Hi,
I have a simple motorised turntable from movetech which turns clockwise and counter clockwise, this turntable has a motor of 220 - 240V AC 50Hz 1Phase but it dose not have any pcb. This turntable uses a switch to turn the rotation (FWD-STOP-REV). Now I need to use Arduino and to get data for the actual rotary position of the turntable, and also to rotate the turntable from Arduino.
Dose anyone know do I need other electronic parts to use or dose anyone have an idea how can I do this.
Thank you
The easiest way to control the motor would probably be with a relay. However you will need to understand exactly how the existing switch works - as it's an AC motor things may not be simple.
Making the motor move to exact locations may not be so easy. Apart from the question of how to identify the locations there is the difficulty of stopping the table at an exact spot. I would be VERY reluctant to stall an AC motor.
If you are satisfied that the motor can be stopped at an exact location (which can easily be proved or disproved with the existing switch) then you can consider how you would identify the locations. A lot depends on how many you need.
...R
Firstly thank you for the replay Robin2,
As i can see now the switch is very precise, and i need probably to detect every single movement maybe every 1 degree of the rotation. And do you have any specific suggestion for relay?
Thank you.
Ilirvg:
As i can see now the switch is very precise, and i need probably to detect every single movement maybe every 1 degree of the rotation. And do you have any specific suggestion for relay?
I don't know what you mean when you say "the switch is very precise". Do you mean that the table stops moving the instant you disconnect the switch? If so that will be a big help.
When you say "every 1 degree" do you mean you want the table to be able to stop at any of 360 positions around the circle? Or do you mean that you want it to stop at (say) 3 different positions with a 1 degree accuracy? If you need to be able to stop at any of 360 positions you may need to use some sort of rotary encoder connected to the turntable shaft. I don't know how finely they can resolve movement - but Google probably does. If you only want a few locations something simpler such as painted marks on the rim and an optical detector might work.
I have no idea what sort of relay would be needed without knowing how your switch is wired.
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