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Thread: Clicking sounds

  1. #1
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    Clicking sounds

    So I hooked up a 24v stepdown to 12v coming out of a 1 link port. For. 12v computer fan. All I hear is clicking sounds for the 1link module.
    Anyone know why?

  2. #2
    Master Control Freak RussM's Avatar
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    Most likely, your DIY rig is overloading the ACC output - drawing too much current.
    Please do not send me PMs with technical questions or requesting assistance - use the forums for Apex help. PM me ONLY if the matter is of a private or personal nature. Thanks.

  3. #3
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    When I plug it into a eb8 it works fine

  4. #4
    Master Control Freak RussM's Avatar
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    An EB8 does not have 24VDC outputs. Do you mean EB832?
    Please do not send me PMs with technical questions or requesting assistance - use the forums for Apex help. PM me ONLY if the matter is of a private or personal nature. Thanks.

  5. #5
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    Yes eb832

  6. #6
    Frequent Contributor zombie's Avatar
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    What exactly are you using as a stepdown? It needs to be a buck converter or similar DC-DC converter. If it's a transformer it will short out the port and might explain the problem.

    You might be an engineer if...You have no life and can prove it mathematically.

  7. #7
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    Nextrox DC/DC Converter Regulator 24V Step Down to 12V 20A 240W https://www.amazon.com/dp/B00BWKXTUU?ref=yo_pop_ma_swf
    That’s what I used. Followed a YouTube video of a guy doing this. Only difference he plugged it into the eb832 and I went to a 1link

  8. #8
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    Hi zombie. Which one do you recommend? There are so many I don’t know which one to get off amazon

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    Hi zombie. Which one do you recommend? There are so many I don’t know which one to get off amazon

  10. #10
    Frequent Contributor zombie's Avatar
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    Quote Originally Posted by jgarcia View Post
    Hi zombie. Which one do you recommend? There are so many I don’t know which one to get off amazon
    The one you linked should be fine, but to be abesolutely certain, I would need to know the exact fan you are using and the quantity of them.

    You might be an engineer if...You have no life and can prove it mathematically.

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    Quote Originally Posted by zombie View Post
    The one you linked should be fine, but to be abesolutely certain, I would need to know the exact fan you are using and the quantity of them.

    You might be an engineer if...You have no life and can prove it mathematically.
    Noctua SSO Bearing Fan Retail Cooling NF-R8 redux-1200 https://www.amazon.com/dp/B00KF7T9MI?ref=yo_pop_ma_swf
    And I’m only using 1 fan per step down and only using 2 fans total.
    But maybe more in the future

  12. #12
    Frequent Contributor zombie's Avatar
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    That should definately work then. Those fans only pull 0.5W per fan, so you could get away with quite a few on each converter.

    You might be an engineer if...You have no life and can prove it mathematically.

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    Just got off the phone with neptune.
    Sounded like they were less than happy to help me lol. Cause it’s a diy project.
    They say I’m either over loading it or got a short.
    I soldered all connections and each wire has its own shrink wrap with shrink wrap over that for a clean look. So impossible for a short. And red wire went to red and black to black

  14. #14
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    perhaps a bad DC-DC converter?

  15. #15
    Frequent Contributor zombie's Avatar
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    Make sure the speed return pin is not connected to anything, you have correct polarity, and the speed pin is taped.

    The red wire should go to converter output positive, black to converter output negative, and yellow disconnected and taped (assuming standard 3 pin color code)

    You might be an engineer if...You have no life and can prove it mathematically.

  16. #16
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    so i fixed the issue and it was the converter. the output has to be 12v 5A max... the one i had was a higher amperage
    so now onto coding.
    i need:
    1in_litfan to turn on when my display lights turn on "also stays on when lights turn off when water temp too high
    turn on when water temp to high

  17. #17
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    think i got the codes to work. correct me if im wrong

    1lin_litfan
    If Time 07:00 to 11:00 Then ON
    If Time 11:00 to 07:00 Then OFF
    If Tmp > 79.5 Then ON
    If Tmp < 77.5 Then OFF

  18. #18
    Frequent Contributor zombie's Avatar
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    Quote Originally Posted by jgarcia View Post
    think i got the codes to work. correct me if im wrong

    1lin_litfan
    If Time 07:00 to 11:00 Then ON
    If Time 11:00 to 07:00 Then OFF
    If Tmp > 79.5 Then ON
    If Tmp < 77.5 Then OFF
    Your order is wrong. If you want them to run between 7 and 11 only and between those temps you want.

    1lin_litfan
    If Tmp > 79.5 Then ON
    If Tmp < 77.5 Then OFF
    If Time 11:00 to 07:00 Then OFF

    You might be an engineer if...You have no life and can prove it mathematically.

  19. #19
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    didnt work
    i want it to come on when my lights come on then also be over ridden by temp and come on

  20. #20
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    fixed it. i changed
    If Time 11:00 to 07:00 Then OFF
    to
    if time 07:00 to 23:00 then ON

    this correct?
    i think im learning this coding stuff haha

  21. #21
    Frequent Contributor zombie's Avatar
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    If you want it on from 7am to 11pm or when temp is high, you want this.

    Fallback OFF
    Set OFF
    If Time 07:00 to 23:00 Then ON
    If Temp > 79.4 Then ON
    Min Time 030:00 Then ON

    You might be an engineer if...You have no life and can prove it mathematically.

  22. #22
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    done thx.
    can you quickly explain what fallback is and set is please

  23. #23
    Master Control Freak RussM's Avatar
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    Quote Originally Posted by jgarcia View Post
    done thx.
    can you quickly explain what fallback is and set is please
    Please use available documentation for learning basic things like this. The Comprehensive Reference Manual covers both of these. There are also sticky posts here which cover both in detail.

    "Set" is covered in a post in this thread: https://forum.neptunesystems.com/sho...ad-This-Thread!
    "Fallback" is covered in this sticky: https://forum.neptunesystems.com/sho...About-FALLBACK
    Please do not send me PMs with technical questions or requesting assistance - use the forums for Apex help. PM me ONLY if the matter is of a private or personal nature. Thanks.

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