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    User name Jin Huang

    Log entry time 21:00:04 on June27,2010

    Entry number 328802

    This entry is a followup to: 328794

    keyword=Q1 current was unstable, solved

    Q1 current has been oscillation since set momentum to 1.131GeV at 5:03PM. It's oscillation with a period of 40s. Triggering alarm at max and min. This problem was solved by manually setting current to match setpoint then turning on regulator.

    Q1 current history was shown as blue curve of folloing plot.

    FIGURE 1