The EndY HEPI Pump Station servo controller had failed and we were running the Pump Station on just local control with no servo on the output pressure. The servo is now running and servoing the Pump Station output pressure to 80psi.
Both pslws2 and pslws3 computers were nearly non-responsive, so I rebooted them.
I forgot to write more detail about the fiber swap I did inside the MSR Beckhoff communications chassis tuesday and why I did this. LHO CDS has a standard concerning the fiber connection to the single mode patch panels running between the MSR and the outbuildings. For each fiber pair, in the MSR the left fiber is the transmit (going from MSR to outbuilding) and the right is the receive (outbuilding to MSR). At the outbuildings this is of course reversed, the left connector of the pair is the receive from the MSR, the right is transmit to the MSR. Ethernet switches use LC/LC SFPs, which has standardized on the left is the transmit. So in the MSR left on the SFP goes to left on the patch panel. I modified the Beckhoff chassis to this standard, which required switching the internal SC single mode connectors on both the Y-arm and X-arm fiber units.
Corey, Sheila Corey and I went out to End Y, Corey was checking the position of the IR beam on the middle panel of the ALS table and I was trying to align the camera for the green reflected beam. When we got there the qpd matrices were all zeros, after Chris did a burt restore of h1iscey to March 16th we could see that there was light on qpd A but not B. Vincent adjusted the isi alignment for us, and then I changed the offsets on PZT1 from 100 on both Pit and Yaw to 10000 in PIT and 6000 in YAW. We were then able to use the servos to center the beam on the QPDs. Corey marked his spot, and I roughly aligned the camera although there is no power to it, so we will probably need to adjust it once its powered up. I created a safe.snap file for h1iscey for this state, with the PZT servos off.
So far this week, Gerardo and Danny have successfully bonded an ear to the S3 side of each of the LLO ETM optics, namely ETM07 and ETM09. They are flipping the masses today to start the other sides.
Restarted cdsfs0 file server at 9:07 AM PDT, /ligo was read-only.
Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot requested from 5 PM May 21 to 5 PM May 22. Also attached are plots of the modes to show when they were running/acquiring data. mode: Connecting to NDS Server h1nds1 (TCP port 8088) Connecting.... done 13-05-22-19-01-47T0=13-05-22-00-00-00; Length=86400 (s) 600 seconds worth of data was unavailable on this server 1440.0 minutes of trend displayed status: Connecting to NDS Server h1nds1 (TCP port 8088) Connecting.... done 13-05-21-23-59-47T0=13-05-22-00-00-00; Length=86400 (s) 600 seconds worth of data was unavailable on this server 1440.0 minutes of trend displayed .3 micron: Connecting to NDS Server h1nds1 (TCP port 8088) Connecting.... done 600 seconds worth of data was unavailable on this server 1440.0 minutes of trend displayed read(); errno=9 read(); errno=9 T0=13-05-22-00-00-00; Length=86400 (s) No data output. .5 micron: Connecting to NDS Server h1nds1 (TCP port 8088) Connecting.... done 13-05-22-19-01-47T0=13-05-22-00-00-00; Length=86400 (s) 600 seconds worth of data was unavailable on this server 1440.0 minutes of trend displayed
Second cleaning of spool and the cleanroom over it. Spool was NOT removed today. Garbing/staging cleanroom cleaned. Meeting to discuss what needs to happen to prepare for cartridge build-up and get the cryo-pump baffle installed in a timely manner. Bubba will move one more cleanroom from the LVEA to the end station.
- Bring down HEPI at EY - Hugh - Doors put back on HAM4 with 4 bols, post ISI installation - Apollo - Vent EX - Kyle - Stabilizing ISS in the PSL - Volker & Rick - Spool Removal at EX - Apollo - Remove and replace SUS cables at HAM2- Richard - Prep for installing the photon calibrator periscope - Rick & crew - Ellensburg High School visit - Dale
Last week, Gerardo successfully bonded the ears onto ETM08, destined for the monolithic QUAD suspension for H1-ETMx. We will wait 1 month from May 17th before welding and hanging this optic.
Chris, sheila We made a temporary script, C:SlowControls Target H1ECATC1 PLC1 opcIocShells_startWithoutTiming.ps1 (for whatever reason, as soon as I try to post this the backslashes disappear, so I've put spaces where there should be a backslash) that starts only some of the opcIoc shells for PLC1 (most timing channels are not started) it starts: PLC1.in.001.db PLC1.in.012.db PLC1.in.013.db PLC1.in.014.db PLC1.io.001.db PLC1.io.002.db If we use the installation scripts to update, compile and active and run both PLCs, then select only PLC2 to use the restart database script, then go to the target area and run this power shell script, we should be able to use both the picomotors and everything on PLC2 (IMC common mode board, ect) without being extremely slow.
HAMs 1, 3, 5, 6 and BSCs 1, 2, 3 are in flushing configuration now. HAM 2 is in the operational configuration. Fluid was added to the reservoir on Tuesday as it was tripping for low level. Adding HAMs 5 and 6 has made a large difference in the max pressure we've seen from the pumps. Most likely we've cut out the low resistance flow areas now. Once HAM 4 is set to purge there should be another large pressure jump if this guess is right.
We are currently at 52.5 psi from a 1970 pump speed.
P.S. Switching off Servo Control caused a situation where 3 motors tripped out and only 1 motor was being driven from the remote. The other 3 pump controllers needed to be reset and put into run mode to operate normally again.
MC2 transmission QPD (HAM3) was centered using picomotors.
Couldn't center IM4 (HAM2) transmission, picomotors didn't move. Turns out that the cable was not routed from the chamber to IOT2L. Right now a seemingly incorrect cable (SUS something something) is connected to the pico feedthrough (D4-3C2).
After the correct cable was connected in the morning, I was able to move IM4 trans picos to center the beam.
The Y end system manager has a few times stopped receiving values from the bridge terminal, causing a communications error. going into the system manager, generating mappings and activating the configuration solves the problem, even though the configuration was already activated and other beckhoff modules were already receiving signals.
I did not make this entry.
Sorry, it was me.
Mark B and Travis.
Travis installed the top level OSEMs and retracted them fully. The OL values with gains and offsets are:
prettyOSEMgains(logOLs('X1','QUAD'),'QUAD')
M0F1 -25790 -1.163 12895
M0F2 -29266 -1.025 14633
M0F3 -30618 -0.980 15309
M0LF -24822 -1.209 12411
M0RT -25030 -1.199 12515
M0SD -21983 -1.365 10992
R0F1 -28836 -1.040 14418
R0F2 -22844 -1.313 11422
R0F3 -25991 -1.154 12996
R0LF -26764 -1.121 13382
R0RT -24718 -1.214 12359
R0SD -22399 -1.339 11200
To get this to work I had to add X1 support to both the Matlab functions.
The corresponding serial numbers for these BOSEMs are: M0F1 502 M0F2 486 M0F3 414 M0LF 580 M0RT 507 M0SD 479 R0F1 426 R0F2 497 R0F3 504 R0LF 468 R0RT 418 R0SD 434
Betsy swapped in a new BOSEM for M0 F1, so I updated the OL/offset/gain measurement:
M0F1 -20369 -1.473 10184
And serial number updated to:
M0F1 619
The attached OSEM chart has been updated with the new offsets and serial number values.
