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Entry  Thu Nov 10 12:28:31 2011, Jenne, Update, SUS, MC2 is being a little wild...WFS to blame WFSscreenshot.png
    Reply  Fri Nov 11 21:09:30 2011, Suresh, Update, SUS, MC2 is being a little wild...WFS to blame LOCKMC_screen.png
Message ID: 5862     Entry time: Thu Nov 10 12:28:31 2011     Reply to this: 5877
Author: Jenne 
Type: Update 
Category: SUS 
Subject: MC2 is being a little wild...WFS to blame 

Mirko and  Den are measuring MC_F, which they will report about later, but I noticed that MC2 is totally crazy right now.  It shouldn't matter that they are doing things (like unplugging the feedback to the PSL's PZT), because we actuate on the laser, not on the MC.  I disabled the MC autolocker before they started working. 

Anyhow, somehow MC2 got kicked up (whatever, that happens), but it won't re-damp.  I think it's the WFS.  The yaw output from the WFS is truely crazy. 

I have disabled the WFS output / ASC input on the MC SUS screens, and MC2 was then able to damp.  My disabling only the MC2 WFS input at first kicked up MC1 and 3, so I disabled all of the WFS stuff, and all 3 MC mirrors are again happy. 

SURESH: FIX ME!  (signed, The WFS)

WFSscreenshot.png

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