Reports until 09:11, Friday 10 January 2014
H1 PSL
alexan.staley@LIGO.ORG - posted 09:11, Friday 10 January 2014 - last comment - 12:53, Sunday 12 January 2014(9200)
PSL FSS Oscillation

(Alexa, Kiwamu)

We noticed that the FSS was osillating significantly. I first lowered the resonant threshold from .8V to .5V. I also decreased the Common Gain from 30dB to 10.4dB. This seemed to help. It's possible the oscillation was due to instability in the MC servo. 

Comments related to this report
kiwamu.izumi@LIGO.ORG - 12:53, Sunday 12 January 2014 (9224)
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I set the common gain back to 30 dB to see the instablity still persists. So far, I don't see any instablity. I am leaving it 30 dB.