Graham wrote:-
>
>There is an error in the description of the wiring of the four door switches,
>perpetuated in the copy in Europa Flyer. The rear switches must wired in
>parallel, before they are placed in series with the forward activating serial
>switches. Otherwise both bolts would have to be out for activiation, rather
>than either !
>
The above circuit does not indicate WHICH door is closed incorrectly ---- a
better circuit is to
wire the front (NO) and rear (NC) switches of each door in series and then wire
both door circuits
in parallel. This way you get a beep as each door is closed and an incorrectly
closed
door will immediately cause the alarm to sound continuously.
Ted
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