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    User name jpchen

    Log entry time 06:34:46 on February25,2011

    Entry number 348542

    keyword=cryo target fan/lifer control reset

    After power outage, fan controllers were off, lifter controller was hang. CHL crashed. ESR was initially working and 15K supply temperatture went down from 13.5 to below 11K, and flow increased autonatically, which caused both loops temperature dropped. TO closed J-T to avoid freezing. Later 15K supply temperature incresed to 25K.
    Both loops warmed up. I went into the hall, reset fan controller and set both loop fans to 6% (14Hz). Also rebooted ioc to get the lifter control back, moved to empty position.
    Need to wait for ESR coming back. Then we can have the target cool-down again.