I am looking at this VFD because I like the fact the control board snaps out and can be remotely mounted. It also has a pot built in.
https://www.amazon.ca/dp/B07T55DW7Z/ref=cm_sw_r_em_taa_htTPEb3ZCXMQA
This motor is also attractive for price.
https://www.amazon.ca/dp/B073F4NGN6/ref=cm_sw_r_em_taa_cBTPEb40XNRX9
But I am getting scared a bit from the various subteties I am reading about on this forum. Low speed torque, vibration, cogging, compatibility of the VFD software with the motor, motor design problems and so on won't reveal themselves until the units are on the bench and the money is spent. Are there any hints from the ads about compatibbility of these products. Contacting the vendor is useless. The sell a big list of products and don't know anything about any of them.
Shopgeezer: I've never had a problem with any of the 9 VFDs I've installed except 1, and that was off eBay from a China seller with the Huyang (can't recall spelling), where the first one had a rectifier capacitor blow up, so I returned that, and they sent a replacement that sits on the shelf, as a memory to not buy that namebrand.
My point about cogging was from the first VFDs I purchased that were Teco FM100. They are not of the vector design.
I see your in Canada, I don't know if this vendor will ship there, but they have packaged motors and drives. They are in New Jersey. This package is a 1.5HP motor with a 2HP Teco 510, that is a vector type drive;
https://dealerselectric.com/Package-NAT1-5-18-56-and-L510-202-H1-U.aspI've also had good luck buying used drives off eBay, BUT make sure they are 200V class, as the 400V class will not work in a home shop. Also make sure you can download a manual, as there are some vendors that remove manuals from their web site that are no longer in production (e.g. Rockwell Automation formerly Allen Bradley). And there are some larger drives that will not work unless powered from 3 phase, as they detect phase loss. Again the manual will tell you if this feature can be turned off. Once you get above 3 HP VFD size, you need to derate it to half the horsepower, this is from the limit of the input rectifier diodes, where powering off single phase can exceed their current capacity. I have a 7.5HP lathe, that I'm using a 10HP VFD to power and have never had an issue, as I never do crazy depth of cuts with high feed rate, and high spindle RPM. I have a table saw this is also 7.5HP and powered with a 10HP drive. Otherwise the Milling machines, small lathe, drill presses, bandsaws are all 1-2HP size motors. I've removed single phase motors and replaced them with 3phase because of the variable speed operation. On a drill press these are the sweetest thing when you can dial up the spindle RPM to match the SFPM of the cutting tool. Same with the lathe.
I have a VFD powering one motor from the early 1940s on my horizontal mill. In the early days of VFDs, the edge rate of the square wave pulses were so fast that they caused large voltages to develop from the inductance. This problem is gone as they control the edge rate on drives, to minimize the problem. If you have an old motor, and the insulation is of very degraded quality, you may end up with a short of a winding to chassis. But that old of a motor probably would fail with your normal power input.
The links to Amazon for motor and VFDs looks like a good setup. The inverter duty is mainly better insulation quality on the motor windings.
The other quality of VFDs, they produce a soft start, so there is no locked rotor amp surge. As well they control both acceleration and deceleration speed. I set up the deceleration to coast to stop. It can decelerate fast enough to enable a thread on lathe chuck to spin off. The default I've seen in my various drives is 5 seconds accel/decel.
