Re: [CAD_CAM_EDM_DRO] Gecko ERR/RES Handling

My 2 cents here:

My Dad and I are not very pleased with the Gecko error/reset handling
either.

I think there should be a separate output for the fault signal, and one for
the reset line. The fact that you have to build another whole circuit board
to handle these conditions is not very good design, in my opinion.

I also do not like the 128 step limitation on the fault condition. In my
little world of messing with this motion control machinery stuff, ( a
little world admittedly) the +_ 128 steps is marginal. I know Marris says
it is plenty, but I remain unconvinced. It is a pain in the neck getting
faults all the time while I am developing stuff, like my CNC plasma cutter.

I think there is an alternative, and I have ordered some in to try, but I
realize that this list has a lot of loyalty to Marris, (GECKO) and recognize
that he has helped many folks and has taught us all a lot too, so I offer
these 1cents worth of comments in hope that Marris would reconsider for
others who may feel the same.

Dave

----- Original Message -----
From: <wanliker@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, December 16, 2001 4:27 PM
Subject: Re: [CAD_CAM_EDM_DRO] Gecko ERR/RES Handling


> Thanks Tim, I was totally frustraded when I wrote the post last night.
too
> many conflicting drawings.
>
> I am wanting to use the Gecko G320/G340 FAULT/RESET MANAGER circuit, that
I
> have a drawing of. I assume that I can still use a STDT Center Off switch
as
> a reset, and Estop with that circuit, applying the voltage from the switch
to
> the common ERR/RES terminals. Is the ERR/RES terminal to subject to line
> noise problems, as it looks like it would be a good place to bring in a
stop
> signal from the machine EStop button.
>
> I have one servo and Gecko 320 breadboarded on the bench now, and working
> well.
> I am really impressed on how the servo works compared to a regular DC
motor.
> My step signal source is a bit slow, so can't do speed but it works, and
no
> Magic smoke came out.
> It looks like the servos that I have will be more than adequate for the
> Compact 5 PC lathe, I have not tried them yet on the Sherline mill, but
> hopefully soon. Have to make bushings for the small shafts on the motors.
> Might try to get them made tonight.
> bill
>
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