter different values in P64 it changes the VFD hardware state. Some values change the display between C & F for temp. Change P64 and the fan will go off or on. Or I hear a big relay click or a small relay click. I simply cannot trust this VFD on a submersible well pump without knowing exactly what value of P64 won't cause harm to the pump. This is nonsense...

Easy to set up without million parameters to confuse low iq maintenance guys.