Details

    • Type: Task
    • Status: Done (View Workflow)
    • Priority: Normal
    • Resolution: Done
    • Component/s: None
    • Labels:
    • Story Points:
      2
    • Sprint:
      PreEngRun05 E, PreEngRun05 G

      Description

      As listed in XML file, there are 36 cobras are flag as "bad" cobras now. Also, we found few cobras constantly going to nowhere during convergence tests. According to our experience in ASRD during AIT phase, re-calibrate those cobra usually helps them get back to healthy. Therefore, a close inspection on those suspect cobra is needed.

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            hassan hassan added a comment -

            Needs to be done before the May engineering run.

            Show
            hassan hassan added a comment - Needs to be done before the May engineering run.
            Hide
            hassan hassan added a comment -

            This will be done when Chi-Hung visits Subaru. 

            Show
            hassan hassan added a comment - This will be done when Chi-Hung visits Subaru. 
            Hide
            chyan chyan added a comment -

            We start the inspection process on May 4th and 5th. 14 cobras are disabled after the delivery and we successfully recovered 12 by tuning their frequencies. Further calibration like on-time, geometry and motor map will be carry out after we finishing the inspection on bad cobra before delivery.

            Show
            chyan chyan added a comment - We start the inspection process on May 4th and 5th. 14 cobras are disabled after the delivery and we successfully recovered 12 by tuning their frequencies. Further calibration like on-time, geometry and motor map will be carry out after we finishing the inspection on bad cobra before delivery.
            Hide
            chyan chyan added a comment -

            The file INSTRM-1560.ipynb showing how we re-activate the cobra.

            Here is the new XML after re-activating the cobra marked as bad after the delivery.
            https://github.com/Subaru-PFS/pfs_instdata/blob/master/data/pfi/modules/ALL/ALL_final_20220505_mm.xml

            Show
            chyan chyan added a comment - The file INSTRM-1560.ipynb showing how we re-activate the cobra. Here is the new XML after re-activating the cobra marked as bad after the delivery. https://github.com/Subaru-PFS/pfs_instdata/blob/master/data/pfi/modules/ALL/ALL_final_20220505_mm.xml
            Hide
            hassan hassan added a comment -

            Following discussions with chyan, this ticket is considered done.

            Show
            hassan hassan added a comment - Following discussions with chyan , this ticket is considered done.

              People

              • Assignee:
                chyan chyan
                Reporter:
                chyan chyan
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                • Created:
                  Updated:
                  Resolved: