[Aidan, Cao]
The TCS SIM model has been updated. Further details soon, but now there are calibrated channels for the arm powers. The values are in Watts. The names are:
H1:TCS-SIM_XARM_POWER
H1:TCS-SIM_YARM_POWER
Transition Summary:
Evening Shift 23:00 – 07:00 (16:00 – 00:00) All times in UTC (PT)
State of H1: IFO unlocked. Vacuum system work and grouting in the LVEA
Commissioning:
Outgoing Operator: Ed
TITLE: 03/15 day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC STATE of H1: Planned Engineering INCOMING OPERATOR: Jeff SHIFT SUMMARY:'Maintenance LOG: 14:15 Chris S; X-Arm beam tube sealing; 300 yards from end station. (morning work) 15:00 Grouting in LVEA 15:48 Hugh out to LVEA work around HAM2. Jim handling ISI damping. 16:30 Fil into LVEA to do WP5778 16:27 Bubba going to MX and EX with Cintas people. 16:45 NORCO on site with LN2 load for EX 17:00 Fil called from LVEA. Key Lock is intslled on TCS Y and by Kiwamu's instruction, ENABLED. FIl heading to do the same for TCS X. 17:15 Water Delivery 17:29 Second LN2 truck on site 17:43 Fil back from LVEA. TCS Y Key Lock done. Heading back out to execute WP5735 18:19 Joe, Sheila and Hang out to LVEA 18:40 Joe out of the LVEA 19:05 Truck here to pick up rental equipment 19:00 Fil out of LVEA for lunch 20:53 Carlos to reboot all workstations at end stations 21:18 Joe back into the LVEA 21:30 Fil and Manny out of LVEA 21:40 Joe out 21:55 Jeff to both end stations 22:18 Gerardo to MY/CP3 for manual fill 22:24 Fil out to LVEA to retrieve cables 22:30 Bubba out of fan room headed to EX 22:35 Gerardo is back from MY/CP3
Other than knuckle bustin head bangin pain, not too bad a job. Did find the data connector for the '3rd' corner satellite box seemed extra loose on HAM3. It has a gender changer as well so there was a lot of strain & wobble present. Fil saw that there was no fasteners tying the header to the board so it was just held with the pins and solder. He managed to get some screws in without too much disassembly--certainly better now. Say a hail-mary against 0.6hz.
1/2 open LLCV bypass valve, and the exhaust bypass valve fully open.
Flow was noted after 2 minutes, closed LLCV valve, and 3 minutes later the exhaust bypass valve was closed.
Next over-fill on Thursday, March 17th before 23:00 utc.
Chandra, John
We transitioned to Turbo pump on the X Beam Manifold at 15:00 local time.Pressure is currently 3 e-1 torr.
The Y Beam Manifold is currently at ~5 torr.
On the vacuum overview medm I have replace the PT170 and PT180 gauge pairs with the new Beckhoff gauge. The Beckhoff IOC was running the TORR records with zero precision, so I have manually set the PREC field to 2 for these (using caput, we need to make this permanant).
FAMIS #4666
Attached are 7 day pitch, yaw, and sum trends for all active H1 optical levers.
After Richard, Fil and Patrick got the new PT170 and TP180 Beckhoff gauges being read out by ECATC1PLC1, I elected to add these channels to the H0EDCU_VE.ini DAQ file after we encoutered problems getting the full ecat ini file transfered to the userapps area. The additional lines are shown below.
Hugh and I had performed a "make install-h1isiitmy" earlier in the afternoon, so this DAQ restart required us to restart the H1ISIITMY model. We confirmed with Hugh and made the model restart just prior to the DAQ restart.
The DAQ was restarted at approx 6pm PDT Monday, The TORR channels are trending correctly. I modified the vacuum overview MEDM screen to display the TORR channels.
This morning we copied the new h1ecatc1plc1 autoBurt.req file into the ecat target.
[H1:VAC-LX_X2_PT170_PRESS_VALID]
[H1:VAC-LX_X2_PT170_PRESS_OVERRANGE]
[H1:VAC-LX_X2_PT170_PRESS_UNDERRANGE]
[H1:VAC-LX_X2_PT170_PRESS_TORR]
[H1:VAC-LX_X2_PT170_PRESS_SENSOR]
[H1:VAC-LX_X2_PT170_PRESS_TRIP]
[H1:VAC-LY_Y2_PT180_PRESS_VALID]
[H1:VAC-LY_Y2_PT180_PRESS_OVERRANGE]
[H1:VAC-LY_Y2_PT180_PRESS_UNDERRANGE]
[H1:VAC-LY_Y2_PT180_PRESS_TORR]
[H1:VAC-LY_Y2_PT180_PRESS_SENSOR]
[H1:VAC-LY_Y2_PT180_PRESS_TRIP]
Replaced the keyswitch on the TCS Laser Controller Chassis. Old keyswitch allowed user to remove key in both on and off position. New switch does not allow key to be removed when CO2 laser is on.
Placed a DC power breaker switch in-line with the TCS ISS Interface chassis (Bug 668) on TCSY and TCSX.
Added 125ml water to the X-chiller. Removed the lower side panel to get a good view of the diode chiller reservoir. Added 2000ml water to the diode chiller. I have replaced the side panel.
Carlos, Jim, Dave: WP5775
Yesterday (Monday 14th March) we moved most of the NFS exported files from h1boot onto a new server called h1fs0. This move was more invasive than last week's /ligo file system move as all front ends and DAQ computers were impacted.
The process was:
The DAQ restart was messy. We saw the two framebuilders report different data CRC which we had not seen before. Also h1fw1 restarted with apparent slow file access for some time and then the problem apparently went away. We are monitoring this.
Today we are catching those machines which were overlooked yesterday.
For systems which only mounted /opt/rtcds from h1boot, I have a script to convert them to mount from h1fs0:
#!/bin/bash
# make changes to move the h1boot mounts to h1fs0
# in /etc/fstab, replace mount command with sed
cd /etc
cp fstab /tmp/fstab.$(date +%Y%m%d%H%M%S)
cp fstab /tmp/dave.tmp
cat /tmp/dave.tmp|sed 's/h1boot:/h1fs0:/rtopt/g' > fstab
# ensure h1fs0 has entry in /etc/hosts
cd /etc
cp hosts /tmp/hosts.$(date +%Y%m%d%H%M%S)
echo "10.101.0.13 h1fs0" >> /etc/hosts
Log for work done Monday March 14 under WP 5776 and WP 5777. The BSC7 X2 PT170 and BSC8 Y2 PT180 Pirani and Cold Cathode vacuum gauges were replaced with Inficon BPG402-SE EtherCAT vacuum gauges. Filiberto connected these to the second EtherCAT port of the h1ecatc1 computer: 'h1ecatc1 (in MSR) Local Area Connection 4' - 'ethernet cable' - 'CU1521 EtherCAT media converter (Multimode) (in MSR)' - 'fiber cable' - 'CU1521 EtherCAT media converter (Multimode) (in LVEA)' - 'ethernet cable' - 'CU1128 EtherCAT junction box (in LVEA)' The CU1128 EtherCAT junction box has 8 ports: Port 1 is the incoming connection. Ports 2 and 3 were left empty. BPG402 on BSC7 (Box 294 in the system manager) was connected to port 4. BPG402 on BSC8 (Box 295 in the system manager) was connected to port 5. Ports 6, 7 and 8 were left empty. I added channels for these in PLC1 and updated the system manager. I committed the changes to svn and restarted everything. I may have also gotten some changes that Joe B. committed to svn for PLC3 (see attached screenshot). When I restarted the EPICS IOC the script that automatically copies over the generated error medm screens, INI and autoburt request files failed. A screenshot of the error is attached. I used WinSCP to copy over the INI and autoburt request files by hand. The following channels were added for these gauges: H1:VAC-LX_X2_PT170_PRESS_VALID H1:VAC-LX_X2_PT170_PRESS_OVERRANGE H1:VAC-LX_X2_PT170_PRESS_UNDERRANGE H1:VAC-LX_X2_PT170_PRESS_TORR H1:VAC-LX_X2_PT170_PRESS_SENSOR H1:VAC-LX_X2_PT170_PRESS_TRIP H1:VAC-LY_Y2_PT180_PRESS_VALID H1:VAC-LY_Y2_PT180_PRESS_OVERRANGE H1:VAC-LY_Y2_PT180_PRESS_UNDERRANGE H1:VAC-LY_Y2_PT180_PRESS_TORR H1:VAC-LY_Y2_PT180_PRESS_SENSOR H1:VAC-LY_Y2_PT180_PRESS_TRIP
The failure of the script to copy over the files was because /opt/rtcds was not mounted on opsws3 due to the file server change over.
Hang, Sheila, Kiwamu,
Last night, we have locked PRMI with the sidebands resonant in order to check the behavior of the AS90 signals in a simpler configuration. The measurement suggested that our previous understanding on AS90's behavior (25999) was likely incorrect.
PRMI was locked with 20 W PSL light in order to obtain sufficient signal-to-noise ratio at the AS WFSs. The arm cavities were not included because the gate valves were closed during the measurement. In this configuration, the same behavior as reported in 25999 was observed -- steering BS produces AS90 signal that has the opposite sign against the DC centering signals. Previously we thought this could be explained by SRC introducing imbalance in the sideband amplitudes. However in this PRMI configuration, the imbalance in their amplitudes should be a second order effect and therefore we should not see the same behavior if the theory was right. But we saw the same behavior. This means our understanding was likely inaccurate.
In addition, we confirmed that the AS90 signal responds to the BS angle even if the DC centering loops are closed. This confirms that the AS90 can detect a wavefront tilt. So they are not just RF optical lever, but also wavefront sensors.
TITLE: 03/15 day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Unknown
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
Wind Avg: 5 mph
Primary useism: 0.03 μm/s
Secondary useism: 0.52 μm/s
QUICK SUMMARY: Maintenance Day
(John, Chandra, Gerardo)
WA-1A Adapter spool modifications
Removed viewport from port VP2 (ZV800 type) and installed a different viewport D1201191 SN010.
Removed blank from port VP4 and installed the viewport removed from VP2.
WA-1B Adapter spool modifications
Removed viewport from port VP5 (ZV800 type) and installed a different viewport D1201191 SN001.
Removed blank from port VP3 and installed the viewport removed from VP5.
All viewports have their viewport protector installed.
Activity Log: All Times in UTC (PT) 22:45 (15:45) Take over from Ed 23:15 (16:15) Reset Stage 1 WD trip on ITMX 01:13 (18:13) DAQ restart - Picked up ITMY ISI model change 02:30 (19:30) Ops support not needed for the rest of the evening shift - Going home End of Shift Summary: 03/14/2016, Evening Shift 23:00 – 07:00 (16:00 – 00:00) All times in UTC (PT) Support: N/A Shift Detail Summary: Some commissioning work still going on but does not need Ops support.
(John, Chandra, Gerardo, Kyle) John, Chandra -> Vented XBM Gerardo, Chandra -> Viewport work at WA-1A on XBM (see separate aLOG for details) Kyle -> Installed new Bayard-Alpert/Pirani wide range gauge on BSC7 John, Chandra -> Began XBM pump down John, Chandra -> Vented YBM John, Chandra, Gerardo -> Viewport work at WA-1B on YBM (see separate aLOG for details) Kyle -> Installed new Bayard-Alpert/Pirani wide range gauge on BSC8 Chandra, Kyle -> Began YBM pump down Kyle -> Halted pump down of XBM and YBM by closing Turbo Header hand valve, Turbo Safety valve then Turbo inlet Gate Valve -> will resume attended pumping tomorrow NOTE: To resume rough down, valves must be opened in reverse sequence to that listed above to prevent pressure drop across Turbo inlet Gate Valve.
WP 5773, FRS 4554 aka II 1058, ECR E1500244, D1400363
With the platforms down for the computer restarts today, seemed like a good time to get going on this.
Power down CPS Interface chassis, pull H1 St1 card & switch to slave (Jumper on P2,) pull dual plug power conditioning board & replace with single, switch cables from local sync to common 71MHz chassis sync cables. Power on Timing Distribution Chassis, power on the CPS Interface Chassis.
I'll post before and after spectra of the CPS once computing is back up.
Here are spectra of the local CPS on ETMX. Reference from ~3am and currents from ~3pm (after swap obviously.) No glaring issues at this point.
And here too is similar for ETMY--Offhand it looks like the Stage1 H2 card could use plugging in a few times as it is a little noisier now. Likewise, Stage2 H3 is a little noisier as well.
Hey! Super! I got that backwards. The current traces are less noisy! It is the old reference traces before the switch that had higher noise levels at EndY. Dodged the extra labor on that one!
I notice that the TCS Y laser is off and reporting a flow alarm. The flow meter shows that the chiller is currently running. I don't think this laser was in use but was running and it would be better not to leave it in this alarm state. Either the power supply should be turned off if the laser is not needed, or it should be reset by turning the controller key on/off and pressing the gate button on the controller.
An instruction on how to restart TCS chiller and controller box can be found here.
Both TCSX and TCSY chillers were found to be tripped with an error messgage 'Low Temp'. I have power cycled the two units. And cycled the key on the X and Y CO2 laser controllers. They are now back up and functioning.
Thanks Kiwamu. The LOW TEMP warning will almost certainly have occured because the DAC at some point has been restarted and caused a zero voltage out to the chillers. This problem is meant to be getting fixed soon with an electronics fix.
It looks like the lasers are now ready to lase, and now you've reset the warnings with the key to get them running you probably just need to press the gate (on/off) button on the front of the controller. I'm not sure you need them right now though.