display board relay setup?

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=129920
Printed Date: May 04, 2024 at 8:04 PM

Topic: display board relay setup?

Posted By: carraudio
Subject: display board relay setup?
Date Posted: December 29, 2011 at 2:48 AM

I just started working at a small shop here in Nebraska and we don't have a switchable display and I want to make one. I did search and found THIS. When I tried to make the latched relay part to see if it worked I could get it to go from 5 down and it would release the previous relay but if I start at 1 or just try to go up the chain to the next relay it won't release the previous relay. I can see why it is doing what it is doing. It will release the higher relay because when the lower is energized the delay in the switching breaks the 12 volts but it won't do it going the other way. How do I fix this?

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Replies:

Posted By: carraudio
Date Posted: December 30, 2011 at 8:09 AM

I have it figured out. I will have to use HWW diagram here that uses two relays and just diode iso all the unlatch triggers. I will keep you posted with pics once this is started.

If anyone has any input that I may need to know feel free to post it.

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Posted By: carraudio
Date Posted: January 05, 2012 at 9:12 PM

Things for this have started to come in...

150 relays...
posted_image

200 diodes ...
posted_image

500 connectors...
posted_image

I can't wait to get started with this.

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Posted By: oldspark
Date Posted: January 06, 2012 at 1:48 AM

With 2 switches (an NO and an NC), why not the circuit below where the "constant +12V output" is +12V after pressing on and if off after removing power else pressing the off button. One or both diodes may be optional.

posted_image

(eg, as used here.)

Posted By: hotwaterwizard
Date Posted: January 09, 2012 at 9:12 PM

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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

Posted By: hotwaterwizard
Date Posted: January 11, 2012 at 9:41 PM

Okay Here is the best Fix I could figure out for you.

Add an extra button and relay to reset off.

Then select which one you want.

posted_image

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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

Posted By: carraudio
Date Posted: January 25, 2012 at 7:57 AM

If did it that way I wouldn't want to make the off one latched. I think I'm just going to use this relay setup

posted_image

it will take a bunch of diodes to do the unlatching but it will work like I want it to.

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Posted By: carraudio
Date Posted: February 22, 2012 at 9:23 PM

So we have been slammed at work for the past few weeks. It has been nice but no chance to work on my display. Here is what i have so far...

posted_image

If you look to the left you can see my latched relays.

posted_image

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Posted By: hotwaterwizard
Date Posted: March 03, 2012 at 6:21 PM

Looks great !

The problem is that my diagram is a concept.

I never built the circuit.

You went that extra step.

Please let me know how it works out.

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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

Posted By: carraudio
Date Posted: March 03, 2012 at 7:32 PM

It will work great once I get time to work on it. I'm trying to find a cheap way to hold my diodes for the switches. It is either 32 single row barrier strips or I might do something with mdf. The shop is just so small we don't have a wood shop.

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