switch question

Discussion in 'General Electronics Chat' started by jludwig83, Aug 22, 2013.

  1. jludwig83

    Thread Starter Member

    Jul 22, 2013
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    Hello I have a question on 3 spdt push button latching switches.............. is there a possible sequence that would allow two on positions and a stop position all controling the same motor
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
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    2,370
    I would expect you would need more than SPDT for interlocking?
    By latching I guess you mean 'Maintained' switches?
    What do you mean by two ON positions, reverse or two speed?
    Max.
     
  3. jludwig83

    Thread Starter Member

    Jul 22, 2013
    33
    0
    ok the switches I have are old and antique and I must use these each switch is in the shape of a rectangle with six pins coming out of the top..... the middle 2 pins are either connected to the front 2 or the back 2 depending on the switch position switch pushed in = front pins switch pulled out = back pins I need the switches to have 3 functions normal operating mode...........a fast mode to set the clock.... and a stop function I cant draw a sketch due to the old nature of the clock and equipment........nothing matches close enough to get an accurate drawing.... I have 2 arduinos controling the normal clock mode and the faster setting mode I can hook both boards to one switch but that doesn't allow me a stop function..........any sequence I have put together results in an option to have both boards on at the same time resulting in a smokey mess..... this probably makes no sense to any of you and I am not sure how to draw this out so any advice or opinions is greatly appreciated
     
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,545
    2,370
    The switches sound more like DPDT?
    You really need 3 posn, centre off if using one switch
    But if you have a Micro doing the logic, then I would think momentary are preferable, and do everything in logic?
    Max.
     
  5. jludwig83

    Thread Starter Member

    Jul 22, 2013
    33
    0
    I have concluded that with my switch set up there isn’t a scenario that allows 2 on positions and an off without the chance of creating a direct short .......I am going to elliminate the off and just have the 2 on positions on one switch
     
    Last edited: Aug 23, 2013
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