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Thread: Outputs don't have enough power to push relays

  1. #21
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    Feb 2010
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    Re:Outputs don't have enough power to push relays

    Hello Everyone,
    I have just received my new FB4 and hooked it up, it seems to be OK except for the low volts on the output when relay is on. I have 12.06 volt at the battery supply and 7.8 volts across relay when it is turned on then. The relay keeps turning on and off. I have the jumpers on the 12 volt side on the board.
    Can someone help? I can not find the solution in the forms, except maybe a bad FB!?
    Thanks
    Russie

  2. #22
    Fusion Brain Creator 2k1Toaster's Avatar
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    Mar 2006
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    Colorado, but Canadian!
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    Quote Originally Posted by Russie View Post
    Hello Everyone,
    I have just received my new FB4 and hooked it up, it seems to be OK except for the low volts on the output when relay is on. I have 12.06 volt at the battery supply and 7.8 volts across relay when it is turned on then. The relay keeps turning on and off. I have the jumpers on the 12 volt side on the board.
    Can someone help? I can not find the solution in the forms, except maybe a bad FB!?
    Thanks
    Russie
    Is it a relay that we provided? Can you test it from a true non-battery source? How many relays are you trying to turn on at once? Does it happen on all ports, or just the one?
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  3. #23
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    Feb 2010
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    6

    Relays dropping out

    Thanks for the reply,
    I have tried relays on all ports and all make the relay click on and off.
    I am connected to a good 12 volt dc battery, ( will find a 12 volt a/c adaptor and try that and let you know what happens)
    All the leds blink every few seconds if on 12 volts or USB (no relays connected on USB of course)
    There are 3 leds not working at all!!
    Sorry this is not working as I am very excited as to this will be what I need for my project.
    Any help will be appreciated!!!!
    Thanks
    Russie

  4. #24
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    Feb 2010
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    Sorry missed your question,
    Yes they are relays from you guys (10 pack with the brain) and I'm only trying one most times and have tried two and they both do the same thing. I have battery volts between relay + and ground but only 7 or 8 volts across relay terminals when on!
    Russie

  5. #25
    Fusion Brain Creator 2k1Toaster's Avatar
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    Mar 2006
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    Colorado, but Canadian!
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    Is this is a fully functional or semi-defective brain? How are you controlling the relay software wise?
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  6. #26
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    Join Date
    Feb 2010
    Posts
    6

    Relays dropping out

    Hi again,
    Yes this suposed to be a fully functional brain not semi defective although it seems like it is one!! I'm controlling the relays with the Fusion control center MDX software.
    My order number is 649 and 650 ( just ordered Jan 30-2010) Just received and only been connected to computer to test run.
    Thanks
    Russie

  7. #27
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    Feb 2010
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    2K1
    Tried with a power supply and the same thing happens (relay clicks on and off) and leds
    blink every few seconds.
    Is there something you can do for me?
    Thanks
    Russie

  8. #28
    Fusion Brain Creator
    Join Date
    Mar 2005
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    2,221
    Quote Originally Posted by Russie View Post
    Hi again,
    Yes this suposed to be a fully functional brain not semi defective although it seems like it is one!! I'm controlling the relays with the Fusion control center MDX software.
    My order number is 649 and 650 ( just ordered Jan 30-2010) Just received and only been connected to computer to test run.
    Thanks
    Russie
    We'll swap this out for a new one. Email us. (I think I'm replying to your email now, shoot us an email if not)

  9. #29
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    Jan 2010
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    This sounds like the problem I've been having. I ordered at the beginning of january. I've tried 3 different computers making sure it's not software, as well as 2 different 12v power sources. I've tried all options and I think there's something going on with the hardware.

    greenman and 2k1:
    I sent a message to you through the website... let me know if sending my brain back to you for replacement is what i need to do.

  10. #30
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    Join Date
    Feb 2010
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    6
    Russie Back again,
    Have finally received my replacement F4 Brain and connected it to my computer without
    relays and the Leds begin blinking after a few seconds!! Connected two relays and
    12v power supply, relays begin clicking on and off after a few seconds!! Same problem I
    had with my first F4 Brain.
    Can anyone help??
    Thanks Russ

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