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Entry  Fri Jul 29 16:25:06 2011, kiwamu, Update, ASC, beam axis and Y arm aligned 
    Reply  Sat Jul 30 06:24:06 2011, kiwamu, Update, ASC, Y arm ASS fixed 
       Reply  Sat Jul 30 21:04:23 2011, kiwamu, Update, ASC, Y arm ASS fixed 
       Reply  Sun Jul 31 00:05:52 2011, kiwamu, Update, LSC, script for loss measurement : modified 
          Reply  Sun Jul 31 22:35:35 2011, kiwamu, Update, LSC, arm loss measurement : done 
             Reply  Wed Sep 7 16:21:35 2011, kiwamu, Update, LSC, arm loss measurement : resluts Yarmloss.pngXarmloss.png
                Reply  Wed Sep 7 17:28:41 2011, kiwamu, Update, LSC, X arm loss measurement : not good Xarmlossmeasurement.png
Message ID: 5073     Entry time: Sat Jul 30 21:04:23 2011     In reply to: 5067
Author: kiwamu 
Type: Update 
Category: ASC 
Subject: Y arm ASS fixed 

The X arm ASS was also fixed. So both X and Y arm ASS are now back to normal.

Now we can align the arms any time from the buttons on the C1IFO_CONFIGURE window.

 

(notes)

The reason why the servo didn't work was that the sign of some control gains had been flipped.

This was exactly the same situation as that in the Y arm ASS (#5067).

Quote from #5067

The servos of C1ASS for the Y arm and the beam axis alignments were fixed.

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