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Emergency Stop

Discussion in 'Electronic and hardware generally' started by John Murphy, May 11, 2023.

  1. John Murphy

    John Murphy Member Gold Contributor

    Joined:
    May 11, 2023
    Messages:
    63
    Occupation:
    Tech Exec
    Location:
    Virginia, USA
    Balance:
    390Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor
    I'm building a motion platform and want to add an emergency stop. Some people seem to choose to put stops on the motor side, others on the AC power side. I have decided to put mine on the ac power side and kill everything.

    On the AC power side I also have a few choices...

    - regular emergency stop switch: simple, but in a power outage the device gets repowered when the power comes back on, and additionally all the current is going through the switch.
    - magnetic emergency stop switch: this solves the first problem, a power outage or breaker reset doesn't repower the seat - but all the current is going through the switch.
    - add a NO relay to the magnetic switch - I like this idea, but I have no idea how to wire one. Does anyone have any guidance as to what relay to buy and how to wire it?

    Any suggestions or guidance in this area?
    John Murphy, May 11, 2023
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
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    20,535
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,034Coins
    Ratings:
    +10,776 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    noorbeast, May 11, 2023
    #2
  3. John Murphy

    John Murphy Member Gold Contributor

    Joined:
    May 11, 2023
    Messages:
    63
    Occupation:
    Tech Exec
    Location:
    Virginia, USA
    Balance:
    390Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor
    John Murphy, May 11, 2023
    #3
  4. Gadget999

    Gadget999 Well-Known Member

    Joined:
    Dec 27, 2015
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    London
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    11,610Coins
    Ratings:
    +458 / 9 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    What type of motor driver do you use ?
    Gadget999, May 12, 2023
    #4
  5. John Murphy

    John Murphy Member Gold Contributor

    Joined:
    May 11, 2023
    Messages:
    63
    Occupation:
    Tech Exec
    Location:
    Virginia, USA
    Balance:
    390Coins
    Ratings:
    +19 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor

    (2) Sabertooth 2x32
    John Murphy, May 12, 2023
    #5