Mitsubishi FX20 - problem after relocation, upper head float alarm
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  1. #1
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    Default Mitsubishi FX20 - problem after relocation, upper head float alarm

    Hello all

    we bought mits fx20 1997, in seller's garage the machine was working. After relocation and installing machine we have problem with alarm "U730 T/C in wasser 0000" which inform that upper head is in water or there is a problem with float in upper head. I checked the wires and float, it's ok, cables from float to board are in good condition and when i move float up and down the state on connector (that goes to SIFA board) changes. So the float and wires are ok.
    Software was reinstalled.

    1. We don't have any diagrams and other service manuals, only programming manual. Maybe somebody have some docs or knows where get them?
    2. There are addresses in machine software with input/output bit map (1/0) but i didn't find correct address that shows the state of the float/limit switches or other inputs which are in connector M1 so i didn't check what is the state of float in machine controller. If somebody have correct bit map to FX machine could share it?
    3. Any ideas what can i check?

    Best regards

  2. #2
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    Default

    I checked everything twice and the addresses are good but not all.
    As you see on photo
    A90000 looks ok, but next row which first bit (bit F) is upper head float state is 0 bits_mitx_fx20.jpg

    i enclose photo with other addresses img_20180917_085051.jpgimg_20180917_085156.jpg

    Any ideas?

    Best Regards


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