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    User name N Toro

    Log entry time 14:44:20 on July10,2010

    Entry number 331325

    This entry is a followup to: 331290

    keyword=turn OFF right Q1 regulation

    The Q1 regulation is based on the current read-back, which is off after Jack replaced the control board. Resulting field reading from Q1 hall probe was off by 1%.

    Called John LeRose who said this 1% difference was too large, so we turned off regulation, and tuned current by hand to reproduce the average field from previous runs: about 0.01414.

    The current setpoint we are using is 562.6 A


    FIGURE 1

    FIGURE 2