GEFRAN 40B96 - Pressure Imdicator

[Darkwood]

No, look at what it is wired to in your case it seems to be the stop circuit loop, common is just a common voltage input value, if your system was 24v dc then common maybe the 24v dc + if that is the common value, once the output closes it sends this 24v + to where ever you want, you can also get negatively switch systems so in my example 24v dc - would be common, TBH the term common is very ambiguous and can mean different things in different circuits so don't put a label on it.
Again I am guessing as I have no literature on this controller.

I just wired a panel and have a common 24v+ rail which I tap off to various components, if you buy a standard timer with volts free relay output you get N/O - C - N/C ...you put the power onto the C- common and you switched output(s) on either N/O or N/C or both depending what you want to achieve.

 

[Cadgey123]

No, look at what it is wired to in your case it seems to be the stop circuit loop, common is just a common voltage input value, if your system was 24v dc then common maybe the 24v dc + if that is the common value, once the output closes it sends this 24v + to where ever you want, you can also get negatively switch systems so in my example 24v dc - would be common, TBH the term common is very ambiguous and can mean different things in different circuits so don't put a label on it.
Again I am guessing as I have no literature on this controller.

I just wired a panel and have a common 24v+ rail which I tap off to various components, if you buy a standard timer with volts free relay output you get N/O - C - N/C ...you put the power onto the C- common and you switched output(s) on either N/O or N/C or both depending what you want to achieve.

You have given great advice to the OP and myself , but I would be worried about what’s he is upto? Especially if he can’t understand rudimentary terms of C & N/O. Who knows what that machine does? Let hope he doesn’t bodge it

 

[Kootni]

@darkwood many thanks for your advise.
I attach picture of the drawing to elucidate what’s happening on the ground. May be that will help u understand bit better the practical side of it.

 

[Spoon]

OP: I'm sure you will take this the wrong way but I feel that you should not be messing with this.
Have you done a risk assessment for removing this function?
If you alter any of its circuit then and there is an accident due to the change then it will be all on you. You did the change and you are now responsible for signing of the safety of the machine.

 

[Kootni]

@Spoon no it’s not so much about safety. Though I understand your concerns. Brass Bolts are there to free the pressure should the need arise. Trouble is this additional mechanism was installed by the last chap not by the manufacture of the machine.

 

[Spoon]

This is a on a Machine just bought. We don’t use this device on other machines and it’s certainly not needed otherwise we would have kept it. Guy who had the machine before us kept it due to kind of raw material they used to run.

Trouble is this additional mechanism was installed by the last chap not by the manufacture of the machine.

So get all the paperwork of the guy who you bought the machine off. He should have the original wiring diagram and all safety reports for said change.

 

[Spoon]

If you are putting the machine wiring back to how it was when it was originally manufactured why can't you get the wiring diagram from the manufacturer and wire it to that?

 

[Kootni]

@darkwood any ideas on the diagram I posted last. Ta

 

[Darkwood]

@Kootni

While I am happy to assist to a certain extent I do limit my help in giving you a step by step guide of sorting this out, I am not questioning your time in the industry and the field you worked it, you may be very competent in your comfort zone but it does appear you are trying to learn this side of the trade off the cuff, some of your questions are worryingly basic for an Engineer employed to look after or repair such machinery.
Your profile suggests you have no electrical qualifications, can you either update your profile or confirm this position.
If you indeed as suggests have no formal qualifications then you may be putting yourself and employer/customer is a very awkward position, if anything were to happen on anything you have been altering or diagnosing etc caused injury/death or damage to machine or property then your lack of formal recognised qualifications could ultimately put you in court with little way to defend your position it may also void any insurance claims a customer or company made or you have, you will need one hell of a lawyer and representative to show you were fully competent to be undertaking the work you did, the questions you ask here on the forum suggest you are indeed doing work you should not be doing, a nudge/reminder is one thing, explaining the basics of this side of the trade to help you is another.
The wiring plan you posted is extremely basic to follow and straight forward so I really shouldn't have to explain it to a member actively involving themselves in machinery control and diagnostics.

I will give you room to respond but unless you can satisfy my concerns then the thread will be closed, I have been more than generous with help here and you appear still to be confused.

 

[Kootni]

@darkwood you have been more than helpful. Gave us some specific pointers hence managed to solve the problem today. Thank you

 

[Darkwood]

I hope you understand our concerns, you take a large amount of responsibility on your shoulders delving into this side of electrics and anything you do should be fully documented, wiring plans updated, risk assessment done if the alteration alters the safety or function of the machine in anyway. Mine and others concerns is you are just learning as you go along with no formal training and this in itself could put yourself and or others in danger, it's not what you know that you need to worry about here, it's what you don't know that I am personally concerned about, ignorance kills in this industry H&S don't take ignorance as an excuse and with no qualifications you are a sitting duck with a high probability of getting it wrong, it's quite easy in this game to get something to function how you want but it takes years of training and experience to achieve the same result safely and compliant.

 

[Darkwood]

Thread closed.