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Reports until 15:29, Thursday 24 November 2016
H1 SEI (OpsInfo)
jim.warner@LIGO.ORG - posted 15:29, Thursday 24 November 2016 (31821)
BRSX still down

I came in today to see if I could resurrect BRSX, but I was unsuccessful. I re-enabled the damping at one point to see if it was still working and after a while the damper table seemed to just stop servoing. I also damped the BRS by hand a couple times, but it would ring back up, for no apparent reason. It's all very strange, I'm not sure whats going on.  I am going to turn a couple of sensor correction taps off to keep operators from accidentally engaging the BRS, until I have a chance to talk to Krishna about how to fix BRSX.

For now, I have defined a couple of states for SEI_CONF to help keep the IFO running. There is a WINDY_NOBRSX_V2, that puts ETMX on 45 mhz blends, but keeps the other chambers on their 250mhz blends with low freq sensor correction. There is also a USEISM_MOD_WIND_NOBRSX, if the wind is low and microseism is too high.

Displaying report 1-1 of 1.