Reports until 16:37, Thursday 25 July 2019
H1 ISC
jenne.driggers@LIGO.ORG - posted 16:37, Thursday 25 July 2019 - last comment - 11:46, Monday 29 July 2019(50823)
New align SR2 state in ALIGN_IFO

I have created a new set of states for the ALIGN_IFO guardian to do the alignment of SR2 with SRM misaligned.  This is something that operators often do by hand when the SRC won't lock.  I have not yet tested these states, but hope to on Tuesday when we're recovering from maintenance, or next time I'm around that we need to do an alignment. Once the states are tested we can add some logic to TJ's INIT_ALIGN guardian to give up on SRC locking after some seconds of trying, do SR2 alignment, then go back to SRC alignment.

Comments related to this report
jenne.driggers@LIGO.ORG - 11:46, Monday 29 July 2019 (50893)

[TJ, Jenne]

We took ~5 min during an initial alignment to commission the new SR2 alignment states.  The states seem to work well, although I need to think more carefully about the guardian paths to get to them.  I have also confirmed that the initial alignment and DRMI guardians reset the SRC1 and SRC2 filter states and in/putput matrices properly after this state is run.

With a bit more thinking on the path situation, we should be able to now include this as part of the auto-initial alignment guardian if SRY isn't locking on its own.