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the12volt's install bay
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 Topic: display board relay setup?
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carraudio
Joined: September 19, 2004
Location:
United States
Posts: 24 |
| Posted: December 29, 2011 at 2:48 AM - IP Logged |
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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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Chris Carr
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carraudio
Joined: September 19, 2004
Location:
United States
Posts: 24 |
| Posted: December 30, 2011 at 8:09 AM - IP Logged |
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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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Chris Carr
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carraudio
Joined: September 19, 2004
Location:
United States
Posts: 24 |
| Posted: January 05, 2012 at 9:12 PM - IP Logged |
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Things for this have started to come in...
150 relays...
200 diodes ...
500 connectors...
I can't wait to get started with this.
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Chris Carr
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oldspark
Joined: November 03, 2008
Location:
Australia
Posts: 2,855 |
| Posted: January 06, 2012 at 1:48 AM - IP Logged |
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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.
(eg, as used here.) |
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hotwaterwizard
Joined: December 11, 2003
Location:
California,
United States
Posts: 1,293 |
| Posted: January 09, 2012 at 9:12 PM - IP Logged |
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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
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hotwaterwizard
Joined: December 11, 2003
Location:
California,
United States
Posts: 1,293 |
| Posted: January 11, 2012 at 9:41 PM - IP Logged |
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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.
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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
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carraudio
Joined: September 19, 2004
Location:
United States
Posts: 24 |
| Posted: January 25, 2012 at 7:57 AM - IP Logged |
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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
it will take a bunch of diodes to do the unlatching but it will work like I want it to.
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Chris Carr
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carraudio
Joined: September 19, 2004
Location:
United States
Posts: 24 |
| Posted: February 22, 2012 at 9:23 PM - IP Logged |
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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...
If you look to the left you can see my latched relays.
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Chris Carr
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hotwaterwizard
Joined: December 11, 2003
Location:
California,
United States
Posts: 1,293 |
| Posted: March 03, 2012 at 6:21 PM - IP Logged |
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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 !
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carraudio
Joined: September 19, 2004
Location:
United States
Posts: 24 |
| Posted: March 03, 2012 at 7:32 PM - IP Logged |
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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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Chris Carr
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