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.
Based on estimates from HWS measurements on the weekend, I have tweaked the absorption coefficients to the following:
caput H1:TCS-SIM_ITMX_SURF_ABSORPTION 250E-9
caput H1:TCS-SIM_ITMY_SURF_ABSORPTION 280E-9
I set the IMs back to their values during a full lock with OMC on March 12, 12:00:00UTC.
I accepted the new offsets - attached here.
Shutdown the dust monitor at HAM6 to get it out of the way of the grouting crew. This will be left off until it is replaced with the new monitors. This cut-over is planned for this Wednesday. The only LVEA or VEA dust monitor currently running is in the Bier Garden.
TITLE: 03/14 day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC STATE of H1: Unknown INCOMING OPERATOR: Jeff SHIFT SUMMARY:' LOG: :20 Chris S 400 yds from corner station; X-arm beam enclosure sealing project; all day work. 17:00 Reibolt on site for grouing. 16:09 Hugh and John into the LVEA 09:18 Fil into LVEA to find John for work permit sign-off 17;37 Hugh Done at EX; breif stop in at LVEA and then to EY 17:39 Christina and Karen headed to EX 17:45 Fil and TJ into LVEA to pull cable 18:25 Lights on at EY 18:27 Jeff out of LVEA 18:35 Karen and Christina leaving EX and headed to EY. 18:55 Fil and TJ out of LVEA for lunch 19:08 Dave barker executing WP 5775 19:18 Hugh back from EY and going into toe LVEA 19:26 Hugh out
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 reset the flow sensor control and external shutter request. This restored the images. This occurred during the big CDS reboot.
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.
