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BlackBox + with Inductive Proximity Switch?

Discussion in 'Controller Boards' started by Arnaudvr, Mar 8, 2021.

  1. Arnaudvr

    Arnaudvr New
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    Hello,

    With the Blackbox
    It's possible change the Xtension limit switch ?
    with Inductive Proximity Switch NPN NO DC 6-36V, 4mm Detecting Distance LJ12A3-4-Z/BX.

    Thanks Alot
    Have a nice day
     

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  2. Peter Van Der Walt

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

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    Yes you can. (but only one per axis, you cannot parallel Inductives, like you can with Xtension switches)

    Brown = V+,
    Blue = GND, and
    Black = SIG

    Check the voltage range of your inductives, if its 6-36v it may not run well off the default 5V supply, you can then refer to docs:blackbox:jumper-limitswitchvoltage [OpenBuilds Documentation] top power them off 24v instead
     
    ToddW and sharmstr like this.
  3. Arnaudvr

    Arnaudvr New
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    Thanks Alot Peter.

    I go changing to 24v and try with 3 inductives limit switch.

    Regards
     
    Peter Van Der Walt likes this.
  4. Janne Gustafsson

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    Did it work well with inductive switches? Are they less sensitive to EMF?
     
  5. Peter Van Der Walt

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

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    With any EMI problem, its always best to address the source (rather than trying to make every little component around it immune, yet leaving the actual problem to keep spraying EMI out around it)
    Noisy spindle/router? Fix the earthing
    Dust hose building up static? Build a Swing Arm and throw a length of bare copper inside the hose
    Motor wiring crosstalking to the limits wiring? Get another cable chain for a couple bucks, add some spacing between the two sets of wiring.

    Fixing the source (where the noise is coming from) is the way to go.
    Further reading: docs:blackbox:faq-emi [OpenBuilds Documentation]

    Per-se Inductives are not more immune by the way.
     

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