terra.hardwick@LIGO.ORG - posted 10:10, Friday 18 November 2016 - last comment - 15:45, Friday 18 November 2016(31593)
Op requests whenever we relock
Whoever is in the chair next when we have to relock (days from now I'm sure...), please:
- Stop at DC Readout. Run a2l. Turn PI Mode 3 & 26 gain to zero. Record time in alog when you put gains to zero.
- Continue up as normal.
- Once at NLN, run a2l again. Continue to watch PI modes and damp as necessary: if either mode gets above the noise floor in the StripTool, put back in Mode 3 gain = -3000 and/or Mode 26 gain = 3000. Record time in alog when you put gains back on.
- Let the mode(s) damp back down. Once back down and buried in the noise floor of StripTool, set that mode's gain to zero again. Play the same game of seeing if it rings up and putting back in the gain if needed and putting rough times in the alog.
Thanks a bunch - the past few days of everyone helping play this long timescale PI game has been super helpful.
When you say a2l, do you mean the trio of them or just the one original, main one?
Ya just the main one: a2l_min_LHO. Thanks Ed.
General comment for operators:
when you run a2l make sure you take the observatory mode to commisioning first, then you can put it back when the script finishes. This way we can avoid confusing people. Once we have SDF tied into the intention bit this would automatically drop us out of observing.