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Emergency Stop on Super 7 Industrial stand

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Steve Bower30/11/2017 23:09:16
42 forum posts
2 photos

I've a single phase Super 7 with industrial stand, and think its advisable to fit an emergency stop button (Screwfix sell them). Any advise on the wiring? I was thinking of mounting to the right of the control panel, on the angled section so I could knock with my knee if necessary. Does that seem appropriate?

Brian Sweeting30/11/2017 23:37:56
398 forum posts
1 photos

You can wire up more than one switch if you want to.

Personally I would fit a contactor in a box with the knock off button(s) wired through the contactor coil circuit. The lathe, or workshop, power supply going through the contactor.

Edited By Brian Sweeting on 30/11/2017 23:38:58

Emgee30/11/2017 23:39:41
1346 forum posts
212 photos

Hi Steve

I take it you have a push button contactor type starter fitted so it will be a case of wiring the new stop switch in series with the existing stop circuit, so 2 conductors from the starter control circuit to the EM stop, possibly also an earth (cpc) if new stop is metal cased.

Emgee

Bazyle30/11/2017 23:40:07
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4891 forum posts
195 photos

Do you have a no-volt-release switch (NVR) ? Some incorporate the emergency stop for no extra money. In an emergency will you think of using your knee for anything? I have been meaning to make a system based on a string or bar across the top of the lathe forward of the bed such that if I had a stroke or was pulled in by my hair/glove/tie/clothing I would fall on the bar

Steve Bower01/12/2017 01:16:19
42 forum posts
2 photos
I've the standard base-mounted panel, so the start/stop thumb buttons. Not sure if the Stop is nvr, but it's quite small for an emergency I'd have thought
Ian S C01/12/2017 09:16:34
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7468 forum posts
230 photos

I think the emergency stop system in the local High School metal work shop is virtually a bit of string that surrounds the workshop, and when its pulled, it pulls the plug out of the socket.

Ian S C

Emgee01/12/2017 09:34:08
1346 forum posts
212 photos

Steve, if you have a DOL starter fitted you will hear the contactor close when pressing the start button, and like wise hear the contactor drop out when stop is pressed.
On the ML7 stand I used to have the starter was an MEM DOL semi recessed mounting.

Emgee

Robbo01/12/2017 09:42:47
1504 forum posts
142 photos

Original wiring diagram for single phase Industrial stand for everyone's info :-

indstand-single-phase wiring001.jpg

Steve Bower01/12/2017 10:32:40
42 forum posts
2 photos
Brilliant, thanks
Robbo01/12/2017 14:08:20
1504 forum posts
142 photos

Steve

Have mine fitted where the coolant pump switch used to be. See pic.

You can just wire the EStop across the normal stop button, the existing wiring gubbins (sorry about the technical term) provides NVR protection.

E-Stop

Steve Bower01/12/2017 15:46:10
42 forum posts
2 photos

Yes that's pretty much what I was after. I've the suds pump working, so was going to mount on the adjacent angled section.

Where did you get your feet, by the way?

Edited By Steve Bower on 01/12/2017 15:46:23

David Standing 101/12/2017 16:12:21
1285 forum posts
48 photos
Posted by Steve Bower on 01/12/2017 15:46:10:

Where did you get your feet, by the way?

Courtesy of his Mummy, and God

Martin Cargill01/12/2017 18:17:57
117 forum posts

Robbo. Any extra stop buttons need to be wired in series with the existing button, not across it

Robbo04/12/2017 23:41:01
1504 forum posts
142 photos
Posted by Martin Cargill on 01/12/2017 18:17:57:

Robbo. Any extra stop buttons need to be wired in series with the existing button, not across it

Yes. Bad choice of words I'm afraid.

Robbo04/12/2017 23:43:12
1504 forum posts
142 photos
Posted by Steve Bower on 01/12/2017 15:46:10:

Where did you get your feet, by the way?

Edited By Steve Bower on 01/12/2017 15:46:23

A long time ago on ebay. Good industrial quality

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