2014_10_10 < Subaru/PFS

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---++ Fast Motor Maps
   * Switched cabling from Set B to Set C
   * Removed filters from camera
   * Loaded "090314_setC_allmaps_adj3.xml" into MSIM for last known link lengths/centers
   * Ran "2014_10_10_FASTmsimMotMap.lst" to create Fast Motor Maps
      * Used on-times of 0.3msec with 2.5ms intervals for both Theta and Phi motors
      * Moves of 10 steps between images
   * Noticed odd results for pId 6 during Theta Fwd map.  Phi Angle was nominally around 170deg, then jumped to 121deg for a number of moves before jumping back to 170deg.  Note that at the very bottom of the image it looks like Phi jumped back to ~121deg again.
      * pid6 Theta Fwd Fast Map Log - Odd Result: <br />
     <img src="%ATTACHURLPATH%/pid6oddbehaviorFastMap.PNG" alt="pid6oddbehaviorFastMap.PNG" width='476' height='496' />
      * Possible source of this weird behavior is a shaft coupler de-bonding.
      * *Based on visual inspection (Charlie) the coupler is still in place axially (hasn't slid off the shaft).  Should continue to monitor pid6 for more signs of failed bond.*
   * Aborted MSIM script because pid1, pid5 and pid8 didn't make a full revolution on Theta Fwd.  Need to add more iterations.
   * Updated MSIM script and re-ran in MSIM
      * Moves of 15 steps and increased to 200 iterations for Theta
      * Kept moves of 10 steps for Phi
   * Still seeing odd behavior with pid6 (Phi jumping between ~170deg and 120deg) on Theta Fwd results
     <img src="%ATTACHURLPATH%/pid6oddbehaviorFastMap2.PNG" alt="pid6oddbehaviorFastMap2.PNG" width='402' height='960' />
   * General observation is that Phi is drifting around on some of the results.  Very possible that centers and link lengths need to be determined again


-- Main.CharlieFisher - 10 Oct 2014

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I	Attachment	History	Action	Size	Date	Who	Comment
PNG	pid6oddbehaviorFastMap.PNG	r1	manage	44.3 K	2014-10-10 - 22:54	UnknownUser	pid6 Fast Map Log - ThetaFwd - Odd Result
PNG	pid6oddbehaviorFastMap2.PNG	r1	manage	59.2 K	2014-10-10 - 23:52	UnknownUser	description goes here

Topic revision: r1 - 2014-10-11 - CharlieFisher

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