Re: EMC/STG II homing problem

[Maximilian HEISE <heise-at-univ-tln.fr>]

Hello EMC folks,

I while (~few months) back I replied to somebody about the same problem. 
Has anyone checked my comments, I was about a return value not being 
checked in emcmot.c, I think it was tpAbort in one of the homing phases.

I am sorry than I can not provide more info, but I will not have access 
to my computers for I will stay half a year at the university of Toulon, 
France.

Regards
Max


Melvyn J. Marple wrote:

> Hi Les,
> 
> This seems to be a problem that comes up from time to time. I discovered the
> same (or what appears to be) problem almost two years ago when interfacing
> EMC
> and a STG II card to a Hurco mill. It seemed in my case that the index pulse
> was not recognized by EMC. Just as in your case, everything hardware-wise
> seemed to be there. My work around was to un comment the NO_INDEX_PULSE in
> the extstgmot.c module and recompile. This makes the software ignore the
> index pulse
> for homing and therefor a little less accurate. I still would like to see a
> solution
> but have not seen anyone put forth such. See the thread around the 9/21/01
> for more.
> 
> Regards, Mel    
> 
> 
> 
>>[Original Message]
>>From: Les Watts <leswatts-at-rabun.net>
>>To: Multiple recipients of list <emc-at-nist.gov>
>>
>  > Date: 3/6/02 3:49:41 PM
> 
>>Subject: Re: EMC/STG II  homing problem
>>
>>
>>Hi George!
>>
>>Yep I tested all inputs to the card with the scope.
>>Got good signals. I expected this as the diagnostic program
>>sees the switches and index fine.
>>
>>I have roughed in pid an run some g-code programs today
>>with no problems.
>>
>>It is not the end of the world if the homing function does not
>>work.... but it's not good!
>>
>>I can drive the axes into a hard stop at low gains and restart
>>EMC for the time being to get a home.
>>
>>Gotta find out what's wrong.
>>
>>Les
>>
>>Leslie Watts
>>L M Watts Furniture
>>Tiger, Georgia USA
>>http://www.rabun.net/~leswatts/wattsfurniturewp.html
>>----- Original Message ----- 
>>From: "George P. Tecos" <george.tecos-at-panautosys.com>
>>To: "Multiple recipients of list" <emc-at-nist.gov>
>>Sent: Wednesday, March 06, 2002 2:20 PM
>>Subject: Re: EMC/STG II homing problem
>>
>>
>>
>>>   Hi Les:
>>>  I have been reading your e-mail and I sympathize with
>>>the problem of homing. I do not know if  this can help you
>>>or not. Install your scope at the inputs 47, 39 ,31 and try to
>>>close or open the home limit switches at that time observe
>>>if the states of the inputs change ;if they do, then maybe you
>>>have to check the software.Just an idea.
>>>Good luck.
>>>George Tecos
>>>
>>
> 
> 
> 
> --- Melvyn J. Marple
> --- marplem-at-ix.netcom.com
> --- EarthLink: It's your Internet.
> 
> 
> 
> 
> 


-- 
Maximilian HEISE
max.heise-at-gmx.net, heise-at-univ-tln.fr (02.2002->08.2002)
Student Mechatronik/Automatisierungstechnik/PDV
FHT Esslingen - Hochschule fuer Technik
PGP Public Key from:
http://www.fht-esslingen.de/~mahemt01/pgp50i.pub or any keyserver