Reports until 14:44, Tuesday 28 February 2017
LHO General
vernon.sandberg@LIGO.ORG - posted 14:44, Tuesday 28 February 2017 (34472)
Work Permit Summary for 2017 February 28
Work Permit Date Description alog/status
6508.html 02/28/17 11:10 AM Bug fix to get correct signal from LSC to ASC. Should be POPDC, but is accidentally REFLDC. 34461 & 34470
6507.html 02/28/17 10:00 AM Update default version of GDS code to gds-2.17.9-2 to fix an issue with foton (FRS ticket 7447, Bugzilla 1075) and an issue with the NDS2 interface for diaggui to collect reduced data set channel names along with raw names (Bugzilla 1072). 34457 & 34470
6506.html 02/27/17 04:02 PM Change the model to map what are used to be ASC-AS_D channels to PSL-DIAG_BULLSEYE channels. Add four 2k channels from the bulls eye to the frame. https://services.ligo-la.caltech.edu/FRS/show_bug.cgi?id=7515 https://dcc.ligo.org/E1700074-v1 34460
6505.html 02/27/17 02:56 PM Pull ADS block from LLO so that both sites have all the functionality they need, but we can both be using the same model again (they'll pull our full version after I finish). Model will be installed on maint. day, along with bullseye work permit work. 34470
6504.html 02/27/17 02:02 PM With IFO unlocked (during maintenance) try to identify sources of lines in power monitors which are coherent with lines in DARM. If we identify them, repeat test with locked IFO later.  
6503.html 02/27/17 01:50 PM Re-terminate HV Ion pump connector (Y2-8). Cable will be tested with the HiPOT tester to 5kV. Work will require access into End Y mechanical room. See alog 34385. 34466
6502.html 02/27/17 01:46 PM Add RACCESS numeric EPICS records to DAQ for trending (DAQ restart required). Create new target h1raccess and add all EPICS channels to autoBurt.req for hourly autoburt backup. 34470
6501.html 02/27/17 09:52 AM Regular PSL Maintenance: 1) Temperature tune HPO pump diodes after 2-25-2017 pump diode current increase. 2) Tweak beam alignment into PMC. For these activities the IFO needs to be DOWN and the ISS needs to be OFF. 34456
6500.html 02/24/17 12:56 PM Widen bandwidth of filter in OAF BLRMS. No change in SDF. The new filter will be loaded while we are not in observing mode.  
6499.html 02/24/17 10:09 AM Suspect another short in ion pump HV cable. Marc will test cable. 34466
6498.html 02/23/17 10:39 PM Measure beam spot positions on IMC mirrors. Intended target of time to do this measurement is during PEM measurements at LLO, expected to take place 24 Feb 2017.  
6497.html 02/23/17 04:43 PM I will perform a coherence test by taking coherence between the bullseye sensor and DARM as a function of PR3 spot position by intentionally misaligning interferometer mirrors. This will be done during the commissioning window tomorrow (Feb.24).  
6496.html 02/23/17 01:22 PM Run new fiber from server room to valve room, part of wireless upgrade. Work will involve removing ceiling tiles along main hallway in OSB.  
6495.html 02/23/17 01:11 PM Inventory OneStop cables on all front end computers, MSR, EX, EY, MX, MY, H2-building. Taking photos, non-invasive.  
6494.html 02/22/17 10:48 AM Deploy T240 Seismometer near BRS for staging to install in BRS Thermal Housing next Maintenance Day 34462 & 34463
       
Previous W.P.s      
6492.html 2017-02-17 17:25 Removed beam dump from the FLIR camera path (both CO2X and Y). This will be the new nominal configuration. 34459
6472.html 2017-02-09 16:29 De-energize LLCV electric actuators, remove electric actuator housing domes, lift 4-20mA and 24VDC wires from actuator and remove 1/2" flexible conduit from housings, tighten 1/2 conduit elbows to ensure good contact with their sealing o-rings, reconnect conduit to elbows, re-land wires, re-install housing dome and re-energize actuators 34133, 34151, & 34468
6457.html 2017-01-26 13:43 Remove Coil Driver BIO Connections to WD: Modify & Compile models; DeIsolate Platform; Restart model; Isolate ISI; DAQ ReStart required. 33776, 33799, & 34470