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IndustryArena Forum > CNC Electronics > Servo Motors / Drives > Help with Encoder and Gecko G320X
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  1. #1
    Join Date
    Sep 2015
    Posts
    19

    Help with Encoder and Gecko G320X

    I recently purchased a ISEL router with the servo motor option. I would like to convert to Mach3 using the G320X. I was wondering if someone could tell me how to wire encoder? I found these specs for the encoder but not sure which connections are needed for the G320X? I could easily replace with steppers but would like to use the factory servos for better resolution. thanks in advance.

    1000PPR 1/4INCH SHAFT

    1 - red - +5vdc input
    2 - yellow - I output
    3 - blue - Q output
    4 - orange - index output
    5 - brown - *index output
    6 - no connect
    7 - white - *I output
    8 - green - *Q output
    9 - black - ground

    The signals shown above with the "*" in front of them are the inverse of the corresponding signal without the "*". The outputs are 0-5vdc, and for example, whenever the 'Q output' is at +5vdc, the '*Q output' will be at 0vdc.

  2. #2
    Join Date
    Dec 2003
    Posts
    24221

    Re: Help with Encoder and Gecko G320X

    What is the part number or details of the encoder?
    Simply you would have A & B pulses and the complement of them. plus the marker Z pulse.
    Which it seems you have, which is a standard increment encoder.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  3. #3
    Join Date
    Sep 2015
    Posts
    19

    Re: Help with Encoder and Gecko G320X

    Thanks for the reply! The part # on encoder is Renco 77822-033. I could not find any info on it. I stumbled across another thread showing the color pinouts. So a Gecko 320X will run this type of servo?

  4. #4
    Join Date
    Dec 2003
    Posts
    24221

    Re: Help with Encoder and Gecko G320X

    According to the G320x it only has A & B pulse input and no Z pulse input, so in this case, the AB complements would be left unconnected, including no Z pulse.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  5. #5
    Join Date
    Sep 2015
    Posts
    19

    Re: Help with Encoder and Gecko G320X

    Thank you.. So i would hook up:
    2 - yellow - I output ---> Gecko "Channel A"
    3 - blue - Q output ------> Gecko "Channel B"?





  6. #6
    Join Date
    Dec 2003
    Posts
    24221

    Re: Help with Encoder and Gecko G320X

    looks like 2 & 7 in your OP?
    Two are the A-B quadrature pins, the complements of them are left unconnected.
    Generally they are notated A, /A & B /B , the /notated ones are the complements.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

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