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PSU problem

Discussion in 'Electronic and hardware generally' started by evolaco, Jul 26, 2017.

  1. evolaco

    evolaco Member

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    3DOF
    Hi, I use a PSU DPS800GB A and a battery of 12v 7A that I use in parallel to absorb the voltage peaks of the motors (before the tension was raised and I burned the fans), the problem is that in a few minutes the source To and will not reboot until I re-start the starter pins, my motors are about 15A, and I have 25A fuses that have not been burned, I do not understand that it stops having the help of the battery, when it stops almost You can see why the battery continues and with its 7a moves the motors perfectly
  2. NjMotion

    NjMotion Active Member Gold Contributor

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    Hi,

    The battery is 7ah but the amount of current it can give is much higher (starting amps). The source is protected by the changes of direction of the motors (they have very high peaks of consumption) although having the battery should not have problem. You can test a large capacitor (s) at the source outlet and stabilize the current (this should be done by the battery).
    The battery may be in poor condition.

    Spanish.
    La batería es de 7ah pero la cantidad de corriente que puede dar es muchisimo mayor (amperios de arranque). La fuente se protege por los cambios de dirección de los motores (tienen unos picos muy altos de consumo) aunque teniendo la batería no debería haber problema. Puedes probar poniento un o unos condensadores grandes a la salida de la fuente y así estabilizaría mucho la corriente (aunque eso ya lo debe estar haciendo la batería).
    Puede que la batería esté en mal estado.
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  3. evolaco

    evolaco Member

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    Thanks for the answer, the battery is new and seems to work fine, she alone can move the motion without problems, the motors never go 25a each because they do not burn fuses, an 82A source should be able to withstand, use ibt2 and Have not burned, I doubt that there are many amps in use, because overheating could be? Should not be a PSU server either ..

    Spanish
    gracias por la respuesta, la bateria es nueva y parece funcionar bien, ella sola puede mover el motion sin problemas, los motores no pasan nunca de 25a cada uno porque no se queman los fusibles, una fuente de 82A deberia poder aguantar, uso ibt2 y no se han quemado, dudo que hayan muchos amperios en uso, por sobrecalentamiento podria ser? no deberia tampoco siendo una PSU de servidor..
  4. NjMotion

    NjMotion Active Member Gold Contributor

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    I think I have 16v capacitors in parallel with the welded cables, ready to connect. I'm going to look for them tomorrow, if I find them, you give me your address and I'll leave them to try.

    Spanish
    Creo que tengo unos condensadores de 16v en paralelo con los cables soldados, listos para conectar. Los voy a buscar mañana, si los encuentro, me pasas tu dirección y te los dejo para probar.
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  5. NjMotion

    NjMotion Active Member Gold Contributor

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    Put the battery cables shorter and if you can put them more section and test well. If everything goes well, you decide whether to put the capacitors or not.
    The used ones do not find them but new ones I have at least 15, so there is plenty.

    Spanish
    Pon los cables de la batería mas cortos y si puedes ponlos de más sección y pruebas bien. Si va todo bien, tú decides si pones los condensadores o no.
    Los usados no los encuentro pero nuevos tengo por lo menos 15, así que hay de sobra.
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  6. evolaco

    evolaco Member

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    At the moment I have not had problems with the shorter cables, to see if this way does not fail

    spanish
    De momento no he tenido problemas con los cables mas cortos, a ver si asi no falla
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