Welcome to Our Community

Some features disabled for guests. Register Today.

Wiring a Router to the BlackBox Relay

Discussion in 'Controller Boards' started by JinShil, Dec 11, 2019.

  1. JinShil

    JinShil New
    Builder

    Joined:
    Nov 2, 2019
    Messages:
    12
    Likes Received:
    4
    The image in the BlackBox docs here (OpenBuilds BlackBox 4X Documentation) shows the IoT Power Relay wired to the "Toolhead PWM" port.

    [​IMG]

    Is that a mistake? I would have expected it to be wired to the "Relay" port.

    If it is not a mistake, why the "Toolhead PWM" instead of the "Relay" port?

    Thanks for the help.
     
    #1 JinShil, Dec 11, 2019
    Last edited: Dec 11, 2019
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Project Maker Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    5,399
    Likes Received:
    1,825
    The relay port has an onboard relay. used for Plasma trigger.
    Wire it to PWM port (that is a logic signal out from Grbl to control spindles. The IOT relay doesnt support PWM but its still the correct output, just used for on/off)
     
  3. ekek3d

    ekek3d New
    Builder

    Joined:
    Jul 5, 2017
    Messages:
    4
    Likes Received:
    1
    Hello All, I have my setup wired this way along with an E-Stop between the power supply and the blackbox. Hitting the E-Stop stops motion, but does not turn off the router. The router turns on and off as expected during a normal job run to completion. Why doesn't the PWM port fail open?
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Project Maker Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    5,399
    Likes Received:
    1,825
    BlackBox gets power off USB too


    More importantly, an E-Stop MUST cut power before the power strip so it cuts power to everything. What if the PSU is on fire, or the PC is on fire, or the router's power cable is snagged under a bit... E-Stops cuts power, not logic.
     
  5. ekek3d

    ekek3d New
    Builder

    Joined:
    Jul 5, 2017
    Messages:
    4
    Likes Received:
    1
    Sounds like I have some rewiring to do. Thank you Peter.
     
    Peter Van Der Walt likes this.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice