Ladder Logic for a conveyor belt

Discussion in 'Homework Help' started by dukeofsmooth, Feb 19, 2009.

  1. dukeofsmooth

    Thread Starter New Member

    Feb 5, 2009
    I need help designing a ladder logic circuit for a conveyor motor. The circuit must have one on-delay timer and one off-delay timer. When the start button is pressed, a horn and siren must go off for 10 seconds then the conveyor motor starts. When the stop button is pressed, the conveyor motor runs for 10 seconds then turns off.

    Thank you,
  2. Wendy


    Mar 24, 2008
    I think I've got the time delay relays wrong, it's been several decades (as in 3) since I've worked with this stuff.

    1st assumtion, The time delay relay delays energization for 10 seconds after getting the signal. I think this may be wrong.

    2nd assumtion, the time delay relay requires power while it is timing.

    Let me know how they work and I'll try correcting it. I figure it will give you some idea in the meantime.



    Hmmm, nope, that ain't it. Let me look at it some more. K3B isn't right.
    Last edited: Feb 19, 2009