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

OK, lets try this again from the top.... what I need
to know is which pin of the parallel port the users
of various software would 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.

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. As a matter of fact
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, or if you have trouble posting to Yahoo,
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.