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  1. 05-08-2014 #2
    EddyCurrent's Avatar
    Lives in West Cumbria, United Kingdom.
    EddyCurrent
    Last Activity: 2 Weeks Ago Forum Superstar, has done so much to help others, they deserve a medal. Has a total post count of 2,203. Received thanks 278 times, giving thanks to others 110 times. Is a beta tester for Machinists Network features.
    I'm assuming you want to measure speed ?

    Your VFD may have an analogue output that can be set proportional to the speed.

    Or a motor similar to this should act like a generator if it is driven by the spindle. I don't know if it is possible to attach it to the spindle shaft though on your machine.
    http://www.amazon.com/20000RPM-1-5-3.../dp/B00D0W6W5M
    The ouput would be proportional to speed. If you could find a 5v or 24v that would be ideal.

    But maybe you are just looking for an index pulse for each revolution ?
    Last edited by EddyCurrent; 05-08-2014 at 08:05 PM.
    Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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