Hi guys !

I've found a brushless AC servomotor at the scrap yard, I don't know if it's any good, it came without the encoder and I have no way to test it.

Please, advise about testing procedures and how to test run it without a driver board if possible, it has four wires one of which is connected to the housing the other three go to the windings...the only board I have is for a PMDC servo...I have a multimeter and three phase current.

Here are attached the pics of the same motor as mine, look at the name plate.

Here is the link to the manufacturer's datasheet https://blsautomation.com/pdf/Unimot...chure_ver2.pdf

The guy at the scrap yard tested it for less than 20seconds on three phase 380V, the motor started turning and knocking on the ground almost flipping on its side...is that normal ?

Any help/advise is welcome !

Thanks,
cnc2.