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Thread: Servo motor wiring

  1. #1
    mariusmarius's Avatar
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    Servo motor wiring

    Dear all homemadetools-ers!
    I ask a little help from you.
    Recently, I bought from a used things market, a servomotor. It also has a reduction gear attached to it. My intention is to use it at my milling machine to achieve a constant speed of X axes feeding.
    My requests are:
    1. What means the color of 7 wire of servomotor? I believe red wire and black wires are to connect them to 220 volts AC. Green/yellow is for ground for sure. But how about blue and orange? Or those 2 grey slim wires?
    2. How can I connect the motor to a driver to achieve a variable speed and CW or CCW direction of rotation? Could I use an Arduino board as a driver?
    3. How should I check it to see if it is running or it is broken?
    Below I have attached 2 pictures of servomotor.
    Here I found a link to my servomotor:
    Item # IHT8PF25N-25, IHT Induction Motor with Tachogenerator & Speed Control On Japanese Products Corp.
    I prefer to do my project all by myself as DIY.
    Please guide me with everything you have. Please, be patient if I put more follow-up questions.
    Thanks in advance!
    Attached Thumbnails Attached Thumbnails Servo motor wiring-motor-servo1.jpg   Servo motor wiring-servowires2.jpg  

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    Last edited by mariusmarius; Feb 17, 2020 at 08:41 AM.

  2. #2
    mariusmarius's Avatar
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    I detected those wires:
    black and orange go to 220 volts AC and run the motor. I already have tried.
    blue and red go also to 220 volts AC and run the motor also.
    2 grey wires are from an encoder mounted on other side of motor arbor. Probably they count rotation of rotor arbor.

    Attachment 33600

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