Reports until 15:52, Wednesday 17 September 2014
H1 SEI
hugh.radkins@LIGO.ORG - posted 15:52, Wednesday 17 September 2014 - last comment - 16:25, Wednesday 17 September 2014(13978)
WHAM4 New Lvl1 Controllers from In-Vacuum TFs with HEPI Pos Loops Closed

Nothing special as these are generic Lvl1 controllers.  They work.  The attached pdf shows all the details of all controllers.

Non-image files attached to this report
H1_ISI_HAM4_Isolation_Loops_SISO_AllDofs_Lev_1_2014_09_16_2014_09_17.pdf
Comments related to this report
hugh.radkins@LIGO.ORG - 16:17, Wednesday 17 September 2014 (13982)
Link

There are a few high frequency (~400hz) peaks in the simulated Open Loop that intrude into our -20dB space on a couple dofs, mainly X.  If there is any ringing, these controllers may need to diverge from generic.

hugh.radkins@LIGO.ORG - 16:25, Wednesday 17 September 2014 (13984)
Link

The Previous Lvl1 controllers are still loaded in the Lvl 2 & 3 Fake Banks, so we can return to these if you suspect these controllers.

I added a ROBUST_ISOLATED to the Guardian ISI_HAM4 to use the new Lvl1 controllers.  The SEI Manager is paused.  HPI & ISI are executing

The Output Sym filters are the only thing we can't revert as I refit the new TFs for these.

The controllers shown above use the 01_28 Blends,...even though the filters that somebody switched this platform to are the 250mHz blends.