jeffrey.kissel@LIGO.ORG - posted 16:30, Thursday 21 December 2017 - last comment - 16:52, Thursday 21 December 2017(39877)
All HAM2/HAM3 HSTSs (MC1,MC2,MC3,PR2,PRM,SR2,SRM) OK for Doors ON
J. Kissel, T. Sadecki
Travis and I have taken close out transfer functions of H1SUSMC1, H1SUSMC2, H1SUSMC3, H1SUSPRM, and H1SUSPR2. After some hiccups with PR2 (aLOG pending), all suspensions look great. Note, PRM TFs were accidentally taken with extra TEST P&Y misalignment gains on the excitation, which is why it appears to have errantly high response.
Excellent work team!! We're ready to finish this vent!!
The data templates live here:
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/
MC1/SAGM1/Data/2017-12-21_2155_H1SUSMC1_M1_WhiteNoise_L_0p01to50Hz.xml
MC1/SAGM1/Data/2017-12-21_2155_H1SUSMC1_M1_WhiteNoise_P_0p01to50Hz.xml
MC1/SAGM1/Data/2017-12-21_2155_H1SUSMC1_M1_WhiteNoise_R_0p01to50Hz.xml
MC1/SAGM1/Data/2017-12-21_2155_H1SUSMC1_M1_WhiteNoise_T_0p01to50Hz.xml
MC1/SAGM1/Data/2017-12-21_2155_H1SUSMC1_M1_WhiteNoise_V_0p01to50Hz.xml
MC1/SAGM1/Data/2017-12-21_2155_H1SUSMC1_M1_WhiteNoise_Y_0p01to50Hz.xml
MC2/SAGM1/Data/2017-12-21_2044_H1SUSMC2_M1_WhiteNoise_L_0p01to50Hz.xml
MC2/SAGM1/Data/2017-12-21_2044_H1SUSMC2_M1_WhiteNoise_P_0p01to50Hz.xml
MC2/SAGM1/Data/2017-12-21_2044_H1SUSMC2_M1_WhiteNoise_R_0p01to50Hz.xml
MC2/SAGM1/Data/2017-12-21_2044_H1SUSMC2_M1_WhiteNoise_T_0p01to50Hz.xml
MC2/SAGM1/Data/2017-12-21_2044_H1SUSMC2_M1_WhiteNoise_V_0p01to50Hz.xml
MC2/SAGM1/Data/2017-12-21_2044_H1SUSMC2_M1_WhiteNoise_Y_0p01to50Hz.xml
MC3/SAGM1/Data/2017-12-21_2155_H1SUSMC3_M1_WhiteNoise_L_0p01to50Hz.xml
MC3/SAGM1/Data/2017-12-21_2155_H1SUSMC3_M1_WhiteNoise_P_0p01to50Hz.xml
MC3/SAGM1/Data/2017-12-21_2155_H1SUSMC3_M1_WhiteNoise_R_0p01to50Hz.xml
MC3/SAGM1/Data/2017-12-21_2155_H1SUSMC3_M1_WhiteNoise_T_0p01to50Hz.xml
MC3/SAGM1/Data/2017-12-21_2155_H1SUSMC3_M1_WhiteNoise_V_0p01to50Hz.xml
MC3/SAGM1/Data/2017-12-21_2155_H1SUSMC3_M1_WhiteNoise_Y_0p01to50Hz.xml
PR2/SAGM1/Data/2017-12-21_2035_H1SUSPR2_M1_WhiteNoise_L_0p01to50Hz.xml
PR2/SAGM1/Data/2017-12-21_2035_H1SUSPR2_M1_WhiteNoise_P_0p01to50Hz.xml
PR2/SAGM1/Data/2017-12-21_2035_H1SUSPR2_M1_WhiteNoise_R_0p01to50Hz.xml
PR2/SAGM1/Data/2017-12-21_2035_H1SUSPR2_M1_WhiteNoise_T_0p01to50Hz.xml
PR2/SAGM1/Data/2017-12-21_2035_H1SUSPR2_M1_WhiteNoise_V_0p01to50Hz.xml
PR2/SAGM1/Data/2017-12-21_2035_H1SUSPR2_M1_WhiteNoise_Y_0p01to50Hz.xml
PRM/SAGM1/Data/2017-12-21_2155_H1SUSPRM_M1_WhiteNoise_L_0p01to50Hz.xml
PRM/SAGM1/Data/2017-12-21_2155_H1SUSPRM_M1_WhiteNoise_P_0p01to50Hz.xml
PRM/SAGM1/Data/2017-12-21_2155_H1SUSPRM_M1_WhiteNoise_R_0p01to50Hz.xml
PRM/SAGM1/Data/2017-12-21_2155_H1SUSPRM_M1_WhiteNoise_T_0p01to50Hz.xml
PRM/SAGM1/Data/2017-12-21_2155_H1SUSPRM_M1_WhiteNoise_V_0p01to50Hz.xml
PRM/SAGM1/Data/2017-12-21_2155_H1SUSPRM_M1_WhiteNoise_Y_0p01to50Hz.xml
Non-image files attached to this report
Comments related to this report
F. Clara, J. Kissel, R. McCarthy, B. Weaver Proving that doors-on is always when the crazies come out of the wood-work, PR2 also showed a similar relay failure mode as PR3 (LHO aLOG 39540, LHO aLOG 39878, FRS Ticket 9497) when we first started checking its close out transfer functions. However, PR2 had failed in the opposite direction, with its T3 OSEM failed with the low pass ON (i.e. binary HIGH). We tried first to re-seat cables in the in-vac side of the feedthru, suspecting that ground loop investigations had left cables a little wonky. Didn't fix it. After that, we'd remembered PR3 problems, and went to PR2's coil driver. However, the fix only required disconnecting and reconnecting the binary IO input cable to the coil driver (yuck!). Attached are - Screenshot of how I found it -- the BIO screen showed the T3 OSEM coil driver state was not like the others. - Screenshot of the top mass Pitch to Pitch transfer function the revealed the problem. BLACK is nominal, RED is with T3 OSEM coil driver channel in the wrong analog state. But, as mentioned above, all is clear now. We did not need to change out any coil drivers.
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