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    8/01/2022 4:42 PM  #1

    Raymond_B
    Senior 24-7 FYI Addict

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    From: Fort Worth, TX
    Registered: 4/01/2013
    Posts: 1,203

    Thought I'd Share

    One day I will actually post Mustang stuff here, I promise

    Anyway I know this will not sit well with the non-EFI crowd, however I do feel this takes a step in the KISS direction somewhat and when I do get to my Mustang I am going to use one for the entire vehicle. It is just so easy.

    I am blabbering about a new item I installed in my Lightning which is a PDM (power distribution module). So far I love it! No more fuses or relays, I can log how much current each item is pulling and the status of that item. I am also using it to PWM control my fans and fuel pump. It is also integrated over CAN and talks to the Megasquirt so you can gather all kinds of data like engine temp, RPM, A/F, etc etc. That comes in handy when you want the fan to come on at a certain temp or to come on with the A/C, or to spin the fuel pump at a lower rate when idling to keep fuel cool. Tons of possibilities with whatever logic you want to use.

    Before (I've pulled out more since this pic was taken):



    During install 


    Got it started today! Still more work to do.
    https://youtube.com/shorts/A88P2xBRKM4?feature=share

    Last edited by Raymond_B (8/01/2022 4:49 PM)

     

    8/01/2022 9:32 PM  #2

    Nos681
    Senior 24-7 FYI Addict

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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,329

    Re: Thought I'd Share

    Ok, I’ll bite…how simple is it to program?

    Can you bypass if a ckt is dead or won’t reset?
    Can more than one module be used?….assuming yes with can bus…which I have no experience with besides stuff not working on GM vehicles.

    There is one called ISIS, is that similar?

    My Supervisor has something similar in his Experimental aircraft for his electrical distribution….of course probably 8x the price.

    Can it be programmed without a computer?
    Can adjustments be made on the fly?

    Appears to be all solid state electronics.

    Last edited by Nos681 (8/01/2022 9:38 PM)

     

    8/01/2022 9:48 PM  #3

    Raymond_B
    Senior 24-7 FYI Addict

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    From: Fort Worth, TX
    Registered: 4/01/2013
    Posts: 1,203

    Re: Thought I'd Share

    Nos681 wrote:

    Ok, I’ll bite…how simple is it to program?

    Can you bypass if a ckt is dead or won’t reset?
    Can more than one module be used?….assuming yes with can bus…which I have no experience with besides stuff not working on GM vehicles.

    There is one called ISIS, is that similar?

    My Supervisor has something similar in his Experimental aircraft for his electrical distribution….of course probably 8x the price.

    Can it be programmed without a computer?
    Can adjustments be made on the fly?

    Once you learn how to navigate the software, yes it is straight forward. You basically set a "fuse" value, then a peak value, how long it can stay at that peak, a reset time and a number of times it can try to reset. For example my fans have a 20A "fuse", 50A peak (for inrush), 300ms for that 50A, 3 retries if it pops and 5 sec between each retry. Now where you can get tripped up is if you try to get fancy as you can program all kinds of logic statements like AND, OR, >, <, _ etc etc. 

    If a circuit is having issues you can repeatedly reset or even change the values, but I imagine that would be asking for issues. You can tie to outputs together and they will share the electrical load. I imagine if whatever you were running did not go over a single pin's continuous current you could have redundant circuits that way. Hmmmm that's interesting Hadn't thought about that.

    You can have multiple, but you'd have to connect to each one individually. That particular company makes them in a 10, 15, and 25 output setup. 

    I have not heard of a PDM called ISIS, 'gonna Google that (in safe mode LOL).

    It does need a PC for programming, although the guys mentioned something about a Bluetooth serial program, I haven't looked at that. **However** you can send it commands over CAN, a lot of folks run CAN keypads and run the whole vehicle from there (starter, lights, wipers, etc etc). 

    Yeah you can write to it while it's in operation, it also has some really nice datalogging. 
     

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