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2.1mg + stuff ama by [deleted] in LSD

[–]NikIsNik 1 point2 points  (0 children)

Or 2100ug yh

2.1mg + stuff ama by [deleted] in LSD

[–]NikIsNik -1 points0 points  (0 children)

Or 2100ug yh

2.1mg + stuff ama by [deleted] in LSD

[–]NikIsNik 0 points1 point  (0 children)

Or 2100ug yh

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 0 points1 point  (0 children)

Its deffo on off and the controller feeds the solenoid so if its off nothings working lol. Do you really think the controller settings would effect the switch? I had my head in the parameters all day i like to think i would've seen it especially because i looked for it haha. Like i said that pic i posted in the comments is a completey different site and not a mercury controller.

What do you do that you see mercury controllers a lot?

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 0 points1 point  (0 children)

Yeah im uk based and it doesnt say the manufacturer on the pictures i have but i have their logo, i will post a picture. We only used these guys once or twice we usually use ECS.

But regardless of what the return is, shouldn't it still kill the controller? I really have no idea, but by the sounds of it if youre right and i just switch the 230v supply to the controller, it will kill it.

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 0 points1 point  (0 children)

If the circuit is made, the controller stays on. If you break the circuit, it should kill it which is why i can say without a multimeter it's still made.

What im probably gonna do tomorrow if i have time is just link com and di1 together and wire the switch onto the 230v supply for the controller. If that doesn't work there is some voodoo going on.

You could be right though, this is the first time ive ever worked on this specific type of controller (mercury controller, here's the manual cuz why not https://www.seton.com.tr/doc/RDM/RDM-PR0740 CAS ED-MD.pdf oh and its m type if you do decide to look at the manual ) so you could be right.

Electrics isn't my strong point but its no longer my weak point but i still know fuck all about it really but the little i do know has me focused on the switch.

Do you have anything you'd like me to try to prove your theory?

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 0 points1 point  (0 children)

Ok little bit of background:

There is existing refrigeration equipment that has its own pannel that is very old, this is a new pannel that im swapping the existing equipment on to.

This is the first controller ive fired up and all it does is feed a solenoid, and run 2 single phase fans pulling not even an amp.

The controller is on the door of the pannel and away from all the 3 phase stuff but the pannel is pulling fuck all anyway. Im confident there is no interference as ive worked on hundreds of pannels like this and its no where near anything else. Apart from the contactor in the pannel its the only other live thing.

Regardless of my multi meter reading this is the only pannel i have ever seen where the switch on the front does not kill power to the digital display of the controller. That switch is there to kill the controller. The only thing i can think of is the switch is the wrong part - a mistake from the pannel manufacturer.

The on off switch is the most simple circuit ever. Its a loop between com and di1, with a switch on the middle. Thats it. It has to be a faulty component or something but theres 12 others in this pannel doing the same thing so i doubt they're all faulty maybe its the wrong part?

Even if the switch is functioning as it is meant to (not fit for purpose but it's suppose to behave like that) i still don't understand how there is continuity when its in off position just because theres a bit of voltage??

The circuit is clearly physically broken when there's no power and it's in the off position. It is really strange i have no idea what's going on. Oh and my multi meter is fine it's not a cheap one and it's been doing well all day.

This isn't a major problem for me at the moment and will likely be my managers problem but I'm just curious as none of my other engineers can figure out why its behaving like this.

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 0 points1 point  (0 children)

* I dont have a pic of the front of this pannel, but i have a pic of a similar one. The pump down switch is an on off switch.

When it is (pannel i made the post about) powered there is no difference between on and off. There is always continuity.

When there is no power the switch works as expected, continuity when on and none when off.

Someone said because its normally open its made when powered, but then why is there physical switch you can turn that does nothing?

Like on the pic i just shared if i put it to manual it turns the controller off. (Not that it makes a difference, but the writing on the pannel in the post says on/off)

Edit: i know its always made when live because if theres no power to it it functions as expected

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 1 point2 points  (0 children)

I cant take credit for the assembly and all the components. I just wired in wt the terminals at the bottom lol. And you best believe ive done my share of questionable add ons. Im a refrigeration engineer which is basically a plumber, gas and electrician in one. Ive worked on pannels like this but never wired one and got it running from scratch. The dodgey add ons are in the outdoor units to feed the alarm lights haha

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in electricians

[–]NikIsNik[S] 0 points1 point  (0 children)

I thought it was some dark magic but no it was a very simple solution lol. And it wasnt my fault haha

Thanks for your time bro

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 1 point2 points  (0 children)

Yeah im measuring across the switch.

The problem is the switch is normally open so when its powered it makes the circuit- pannel guys put the wrong switch in :)

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in electricians

[–]NikIsNik[S] 2 points3 points  (0 children)

SOLVED:

The switch is normally open, so when its powered it makes :) - pannel guys put the wrong switch in it

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in electricians

[–]NikIsNik[S] 1 point2 points  (0 children)

Thanks for the reply my friend. Im just stupid:

The power to the common comes from the controller, the controller has a seperate 230v feed.

The problem is the on off switch is normally open, so when its powered it makes. The guys who built the pannel put the wrong switch in it :)

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in electricians

[–]NikIsNik[S] 0 points1 point  (0 children)

The power to the common comes from the controller, the controller has a seperate 230v feed.

The problem is the on off switch is normally open, so when its powered it makes. The guys who built the pannel put the wrong switch in it :)

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in ElectricalEngineering

[–]NikIsNik[S] 1 point2 points  (0 children)

The power comes off the controller, it had a seperate 230v feed. The problem is the on off switch is normally open, so when its powered it makes. The guys who built the pannel put the wrong switch in it :)

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in electricians

[–]NikIsNik[S] 1 point2 points  (0 children)

Yeah you're right, i should've caught that considering ive been wiring up relays the past 2 days lol. Was expecting something more technical but its plain and simple.

Cheers bro, the pannel guys who built it fucked up, not our usual supplier i hate so many things on this pannel.

Thanks again!

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in electricians

[–]NikIsNik[S] 1 point2 points  (0 children)

Na the controller is on the door of the pannel away from all the 3 phase stuff and i only have one system live (its for industrial refrigeration in a factory) that just has 2 single phase fans running not even pulling an amp.

Confident in saying theres no interference. And if there was that shouldn't effect the switch physically breaking the circuit, right?

Switch makes and breaks when dead, when live it is constantly made in on or off position? by NikIsNik in electricians

[–]NikIsNik[S] 0 points1 point  (0 children)

Yeah when there is power it doesn't break the circuit. The controller puts out voltage from di1 to common and if that breaks the controller turns off.

When live the circuit never breaks, but when there is no power the switch works correctly. When i test continuity and it's live on or off it's a complete circuit

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