Re: [CAD_CAM_EDM_DRO] estop switches was Re: Advice needed - Mariss' e-stop circuit

Guys,
Although the applications are slightly different, I have been using
E-stops in designing conveyor systems for over 30 years. All required a rope
or cable down the length of each conveyor section, so that it could be
actuated from anywhere down the length, and from either side, but had to be
reset at the switch only.

Marv Frankel
Los Angeles

----- Original Message -----
From: <ballendo@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, February 12, 2003 4:09 AM
Subject: [CAD_CAM_EDM_DRO] estop switches was Re: Advice needed - Mariss'
e-stop circuit


> Dave,list,
>
> Most safety standards REQUIRE that the estop NOT be momentary...
>
> That is why most switches sold as estop require turning the face of
> the knowb to reset. Older switches could be pulled out, but newer
> safety regulations have made these obsolete on comemrcial equipment.
>
> Hope this helps,
>
> Ballendo
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude
> <davemucha@j...>" <davemucha@j...> wrote:
> <snip>
> >also, the e-stop is not required to be a momentary. as long as it
> >is open the units will not run. so it could be a hard off.
>
>
>
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