Yes, I was referring to spindle speed I forgot were talking about servos..
Somewhat, I know the definition of AC/DC as for what they do, not really. Regulated and unregulated, No, Ill look that up. The most training on electrical I had was when I was in the NAVY 20 years ago, but haven't worked with is sense.
.Is there an existing original power supply?
No. I do have 2 xtra power supplys but its 12v and 24v. The power supply I do have are AC to DC.