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Question Preventing motor drivers from burning up from reverse curreng (regenerative breaking?)

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Ronan Design, Oct 16, 2024.

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  1. Attyla.pl

    Attyla.pl Active Member

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    2DOF, Arduino
    You can place the fuse as you described.
    Attyla.pl, Nov 4, 2024
    #41
  2. Aerosmith

    Aerosmith Active Member

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    My Motion Simulator:
    3DOF, AC motor
    Electrically, it doesn't matter. In a series connection the circuit is interrupted when the fuse blows, no mater if it's placed before or after the rectifier. The reason behind the rule "as close a s possible to the power source" is that the fuse also protects the cables after the fuse. That would be useful if those cables are moving or can be damaged by moving parts.
    Aerosmith, Nov 4, 2024
    #42
  3. Mariano Tarnogol

    Mariano Tarnogol New Member

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    A bit off topic. Im going to switch my 3x ibt2 to cytron md13s.
    Mode 1 in smc3 without modifications works well?
    In your connection diagram i can see you wired the NC pin on cytron boards to a digital pin on arduino. Dofreality leave it unused. Can you explain why?
    Thanks!
    Mariano Tarnogol, Nov 29, 2024 at 02:45
    #43
  4. Ronan Design

    Ronan Design Roman Design - Custom MSFS Scenery

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Yes, mode 1 works. I wired it this way because I found the pinout somewhere on this site. It makes sense, SMC3 has 3 pins used (ENA, ENB, PWN) plus ground. I can't explain why DOFReality doesn't use it...
    Ronan Design, Nov 29, 2024 at 03:08
    #44
  5. Mariano Tarnogol

    Mariano Tarnogol New Member

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    Found that pdf showing wiring. Just want to be sure.
    As for dofreality, they even use encoders and motor brakes, i think they made massive changes on the original smc3 software.
    Mariano Tarnogol, Nov 29, 2024 at 03:14
    #45
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