Dave, Jim

A hardware watchdog chassis has been installed in the suspension electronics rack under the Binary Input and Output chassis at EY.  It is currently connected to monitor ports on the satellite amps for M0.  It is NOT connected to interrupt the drive from the coil drivers.  This is only for testing the watchdog.  The RMS output from the watchdog is connected to the h1pemey AA chassis channel 31, while 3 of the outputs to turn off the coil drivers are connected to h1pemey AA chassis channel 28-30 for monitoring.

The watchdog is powered up, and we can monitor the status, but we have not succeeded in sending commands to set parameters for testing.

Dave, Jim, Jeff, Filiburto

Software Watchdogs

I created new h1iopsusex and h1iopseiex models which use the new RCG2.8 Watchdog and DACKILLIOP parts. This permits the timed shutdown of SEI and SUS DACs if the excitation of the suspension(s) persits over a period of time. These parts are available with RCG2.8.3, so initially I built the models against this. For test purposes the countdown timers have been kept short, between 10 and 30 seconds.

I put together a new software watchdog MEDM in userapps cds/h1/medm/H1CDS_SOFTWARE_SUS_TARGETEDWD_EY.adl (targeted watchdog). We are starting with EY since this is the easiest model (one chamber, simple mapping between SUS and SEI, one IPC channel).

Jeff setup SUS ETMY to drive the DACs, I then tested the watchdogs using oscillators I built into the IOP for test purposes. There were no problems found.

I then set the release pointers to build out of RCG branch-2.8 to get the final version of the WD parts (with trip levels in mV) and the reset-cached bug fixed.

Hardware Watchdogs

To support in monitoring-only testing of the hardware watchdog (HWWD) in EY, I modified the h1susetmy model to add the HWWD part, and link it to the Binary input and output channels which are connected to the unit. We were able to read back the status of the front panel LEDs, but were unable to set the WD parameters. I then installed the HWWD part the h1sustmsy as a test of using different Binary chassis, but the problem remains. I backed out the change in h1sustmsy, and made a copy of etmy called h1susetmx_hwwd.mdl. By reverting the models I did not need to do a DAQ restart.

The release pointers were set back to 2.8.3 and the sus models were recompiled and restarted.

Situation at the end of the day

So at the end of this, the IOP models are the new targeted/timed DACKILL version built against Branch2.8, the SUS ETMY,TMSY are back to the original and the SEI ISI/HPI models were not changed today.

There are 12 unmonitored channels that will be removed tomorrow.

Gary

The LSAT lifting plates are attached to the lower structure.

Mark, Ed, Gary

The elevator, 5-axis table and installation arm have been removed from BSC3. The strengthening flange plates and flange protectors are installed on BSC1. We will finish installing the arm in the AM and fit the table and elevator.

This morning, we used the Genie "duct jack", the install arm, elevator, and 5-axis table to install the newly assembled ITMx Monolithic lower suspension into the chamber and mate it to it's upper structure.  All went as expected.  We then proceeded to start reconnecting wire segments and cabling.  When we mated up the lowest stage of the ESD cable, we had a small hiccup.  One of the 5 pin receptacles had fallen into the connector back shell on the end that is soldered directly to the CP.  With some care, we were able to gently fish it back out and push it into place with the wire which had been tugging on the other end of the pin receptacle.  We expanded the receptacle such that it seemed to hold itself in place better.  As well, all 5 receptacle "houses" were twisted such that they seemed to seat better in the connector.  We then connected this female connector to it's upper male cable counterpart and it "seemed" like it the connection seated properly.  We have no way of visually knowing though.  WE NEED TO CHECK THIS AT THE FEEDTHRU, OR SOMETHING.

Ken working on rewiring lighting in the control room

08:49 Cyrus rebooting network switch
08:54 Jason to work with Thomas on removal of ITMX optical lever components
09:07 Hugh to HAM6 to unlock and balance the ISI
09:18 Jeff K. restarting BS model for code change (WP 4666)
09:26 Cyrus rebooting network switch for phones
09:34 Betsy, Travis, Gary and Jeff K. installing ITMX
09:57 Jeff B. recabling dust monitors 1 and 6, moving dust monitor 1 to GV7 spool
09:57 Jason and Thomas done removing optical lever components
10:00 Gerardo and Scott assembling cyropump baffle
~10:32 Paradise water delivery
10:33 Bubba to end Y to get flange cover and bang board
10:35 Patrick added 250 mL H2O to H1 PSL diode room crystal chiller
10:39 Patrick reset the L4C counters for HAM4, ITMX and ETMY
10:40 Jeff B. done recabling and moving dust monitors
10:42 Cyrus rebooting front end network switch
10:45 Jeff and Andres working on contamination control kits for HAM4, 5
11:07 Cyrus rebooting the DAQ switch
11:13 Cyrus done work on network switches
11:22 Dave stopping models at end Y for work on IOP watchdogs (WP 4665)
11:28 Patrick restarted the weather station IOCs
11:35 Cyrus to end stations
11:45 Thomas leading tour through control room
11:49 Jeff and Andres done working on contamination control kits
12:14 Jim B. to end Y to swap cables for hardware watchdog
12:17 Cyrus back from end stations
12:37 Jim B. back from end Y
12:39 DAQ restart for Jeff K.'s model change

Corey to HAM6
Mid Columbia Forklift arrived to fix genie lift

15:48 Gerardo and Scott done working on cyropump baffle

Demonstrating that HAM5-HAM6 septum doesn't leak, or conversely, that it does.

Monitoring Amus 2, 5, 14 and 18 with an RGA mounted on BT port Y2-1 in the Y-mid station.  Pressure gauges PT424, PT423, PT246 and PT245 will be increasing during the next ~48 hrs. and should cross alarm thresholds at some point.  Alarms for these (4) gauges are anticipated and no action is necessary.  

Corey, Dan, Jeff B, Keita, Sheila

DOCUMENTATION REDLINES

During the HAM6 work from last week, we all noted variances, missing info, errors in documentation as we went.  Just wanted to post my specific list of items I came across.

D1300122:  HAM6 Cable Harness Routing Configutation

1. Both WFS_AS_A (25-pin cables) are at Flange D3 2C1 & 2 (instead of D5 3C1 & 2)...they follow the Flange Document (D1002877).  (D5 3C1 & 2 is instead being used as a Purge Air Port.
2. Some Tip Tilts could be labeled better.  Tip Tilt #2 (also named "M2"), is actually connected to what we call Tip Tilt#3 according to the Optics Layout & Flange Layout drawings.  Similarly, Tip Tilt #3 is actually what we call Tip Tilt #2.  This is basically just a naming discrepancy.
3. For Cable Bracket #1 (CB1), which is located on the OMC Structure, the cable runs occupy opposite Floors on CB1.  We tried to move these cables to the correct floors, but the cables were pretty tight on the OMC, so we opted to keep them as is.  So D1300369/D1000225 is really on CB1's 2nd Floor & D1300376 is actually on CB1's 1st Floor.
4. The OMC cables were handled/connected at CIT.  I could not determine their serial numbers (perhaps these cables were stamped with s/ns?).

D1000342:  ISC HAM6 Assembly

1. M7 has a picomotor!  (drawing shows this, but spreadsheet under drawing does not show this)
2. A variance is that we had to make adjustments to our WFS Sled opitcs & WFS for them to fit correctly on table.

PHOTOS

All photos of installation are in ResourceSpace, here.

Highlights of the work are attached to this alog.  Take special note of the scratches which were observed on a QPD (photos #7 & 8).

CABLING SPREADSHEET

To the best of my ability I made a spreadsheet noting cable serial numbers and where they were used in HAM6.  As noted earlier, the OMC cables were handled at CIT, and I was not able to note their s/n's.  Also, the OMC PZT in-air cable is not connected to the chamber, so it is not noted.  I do make note of the OMC CB floor discrepency noted above, as well as the switch of cables from D5 to D3.  Here is the HAM6 Cable Table:

Jason, Apollo, Thomas

We removed the optical lever as well as the camera components for the spool extraction. All the viewports have a lexan protector with a yellow viewport cover with the exception of the two ELIGO TCS viewports which have odd shapes and does not take a yellow cover or a lexan viewport.  These are covered with lens cloth and foil, both secured with cleanroom tape; these particular viewports are going to be taken out and replaced with blanks for ALIGO.

[Mark B Jeff B Arnaud P]

Yesterday we did some software debugging in the staging building in order to run transfer functions on the assembled quad 08.
When driving the top mass, we usually monitor the lower stages osems, in both osem and euler basis. For some reason the model running for the quad doesn't record those channels (particularly the ones in the euler basis "WIT_{L/P/Y}_DQ"). We decided not to spend too much time understanding what the model situation was, and instead simply not monitor the lower stages channels during the top mass TFs.

The undamped transfer function measurements for the main and the reaction chain are attached.
 

Betsy, Travis, Danny, Margot

Today, we finished deinstalling the ITMx lower section of the QUAD using the install arm and elevator.  All went as it was supposed to.  After transfering the load to the manlift and attaching the LSAT structure for support, we set it down onto one of the LSAT trollies we have.  We then separated the Main and Reaction chains.  Margot and Danny FirstContacted the CP front and back surfaces (spray for back, paint brush for front due to bump stop locations).

While FC work was going, Travis and I went into BSC1 and started prepping the ITMy for deinstallation.  By the end of the day (and some final muscle from Danny) we had the masses locked in positions which facilitate upper and lower segment separation, the cross braces and sleeve structures removed.  (Of course, see yesterdays alog for exact details of how this really happens with floor panels removed, etc.)  We also finished pulling the balance of the witness plates and witness optics in BSC1 and BSC2.

Note, when we removed the flooring in both BSC3 and BSC1 we found hidden treasures.  To be continued... 

:)

(Betsy, Travis, Danny, Margot)

Today we (undid some work! - ha):

- Swung the ACB back with it's swing-away hardware

- Put a TFE cap on the TCS steering mirror right in the line of foot-traffic and floor removal for protection

- Removed the stiffening braces and wedges (and ~40 fasteners) from the ITMx QUAD

- Removed 3 of the floor panels and removed the sleeve stiffening structure from the QUAD

- Started disconnection of all top stage OSEMs and cabling to lower stage OSEMs on QUAD

- Staged the QUAD hanger hardware and elevator adapter parts

- Richard swapped out my dead backup PS for the elevator - thx, RM for promptness

- Collected the witness plates/samples from BSC 1 and cleaned flooring there