need one input three state output

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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=121323
Printed Date: May 09, 2025 at 10:36 AM

Topic: need one input three state output

Posted By: terrybk95631
Subject: need one input three state output
Date Posted: April 13, 2010 at 3:23 PM

I searched and found a little but nothing I could convert to a diagram. This is for a car heated seat circuit.

I need a relay(s) configuration that uses a grounded input (switch closes to ground) and will provide two outputs in sequence with the third trigger clearing the outputs.

Power on - Out 1 and Out 2 off (I need to make sure neither output is on when you turn on the key.)
Press 1 - Output 1 on - Output 2 off.
Press 2 - Output 1 off - Output 2 on.
Press 3 - Both outputs off.
Another press starts over at Press 1.

Any suggestions?

Replies:

Posted By: anonymous1
Date Posted: April 13, 2010 at 4:59 PM

I don't think you need to press anything to get your results.

Use a 3 way rocket switch.

UP (on) is one of your choices

DOWN (on) is one of your choices

MIDDLE (off) one of your choices.

You need a single DPDT relay to handle both UP and DOWN.

One of the smart people will be along soon to critique my foggy logic :D

Didnt I answer this question already recently?

Posted By: terrybk95631
Date Posted: April 13, 2010 at 5:14 PM

anonymous1 wrote:

...Didnt I answer this question already recently?

Not for me.

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