Need schematic help pls

Discussion in 'Homework Help' started by chrism, Oct 11, 2004.

  1. chrism

    Thread Starter New Member

    Oct 8, 2004
    Hi Forum members

    Could someone please critique my schematic (schematic.jpg) for the following operation that needs to be done (Operation.jpg) and tell me how far off or *cough* how close I am.

    The following Control Considerations also need to taken into account:

    The Operator for his/her safety must keep both hands on the palm-buttons for the durations of the cycle otherwise the machine will not continue it's cycle. Furthermore should the operator tape/tie down either of the palm buttons permanently the machine control must be disabled after the completion of one cycle (Anti-tie down circuit). For the purpose of this simulation the cycle time for one cycle should be approximately at 6 seconds. The machine should not repeat until palm-buttons have been released then initiated again.