measuring position signal from a servomotor

[Michael_N]

Hi All,

I was wondering if it is possible to measure the actual position of a servo motor?

All the servo motors I have seen only have 3 wires.
2 for power and 1 for the position signal In.

I need a forth for position signal Out.

I now that it must be used internally for the motor to know if it is in the right position. But will it be possible to draw out?

Kind regards
Michael

 

[jpanhalt]

Here is a thread on that very subject: https://www.edaboard.com/threads/215058/

Apparently, the answer is yes.

John

 

[HTA]

If the motor has not a build in encoder or zero position sensor the position sensing device needs to be external. If you can put a magnet on the axis you could use a single chip magnetic encoder, like the iC-MA from iC-Haus ( application you find here: https://www.ichaus.biz/product/iC-MA , or here: **broken link removed**, or here: https://www.ichaus.biz/wp_boost_performance ).

Enjoy your design work!