how to disable shutdown in sg3525ap

Discussion in 'The Projects Forum' started by drin_pogi, Oct 26, 2010.

  1. drin_pogi

    Thread Starter New Member

    Oct 26, 2010
    2
    0
    how to bypass shutdown in sg3525ap? i would like to make my circuit on and off only.

    BTW: my circuit is from APC UPS ES-500. every 20 - 30 minutes the inverter is automatically shutdown. how to bypass or disable this shutdown function and make it on and off using ordinary SPST switch? thanks. suggestion are all welcome

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    PIC use is PIC16c72a
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,638
    2,344
    Hello,

    Is there no description in the manual how to change the settings?
    Disabeling the shutdown might lead to a to deep discharged battery when power is lost.

    Bertus
     
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  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,672
    899
    From Freescale:
    As you can see, there are multiple ways to shut down the chip and/or reasons it might shut down. Your inverter looks like a commercially made circuit, so I assume that the reason is not letting Pin 10 float.

    Thus, disabling shut down could lead to failure to respond to a dangerous condition and destruction of the inverter and/or items being powered by it. A more productive route would be to find out why it is shutting down, such as overload, low input voltage, overheating, etc.

    John
     
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  4. drin_pogi

    Thread Starter New Member

    Oct 26, 2010
    2
    0
    @2 Bertus

    No description on manual.
    I'm not worrying to deeply discharge the battery because the inverter is connected after the charge/monitor controller.
     
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