Re: question for potential Gecko 320/340 users - updated

OK, I have confused things enough... lets try this
again from the top.... I was hoping to learn
from the users of various software packages who
want to use Gecko step-servos:

On which pin of the parallel port would you prefer
to have the Gecko step-servo drive's fault signal
presented? Different software may expect different
things and I wanted to make life easier for all
concerned by switching the signal accordingly.

What is already determined:

1) The circuit is set up to work with the current version
of the 320/340 which provides for paralleling the fault
outputs.

2) This is not an emergency stop system. That is properly
done in hardware outside the PC, preferably with failsafe
devices such as normally closed switches and relays.
The Gecko drives will stop (all of them if the fault
signals are wired in parallel) without any aid from
the computer. All that is going on here is that the
PC is being told what happened.

3) It will be possible to also present a signal from a
contact closure (think hardware emergency stop relay)
on the same pin of the PC's printer port. This is
because the board will logically 'OR' the special input
for the Gecko fault input with the corresponding regular
contact closure input.

It would be useful to hear from users of EMC, Master5,
TurboCNC, CNCPro, MaxNC, and any other systems. If you
prefer you can reply to stevesng (at) newsguy (dot) com.

Thanks,
Steve Stallings

> Jon wrote:
>
>Steve Stallings wrote:
>
>> Oops... reading my own post, it was confusing....
>> The feedback that I am referring to is the FAULT
>> signal, not encoder feedback signals.
>
>Ah. You might look at my current scheme, see the first
>schematic on http://pico-systems.com/EMC.html for the
>entire emergency circuit.