RE: cncpro/microkinetics controller

Carl;

The MK drivers have optoisolated inputs, thus they require an external 5V
source to drive the transistors in the optical couplers that feed the step
and direction signals to the drivers. I recall someone saying that
interfacing CNCpro to the MK drivers required some resistors or something at
the input interface. Anyway, I plan to try the connection tomorrow if all
goes well. Will let you know what I find on Thursday.

Doug

> -----Original Message-----
> From: carl bruce [SMTP:carlcnc@...]
> Sent: Wednesday, December 15, 1999 6:58 AM
> To: CAD_CAM_EDM_DRO@onelist.com
> Subject: Re: [CAD_CAM_EDM_DRO] cncpro/microkinetics controller
>
> From: carl bruce <carlcnc@...>
>
> Peter
> thanks, I haven't had too much trouble with MK's stuff. Occaionaly[using
> their software] on startup the X motor will not
> reverse,since I am woefully inexperienced with electronics,I have never
> pinpointed the problem.
> Their software is way behind CnC Pro as a controller so I am switching
> over
> Here it gets really strange! Cncpro uses pins 2-9 for step and dir. MK's
> controller uses 1-8 for "incoming" signal to drivers.
> So I used some breakouts to avoid "1 from printer card[follow me?]
> I can control any two axis as long as I don't use pin 1or 2 going into the
> driverack.
> I have come to the conclusion that "driverack" pin 1 or 2 has what you
> guys refer to as dirty power.
> If I reconnect to MK's card and software all is fine! It's really got
> this old carpenter confused
> Any Ideas??
>
> Thanks again
>
> PTENGIN@... wrote:
>
> > From: PTENGIN@...
> >
> > In a message dated 12/13/1999 7:58:49 PM Hawaiian Standard Time,
> > carlcnc@... writes:
> >
> > << Has anyone had success interfacing CNC Pro
> > with Microkinetics controls?
> > A couple of us have been working at it and have trouble with "X"
> > axis.
> > Pretty well convinced that the problem is NOT in software.
> >
> > Thanks
> > C. Bruce >>
> > There are a lot of small problems with Microkinetics stuff. What
> specific
> > problem is hounding you today? Give us details of your setup. I've
> traced
> > most of my problems to dirty power and cross talk. I used .01 uF caps
> across
> > the active low step and dir lines and ground. I have a pretty smooth
> system
> > but am still using the stock optistepper setup. I assume you have tried
> > swapping X and Y or Z to confirm the problemis hardware and not
> software? Do
> > not hit limits when cables are swapped because many controls will not
> look at
> > limits from different axis!
> >
> > Peter
> >
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>
> > Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
> discussion of shop built systems in the above catagories.
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> bill,
> List Manager