[xGE_97]

Richard,
Just getting to this now because if internet issues.

Initial conditions: The handle is released and the bay door is closed or open. In this case I would expect no voltage applied to the latch.

Activated condition:  The handle is pulled to open the bay door. I would want a single 12VDC pulse of 50ms length, immediately followed by a minimum of 450ms of 0VDC. The cycle shall not be allowed to repeat as long as the handle remains in the active (pulled) state.

Released condition: As the handle is released, the circuit may reset to initial conditions when two criteria are met: 1.) the 450ms wait period has expired. 2.) The 12VDC signal from the handle has gone to 0VDC.

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One more thing. I want to test the electrical latch release before finalizing the design. I don't have specs on the motor, so I don't know how it'll really act. My one shot is just implementing their latch spec. It may be possible that several 10% duty cycles are necessary to make ut work in real life.

[xGE_97]

Jim,
Who did you contact at Southco?

[hypoxia]

Jim,
Who did you contact at Southco?

Southco Chat

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Here are the files supplied by Southco for the EM-03-43-340 latch

J-EM-03-3_revC.pdf Size: 289.31 KB  Downloads: 3

TD-EM-03-1-J_rev.pdf Size: 113.46 KB  Downloads: 3

[Richard]

Bob,

First spend the extra and get the WiFI programmable version, it’s easier to work with than the original.

Second, the easiest way is to use Option 3. The relay would energize when the button is depressed, and release after your programmed time delay. It would not energize again until the button was released and pressed again. I doubt that one would repeatedly press and release the button again with less than 1/2 sec intervals.

Third, if you wanted to get fancier, option 29 is worth investigating, it would guarantee your requirements with one short enagement, followed by a mandatory wait, and would not cycle until the button was released and pressed again. It is more programming would require slightly more complex wiring.

I would try Option 3 first.

[xGE_97]

Sounds like option 3. You just want to prevent a stuck-on handle from doing the watusi on the latch.

[xGE_97]

Thanks for all the help!!! Awesome having good buddies work the issue.

Tonight its a nice Blanton's and the Stanley cup........Ahhhh. So hard to have just one shot.....Hahahahaha.....