NPNvsPNP How to test. How to tell the difference.

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  • เผยแพร่เมื่อ 28 พ.ย. 2024

ความคิดเห็น • 4

  • @whistle3man
    @whistle3man 11 หลายเดือนก่อน

    Great video. One question to help me get this straight. If i have a NPN sensor and its flagged, to check it with my multi meter i would put my red meter lead on the positive power supply terminal and the black lead on the prox switch signal out wire i should see roughly +24v. If i have a Flagged PNP sensor then i would put my black meter lead on the negative power supply terminal and the red lead on the sensor signal out wire i should see roughly +24v. If im correct in my thinking then i got it.

  • @sparky5754
    @sparky5754 ปีที่แล้ว

    If I have a prox that is working intermittently, the problem would have to be with the physical position of the switch not wiring correct? For example the bracket holding the sensor is loose and changing position, even slightly. TIA

    • @merchantg
      @merchantg ปีที่แล้ว

      That's the most likely reason. I have seen prox that get intermittent like that.

  • @gregv6912
    @gregv6912 11 หลายเดือนก่อน

    Is this the same as sink and source ?