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)

Part arrived as promised. Haven't had time to install. Probably be another 6 weeks before my schedule opens up.

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

Super easy to follow instructions for setting up. The programming takes a bit of know-how. Fits well in an ammo box to keep it dust-free.

Like the title suggets?, What am i missiin here:1. I turn on the device for the first time and i do a factory reset so i can configure all from scratch. Since is the first time i turn on the device i can test everything, the potentiometer is the default one to be used. BUT after i turn off the device and later plug it in again, the pontentiometer max is 19 hz, no matter what parameters i configure, i'm on america so 60 hz in my case. I have to increase / decrease the hz using the buttons and i can go from zero to 60 hz and viceversa without problem, but when it comes to the pontetiometer i cant go further than 20 hz. ALSOOOOOOOOOO, the second unit i bought happened the same think. The first time i turn it on i can use the pontentiometer fully with no issues, the problem starts when i cut the power and later turn it back on again, and same thing, it doesnt go more than 20 hz. DEFINETIVELY the deveces is doing something its not suppose to do.2. Both devices too, the brake time, it is by default 2.5 seconds, and i reduce to use example 1 second, it doesnt do anything, i configure the parameter to use the brake time and later configure the time of the brake, its always the same 2.5 s, and yes, im using the brake stop mode on P12 with the value of 2.If i use the Intertial stop it works, if i use the inertial stop i suppose it works because it stops at 2.5 seconds, and if i use the Emergency brake, it stops right away, fully stop. But if i want to use the BRake stop so i can configure how much time i want to stop from fully speed to 1 second it doesnt do any change, its on 2.5 s default.What am i missing here.?

Take a chance, and take your time installing. The first one I received did not light up, so I was a bit concerned. But I have had good luck so far , so I opted for a replacement. The replacement came the same day and it did not fail to perform. I have been researching VFD programming for 3 phase machinery for a week. After changing every hertz value to 60, I powered up the spindle and watched it slowly creep into a full rotation speed and upwards to the fired speeds. The initial install is basic , I have not wired in my momentary switches for direction and stop. I will also add an external tach on the machine. But that is in the future. All in all it was worth buying, my machine is only running a 3/4 hp 3 phase motor. I will eventually need something bigger , but for now this is great! Compared to the sounds of machinery I think the VFD is quiet

THE GOOD:- It worked when powered up!- The parameters were preset pretty decently for my drill press.- It is a simple VFD with few settings to worry about but still has the basic features needed.- Far less expensive than big name VFDs.THE BAD:- It is not safe for facemounting without a box/enclosure. This was a big deal for me. I was working with 10 AWG SOOW and my older unit (a Delta) was set up to accomodate with appropriate cable clamps meeting code so the individual conductors were enclosed at all points where the outer jacket was stripped. In order to safely fixt this problem, I had to mount the VFD inside of a UL listed electrical enclosure.- The wire terminals were too small for the appropriately sized conductors. Could I get #10 wire in place? Yes, but it was a job. The terminals have a wire clamp similar to what might be found on a NEMA plug, but it was VERY difficult to get the wire into the clamp without a terminal end. As others noted, the terminals are not big enough to accomdate a forkl terminal much less a ring. I ended up stripping the jacket and soldering the tightlest twisted conductors so no loose strands would create an opportunity for arc or short.THE UGLY:- I remain apprehensive given the comments others have made about the unit failing soon after installation. Only time will tell but it would be nice to have a little confidence in the product.

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.