Reports until 10:24, Friday 06 December 2013
H1 SEI (ISC, SEI)
hugo.paris@LIGO.ORG - posted 10:24, Friday 06 December 2013 - last comment - 21:09, Friday 06 December 2013(8860)
SEI Controls for PRMI

Below is a summary of the available controls on SEI platforms, for PRMI. Platforms should run under their preferred configuration at all time.

 

HAM1:

HAM2:

HAM3:

BS:
ITMY:
  • ISI: Lv3 Isolation, fed by:
    • Stage 1: T250mHz blend, with T100mHz_N0.44 on X and Y
    • Stage 2: 250mHz
  • HEPI: Position loops ON
ETMX:
  • ISI: Lv3 Isolation, fed by:
    • Stage 1: T250mHz blend, with T100mHz_N0.44 on X and Y
    • Stage 2: 250mHz
  • HEPI: Locked
ITMX - Commissionning to be completed
  • ISI: Damping
  • HEPI: floating

 

Comments related to this report
hugo.paris@LIGO.ORG - 14:38, Friday 06 December 2013 (8862)
Link

Note: The HEPI-BS position loops are in the second set of filter banks. One should use the isolate BS lv2 command button, instead of lv1, for this chamber only.

brian.lantz@LIGO.ORG - 21:09, Friday 06 December 2013 (8872)SEI
Link 

work of warning - the level 2 filters attempt to turn on Filter modules 2 and 3, and module 9 for boost
(level 1 uses FM1 for isolation turn on + FM 10 for boost)
one should check that the boost module is OK. It used to be true that attempting to turn on an empty module (FM3) makes no difference, but we should check...
-Brian