Dynomotion

Group: DynoMotion Message: 9834 From: toolhoarder Date: 7/22/2014
Subject: Can I use a 48V Regulated PS With my Setup?
Hi, I'm new here.

I am trying to pick a power supply for a Kstep/Kflop combination. I just found out that a regulated supply would be best, so I am looking for one. I want a lot of current on tap because I would like to have the option of adding a second board so I can hook a mill (4 axes) to the same system. The first machine will be a mini-lathe with two 425 oz-in motors. I do not plan to try to run both machines at the same time.

I am considering a 48V regulated supply that puts out 12.5A. My wall voltage runs 125 all the time, which is a little high. I am concerned that the supply may go over the 49.5V line and cause problems with the voltage clamp. I don't know much about that; I just know it's BAD.

Wondering if anyone can advise me. The motors I have now are Keling KL23H286-20-8B steppers. They are rated at 2.8A and 4.17V in parallel, and the resistance is 1.5 ohms.
Group: DynoMotion Message: 9843 From: Tom Kerekes Date: 7/23/2014
Subject: Re: Can I use a 48V Regulated PS With my Setup?
The wall voltage should have little effect on the output voltage of a regulated supply.  The voltage should be less than 48.5V actually.  Check with a voltmeter before connecting.  Some supplies have an adjustment potentiometer.

48V at 12.5A is 600W of power.  That should be sufficient.  Each Stepper should always use less than 100W.

HTH
Regards
TK

Group: DynoMotion Message: 9845 From: toolhoarder Date: 7/23/2014
Subject: Re: Can I use a 48V Regulated PS With my Setup?
Thanks again.