TITLE: 06/25 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
INCOMING OPERATOR: Corey
SHIFT SUMMARY: Full day of maintenance due to vacuum work at mid Y (WP 8250). Maintenance continues at close of shift.
LOG:

15:09 UTC Robert and students to LVEA to set up vibrometer and pull viewport covers (WP 8253)
15:19 UTC Vanessa to end X to clean
15:21 UTC Weed control company through gate
15:22 UTC Fire department through gate for hydrant testing
15:26 UTC Gerardo to mid Y (WP 8250)
15:33 UTC Karen to end Y to clean
15:35 UTC Marc to end stations to swap baluns. Starting at end X. (WP 8255)
15:36 UTC Jeff B. done forklifting (WP 8257)
15:44 UTC Jeff B. to end stations and corner station mechanical room to check HEPI pumps and dust monitor vacuum
15:47 UTC Filiberto to LVEA to swap laser power supply fans (WP 8249)
15:48 UTC Lock loss
15:55 UTC Hugh taking corner station HEPI platforms to OFFLINE (WP 8256)
15:56 UTC Jason adjusting PMC alignment from control room
15:57 UTC Rahul starting charge measurements at end Y
16:00 UTC Hugh checking/charging corner station HEPI fluid accumulators (WP 8256)
16:10 UTC Paradise water through gate
Peter transitioning LVEA to laser safe (WP 8260)
16:15 UTC Seal coat solutions through gate
16:22 UTC Jason done adjusting PMC alignment
16:28 UTC Norco LN2 delivery through gate
16:31 UTC Unifirst through gate
Jeff K. leading tour to LVEA (WP 8251)
16:36 UTC Peter done transitioning LVEA to laser safe
16:37 UTC Karen leaving end Y
16:39 UTC Jeff B. done
16:45 UTC Rahul starting charge measurements at end X
16:47 UTC Marc done swapping baluns at end stations
16:56 UTC Dick G. to CER
17:08 UTC Ray through gate
17:08 UTC Dave to end X
17:11 UTC Peter to optics lab
17:17 UTC Hugh bringing corner station HEPI pump back online
17:19 UTC Karen to LVEA
17:21 UTC Tour done
17:22 UTC Dave starting work at end X (WP 8247)
17:22 UTC Chris to LVEA to start checks on forklifts, etc.
17:24 UTC Marc and Ray to vault (WP 8248)
17:29 UTC end Y charge measurement done
17:45 UTC Rick and company to end X, PCAL
17:56 UTC Filiberto done swapping fan on ALS power supply (WP 8249)
18:02 UTC end X transitioned to laser hazard
18:07 UTC Dave turning off DAQ switch at end X (WP 8247)
18:37 UTC Chris out of LVEA
18:41 UTC Cheryl transitioning LVEA to laser hazard
18:41 UTC Hugh taking end Y HEPI platforms to OFFLINE (WP 8256)
Hugh to end Y
18:55 UTC Jeff B. opening OSB receiving door
18:56 UTC Cheryl done transitioning LVEA to laser hazard
19:03 UTC Rick and company leaving end X to get equipment and break for lunch
19:04 UTC Dave back from end X
19:07 UTC Marc and Ray back from vault. Ray left the site.
19:19 UTC Filiberto and Peter transitioning end Y to laser hazard
19:22 UTC Hugh, Filiberto and Peter leaving end Y
19:35 UTC Dave to end X, adding admin cable to new network switch
19:36 UTC Hugh back from end Y, bringing HEPI back online
19:55 UTC TJ restarting ISC_LOCK guardian
19:57 UTC Filiberto done at end Y
20:06 UTC Chris bringing new dishwasher to OSB with forklift
20:12 UTC Christina driving down arms to get receipts from Norco
20:15 UTC Rick and company back to end X
20:41 UTC TJ taking equipment to LVEA
20:43 UTC Karen to end Y to drop off supplies
20:44 UTC Dave back to end X
20:47 UTC TJ back
20:59 UTC Jeff B. moving equipment into cleaning area
21:00 UTC Gerardo to LVEA to make measurement of HAM5 door
21:10 UTC Peter to optics lab
21:38 UTC Dave done working on switch
21:47 UTC Chris to LVEA to unplug equipment
21:51 UTC Hugh to LVEA to take measurements of HAM chambers for A+ work
22:02 UTC Chris done
22:04 UTC Hugh done
22:18 UTC Marc and Filiberto to LVEA to look at racks
22:21 UTC Jeff B. done
22:36 UTC Cheryl done running transfer functions on IMs
22:55 UTC Marc to LVEA to swap balun (WP 8261)

We are testing a new version of the TwinCAT EPICS Ioc in the corner.

To revert: remote desktop into h1ecatc1. Close the IOC (running in a poweshell window). Start a new one using the "Restart EPICS database" button in the "LIGO TwinCAT Target Configuration" app.

To restart: Make sure the old IOC is gone. Go into C:\SlowControls\Target\H1ECATC1, right click on "start_tcioc_2_0.ps1" and select "Run with PowerShell". ("start_tcioc.ps1" is for the old code)

Version 2.0

Added features:

• Updated to Visual Studio Community Edition 2017
• Updated to EPICS base-3.15.6
• Updated to expat version 2.6.6
• Support 64 bit libraries and applications
• Support for info records: Info records reside in the tcIoc and describe local parameters, such as the state of the PLC, the tpy filename, ADS/AMS address, etc. This features is enabled by using the new tcInfoPrefix function to specify a channel prefix string.
• Support for a new print command tcPrintVal 'var name' which can be used to print a single or multiple variables using wildcards.
• New Download directory with binary files.

Bug Fixes:

• Fix 64 bit issuses
• ALIAS has been added to the replacement rule list
• Fix MT lock issue in record callback
• Use MT-safe compare/exchange in record read/write
• Documentation clean up

TITLE: 06/25 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    Wind: 11mph Gusts, 7mph 5min avg
    Primary useism: 0.08 μm/s
    Secondary useism: 0.09 μm/s
QUICK SUMMARY:

Y-arm is still blocked (MY GV10 & GV11 are CLOSED), so Long Maintenance Day continues.

Michael Ross attempted to upgrade the BRS code at EndX (WP 8258) but it would hang up after a few tens of seconds.  Michael was unable to trouble shoot and there seemed to be trouble with the Twim Cat and a file it was looking for.  There was also network slowdowns or sothing and even difficulties running the old code.  After rebooting the old code worked again and has been now for a couple hours.  Something inherent weird happening though as the BRSY hung up as well and we never logged into that machine.  Same behavior as in even the old code would hang a few 10 of seconds after restarting.  Once the computer was restarted, EndY has now run fine for a couple hours.

Krishna & Michael will be back in a couple weeks and we'll maybe have the time for more thorough TS.

WP 8249

The power supply for the ISCT6 laser was uninstalled to replace failing fans inside the unit. Status of the unit before uninstalling:

1. Unit not screwed to its mounting brackets.
2. Unit sitting on some rubber pads for isolation.
3. Laser Diode temp (set) 20.22
4. Laser Diode curr (actual) 1.856 5. Laser Crystal (both set & actual) 31.83

Both fans inside the unit were replaced. Unit was reinstalled as found without the mounting brackets attached and left on the rubber pads. Here are the setting after install. I was careful not to move the knobs for the temp/current setting:

1. Laser Diode temp (set) 20.23
2. Laser Diode curr (actual) 1.872
3. Laser Crystal (both set & actual) 31.83

WP 8252

Change to system manager checked into svn and reloaded.

Screenshot of initial svn update prior to work attached.

Today's OPLEV charge measurement did not go through successfully since the ISI tripped at both the ends (roughly after taking 45 mins of data). I am not sure about who was working at the end station, although there were a few stuff going on. I will look for another window today since the detector will down for 8 hours of maintenance.

   Bimonthly check of the dust monitor vacuum pumps, revealed no problems or issues. Made a slight tweak to the vacuum pressure in the corner station. Both end station pressures were normal, and no excessive temperatures were found. 

   Check the HEPI fluid levels at both end stations (Hugh had already checked the CS). 

   End-Y was unchanged at 9 0/16. 

   End-X was down by 1/16 to 8 8/16. Did not observe any apparent leaks. If fluid level drops again on the next check, will inspect the system for leaks. 

The LVEA has transitioned to LASER SAFE.

    This is related to work permit #8260.

The PMC reflected power has been creeping up the last couple of weeks, from 9.8W to 10.4W, so this morning I tweaked the beam alignment into the PMC (remote from the control room).  This was done with the ISS OFF.  Before I started, the PMC was transmitting 53.8W and reflecting 10.4W.  Once complete the PMC was transmittng 54.2W and reflecting 10.0W.  With the extra power out of the PMC the ISS RefSignal needed to be adjusted to maintain the diffracted power % between 2% and 3%; the ISS RefSignal is now -2.06 V and the diffraction % is ~2.4%; this has been accepted in SDF.  With the ISS back ON, the PMC is transmitting 54.5 W and reflecting 10.0 W.

Both PSL power watchdogs were reset at 16:18 UTC (9:18 PDT).  This completes FAMIS 10716.

Edit to add:  I accepted the ISS RefSignal change for both the SAFE and OBSERVE SDF files.  When transitioning back to the SAFE file, SDF was showing yet another high-precision 10^-16 difference for the ISS RefSignal (it does this almost everytime I switch between SDF files).  I accepted this for the SAFE file, but did not go back to the OBSERVE file to check.  So note to the on-shift operator repsonsible for recovering after today's extended maintenance: when going to OBSERVE for the first time you may see a 10^-16 SDF difference for the ISS RefSignal; accepting this difference is OK.

Tue Jun 25 13:26:36 PDT 2019

For channel(s):

    H0:FMC-CS_FIRE_PUMP_1

    H0:FMC-CS_FIRE_PUMP_2

TITLE: 06/25 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
INCOMING OPERATOR: Patrick
SHIFT SUMMARY:
LOG:

Last Lock: 25:43:33

10:05 Begin IA

10:30 Begin locking

12:01 H1 back to Observing

14:46 PEM Weekly script running - Intention bit Commissioning

14:50 Chris and Jeff B moving lift trucks

14:51 Chandra and Kyle heading out to MY - gate valves

14:57 Sensor correction turned off and H1 in Preventive maintenance mode

6.3 & 6.6Mag quakes from Japan reported incoming. Attempted to switch to Large Earthquake mode. This most likely broke the lock. However P & S waves already spikiing BLRMS

I was looking at riding out the smaller aforementioned quake when a verbal came in with a 5.8 from somewhere I wasn't familiar with. As a precautionary measure I made the switch. Jim's new SC output lights said it was ok. ;-)

See screenshot for error midway up the log.  All I did was reload INIT_ALIGN guardian and it seemed to move on fine.  Maybe needs more investigation.