Hello
I try to control (hs control panel) my motor positioning antenna sat remotely thanks to my arduino uno, only I do not know how to do.
It is a motor powered with 24V-40VA with 3 wires (left / right / ground) by tagra ( http://www.radiomanual.info/schemi/ACC_rotator/Tagra_RT-50_user.pdf )
As I do not want to grill my arduino, I cry to the rescue.
Thank you for your help !
Jeff
You'll need to figure out how the three wires are used by the existing controller - I looked at the manual
you linked to but its not clear how it works in detail.
Thanks for help
For the three wires, it's like that : http://www.hostingpics.net/viewer.php?id=139817KR400Schematic.gif
Jeff
Jeff_fyf:
Thanks for help
For the three wires, it's like that : http://www.hostingpics.net/viewer.php?id=139817KR400Schematic.gifJeff
Almost all rotator controls use this design. An AC motor with an AC electrolytic capacitor to shift the phase going to one winding of the motor. This is what controls the direction.
To remote the operation of the controller, you will have to replace all the switches with relays and then control the relays with your Arduino.
The challenge will be if you also want to remotely see the meter on the controller, but you didn't ask about feedback.
Paul
Thank you for your answers
As I do not really need a perfect accuracy to the degree I was thinking of doing a little program to drive the arduino that would take into account the time that the engine puts in to make a 360 ° and spot me through it. For the rest, a system with relay or high power transistor should do so.
Is this achievable or do I dream 
?
Thanks
Jeff
Jeff_fyf:
Thank you for your answers
As I do not really need a perfect accuracy to the degree I was thinking of doing a little program to drive the arduino that would take into account the time that the engine puts in to make a 360 ° and spot me through it. For the rest, a system with relay or high power transistor should do so.
Is this achievable or do I dream
Thanks
Jeff
No transistors. You are dealing with alternating current. Yes, you could determine the position based on time, but how would you be able to determine the starting position remotely?
Paul
Good question 
Maybe with a memory system that would store the position and then find it with each new use ... Otherwise, a needle dial but then it becomes complicated 
Jeff_fyf:
Good question
Maybe with a memory system that would store the position and then find it with each new use ... Otherwise, a needle dial but then it becomes complicated
This is a really cheap rotator with no brake, so the wind can rotate the antenna when no power is applied. Have one and replaced it with rotator with brake.
Paul