Reports until 07:37, Monday 10 February 2014
H1 SEI
sheila.dwyer@LIGO.ORG - posted 07:37, Monday 10 February 2014 (9940)
ETMX ISI

Sheila. Alexa.

When we got here this morning the ETM ISI was tripped.  We decided to use the chance to roughly aling the cavity (using the SUS offsets) with it tripped, and reset the CPS targets.  Hopefully this will reduce the ringing up of trilliums when we isolate by reducing the amount that the ISI has to move. We only did this for stage 1, since stage 2 was already pretty cose to the target values.  Before and after screen shots of what we started with is attached.  The ! Store target offsets button didn't seem to do anything, so I copied the numbers by hand. 

After this I tried to follow hugh's alog 9926

first I set all the blends to 750mHz, then tried to isolate stg1 level3.  However, when I tried to move the blends to tcrappy it kept tripping, so now I have it at level 2 and tcrappy doesn't trip it.  On stage 2, I tried level 2 (starting with 750 blends) moving to tcrappy would cause it to trip.  Stage 2 level 2 tripped, 1 when I tried to change from 750 to Tcrappy, then even when I left it at 750.  Now it is at level 1 with 750 blends.

Images attached to this report