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    NPN Proximity sensor endstop

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    Duet Hardware and wiring
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    • mokkaundefined
      mokka
      last edited by

      Hello,

      I am trying to connect a NPN, normally open proximity sensor to my Duet 2 Wifi. The operating voltage is 5 to 60 V.

      5 V and GND are attached to the always on fan pins and the black wire of the sensor to the "Z STOP" pin.

      The sensor is not working and the Z endstop led on the board is on.

      How to wire this kind of sensor? I read the Wiki about Connecting a Z probe, but I am trying to use the sensor as endstop.

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        How do you have your endstops configured?
        What firmware version and Duet board are you using?

        Z-Bot CoreXY Build | Thingiverse Profile

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        • mokkaundefined
          mokka
          last edited by

          In config.g:

          M574 X1 Y1 S1
          M574 Z1 S0

          Board: Duet WiFi 1.02 or later
          Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 2.05.1 (2020-02-09b1)

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          • mokkaundefined
            mokka
            last edited by

            I noticed today that when the sensor is attached the endstop led gives just a bit of light.

            When I connect a photomicrosensor everything works well.

            Does anyone have an idea?

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              Checking...

              Z-Bot CoreXY Build | Thingiverse Profile

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