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  1. #1
    Join Date
    May 2021
    Posts
    47

    Re: Basic Wiring Questions for VFD

    Thanks again Mactec54 I really appreciate your time and great input.
    I finally received a new SSR relay and now have my spindle up and running great thanks to your help.
    I am so very close, but I cannot for the life of me understand why my PWM voltage will not change and is a constant 5v out of my board. I have the PWM set to be Port 1 pin 17. I have gone over mach3 manual 5 times but I am missing something easy, I am sure. Would you just glimpse at these settings and see if something jumps out at you?? The white wire in the pic is my PWM and is Port 1 pin 17 (this is just temp wiring). Shouldn't that voltage change as I change the speed in Mach?

  2. #2
    Join Date
    Jan 2005
    Posts
    15362

    Re: Basic Wiring Questions for VFD

    Quote Originally Posted by RufusToad View Post
    Thanks again Mactec54 I really appreciate your time and great input.
    I finally received a new SSR relay and now have my spindle up and running great thanks to your help.
    I am so very close, but I cannot for the life of me understand why my PWM voltage will not change and is a constant 5v out of my board. I have the PWM set to be Port 1 pin 17. I have gone over mach3 manual 5 times but I am missing something easy, I am sure. Would you just glimpse at these settings and see if something jumps out at you?? The white wire in the pic is my PWM and is Port 1 pin 17 (this is just temp wiring). Shouldn't that voltage change as I change the speed in Mach?
    The only way to check the output 0-10v is by using MDI and type in M3S12000 this would give you around 5v M3S24000 should give you around 10v.

    I will check what I have for the smooth Stepper settings

    Do you have the correct step port set?
    Mactec54

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