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Thread: sp st momentary contact that looks like sp

  1. #11
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    Quote Originally Posted by kwired View Post
    Sounds like that is what was specified, but what was installed is a typical maintained both ways toggle switch.
    I'm confused. What is 'both ways'?

  2. #12
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    Quote Originally Posted by 480sparky View Post
    I'm confused. What is 'both ways'?
    What was specified was a decora style momentary contact switch, he had a link to that product info. There is only two positions the switch can be in, one of them is a "held" position, when you stop holding it has spring return to the other position. The contact (I am presuming on this model) is closed when you place it into the "momentary" position, it didn't really specify in the page linked to, but that is all I have seen for similar style switches.
    I live for today, I'm just a day behind.

  3. #13
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    Quote Originally Posted by kwired View Post
    What was specified was a decora style momentary contact switch, he had a link to that product info. There is only two positions the switch can be in, one of them is a "held" position, when you stop holding it has spring return to the other position. The contact (I am presuming on this model) is closed when you place it into the "momentary" position, it didn't really specify in the page linked to, but that is all I have seen for similar style switches.
    Like a 'disposal' switch.........

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    Quote Originally Posted by 480sparky View Post
    Like a 'disposal' switch.........
    Yes
    I live for today, I'm just a day behind.

  5. #15
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    Quote Originally Posted by sameguy View Post
    https://www.leviton.com/en/products/1257
    Look around till you find your switch, looking in the McGill switch catalog will help you see the different types of contact configuration; you can use a double pole as a single pole too.
    thats what i think was installed
    because it will spring back from top or bottom

    only the bottom seems to have a wire hanging on it

    I want to change it to a single bump that picks the control board, puts it thru its paces like shown in the specd sw
    thanks
    "A problem clearly stated is a problem half solved."

  6. #16
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    190417-2410 EDT

    wyreman:

    Your first and subsequent posts are totally incomprehensible.

    1. How many incoming circuits come to this switch? If just one, then it is a single pole switch.

    2. For each input pole how many different output paths are there? Might be described as to how many throws. A rotary selector switch can have many positions. For example a single pole four output selector with 16 input mechanical positions and binary coded output.

    3. How many mechanical input states are there? For example exerted and not-exerted. An ordinary mechanical SPST toggle switch would have two stable mechanical input positions, on and off. A simple pushbutton single pole switch might be normally open, push to close, and spring return to open. Another type of pushbutton might produce a short time closure on pushing, but after the time delay opens even while the button is still pressed, and is spring returned to reset to operate again after release of the button.

    You have to define how many poles are required and what mechanical to electrical function is to be performed. Start by defining how this entire circuit is to work with respect to time, mechanical inputs, and electrical outputs.

    Break it down into simple time sequence functions.

    .

  7. #17
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    Quote Originally Posted by gar
    wyreman:

    Your first and subsequent posts are totally incomprehensible.
    Yeeeeup!

    He needs to study up on switch nomenclature.

    -Hal

  8. #18
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    Disposal

    I have an LED control board that is listening for
    momentary pulses of 110 VAc current.
    The control board has a second source of 110v
    going directly to an attached LED driver

    Circuitboard is programmed to pass through the
    24vdc from LED driver
    Outputting different patterns of 24vdc
    depending on the number of pulses received.
    For example one pulse of more than two seconds
    might give you dimming
    release the contact and then reapply
    the similar pulse more than two seconds
    would give you brightness.
    Three pulses might give you the top middle bottom strands
    Being energized
    four pulses might alternate through different patterns
    six pulses might change the program.

    The circuitboard is looking for pulses and modulates
    the output of the independent LED driver.
    depending on the quantity and duration of
    the momentary control voltage pulses


    When the control board receives a pulse
    That has a corresponding program
    it
    Sends the
    outputs from the driver to attached LED Strands
    These LED strands then produce various types Of
    twinkles and shimmies
    Believe that’s the correct technical term

    It doesn’t really matter


    because my question was much simpler
    and that is I believe
    Somebody has installed a
    2p momentary contact switch w center off

    When
    a disposal switch.
    Would make signaling for the untrained user
    much simpler

    I just didn’t know there was a simple disposal switch
    Avail which was specified but not installed

    Thanks for your help.
    "A problem clearly stated is a problem half solved."

  9. #19
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    Why do I have to go searching for the spec sheet? https://image.ylighting.com/is/conte...161751_specpdf

    Looks like they are calling for an on-off SPST switch and a momentary NO push button. They have them separate on a single plate. 4 conductors from the fixture.

    I don't know how you would do that with a single switch.

    -Hal

  10. #20
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    190418-2359 EDT

    wyreman:

    Your motto is "A problem clearly stated is a problem half solved."
    Why did you not follow it? You could have easily solved your problem without ever asking the forum.

    .

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