AC 220V/1.5kw 2HP Variable Frequency Drive,8A VFD Inverter Single Phase to 3 Phase Frequency Converter for Spindle Motor Speed Control(Single-Phase Input, 3 Phase Output)

I used the AT1-1500 2HP unit to power up a 1966 Bridgeport Series 1 1 HP mill. The motor was originally wired for 440 VAC 3-phase. I only had 220VAC 1-phase in my barn. I reconnected the motor leads for 220VAC. The unit worked flawlessly in converting 1-phase to 3-phase. I am an engineer and have installed many VFD drives. The instructions are somewhat difficult to understand. There several videos online that are helpful and the seller's tech team responded to emails within 1-2 days. There are a few things that the unit does not like. Most Bridgeports have a reversing drum switch mounted on the motor. My original intent was to power up the VFD with the run command at the same time. The VFD goes through a brief self diagnostic routine when it is first powered up. Calling for a run command at startup caused an Error 1 display. When I added a separate Off-Run switch, the unit functioned without error since there was an inherent delay between powering the VFD and switching it into run mode. Secondly, the unit did not work with the reversing drum switch. After switching the VFD to run, I actuated the drum switch and the unit tripped out on overload (Error 2). Positioning the drum switch in forward or reverse before commanding the VFD into run eliminated this. I removed the drum switch and replaced it with an aluminum junction box from Amazon. I changed the Off-Run switch to a 3-position Reverse-Off-Forward switch and wired it to terminals X4 and X5. The motor worked perfectly. I set the minimum Hertz (P07) to 60.0. Running an older, non-inverter duty motor at less than full RPM can cause it to overheat. A replacement motor is $1500. I am content to change the belt drive step pulleys. Lastly, because the AC sine wave current is generated by modulating pulses of DC current, a standard Amprobe meter will not read the correct input or output amperage. But, the motor amp draw can be displayed on the control unit.

Low price good product

Had to order another one because it stopped working on us about 7!months after we got it . But beside that it worked good

Would recommend sizing up for horsepower personally. We have a 1 hp engine on our Bridgeport and after reading reviews went with a 2hp and very glad we did. Works well no errors for drawing power. I will say if you aren’t electrically inclined you may need some assistance with wiring. There isn't a hold your hand manual set up, be prepared to do a bit of homework or ask your neighbor that is an electrician for some guidance! Love the variable speed as we can go even slower than the original belt driven motor if needed. All in all, a great option and I would purchase again. *** rated tech support as 3 for neutral as we did not use tech support.

Put in my lathe. Works great

great unit for the price! I used it for my 2x72 belt grinder and place this unit inside an ammo can to keep dust off it. Been in service for approx 1yr and still going strong. wiring was a breeze, buy with confidence!

Used a 2hp for my 1hp disc sander. Had to go up a size as the 1hp didnt have enough oomph for moving something hi torque. Works great though amd easy to program.

Got it working. Works so far. Would be cool to see videos on programming for even easier ease. Also, does anyone know what kind of remote controls work for this? It's probably just buttons into the external terminal and I just haven't learned it yet. Anyway, great product for the price.