[Xringer]

Originally Posted by valentin61

hello I could recomend theanalogguy regarding the controller I have 2 of them workimg here and they are fine. here a picture of my DIY units and if you want information to the surplus please note the link
Solarstrom und Photovoltaik Erträge | Erneuerbare Energie | Sonnenertrag.eu

best greetings from austria
lobensommer

Thanks! I looked at the EST1 http://www.theanalogguy.com/EST1%20WEB%202006-07-23.htm
and I think it would be suitable for my dish, but I'm not sure how
'built-in limit switches' switches work.

It seems logical that they have a mechanical gear link to the motor,
and they would open the circuit at the end of travel.
BUT, if the circuit is Open, How do you get the motor to restart in the other direction??

The only thing I can think of, is a backwards diode across the switch, that will allow reversed current to bypass the open contacts.?.

That's got to be it!

Anyways, maybe this weekend I can take a battery out there and run the
motor down to the end and see what it does.
If it works okay, I'll be able to proceed with the project.