Re: [CAD_CAM_EDM_DRO] Re: Maxpro software

Terry,

IBM did a 25-36 pin cable, as "centronics" compatible printers usually
have the 36 pin connector. You don't have to worry about that. Just
the 25 pin connector! My MAXNC-PRO "data sheet" shows xyz
step/direction using pins 2-7, and a ground on pin 18. Default for the
software is to ignore limit switches. Connect ground and ground
signals, try to see if you can detect steps on the step lines.

I connected my scope to pins 2 (x step) and 18 (ground), and I get jog
pulses. I connect 2nd scope probe to pin 3 (x direction), and I see
MORE the a simple level shift for + and - direction. I will have to
investigate further. If you leave the direction line open, the stepper
should at least move ONE direction. Looking further, I don't see
anything on y or z. What gives here? gotta look some more.

I haven't used the step/direction "MAXNC-PRO" yet, I'm using the
4-phase. I'm trying to get four SD200 stepper motor driver modules
powered up, *THEN* I can use this vers. of MAXNC.

Well, I'm off to a club meeting (Amateur Radio), so I'll see you later.

73's

Alan
KM6VV

PS. Ron if you're reading, any other ideas?

Terry Ackland wrote:

>
> Alan,
> I have been trying to use the 25 pin port. The pin out documentation
> that came with the software only mentions 25 pins! The Maxnc
> 145onz/in
> retrofit kit I purchased just over 2 years ago has a 25 pin port on
> the controller and I connected it to the printer port on my computer
> which was also 25 pin and it worked perfectlyfirst time! None of the
> old computers I was using or intend to use have 36 pin ports.
> I'm confused, Terry
> --- In CAD_CAM_EDM_DRO@egroups.com, Alan Marconett KM6VV <KM6VV@a...>
> wrote:
> > Terry,
> >
> > Hang on! I've got it at home, but I don't get home 'till about
> 10:00PM
> > pacific time. Tonight/tomorrow I'll check a few things out for
> you.
> Do
> > you have a simple 'scope? If so, you could look at the 6 s/d
> lines.
> > You will also need "several" grounds. Look at the board schematic
> or
> > connection diagram and find the ground line. As I recall, pins
> 18-25 on
> > the DB connector are grounds. You ARE in the parallel port
> connector,
> > and not a 25-pin serial connector, I assume. Anyway, you should
> see
> the
> > pulses and direction levels on the connector, if you issue a SLOW
> move.
> > Use ground(s).
> >
> > Seqset.exe is not needed, because MAXPRO (s/d) just needs to
> generate
> > step pulses, not the 4-phases needed by their simple driver board.
> >
> > More later
> >
> > Alan
> >
> > Terry Ackland wrote:
> > >
> > > Is anyone familiar with the maxpro software? I am trying to get my
> > > board up and running and the scant documentation says that to set
> the
> > > programme up after installing, TIMESET is run to calibrate the
> > > computer speed and SEQSET is then used to find the sequence of the
> > > motor leads. Well, I do not have the programme, SEQSET.EXE! so
> this
> > > could be my problem?
> > > Terry
> > >
> > >
> > >
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