After 25 years my dish needed a new control box for the rotators, the old one was rather worn out. I kept the same AC motors as they performed very well over the last decades. I decided to put the control unit at the tower and to use a 5 wire cable to control the Az and the El rotators, switching a relay to ground.
![](https://pa3csg.nl/wp-content/uploads/2020/09/motorsturing_dish_5-8-20-1024x735.jpg)
![](https://pa3csg.nl/wp-content/uploads/2020/09/motorsturing_dish_relais-5-8-20-1-1024x735.jpg)
I added snubbers over the relay contacts, not only for the mains switch but also for the help winding. The last isn’t necessary probably. There is also a provision for mechanical end stops, so in theory nothing could happen.
![](https://pa3csg.nl/wp-content/uploads/2020/09/DSC_5349-758x1024.jpg)
![](https://pa3csg.nl/wp-content/uploads/2020/09/DSC_5348-1-1024x682.jpg)
![](https://pa3csg.nl/wp-content/uploads/2020/09/DSC_5350-1-1024x682.jpg)