Siemens Micromaster 420 0.75kW Inverter Drive

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  • luizdiefenbach
    New Member
    • Jun 2015
    • 4
    • Brasil
    #1

    Siemens Micromaster 420 0.75kW Inverter Drive

    Hello I am trying to repair a Siemens drive.
    On visual inspection i found a missing component
    The main board MCU crystal is missing, does anyone know the frequency of this crystal?

    thanks

    Click image for larger version Name: MM420Crystal.jpg Views: 329 Size: 2.31 MB ID: 3466622
    Tags: None
    • R_J
      Badcaps Legend
      • Jun 2012
      • 9588
      • Canada
      #2
      The ic seems to be a Siemens H1746RUNS3, I found photos but can't read the xtal

        Comment

        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 31187
          • Albion
          #3
          got photo links?

            Comment

            • luizdiefenbach
              New Member
              • Jun 2015
              • 4
              • Brasil
              #4
              Its a 16Mhz crystal! 😁

                Comment

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