On our current machine (the gantry plasma machine) we are using 7i42 buffer 
cards with a 7i43 card and a custom firmware load from Mesa which has 4 
step/dir and 4 single ended encoder inputs.  We built a small board that 
converts the differential signals from our encoders to single-ended inside the 
electronics cabinet.  

I also have a small mill on which I used the 7i43 with a 7i47 daughter board.  
On that one I have three stepper motors (step/dir) and three differential 
encoder signals wired to it.

Tom

On Feb 17, 2012, at 7:24 AM, Erik Friesen wrote:

> What are they using for breakout boards?  I don't see anything from mesa
> that really fits.  ie encoder inputs and step/dir.
> 
> I see reference in the 7i76 to a switching power supply, is that built onto
> the board?  I suppose 40v would overload it?
> 
> On Thu, Feb 16, 2012 at 2:04 PM, Peter C. Wallace <p...@mesanet.com> wrote:
> 
>> On Thu, 16 Feb 2012, Erik Friesen wrote:
>> 
>>> Date: Thu, 16 Feb 2012 13:28:59 -0500
>>> From: Erik Friesen <e...@aercon.net>
>>> Reply-To: "Enhanced Machine Controller (EMC)"
>>>    <emc-users@lists.sourceforge.net>
>>> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net
>>> 
>>> Subject: Re: [Emc-users] More control board questions
>>> 
>>> How are these customers dealing with a stalled stepper, or is there any
>>> limits built in?
>> 
>> When you use encoder feedback, stalled step motor detection is automatic
>> (it causes a following error)
>> 
>> 
>> Peter Wallace
>> Mesa Electronics
>> 
>> (\__/)
>> (='.'=) This is Bunny. Copy and paste bunny into your
>> (")_(") signature to help him gain world domination.
>> 
>> 
>> 
>> ------------------------------------------------------------------------------
>> Virtualization & Cloud Management Using Capacity Planning
>> Cloud computing makes use of virtualization - but cloud computing
>> also focuses on allowing computing to be delivered as a service.
>> http://www.accelacomm.com/jaw/sfnl/114/51521223/
>> _______________________________________________
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>> 
> ------------------------------------------------------------------------------
> Virtualization & Cloud Management Using Capacity Planning
> Cloud computing makes use of virtualization - but cloud computing 
> also focuses on allowing computing to be delivered as a service.
> http://www.accelacomm.com/jaw/sfnl/114/51521223/
> _______________________________________________
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing 
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Reply via email to