Jon Elson wrote:
I include an all-electronic version of this in all my controller boards,
and users can add external safety controls as they deem necessary.
A latching relay is basically what you are looking for, it would then
need a separate reset button. The problem with making it
Neil Baylis wrote:
Yeah, I've seen some of these devices. You wouldn't think e-stop could
get so complicated.
Get lawyers, and even WORSE, legislators involved in the process, and
there's no limit to how bad it can get. If it has to absolutely stop
the machine in a safe manner, even when
Lots of over kill listed in this thread. First:
Don't use a PLC for this! This is supposed to work even if the electronics is
gliched. The system
is really simple and ultra reliable if you keep silicon out of it.
It only takes a hi-reliability multi pole relay and a high reliability
I'm looking to source an e-stop switch. I have some already with the
big red mushroom button that latches when you press it, and must be
turned to release. This is good. But what I want is a switch that can
also be operated by a signal from the computer. So if the computer
detects an e-stop
Subject: [Emc-users] Emergency Stop switch
I'm looking to source an e-stop switch. I have some already with the
big red mushroom button that latches when you press it, and must be
turned to release. This is good. But what I want is a switch that can
also be operated by a signal from the computer
neil.bay...@gmail.com
To: emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 1:19 PM
Subject: [Emc-users] Emergency Stop switch
I'm looking to source an e-stop switch. I have some already with the
big red mushroom button that latches when you press it, and must be
turned to release
: Neil Baylis neil.bay...@gmail.com
To: emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 1:19 PM
Subject: [Emc-users] Emergency Stop switch
I'm looking to source an e-stop switch. I have some already with the
big red mushroom button that latches when you press it, and must be
turned
in some of
the retrofits that I have done.
Have a good day,
Jim
- Original Message -
From: Eric Keller keller...@gmail.com
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 2:01 PM
Subject: Re: [Emc-users] Emergency Stop switch
My guess
- Original Message -
From: Neil Baylis neil.bay...@gmail.com
To: emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 1:19 PM
Subject: [Emc-users] Emergency Stop switch
I'm looking to source an e-stop switch. I have some already with the
big red mushroom button that latches when
, 2010 3:10 PM
Subject: Re: [Emc-users] Emergency Stop switch
OK, thanks. I guess they don't exist.
I guess what I'll do is to add a circuit that requires the e-stop
button to be pressed before a fault condition can be cleared. Then I
have no choice but to twist the e-stop before resuming.
Thanks
To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 2:01 PM
Subject: Re: [Emc-users] Emergency Stop switch
My guess is that a switch with an actuator in it would be so expensive
that nobody has ever bothered to market one. I think your best bet is
to have
and included in some of
the retrofits that I have done.
Have a good day,
Jim
- Original Message -
From: Eric Kellerkeller...@gmail.com
To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 2:01 PM
Subject: Re: [Emc-users] Emergency Stop switch
Controller (EMC)emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 2:01 PM
Subject: Re: [Emc-users] Emergency Stop switch
My guess is that a switch with an actuator in it would be so expensive
that nobody has ever bothered to market one. I think your best bet is
to have a self-powering
-
From: Neil Baylisneil.bay...@gmail.com
To:emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 1:19 PM
Subject: [Emc-users] Emergency Stop switch
I'm looking to source an e-stop switch. I have some already
with the
big red mushroom button that latches when you press it, and
must
Machine Controller
(EMC)emc-users@lists.sourceforge.net
Sent: Monday, April 12, 2010 2:01 PM
Subject: Re: [Emc-users] Emergency Stop switch
My guess is that a switch with an actuator in it would be so expensive
that nobody has ever bothered to market one. I think your best bet is
to have a self
Neil Baylis wrote:
I'm looking to source an e-stop switch. I have some already with the
big red mushroom button that latches when you press it, and must be
turned to release. This is good. But what I want is a switch that can
also be operated by a signal from the computer. So if the computer
I'm sure that Pilz, Faulhaber, Schaffner and a bunch of other outfits
have a device that will do what you want, in some manner. I don't think
I have ever seen exactly a red mushroom switch that would mechanically
activate, but these companies and others have safety-rated relays (for
about
12, 2010 9:57 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Emergency Stop switch
I'm sure that Pilz, Faulhaber, Schaffner and a bunch of other outfits
have a device that will do what you want, in some manner. I don't think
I have ever seen exactly a red mushroom switch
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