Relay feed terminal

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  • Hornnumb2
    Badcaps Veteran
    • Feb 2011
    • 210

    #1

    Relay feed terminal

    I have this relay on my tv lift and would like to figure out what voltage is needed to activate the relay. Which terminal do I test. Thanks Michael
  • R_J
    Badcaps Legend
    • Jun 2012
    • 9534
    • Canada

    #2
    The coil voltage will be marked on the relay, The coil is marked by the square simble across the two pins

    Comment

    • Hornnumb2
      Badcaps Veteran
      • Feb 2011
      • 210

      #3
      I am trying to figure out what pin gets the signal to lower or raise the tv lift. I want to use something that when tv is turned on it lowers and raises when turn off. So a separate remote is not needed. The relay states it’s rated for 24vdc but I don’t think it’s running on that.

      Comment

      • truclacicr
        Badcaps Veteran
        • Apr 2019
        • 293
        • australia

        #4
        https://www.generationrobots.com/media/JQC-3FF-v1.pdf

        The coil voltage is 24VDC. The contacts are SPDT.

        Comment

        • Hornnumb2
          Badcaps Veteran
          • Feb 2011
          • 210

          #5
          Still looking for answer to the question, which terminal would I send 24vdc to to click relay on? Thanks

          Comment

          • truclacicr
            Badcaps Veteran
            • Apr 2019
            • 293
            • australia

            #6
            The relay's datasheet shows you the pinout. One end of the coil would be wired to +24VDC, the other would be connected to a switching transistor or IC. We can't tell much from your limited photo. Basically, you need to trace the circuit to understand what is going on.

            Comment

            • R_J
              Badcaps Legend
              • Jun 2012
              • 9534
              • Canada

              #7
              It is likely that one side of the relay coil is connected to the +24v supply and the other end of the coil is connected to a transistors collector,and the transistors emitter connects to ground (negative of the 24v supply) The base of the transistor could be controlled by a low voltage ie:3~5volts from what ever controls this board. If this is the case there will likely be a diode across each relay coil as well. A picture of the back of the board will help as well as knowing what those plugs connect to.

              Comment

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