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Resolved Second PSU?

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Nicki9knuckles, Mar 23, 2023.

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  1. Nicki9knuckles

    Nicki9knuckles Active Member

    Joined:
    Sep 1, 2022
    Messages:
    172
    Occupation:
    Web Developer
    Location:
    Dartmouth, Nova Scotia, Canada
    Balance:
    574Coins
    Ratings:
    +73 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Motion platform
    Hey all,
    I have a 2 DOF rig with a 3rd motor for traction loss. I have 3 - 180w 12v 50:1 motors. Right now I run everything off a single 600w-12v PSU like this one:
    Screenshot 2023-03-23 at 1.46.43 PM.png
    And honestly it runs pretty good this way. I am having a few issues with one of the motors used in the 2 DOF part where if that motor is sustaining a lot of load everything shuts down for a second. But then comes back on again a second later. This sounds like I am tripping the PSU to me. I guess it could be the IBT-2 shutting down as well, but the fact that I can sometimes hear the PSU fan stop for a second makes me think its an underpowered PSU issue.

    My question is do you think I would solve this issue by adding a second 600w psu and running one of the 2DOF motors plus traction loss motor to one, and the other 2DOF motor plus my IBT-2 cooler fan to the other?

    Thanks!
    Nicki9knuckles, Mar 23, 2023
    #1
  2. Gadget999

    Gadget999 Well-Known Member

    Joined:
    Dec 27, 2015
    Messages:
    1,935
    Location:
    London
    Balance:
    11,838Coins
    Ratings:
    +473 / 9 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    It may work, but in my experience the ibt2 is not powerful enough
    Gadget999, Mar 24, 2023
    #2
  3. Nicki9knuckles

    Nicki9knuckles Active Member

    Joined:
    Sep 1, 2022
    Messages:
    172
    Occupation:
    Web Developer
    Location:
    Dartmouth, Nova Scotia, Canada
    Balance:
    574Coins
    Ratings:
    +73 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Motion platform
    thanks for the reply @Gadget999
    What have you used in place of them? And do you know if there is any instructions on here for how to wire the alternative?
    I was considering chaining 2 ibt’s together, I found a wiring diagram on here for that and it seems pretty straight forward.
    Nicki9knuckles, Mar 24, 2023
    #3
  4. Gadget999

    Gadget999 Well-Known Member

    Joined:
    Dec 27, 2015
    Messages:
    1,935
    Location:
    London
    Balance:
    11,838Coins
    Ratings:
    +473 / 9 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    Look at my build - they can deliver 100 amps

    Use a car battery to supply plenty of current - the power supply keeps it topped ;)
    Gadget999, Mar 24, 2023
    #4
  5. Nicki9knuckles

    Nicki9knuckles Active Member

    Joined:
    Sep 1, 2022
    Messages:
    172
    Occupation:
    Web Developer
    Location:
    Dartmouth, Nova Scotia, Canada
    Balance:
    574Coins
    Ratings:
    +73 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Motion platform
    Just to follow up on this, in the end, I bought a second PSU, and connected 2 motors to it and connected 1 motor to my existing PSU. I also added a second IBT-2's to each motor. So they are chained together.
    Since doing this, I have had no issues with shut downs. I've also been able to run my Sim rig with someone much heavier than myself in it, and the motors have not had any trouble.
    Nicki9knuckles, Apr 14, 2023
    #5