Wiring relay to break momentary

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cajun_bred

Member - Posts: 1

Joined: December 23, 2002

Location: United States

Posted: March 01, 2003 at 9:51 AM / IP Logged

I am needing to wire a relay to break a constant ground just momentarily. I will be sending the relay a momentary negative pulse or it can be converted to a positive pulse. The ground break needs to be done in order for my mementary to constant relay out to be broken.

Thanks

the12volt

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Joined: March 07, 2002

Location: Louisiana, United States

Posted: March 01, 2003 at 10:33 AM / IP Logged

If your "momentary to constant" output is a positive output, connect it to terminal 86 of an additional relay. Connect 85 to the ground you wish to use to interrupt your "momentary to constant" output. Connect the ground needed to maintain your "momentary to constant" output to terminal 87a of the additional relay and connect terminal 30 of the additional relay to ground.

If the output from your "momentary to constant" is a negative output, connect it to terminal 85 of an additional relay. Connect terminal 86 and 87 of this additional relay to a fused constant 12V+, connect terminal 30 to terminal 86 of a second additional relay. Connect terminal 85 of the second additional relay to the ground you wish to use to interrupt your "momentary to constant" output. Connect the ground needed to maintain your "momentary to constant" output to terminal 87a of the second additional relay and connect terminal 30 of the second additional relay to ground.

When you apply the ground you wish to use to interrupt the "momentary to constant" output, it will break the ground needed to maintain it and shut it off.

Wiring relay to break momentary -- posted image.

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Wiring relay to break momentary

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