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Thread: DSATX 220 watt Automotive Power Supply

  1. #31
    Constant Bitrate
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    Well, I changed the batteries today and it would still turn off the PC while cranking. Then I changed random settings on the DSATX and it turned out the problem was gone when I doubled the default value (50) of ACCTIMEVAL to 100. Not quite sure what that setting does, but it works.
    The batteries were shot in any case, so no loss.

  2. #32
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    Alright, so I played with the settings of the DSATX a bit more and I am quite confused.
    The ACCTIMEVAL not only seems to affect the time it allows to crank the engine, but also the delay before the DSATX will will start the PC (and I think even shut it down).
    So if I put in a value of 150, it will give me time to crank the engine 1.5 secs before it will turn off my PC, but it will also cause a delay of 1.5 secs before the PC is started after I turn on the ignition, and also after I turn off the ignition before the DSATX turns off the PC.
    Is there any way to separately adjust those times?
    I tried the other options like TURNONDELAY, TIMER1EE or VOLTSTHYST, but those dont seem to override what ACCTIMEVAL does, nor do they help if I leave ACCTIMEVAL on the default value.
    Last edited by Gullimonster; 10-25-2014 at 07:15 AM.

  3. #33
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    Well, looks like it was my car all along. When cranking the engine it turns off all ACC sources. I took the ACC signal for the DSATX from a line that also turns off, so of course the DSATX will then send a pulse to turn off the PC when ACC goes away.
    Anyway, I thought the DSATX registers that and will prevent it?

  4. #34
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    Quote Originally Posted by Gullimonster View Post
    Well, looks like it was my car all along. When cranking the engine it turns off all ACC sources. I took the ACC signal for the DSATX from a line that also turns off, so of course the DSATX will then send a pulse to turn off the PC when ACC goes away.
    Anyway, I thought the DSATX registers that and will prevent it?
    It will register that and send the pulse to the motherboard with a delay (which can be set with on the dsatx with P1 (0-20 minutes). Your wiring is correct. You should turn P1 more to set more delay for the turn of pulse.

  5. #35
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    Quote Originally Posted by Nomader View Post
    It will register that and send the pulse to the motherboard with a delay (which can be set with on the dsatx with P1 (0-20 minutes). Your wiring is correct. You should turn P1 more to set more delay for the turn of pulse.
    That delay also affects the normal shutdown, but I want it to shut down quickly when I take the key out.

  6. #36
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    So does anyone have a suggestion how I can keep the ignition signal active while cranking without affecting the normal cycle? Voltage is completely shut off when cranking. I expected the DSATX to act like the Mx-ATX PSUs, which will keep running even when the ignition signal shuts off during cranking.

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