Re: [CAD_CAM_EDM_DRO] Power Supply

>Ron,
>
>The white paper on the geckodrive web site has most of the answers.
>
>For the power supply 14 amps should be enough.
>

>
>Bob Campbell
>Bob@...
>www.campbelldesigns.com
>Breakout board
>THC board sets
>CNC router plans
>Stepper Motors
>VisualMill Basic
>----- Original Message -----
>From: "Ron K" <godsone@...>
>To: <CAD_CAM_EDM_DRO@yahoogroups.com>
>Sent: Friday, July 02, 2004 8:49 PM
>Subject: [CAD_CAM_EDM_DRO] Power Supply
>
>
>
>
>>Hi all
>>I have a question for the electronic guys out there .
>>This is something that I have disagreed with for a long time, but I
>>don't open my mouth until I have some facts to go with it .
>>( I'm the try it and see if it works type , not the work it out on
>>paper type )
>>
>>If I want to build a stepper control with the following specs how many
>>amps do I need out of the transformer !!!
>>
>>3 Motors , Slo-Syn 840 oz size 42 3.6V 6.1A. ea.
>>Using 3 Gecko 201 drives with no current set resistor ( set for 7 Amp
>>
>>
>max )
>
>
>>Power supply puts out 49.5 Volts at idle and 48 with all motors turning .
>>
>> From what I have seen on the list this should require something like 12
>>to 18 Amps !
>>
>>WEELLLLL I'm running this system on a Bridgeport clone called a
>>Wizard and it is set up as follows .
>>Power supply puts out 49.5 Volts at idle and 48 with all motors turning
>>. ( this is checked at the cap )
>>There is a single fast blow 5 amp fuse coming out of the capacitor and
>>then a 4 amp fast blow fuse to each Gecko .
>>I have never had any of these fuses blow so to me that would indicate
>>that the entire system is drawing less than 5 amps DC .
>> How can this be wrong ???
>>
>>In reality the 5amp fuse was a mistake I thought I had put in a 10amp but
>>
>>
>the system has been running like this for several months .
>
>
>>--
>>Ron Kline
>>
>>American Precision Ceramics
>>
>>
>>
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>Addresses:
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>OFF Topic POSTS: General Machining
>If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
>http://www.metalworking.com/news_servers.html
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>http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
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>NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
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