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Reports until 15:23, Monday 13 April 2015
H1 SUS
betsy.weaver@LIGO.ORG - posted 15:23, Monday 13 April 2015 - last comment - 15:26, Monday 13 April 2015(17848)
SUS SDF update effort continued

Today, I restored the ITM misaligned TEST_OFFSET and TEST_GAINs which I found to be showing as diffs in SDF - Sheila had been playing with them last week but said they should be restored.  Snapshots of the ITMy "was" and "now" (aka good) values are attached.

 

Turned ITM R0 OPTICALIGN zeroed offsets and inputs off - these are never used and are just confusing when found on.

 

Cleaned out BIO/COIL/TEST_SW2 and LOCK_SW2 changes like has been ongoing across all SUSes.

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betsy.weaver@LIGO.ORG - 15:26, Monday 13 April 2015 (17849)

While I was SDF'ing, I found both ETMs with R0 (reaction) chain YAW offsets enabled.  See pix below - My guess is that commissioners will want to turn these off.  I also think these loops should have the inputs turned off for good (like I did with the ITMs) so as to not be confusing later.

As posted, I've been finding fishy settings on ETMs recently - maybe someone picked a poor snapshot file when restoring last week...?

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