Camilla, Sheila, Robert
We successfully swapped from EX to IX ESD DARM control for Robert's bias sweep by manualling SUS_CHARGE to SWAP_TO_ITMX. On the swap back we again manualled SUS_CHARGE to SWAP_BACK_ETMX, this caused a lockloss as we forgot to return the ETMX bias to it's normal value so the BIAS MASTER_OUT_DCMON was around -487,000 rather than the nominal +170,000. Sorry.
Unrelated to today's lockloss but should stop lockloss caused by in-lock charge measurements: commit 27861
This SWAP_BACK_ETMX state has been causing locklosses on Tuesday mornings since we've swapped to new DARM. Today we found this was due to out of date L3_DRIVEALIGN_L2L filter settings (FM4,5 rather than FM7) hard-coded in RAN_ESD_EXC.py. We edited this and expect this will stop future locklosses from in-lock charge measurements. Sheila also found a ramping inconsistency in SUS_CHARGE SWAP_TO_ITMX that we were surviving, edited that too.
Changed in-lock excitation frequencies to suggested new ones that avoid 14Hz roll mode we never used from
76492: ETMs 12Hz, ITMX 13Hz, ITMY 15Hz. Now we've got recent data with all test masses.
Tagging SUS.