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Entry  Tue Jun 5 09:32:12 2012, steve, Update, SUS, PRM oscillation  PRMosc.png
    Reply  Wed Jun 6 09:27:09 2012, steve, Update, SUS, PRM damping restored  PRMwhat.png
       Reply  Thu Jun 7 08:12:20 2012, steve, Update, SUS, PRM is still oscillating PRMoscil.png
          Reply  Thu Jun 7 13:18:42 2012, rana, Update, SUS, PRM is still oscillating 
             Reply  Thu Jun 7 13:25:37 2012, Koji, Update, SUS, PRM is still oscillating 
                Reply  Thu Jun 7 18:46:13 2012, yuta, Update, SUS, PRM oplev centered 
Message ID: 6781     Entry time: Thu Jun 7 08:12:20 2012     In reply to: 6764     Reply to this: 6785
Author: steve 
Type: Update 
Category: SUS 
Subject: PRM is still oscillating 

Quote:

Quote:

What not to do:

The PRM oplev servo was left on and it was driving this oscillation overnight.

 Oplev servo turned off and sus damping restored. What is kicking up the PRM?

 The PRM oscillation stopped by turnig off oplev servo.

Do not turn Oplev Servo on when PRM is missaligned !

 

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PRMoscil.png
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