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Entry  Fri Jun 24 12:13:16 2022, JC, Update, IOO, WFS issues WFS.png
    Reply  Sat Jun 25 14:29:48 2022, Anchal, Update, IOO, WFS issues 
       Reply  Sat Jun 25 20:23:59 2022, Koji, Update, IOO, WFS issues Screen_Shot_2022-06-25_at_20.23.21.pngScreen_Shot_2022-06-25_at_20.29.24.png
          Reply  Mon Jun 27 12:32:45 2022, yuta, Update, IOO, WFS issues fixed 
Message ID: 16943     Entry time: Fri Jun 24 12:13:16 2022     Reply to this: 16946
Author: JC 
Type: Update 
Category: IOO 
Subject: WFS issues 

[Yuta, JC]

It seems that early this morning MC got very misaligned. Yuta was able to align the Mode Cleaner again by individually adjusting the MC1 MC2, and MC3. Once transmission reach ~12000, we went ahead and turned on WFS. Oddly enough, the transmission began plummeting and MC fell out of lock. After this, Yuta reset the WFS offsets and realigned the WFS QPDs. We then locked MC and turned on WFS once again, but the same issue happened. After fiddeling around with this, we found the if we set C1:IOO-MC2_TRANS_PIT_OUTPUT and C1:IOO-WFS1_YAW_OUTPUT equal to 0, WFS does not cause this issue. Is there a proper to reset WFS, aside from only zeroing the offsets?

Attachment 1: WFS.png  69 kB  Uploaded Fri Jun 24 13:41:15 2022  | Show | Show all
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