Re: Anyone designed a limit switch or similar to prvent pier col...


Joe Zeglinski
 

Hi Mark,


I wonder if you can accomplish your "pressure switched" relay mount
control by sending a voltage level to the auto guider port pins, instead of
trying to reverse the phases of the servo motors. With the autoguider port,
you are effectively just pressing the hand pad direction buttons, and letting
the CP3 figure out the servo motor commands to reverse the drive direction,
possibly sounding a quiet audible alarm and/or LED flasher at the same time,
when collision with the pier is just beginning.

Of course, this would not help with a remote mount, since it requires
human presence to either take over control, or to shut things down, in the
alarm condition. But it is an easy, initial design approach, for the pressure
switch/relay idea.

Joe

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