WS55-220 Motor Driver Controller DC 48V 500W CNC Brushless Spindle BLDC Motor Driver Controller

I initially hooked this controller up to 24v and tested it on a couple different motors, and it bench-tested well. I then hooked it up to a 48v power supply (dialed down to 45v), and the LED flashed once briefly, then no other signs of life. I hooked it back up to my 24v supply, but it was obviously dead. Returned. I will ONLY purchase stuff like this as Prime, specifically because of situations like this. If I order another one, I feel like I would be playing Russian Roulette by hooking it up to 36v. Feeling lucky, punk?

This is advertised as being compatible with both Hall Senor or without. However, you CANNOT hook up the Hall sensor wires as there is NO PROVISION for the red Hall V+ wire. If you look at the diagram from the manual, and compare to the pictures you'll see the missing pin out. It is simply not available. I've tried contacting the supplier and got NO answer. My guess is that millions of these were produced and distributed and now they have no choice but to try to get rid of them regardless of the flaw. These are probably sold for pennies on the dollar to mindless distributors looking for cheap junk to sell. They neither know about or even care that its faulty junk. Good luck trying to get your money back or any help with these.