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    User name Yi Qiang

    Log entry time 14:24:20 on November 18, 2008

    Entry number 249560

    Followups:

    keyword=Spin Flip Error

    At 13:40, Lingyan (TO) received the error message from auto spin flip VI so she called me in. The problem seems to be the crash of the spin flip main.vi, so I first closed all LabView programs, then restarted the spin flip main.vi. The previous error is gone. However, we got error message on the Q-wave plate limit switches. After a couple of attempts to do automatic calibrations, I decided to reboot the Q-wave plate motors. After this reboot, I restarted the spin flip code, reset the pumping state to -1, did a manual flip. Everything looks normal now. Therefore I continued the automatic spin flip sequence 248 and ask Ole to start the production data taking.

    The polarization after all these mess is 60%.

    Related error message are shown below:

    13:35:16 11/18/2008 Info Flip Finished

    13:35:46 11/18/2008 Error Auto Report : Error Code = 2; Description = Open VI Reference in Reporter Generator.vi->SystemStatusManager.vi->Spin Flip Main.vi

    13:35:47 11/18/2008 Warning An Error Accured and Auto Flip is Paused. To Enable it again, Please Swich Off "Auto Flip" Button on Main Control Window, then switch On

    13:35:48 11/18/2008 Error Read Error : Error Code = 2; Description = Open VI Reference in SystemStatusManager.vi->Spin Flip Main.vi

    13:35:48 11/18/2008 Error Error Report : Error Code = 2; Description = Open VI Reference in Reporter Generator.vi->Spin Flip Main.vi

    ...

    13:58:33 11/18/2008 Error Limit Switch Check Failed for device 0338

    13:59:03 11/18/2008 Error Limit Switch Check Failed for device 1474



    A copy of this log entry has been emailed to: jinhuang@jlab.org