aLIGO LHO Logbook

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Reports until 16:08, Wednesday 05 September 2012

H2 General

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gregory.mendell@LIGO.ORG - posted 16:08, Wednesday 05 September 2012 (4096)

H2 One Arm Test Fscans

I have generated Fscans for many of the SUS, ISI, and PEM channels
listed here,

https://wiki.ligo.org/foswiki/bin/view/DetChar/OneArmTestLineInvestigations

Especially over the weekend I finished generating Fscans during
significant lock stretches ending on August 22, 25, 28, and 31.

You can find the SUS, ISI,and PEM Fscans respectively here:

https://ldas-jobs.ligo-wa.caltech.edu/~pulsar/fscan/H2_OneArm/H2_OneArm_SUS/fscanNavigation.html

https://ldas-jobs.ligo-wa.caltech.edu/~pulsar/fscan/H2_OneArm/H2_OneArm_ISI/fscanNavigation.html

https://ldas-jobs.ligo-wa.caltech.edu/~pulsar/fscan/H2_OneArm/H2_OneArm_PEM/fscanNavigation.html

Click on a date and then the channel name to get the Fscan plots and links to
the data files.

Note that the PEM Fscans also include the length sensing channel, e.g.,
H2:ALS-Y_ARM_LONG_IN1_DQ.

For those that mine the Fscan data, from the cluster at LHO look for the
data files respectively under,

/home/pulsar/public_html/fscan/H2_OneArm/H2_OneArm_SUS

/home/pulsar/public_html/fscan/H2_OneArm/H2_OneArm_ISI

/home/pulsar/public_html/fscan/H2_OneArm/H2_OneArm_PEM

Finally, the Fscan plots do not appear for some SUS channels, because
they were all zeros. Specifically, for Aug. 31, I find these channels
were all zeros:

H2:SUS-ETMY_L1_MASTER_OUT_LL_DQ
H2:SUS-ETMY_L1_MASTER_OUT_LR_DQ
H2:SUS-ETMY_L1_MASTER_OUT_UL_DQ
H2:SUS-ETMY_L1_MASTER_OUT_UR_DQ
H2:SUS-ETMY_L2_MASTER_OUT_LL_DQ
H2:SUS-ETMY_L2_MASTER_OUT_LR_DQ
H2:SUS-ETMY_L2_MASTER_OUT_UL_DQ
H2:SUS-ETMY_L2_MASTER_OUT_UR_DQ
H2:SUS-ETMY_L3_MASTER_OUT_LL_DQ
H2:SUS-ETMY_L3_MASTER_OUT_LR_DQ
H2:SUS-ETMY_L3_MASTER_OUT_UL_DQ
H2:SUS-ETMY_L3_MASTER_OUT_UR_DQ
H2:SUS-ITMY_L1_MASTER_OUT_LL_DQ
H2:SUS-ITMY_L1_MASTER_OUT_LR_DQ
H2:SUS-ITMY_L1_MASTER_OUT_UL_DQ
H2:SUS-ITMY_L1_MASTER_OUT_UR_DQ
H2:SUS-ITMY_L2_MASTER_OUT_LL_DQ
H2:SUS-ITMY_L2_MASTER_OUT_LR_DQ
H2:SUS-ITMY_L2_MASTER_OUT_UL_DQ
H2:SUS-ITMY_L2_MASTER_OUT_UR_DQ
H2:SUS-ITMY_L3_MASTER_OUT_LL_DQ
H2:SUS-ITMY_L3_MASTER_OUT_LR_DQ
H2:SUS-ITMY_L3_MASTER_OUT_UL_DQ
H2:SUS-ITMY_L3_MASTER_OUT_UR_DQ

H1 SEI

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corey.gray@LIGO.ORG - posted 16:07, Wednesday 05 September 2012 (4097)

HAM1 iLIGO Support Table Installed

(Bubba, Corey, Hugh)

Once we had access to the forklift & the South crane, the west door of HAM1 was removed. Risers (vertical spacers) were placed on the Support Tubes, and then the Support Table was brought into the Chamber & lowered onto the Spacers. 3/8"-24 x 3" Ag-plated bolts were then used to secure the Spacers & Support Table on to the Support Tubes.

We didn't have a torque wrench, but torqued the eastern row of bolts "wrench-tight" (should be confirmed later); the western row of bolts were just hand tightened. The lifting hardware is still on the Support Table (along with tooling).

Next up, we can begin craning the rest of our iLIGO Isolation Stack hardware over to HAM1 and continue the build-up.

Images attached to this report

H1 FMP

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jodi.fauver@LIGO.ORG - posted 15:05, Wednesday 05 September 2012 (4095)

Cleanroom Choreography

After three different rigging configurations, Bubba and crew were able to pick the short-sided cleanroom out of the south bay. This move took until shortly after 1 pm to accomplish. The crew spent the rest of the afternoon helping Hugh with the door removal at HAM1.

H2 SUS

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jeffrey.garcia@LIGO.ORG - posted 13:23, Wednesday 05 September 2012 (4093)

H2SUS ETMY & ITMY Foton text files under SVN control

As of now, Foton filter text files for H2SUS ETMY & ITMY are now under SVN control in the "cds_user_apps" repository.  Previously, the text files were written to the "/chans/" directory locally:
'/opt/rtcds/lho/h2/chans/'.

This directory now contains soft-link names "H2SUSITMY.txt" & "H2SUSETMY.txt" which point to the actual SVN-controlled Foton files located:
'/opt/rtcds/userapps/release/sus/h2/filterfiles/'

with the same filenames, "H2SUSITMY.txt" & "H2SUSETMY.txt".  

Edits to these files should be written to the SVN directory (and committed) and NOT to the "/chans/" directory.  Doing so will break the soft-link pointer.

LHO General

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patrick.thomas@LIGO.ORG - posted 10:50, Wednesday 05 September 2012 (4089)

dust monitor installed

The dust monitor labeled 'B' was installed under the clean room between HAM1 and HAM2 on the west side. It is set at location 9 in the LVEA.

H1 SEI

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greg.grabeel@LIGO.ORG - posted 09:06, Wednesday 05 September 2012 (4086)

Unit 7 HAM purge

Purged Unit 7 in its storage container with LN₂ boil off from a dewar. Used 5 Liters per Minute flow rate this time and the differences can be seen in the attached chart. I would like to try and find the minimum flow rate needed to maintain a -35 to -40 tdºC dew point level, but I may need to get a lower flow rotameter.

Images attached to this report

H1 SEI

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hugh.radkins@LIGO.ORG - posted 07:59, Wednesday 05 September 2012 (4084)

Staged to Build iLIGO SEI Stack in HAM1

We are ready to remove the West door from HAM1 and build the isolation stack there.  There will be some competing needs of crane and forklift with the Apollo crew moving the cleanrooms in & out of the South bay so progress may not be as rapid as possible.

LHO General

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patrick.thomas@LIGO.ORG - posted 18:27, Tuesday 04 September 2012 (4083)

plots of dust counts

Attached are plots of dust counts > .5 microns in particles per cubic foot.

Non-image files attached to this report

particle_counts_september_4_2012.pdf

H1 PSL

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richard.savage@LIGO.ORG - posted 17:50, Tuesday 04 September 2012 (4082)

PSL ISS turned off

The ISS was cycling between about 0 and 20% diffracted power.  I disabled it for now.

With Alberto Stochino, we installed two turning mirrors in the PSL RefCav transmitted light pickoff path in preparation for installation of the coupling optics for the fiber for the single-arm test.  We will continue with this effort tomorrow.

LHO General

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patrick.thomas@LIGO.ORG - posted 17:05, Tuesday 04 September 2012 (4069)

ops summary

cleaning HAM 1
CP 5, 6 filled
Filiberto to mid Y to look for electronics chassis.
Betsy to work on MC1.
Apollo to begin craning of short sided clean room from South bay to BSC8, and relocate clean room from HAM4 to HAM3.
Kyle replacing ion pump on GV16.
Eric putting bellow shields on HEPI actuators.
Dave and Jim to end Y to look at HEPI pump controller, power cycled pump controller.

H2 SEI

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vincent.lhuillier@LIGO.ORG - posted 16:55, Tuesday 04 September 2012 (4080)

HEPI pump restarted at EY on September 4, 2012

This afternoon, the CDS group encountered some difficulties to connect to the servo controller computer at EY. At that point, the controller and the pump were still running. Only the display was frozen. When they rebooted the computer, the pump stopped. The HEPI pump at EY was restarted around 4:20 pm. The HEPI came back close to its previous nominal position.

H2 ISC

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daniel.sigg@LIGO.ORG - posted 15:40, Tuesday 04 September 2012 - last comment - 08:24, Wednesday 05 September 2012(4074)

ALS WFS path change 2 and new ALS WFS sensing matrix

Today we moved WFS2 back to its original position and moved the second lens after the steering mirror. The combination without a second lens gave a beam too small. The new measured alignment matrix is

Sensing matrix for PIT was:
WFSA = +0.411*POS -5.483*ANG
WFSB = +1.269*POS - 3.783*ANG

Sensing matrix for YAW was:
WFSA = +0.036*POS + 1.962*ANG
WFSB =-0.431*POS + 3.265*ANG

The inverse matrices are:
PIT={{-0.7002, +1.0148}, {-0.2349, +0.0761}}
YAW={{+3.3830, -2.0329}, {+0.4476, +0.0373}}

Comments related to this report

keita.kawabe@LIGO.ORG - 08:24, Wednesday 05 September 2012 (4085)

Decent matrix with too small a beam >> Hopeless matrix with a decent size beam.

H1 FMP

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jodi.fauver@LIGO.ORG - posted 15:26, Tuesday 04 September 2012 (4078)

Cleanroom Choreography

Christina and crew cleaned at HAM1/2 twice today in preparation for door removal by the SEI crew. Hugh has five HAM door covers to use as needed. An additional six HAM door covers are on the shelf and at least six more are in the laundry queue. 

Bubba and crew removed the short-sided cleanroom from over HAM3 and placed it next to BSC8.

H1 AOS

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thomas.vo@LIGO.ORG - posted 15:19, Tuesday 04 September 2012 - last comment - 15:28, Tuesday 04 September 2012(4075)

High Quality Viewport Assembly

Douglas Daniel, Joe DeRenzis, Thomas Vo

We finished assembling two D1101714, High Quality Wedged 6in Viewport assemblies (double optic). This is the first few articles of this particular assembly and pictures are attached, proof testing and leak testing to be done tomorrow (awaiting test parts from C&B).  One of these assemblies is meant to be installed on HAM1 for the main PSL laser beam, we hope to be ready to connect the light tube this week.

Images attached to this report

Comments related to this report

jodi.fauver@LIGO.ORG - 15:28, Tuesday 04 September 2012 (4079)

Note the new jig designed and fabricated by Tyler for holding these viewports during inspection.

H2 SUS

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jeffrey.garcia@LIGO.ORG - posted 15:14, Tuesday 04 September 2012 - last comment - 12:47, Wednesday 05 September 2012(4071)

SUS QUAD L1, L2 CoilOutF filter module updates

Modifications to the QUAD L1 (UIM) and L2 (PUM) stage CoilOutF filter banks were made via Foton to reflect the latest State Machine Diagrams updated last week.

The changes were saved to the filter text files, and filter coefficients were loaded via the "*_GDS_TP" medm.

The Foton filter text files were committed locally to the "cds_user_apps" Repository checked out under:
'/opt/rtcds/userapps/release/sus/h2/filterfiles/H2SUS*TMY.txt'

Comments related to this report

jeffrey.garcia@LIGO.ORG - 15:22, Tuesday 04 September 2012 (4076)

For each of the four L2 (PUM) stage Coil Output Filter banks, the differences in the Foton text file are as follows:

Previously (before 08/31/2012):

################################################################################
### ITMY_L2_COILOUTF_LL                                                      ###
################################################################################
# DESIGN   ITMY_L2_COILOUTF_LL 0 zpk([129.973],[13],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 1 zpk([99.9877],[1],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 2 zpk([5;19.9999],[0.5;249.809],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 5 zpk([13],[129.973],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 6 zpk([1],[99.9877],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 7 zpk([0.5;249.809],[5;19.9999],1,"n")
###                                                                          ###
ITMY_L2_COILOUTF_LL 0 21 1      0      0 SimAcqOffL2        0.1022381444281  -0.9950269485578308   0.0000000000000000  -0.9513581602053965   0.0000000000000000
ITMY_L2_COILOUTF_LL 1 21 1      0      0 SimAcqOnL2    0.01018979855460631  -0.9996165783185160   0.0000000000000000  -0.9623720057438665   0.0000000000000000
ITMY_L2_COILOUTF_LL 2 21 1      0      0 SimLPL2         1.198428225279573  -1.9083200482101859   0.9083375891754886  -1.9904437581736589   0.9904583948159983
ITMY_L2_COILOUTF_LL 5 21 1      0      0 AntiAcqOffL2      9.781085186882086  -0.9513581602053965   0.0000000000000000  -0.9950269485578308   0.0000000000000000
ITMY_L2_COILOUTF_LL 6 21 1      0      0 AntiAcqOnL2      98.13736695981576  -0.9623720057438665   0.0000000000000000  -0.9996165783185160   0.0000000000000000
ITMY_L2_COILOUTF_LL 7 21 1      0      0 AntiLPL2       0.8344262751043912  -1.9904437581736589   0.9904583948159983  -1.9083200482101859   0.9083375891754886
################################################################################

Currently (as of 09/04/2012):

################################################################################
### ITMY_L2_COILOUTF_LL                                                      ###
################################################################################
# DESIGN   ITMY_L2_COILOUTF_LL 0 zpk([12],[110],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 1 zpk([1.35],[80.5],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 2 zpk([6;20],[0.5;250],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 5 zpk([110],[12],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 6 zpk([80.5],[1.35],1,"n")
# DESIGN   ITMY_L2_COILOUTF_LL 7 zpk([0.5;250],[6;20],1,"n")
###                                                                          ###
ITMY_L2_COILOUTF_LL 0 21 1      0      0 SimAcqOffL2      8.999262730598492  -0.9586809127066087   0.0000000000000000  -0.9954086141798147   0.0000000000000000
ITMY_L2_COILOUTF_LL 1 21 1      0      0 SimAcqOnL2      58.74299131244113  -0.9695955355155262   0.0000000000000000  -0.9994824154540793   0.0000000000000000
ITMY_L2_COILOUTF_LL 2 21 1      0      0 SimLPL2        0.9996062717429675  -1.9082531975983987   0.9082707513809170  -1.9900610320883918   0.9900785927850526
ITMY_L2_COILOUTF_LL 5 21 1      0      0 AntiAcqOffL2     0.1111202139481815  -0.9954086141798147   0.0000000000000000  -0.9586809127066087   0.0000000000000000
ITMY_L2_COILOUTF_LL 6 21 1      0      0 AntiAcqOnL2    0.01702330742200748  -0.9994824154540793   0.0000000000000000  -0.9695955355155262   0.0000000000000000
ITMY_L2_COILOUTF_LL 7 21 1      0      0 AntiLPL2        1.000393883340034  -1.9900610320883918   0.9900785927850526  -1.9082531975983987   0.9082707513809170
################################################################################

jeffrey.garcia@LIGO.ORG - 15:25, Tuesday 04 September 2012 (4077)

For each of the four L1 (UIM) stage Coil Output Filter banks, the differences in the Foton text file are as follows:

Previously (before 08/31/2012):

################################################################################
### ITMY_L1_COILOUTF_LL                                                      ###
################################################################################
# DESIGN   ITMY_L1_COILOUTF_LL 0 zpk([],[],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 1 zpk([9.99999],[1],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 2 zpk([9.99999],[1],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 3 zpk([9.99999],[1],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 5 zpk([324.58],[59.9974],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 6 zpk([1],[9.99999],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 7 zpk([1],[9.99999],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 8 zpk([1],[9.99999],1,"n")
###                                                                          ###
ITMY_L1_COILOUTF_LL 0 21 1      0      0 Unknown                         1   0.0000000000000000   0.0000000000000000   0.0000000000000000   0.0000000000000000
ITMY_L1_COILOUTF_LL 1 21 1      0      0 SimLP1L1       0.1001725184293824  -0.9996165783185160   0.0000000000000000  -0.9961723865238130   0.0000000000000000
ITMY_L1_COILOUTF_LL 2 21 1      0      0 SimLP2L1       0.1001725184293824  -0.9996165783185160   0.0000000000000000  -0.9961723865238130   0.0000000000000000
ITMY_L1_COILOUTF_LL 3 21 1      0      0 SimLP2L1       0.1001725184293824  -0.9996165783185160   0.0000000000000000  -0.9961723865238130   0.0000000000000000
ITMY_L1_COILOUTF_LL 5 21 1      0      0 AntiAcqL1      0.1938898668876849  -0.9772519830087036   0.0000000000000000  -0.8826755757975039   0.0000000000000000
ITMY_L1_COILOUTF_LL 6 21 1      0      0 AntiLP1L1       9.982777868412679  -0.9961723865238130   0.0000000000000000  -0.9996165783185160   0.0000000000000000
ITMY_L1_COILOUTF_LL 7 21 1      0      0 AntiLP2L1       9.982777868412679  -0.9961723865238130   0.0000000000000000  -0.9996165783185160   0.0000000000000000
ITMY_L1_COILOUTF_LL 8 21 1      0      0 AntiLP2L1       9.982777868412679  -0.9961723865238130   0.0000000000000000  -0.9996165783185160   0.0000000000000000

################################################################################



Currently (as of 09/04/2012):

################################################################################
### ITMY_L1_COILOUTF_LL                                                      ###
################################################################################
# DESIGN   ITMY_L1_COILOUTF_LL 0 zpk([],[],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 1 zpk([10.5],[1],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 2 zpk([10.5],[1],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 3 zpk([10.5],[1],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 5 zpk([300],[50],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 6 zpk([1],[10.5],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 7 zpk([1],[10.5],1,"n")
# DESIGN   ITMY_L1_COILOUTF_LL 8 zpk([1],[10.5],1,"n")
###                                                                          ###
ITMY_L1_COILOUTF_LL 0 21 1      0      0 Unknown                         1   0.0000000000000000   0.0000000000000000   0.0000000000000000   0.0000000000000000
ITMY_L1_COILOUTF_LL 1 21 1      0      0 SimLP1L1      0.09541142041015412  -0.9996165783185160   0.0000000000000000  -0.9959813858777531   0.0000000000000000
ITMY_L1_COILOUTF_LL 2 21 1      0      0 SimLP2L1      0.09541142041015412  -0.9996165783185160   0.0000000000000000  -0.9959813858777531   0.0000000000000000
ITMY_L1_COILOUTF_LL 3 21 1      0      0 SimLP2L1      0.09541142041015412  -0.9996165783185160   0.0000000000000000  -0.9959813858777531   0.0000000000000000
ITMY_L1_COILOUTF_LL 5 21 1      0      0 AntiAcqL1      0.1744034418878165  -0.9810067536768792   0.0000000000000000  -0.8910959203698616   0.0000000000000000
ITMY_L1_COILOUTF_LL 6 21 1      0      0 AntiLP1L1       10.48092561352933  -0.9959813858777531   0.0000000000000000  -0.9996165783185160   0.0000000000000000
ITMY_L1_COILOUTF_LL 7 21 1      0      0 AntiLP2L1       10.48092561352933  -0.9959813858777531   0.0000000000000000  -0.9996165783185160   0.0000000000000000
ITMY_L1_COILOUTF_LL 8 21 1      0      0 AntiLP2L1       10.48092561352933  -0.9959813858777531   0.0000000000000000  -0.9996165783185160   0.0000000000000000
################################################################################

jeffrey.kissel@LIGO.ORG - 09:48, Wednesday 05 September 2012 (4087)

Looks good; thanks Garcia!

jeffrey.garcia@LIGO.ORG - 12:47, Wednesday 05 September 2012 (4092)

The ITMY & ETMY M0&R0 top stage CoilOutF filter modules matched the State Machine Diagram for the TOP Coil Driver before making modifications on the lower stage filter modules.

All filter modules for every ITMY,ETMY M0&R0 CoilOutF filter modules are identical and contain the following digital filters:

################################################################################
### ITMY_M0_COILOUTF_F1                                                      ###
################################################################################
# DESIGN   ITMY_M0_COILOUTF_F1 1 zpk([10],[1],1,"n")
# DESIGN   ITMY_M0_COILOUTF_F1 5 zpk([0.9],[31],1,"n")
# DESIGN   ITMY_M0_COILOUTF_F1 6 zpk([1],[10],1,"n")
###                                                                          ###
ITMY_M0_COILOUTF_F1 1 21 1      0      0 SimLPM0        0.1001724184483297  -0.9996165783185160   0.0000000000000000  -0.9961723827035119   0.0000000000000000
ITMY_M0_COILOUTF_F1 5 21 1      0      0 AntiAcqM0       34.24722014515512  -0.9881817593982465   0.0000000000000000  -0.9996549138717927   0.0000000000000000
ITMY_M0_COILOUTF_F1 6 21 1      0      0 AntiLPM0         9.98278783211981  -0.9961723827035119   0.0000000000000000  -0.9996165783185160   0.0000000000000000

################################################################################

H2 SUS

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jeffrey.kissel@LIGO.ORG - posted 12:07, Tuesday 04 September 2012 - last comment - 11:20, Wednesday 05 September 2012(4070)

How to turn on untrip SUS Watchdogs when SUS has Large Alignment Offset (Current Best Method)

After noticing difficulties with untripping the QUAD watchdogs, I realized that a more sophisticated process is required to restore the QUAD status after a watchdog trip now that there are gigantic P and Y offsets on the TOP stage. Bare with me, it's complicated and convoluted because we didn't imagine this scenario while installing the infrastructure, but it's now on the "to-do" list to get it changed / more straight forward in the future.

For now, the process is as follows:

(1) Turn off the master switch.
(2) Untrip any relevant watchdogs.
(3) Change the gain in the P2P and Y2Y DriveAlign matrix filter banks to 0.00 (you can do this from the screen, or since you (currently) need a terminal open for the next step anyways, you can caput / ezcawrite it too). For example, if you're doing ITMY, that's 

]$ caput H2:SUS-ITMY_M0_DRIVEALIGN_P2P_GAIN 0
]$ caput H2:SUS-ITMY_M0_DRIVEALIGN_Y2Y_GAIN 0

(4) Change the ramp time in the P2P and Y2Y DriveAlign matrix filter banks to 10 sec. (The link to the "full" screen is currently broken, so you'll have to do a "caput" or "ezcawrite" or whichever). For example, if you're doing ITMY, that's 

]$ caput H2:SUS-ITMY_M0_DRIVEALIGN_P2P_TRAMP 10
]$ caput H2:SUS-ITMY_M0_DRIVEALIGN_Y2Y_TRAMP 10

(5) Turn ON the P and Y offsets to the desired value (if they're not on already); turn ON the damping loops (if they're not on already)
(6) Turn ON the MASTER SWITCH
(7) Change the gain of the P2P and Y2Y DriveAlign matrix filter banks back to one. Now that there's a ramp time in the signal chain, it'll slowly ramp up the offsets (and the P and Y damping loops), so the watchdogs won't trip.


--------------------------

The items on the "to do list" in order of difficultly/level of hackiness (from easiest / hackiest to most difficult / do-the-right-thingiest)
(1) Fix the DriveAlign Matrix sub-screen such that
    (a) The "FULL" button works, and it opens the full filter bank (may just require an userapps svn up...)
    (b)  Add the TRAMP epics read/write to every element of the the upper level DriveAlign screen-
(2) Update the auto-damping script to include the above sophistication
(3) Offload what offsets you can to ISI and/or HEPI
(4) Make a model change such that the P and Y alignment offsets can be ramped (e.g. make the DCDRIVECAL gain a full filter bank, or add a ramp to the MASTER SWITCH, or something)
(5) Ask CDS to make the cdsEpicsIn block generate a TRAMP channel as well as a value channel on compile.

Garcia has volunteered to take on items (1) and (2) for now.

Comments related to this report

jeffrey.garcia@LIGO.ORG - 09:59, Wednesday 05 September 2012 (4088)

The auto-damping script for the H2 QUADs has been updated and committed to the "cds_user_apps" SVN repository.  The updates include a gain-ramping of 10s for the P2P and Y2Y DriveAlign matrix elements.  This will smoothly ramp the large DC M0 Pitch and Yaw offsets used for beam alignment. 

The script is committed to the SVN locally under:
'/opt/rtcds/userapps/release/sus/common/scripts/'

filenames:
"sus_auto_damp_quad.txt", "sus_auto_UNdamp_quad.txt"

jeffrey.garcia@LIGO.ORG - 11:20, Wednesday 05 September 2012 (4090)

The previously-broken links in the "SUS_CUST_QUAD_M0_DRIVEALIGN.adl" file have been repaired.  

The auto-generated filter module medms created by the RCG have had their filenames adjusted to a format resembling:
"H2SUSITMY_ITMY_M0_DRIVEALIGN_L2L.adl"

as opposed to a format previously used:  "H2SUS_ITMY_M0_DRIVEALIGN_L2L.adl"

The generic files are located locally:
"/opt/rtcds/lho/h2/medm/h2susitmy/H2SUSITMY_ITMY_M0_DRIVEALIGN_*2*.adl"

The custom medm file for the DRIVEALIGN overview ("/opt/rtcds/userapps/trunk/sus/common/medm/quad/SUS_CUST_QUAD_M0_DRIVEALIGN.adl") was edited to point to the correct filenames.

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