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2DOF 3phase motors

Discussion in 'DIY Motion Simulator Projects' started by Valentin1985, Feb 5, 2023.

  1. Valentin1985

    Valentin1985 New Member Gold Contributor

    Joined:
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    +4 / 0 / -0
    My Motion Simulator:
    2DOF, AC motor
    Hello everyone
    I am building a motion platform on three phase motors.
    Controlled by SMC3
    The platform is almost built. There are some minor management issues. I want to use a platform with glasses. But when the Oculus quest 2 motors are running, it issues a communication error with the computer

    Attached Files:

    Valentin1985, Feb 5, 2023
    #1
  2. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    What type of motor controller do you use ?
    Gadget999, Feb 5, 2023
    #2
  3. Valentin1985

    Valentin1985 New Member Gold Contributor

    Joined:
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    Balance:
    - 60Coins
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    +4 / 0 / -0
    My Motion Simulator:
    2DOF, AC motor
    Arduino uno and homemade shield pwm-analog. Lm358

    Attached Files:

    Valentin1985, Feb 5, 2023
    #3
  4. zapata_h

    zapata_h Active Member

    Joined:
    Dec 25, 2013
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    Occupation:
    Industrial Maintenance Manager
    Location:
    España
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    +43 / 0 / -0
    My Motion Simulator:
    3DOF, AC motor, Arduino
    Three-phase motors with vdf generate a lot of electrical noise
    zapata_h, Feb 5, 2023
    #4
  5. Gadget999

    Gadget999 Well-Known Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    Do you provide a 0-10v signal to the vfd ?
    Gadget999, Feb 5, 2023
    #5
  6. Valentin1985

    Valentin1985 New Member Gold Contributor

    Joined:
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    My Motion Simulator:
    2DOF, AC motor
    This frequency converter uses a 5 volt analog input. On the board, I did not provide an opto-link to the operational amplifier. I'll redo the board soon.
    The oscilloscope shows small fluctuations on the 5 volt line. I tried to install capacitors on the power supply.It got better but the problem remained
    Last edited by a moderator: Feb 5, 2023
    Valentin1985, Feb 5, 2023
    #6
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Innovative tech specialist for NGOs
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    St Helens, Tasmania, Australia
    Balance:
    145,136Coins
    Ratings:
    +10,779 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    What exactly is the communication error, is it a USB disconnect or something else?
    noorbeast, Feb 5, 2023
    #7
  8. Valentin1985

    Valentin1985 New Member Gold Contributor

    Joined:
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    - 60Coins
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    My Motion Simulator:
    2DOF, AC motor
    I tested on the epic roller coaster. The game starts. When the motors start moving, an error occurs - the connection to the computer is interrupted. This connection can be resumed and the game will continue. After a few seconds, the error repeats. The glasses are connected via a link usb 3.0 cable
    Valentin1985, Feb 5, 2023
    #8
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
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    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,136Coins
    Ratings:
    +10,779 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Please post a picture of the full error.
    noorbeast, Feb 5, 2023
    #9
  10. Valentin1985

    Valentin1985 New Member Gold Contributor

    Joined:
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    Balance:
    - 60Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    2DOF, AC motor
    The error appears in the glasses - the computer is not connected. I can't take a screenshot
    Valentin1985, Feb 6, 2023
    #10
  11. zapata_h

    zapata_h Active Member

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    Industrial Maintenance Manager
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    +43 / 0 / -0
    My Motion Simulator:
    3DOF, AC motor, Arduino
    And it only appears when the engines are running? There must be some conflict with the USB, you can try running simtools on 2 PCs to avoid usb problems
    zapata_h, Feb 6, 2023
    #11
  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
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    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,136Coins
    Ratings:
    +10,779 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Try disconnecting the HMD, does the error still occur and if so please post a screenshot.

    If it is a USB disconnect, then see the FAQs here, as HMDs can use a lot of USB bandwidth, and computers often share controllers between external ports: https://www.xsimulator.net/community/reports/785/
    noorbeast, Feb 6, 2023
    #12
  13. Valentin1985

    Valentin1985 New Member Gold Contributor

    Joined:
    Apr 5, 2022
    Messages:
    11
    Balance:
    - 60Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    2DOF, AC motor
    The problem is most likely interference. I redid the board, added an optocoupler to pwm - analog. It did not help. I can attach oscillograms if necessary, but when the motors are running. Interference can reach one volt. Now I plan to put the frequency converters in an iron box. I tried to isolate the control board, which did not bring the desired result.
    Please look at the delay in work. This is fine? Who faced? I looked through the entire forum, but there is little information on the vfd motor

    Attached Files:

    Valentin1985, Feb 9, 2023
    #13
  14. zapata_h

    zapata_h Active Member

    Joined:
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    Occupation:
    Industrial Maintenance Manager
    Location:
    España
    Balance:
    307Coins
    Ratings:
    +43 / 0 / -0
    My Motion Simulator:
    3DOF, AC motor, Arduino
    We assume that motors and drives are grounded
    zapata_h, Feb 9, 2023
    #14
  15. Valentin1985

    Valentin1985 New Member Gold Contributor

    Joined:
    Apr 5, 2022
    Messages:
    11
    Balance:
    - 60Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    2DOF, AC motor
    Of course they were grounded. I needed to additionally shield the signal wires. After changing the box and shielding, everything worked perfectly. There is no interference at five volts. Glasses no longer fall off. Thanks to all who responded.

    Attached Files:

    • Like Like x 3
    Valentin1985, Feb 11, 2023
    #15
  16. zapata_h

    zapata_h Active Member

    Joined:
    Dec 25, 2013
    Messages:
    221
    Occupation:
    Industrial Maintenance Manager
    Location:
    España
    Balance:
    307Coins
    Ratings:
    +43 / 0 / -0
    My Motion Simulator:
    3DOF, AC motor, Arduino
    I'm glad it's working properly
    zapata_h, Feb 12, 2023
    #16