Electrical Question: 4 switches 4 items only one item to work one at a time?

Mr. May · 16 Dec 2012 at 16:10

Need a little advice .....

Ive been asked to make a wiring diagram of the folowing....

The item i need to draw a wiring digram had 4 switch which looked like these . They will be supplied form one source, controlling 4 items, But only control on item at a time.

Could any one point me in the the right direction of what switches I will need.

Thanks

zipp0r · 16 Dec 2012 at 16:32

what? i dont even...? 4 switches will allow 1-4 to work independently and at the same time. or you can have one switch that will control 4 items and only one circuit will work at any time.

Sin_Chase · 16 Dec 2012 at 16:33

Wire in parallel with any switch you want....as long as it switches. Also, what exactly are the 4 items you are wiring?

Mr. May · 16 Dec 2012 at 16:43

Its coming from a DOL starter which the contactor is controlled from a measuring valve.

You Prime the machine and set how many liters you want to flow, also has a stop button on it which controls the DOL starter.

The DOL start then goes to a telemecanique box with 4 of them switches and 4 leds to show which pump is working.

It has to be wired in a way where only one pump will work at any time.

So say two switches or more switched out of the four where in the on position, none of the pumps would work.

Mr. May · 16 Dec 2012 at 16:45

zipp0r said:
what? i dont even...? 4 switches will allow 1-4 to work independently and at the same time. or you can have one switch that will control 4 items and only one circuit will work at any time.

The way it was done was with four separate switches like above I must explaine and draw a wiring diagram to show my understanding of it.

joeyjojo · 16 Dec 2012 at 17:17

I don't think that can be done with just 4 switches. Probably the right way to do it is 4 relays and some logic to disengage one and engage another when a button is pressed. Something like an Arduino could work as the core.

Philip Perfect · 16 Dec 2012 at 17:24

Maybe I'm misunderstanding the problem, but wouldn't a rotary switch allow you to do this?

Mr. May · 16 Dec 2012 at 17:26

joeyjojo said:
I don't think that can be done with just 4 switches. Probably the right way to do it is 4 relays and some logic to disengage one and engage another when a button is pressed. Something like an Arduino could work as the core.

It can as it has its all up and working. I need to show a wiring diagram for how hes done it, im just struggerling finding the switches hes used.

Mr. May · 16 Dec 2012 at 17:31

Philip Perfect said:
Maybe I'm misunderstanding the problem, but wouldn't a rotary switch allow you to do this?

I was thinking this but with that you could possible leave the wrong pump running if the operator ddi use the correct sequence.

j_walsh · 16 Dec 2012 at 17:32

cant understand how that would work with just four switches and a contactor would need relays i would have thought.

joemo13 · 16 Dec 2012 at 17:37

Just guessing here: On each switch use 1 normally open contact and 3 normally closed. Wire through the power supply to a normally closed on one switch then through 1 normally open on every other switch then wire it to your output. This means that unless one switch is on and the rest are off .
Input Switch1 Switch2 Switch3 Switch4 Outut
in1 -> NO -> NC -> NC -> NC -> OUT1 + LED1
in2 -> NC -> NO -> NC -> NC -> OUT2 + LED2
in3 -> NC -> NC -> NO -> NC -> OUT3 +LED3
in4 -> NC -> NC -> NC -> NO -> OUT4 + LED4

Edit:
On the link you used, you would want something like a 2 position stayput with an illuminator so on the back of each switch you would want 3 NC contacts, 1 NO and the LED unit.

Mr. May · 16 Dec 2012 at 17:45

joemo13 said:
Just guessing here: On each switch use 1 normally open contact and 3 normally closed. Wire through the power supply to a normally closed on one switch then through 1 normally open on every other switch then wire it to your output. This means that unless one switch is on and the rest are off .
Input Switch1 Switch2 Switch3 Switch4 Outut
in1 -> NO -> NC -> NC -> NC -> OUT1
in2 -> NC -> NO -> NC -> NC -> OUT2
in3 -> NC -> NC -> NO -> NC -> OUT3
in4 -> NC -> NC -> NC -> NO -> OUT4

This sounds more like it how would I would go about drawing the wiring diagram.

are these the accessories he used ?

joemo13 · 16 Dec 2012 at 17:49

Yep, so long as you pick the correct ones to use with the switches you use.
To show that you are using the same witch on different contacts, draw them in parallel with a dashed line inbetween the contacts.

Mr. May · 16 Dec 2012 at 17:53

So Would i use a pair of these on each switch?

Sorry for the noob question, But its the first ive seen these.

I only have only supply coming into the box which I take it would be linked across all the switches ?

Mr. May · 16 Dec 2012 at 17:59

Just seen your edit I take it these are the switches?

joemo13 · 16 Dec 2012 at 18:06

Message in trust. You can use most selector fronts as most come with the ability to add extra blocks on if you want, and you can put more than one ontop of the other.
Using your original link:
http://www.ilecsys.co.uk/zdriverils/form/catsel/TM-ZB4-SEL-SW-LED/product/ZB4-BK1233
and
http://www.ilecsys.co.uk/zdriverils/form/catsel/TM-ZB4-IPB-GREEN/product/ZBE102
http://www.ilecsys.co.uk/zdriverils/form/catsel/TM-ZB4-IPB-GREEN/product/ZBE101 x3 for each one.
Im not sure if those selectors come with bodys though.

Mr. May · 16 Dec 2012 at 18:28

Messaged you back matey.