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    User name folts/fansler

    Log entry time 14:33:00 on April18,2004

    Entry number 118490


    keyword=septum control freeze

    attempted remote reboot of PLC no go
    accessed Hall and noted no run light on PLC cycled power no go
    no power to power supplies
    called Mark he said it looked like software in PLC was fried and to call Heidi
    Called in Heidi and she reinstalled PLC software and the controls returned however on ramp up of magnets power supplies both faulted

    Heidi reloaded the software from disk both power supplies rampped to desired amperage.

    septum control PLC seems to be very radiation sensitive we need to shield it at the first opportunity

    FIGURE 1