Connecting a spindle motor to mk3/4 board and controlling via planet software

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Thread: Connecting a spindle motor to mk3/4 board and controlling via planet software

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    Default Connecting a spindle motor to mk3/4 board and controlling via planet software

    Hello everyone,

    I have upgraded my spindle to a 400w brushless spindle.

    I would like to connect it and power it from my planet mk3/4 control board and enclosure. Can anyone explain the way to do it in laymans terms. I have attached some pics to help explain



    This is the power supply within my enclosure

    there is something called an octocupler which I have no idea what it does but I here is a pic of it in case it is needed

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    Default Re: Connecting a spindle motor to mk3/4 board and controlling via planet software



    Attached Thumbnails Attached Thumbnails Connecting a spindle motor to mk3/4 board and controlling via planet software-10oct-png   Connecting a spindle motor to mk3/4 board and controlling via planet software-11oct-png  


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    Default Re: Connecting a spindle motor to mk3/4 board and controlling via planet software

    You should connect output pins* of Mk3/4 controller with control inputs of your spindle driver.

    Output pin* configuration in CNC USB controller software: File/Settings/Output/Spindle&Coolant:
    ON/OFF -> Set to Pin 1
    Direction -> Set to Pin 2
    Speed (PWM option enabled below) -> Usually pin 6


    Based on the pictures that you have attached:
    MOTOR +- is where you connect your spindle motor
    Power+- is where you connect power supply for spindle driver.


    You should connect PWM pin from controller to 0-5V input of spindle driver unit.
    Check if +5V input of this unit is for motor enable (meant as ON/OFF)

    It would be very helpful to have any user manual of this unit.



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Connecting a spindle motor to mk3/4 board and controlling via planet software

Connecting a spindle motor to mk3/4 board and controlling via planet software