CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Thought I had it figured out!!

Posted by Ed Fanta
on 2005-06-22 12:42:05 UTC
Whoa there!! Steppers get the higher voltages not servos!! Servos should
be used with the same or lower voltage as its rating, sometimes a little
higher on a motor with a high resistance in the armature. Which Gecko
are you using?

pug_harley_corvette wrote:
>
> Hey Guys.
> I've been reading the archives both here and the other forum and need
> a
> bit of clarification or maybe just a simple explaination. I'm trying
> to figure out the voltage relationship for my future cnc setup. I
> want
> to use servos, gecko amps, and the associated power supplies. My
> question,......please help me understand the power supply size verses
> the servo voltage requirement (of course current requiremetns also).
> The geckos may utilize a supply voltage between 24 and 80 V.
> According
> to their power supply document, the power supply should be 3 to 25
> times the servo voltage. Well, I have 30 volt servos which draw .65
> amps (wimps I know but trying to source larger motors). I've
> procured
> a transformer which has a 50V ac output and high current (unknown,
> but
> this thing is a monster). That will give me a 70V DC voltage to work
> with. This means that I'll not meet the 3X voltage requriement for
> the
> servos and cannot tap off a higher voltage from the transformer with
> the geckos (80V max). Should I be trying to source lower voltage
> servos. I thought 30V was pretty low! Anyway, I need some help
> understanding how these things work.
> Thanks in advance and sorry for the elementary questions.
> slightly confused.....billyjack
>
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Discussion Thread

pug_harley_corvette 2005-06-22 12:28:33 UTC Thought I had it figured out!! Ed Fanta 2005-06-22 12:42:05 UTC Re: [CAD_CAM_EDM_DRO] Thought I had it figured out!! pug_harley_corvette 2005-06-23 03:50:01 UTC Re: Thought I had it figured out!! Andy Wander 2005-06-23 04:18:58 UTC RE: [CAD_CAM_EDM_DRO] Re: Thought I had it figured out!! turbulatordude 2005-06-23 05:19:14 UTC Re: Thought I had it figured out!! Ed Fanta 2005-06-23 05:24:28 UTC Re: [CAD_CAM_EDM_DRO] Re: Thought I had it figured out!! pug_harley_corvette 2005-06-23 06:33:22 UTC Re: Thought I had it figured out!!