[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.