latched on/off output using a single mome

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uk52rob

Member - Posts: 4

Joined: July 31, 2008

Posted: July 31, 2008 at 1:35 PM / IP Logged

Has anyone actually got this to work??I have tried this with no luck. Checked and double checked installation and all is ok....

I will attempt to find out what exactly is going on and report back. I just wondered if anyone has noticed an obvious mistake that I need to know about?!

latched on/off output using a single mome -- posted image.

Cheers!

dualsport

Silver - Posts: 983

Joined: September 27, 2005

Location: United States

Posted: August 01, 2008 at 9:28 PM / IP Logged

What's not working with it?

Is it not latching the way you expected?

i am an idiot

Platinum - Posts: 13,669

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: August 01, 2008 at 9:38 PM / IP Logged

I have never used this particular diagram, but looking at it I see no problems at all. I have never seen a diagram posted by our Administrator that did not work.

As asked above, what kind of problems are you having with it?

uk52rob

Member - Posts: 4

Joined: July 31, 2008

Posted: August 04, 2008 at 9:50 AM / IP Logged

Ok, there was a constant 12v output from the 'switched' output. The negative thrown from the switch (or wires if you are testing) did not throw any of the relay contacts (no noise / click). The fused 12v input was fine. The common earth was fine....

I have checked, double checked, and triple checked the configuration, and everything was ok... including the diodes (4-relay configuration)so i just don't understand it?!

Has anyone else produced a working example?

Thanks

wirewise

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Joined: March 07, 2002

Location: California, United States

Posted: August 04, 2008 at 9:57 AM / IP Logged

Are you sure you're only using SPDT relays? Take a picture of what you have wired and post it here so we can have a look-see.

~wirewise~

uk52rob

Member - Posts: 4

Joined: July 31, 2008

Posted: August 04, 2008 at 10:06 AM / IP Logged

Ahh, I knew someone would ask that! I took it all apart last night as i was running short of relays and it wasn't working... here are the ones I used.. SPDT 12v Relay - Maplin code: N00AW

Diodes were Schottky Rectifier 1N5818 Diodes, Maplin code JA47B.

Cheers

wirewise

Moderator - Posts: 489

Joined: March 07, 2002

Location: California, United States

Posted: August 04, 2008 at 10:12 AM / IP Logged

If the coil of the first relay did not energize (click) when you applied ground to terminal 30 of the third relay, you definitely have something wrong. Without seeing exactly what you wired, there is no way of knowing what the problem on your end is.

~wirewise~

uk52rob

Member - Posts: 4

Joined: July 31, 2008

Posted: August 04, 2008 at 10:17 AM / IP Logged

Ok, I will try to re-create said example this evening and post a photo.

Cheers

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latched on/off output using a single mome

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