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ID Dateup Author Type Category Subject Text Attachments
  16697   Thu Mar 3 15:37:40 2022 AnchalSummaryCDSc1teststand restructuredc1teststand has been restructured. There
is no port computer called 'c1teststand'
anymore. When you ssh into the c1teststand
  
  16698   Thu Mar 3 17:09:46 2022 PacoUpdateBHDRe-susspension of AS1[Anchal, Paco]

Wire clamp spare was installed,
furthermore AS1 was reinstalled on adapter,
  
  16699   Thu Mar 3 17:21:11 2022 Ian MacMillanUpdateSUSETMY 1Y4 Electronics Replacement[Koji, Ian]

1) We attached the 30 coil driving
cables to the vacuum feed through to the
  
  16700   Fri Mar 4 11:04:34 2022 AnchalSummaryCDSc1susaux2 system setup and runningI took the c1teststand computer from teststand
and converted it into c1susaux2. To do so,
I installed a fresh copy of debian 10 on
 40mBHD_C1SUSAUX2_Acromag_Chassis.pdf 
  16701   Fri Mar 4 18:12:44 2022 KojiUpdateVACRGA pumping down1. Jordan reported that the newly installed
Pirani gauge for P2 shows 850Torr while PTP2
show 680 Torr. Because of this, the vacuum
 Screenshot_2022-03-04_19-38-11.png 
  16702   Sat Mar 5 01:58:49 2022 KojiSummaryCDSpaola rescueETMY end ThinkPad "paola" could
not reboot due to "Fan Error".
It seems that it is the failure of the CPU
 PXL_20220305_035255834.jpgPXL_20220305_034649120.MP.jpg 
  16703   Sat Mar 5 02:03:46 2022 KojiUpdateSUSETMY 1Y4 Electronics ReplacementOplev saga

Summary 

- The new coil driver had not enough
 6x 
  16704   Sun Mar 6 18:14:45 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsFollowing repeated failure to establish
communication between c1vac and the XGS600
controller via Perle IOLAN serial device
 iolan_xgs_comm_investigation.pdf 
  16705   Mon Mar 7 10:06:32 2022 YehonathanUpdateIOOIMC unlocked again, completely misalignedCame this morning and saw that the IMC
is unlocked.

Went into MC Lock screen and see
 Screenshot_2022-03-07_10-15-19.png 
  16706   Mon Mar 7 13:53:40 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsSo it appears that my deduction from
the pictures of needing a cable swap was
correct, however, it turns out that the installed
 iolan_xgs_comm_live.pdf 
  16707   Mon Mar 7 14:52:34 2022 KojiUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsGreat trouble shoot!

> I guess, the only remaining
issue now is the incorrect atmospheric
  
  16708   Mon Mar 7 14:55:33 2022 KojiUpdateIOOIMC unlocked again, completely misalignedHmm, the bias values were reset at 2022-03-03-20:01UTC
which is 2022-03-03-12:01 PST with no apparent
disruption of the data acquisition (= no
  
  16709   Mon Mar 7 16:44:15 2022 Ian MacMillanUpdateSUSETMY SUS Electronics ReplacementNow that the ETMSUS is back up and running
I reran my measurements from the beginning
of the process. The results below show
 6x 
  16710   Mon Mar 7 16:56:08 2022 YehonathanUpdateBHDRe-susspension of AS1{Paco, Yehonathan}

We tried to roughly balance the
adapter with two counterweights at the front,
 signal-2022-03-07-171520_001.pngsignal-2022-03-07-172659_001.jpegsignal-2022-03-07-172659_003.jpeg 
  16711   Mon Mar 7 18:53:16 2022 KojiUpdateBHDRe-susspension of AS1Not sure if that small difference can cause
the alignment inability. Particularly, the
removed metal was just below the wire. This
  
  16712   Mon Mar 7 19:38:47 2022 AnchalSummaryCDSc1susaux2 slow controls issuesI tried to perform a simple enabling test
of coils using c1susaux2 modbus channels
but failed. I'm able to do the enabling
  
  16713   Tue Mar 8 12:08:47 2022 TegaUpdateVACOngoing work to get the FRG gauges readouts to EPICs channelsOMG, it worked! It was indeed a calibration
issue and all I had to do was press the "OK"
button after selecting the "CAL"
 XGS600_calibration.pdf 
  16714   Tue Mar 8 12:24:13 2022 YehonathanUpdateBHDRe-susspension of AS1The gluing seemed to be successful. I assembled
the side block with the magnet on the adapter.
Paco helped me hang the adapter on the SOS
 AS1_Roll_Balance.pngAS1_Height_Balance.pngFreeSwingingSpectra_new.pdf 
  16715   Tue Mar 8 19:29:36 2022 PacoUpdateBHDRe-balance of AS1[Paco]

Installed AS1 in vacuum, near the
center of the table, and installed the OSEMs.
  
  16716   Wed Mar 9 09:35:26 2022 PacoUpdateBHDRe-balance of AS1[Paco]

AS1 is installed, OSEMs balanced,
and the optic damped successfully. We should
  
  16717   Wed Mar 9 10:23:28 2022 JordanUpdateVACLeak Testing of New Manual Gate Valve - Attempt #1Jordan, Chub, Paco

Chub and I went into the lab this
morning to leak check the new gate valve
  
  16718   Wed Mar 9 11:52:18 2022 YehonathanUpdateBHDSimplified BHD readout sketch on ITMY tableI have made an editable
draw.io diagram of the planned simplified
BHD setup on the ITMY table (see attached). 
 ITMY_Table_Sketch.drawio.pdf 
  16719   Wed Mar 9 12:57:52 2022 KojiUpdateBHDSimplified BHD readout sketch on ITMY table- BHD beams were already mixed in the chamber.
So we don't need a BS on the table. (Probably
there is no BS already)
  
  16721   Thu Mar 10 09:39:59 2022 JordanUpdateVACLeak Testing of New Manual Gate Valve - Attempt #2This morning Chub and I leak checked the
manual gate valve with the RGA and helium.
There was no change in the helium partial
 3-09-2022.PNG3-10-2022.PNG 
  16722   Thu Mar 10 10:05:49 2022 PacoUpdateSUSAS1 free swing test[Paco, Ian]


Begin free swinging test
for AS1 at 10:05 AM, set for ~ 2.04 hours.

Test
 SUS_Input_Matrix_Diagonalization.pdf 
  16723   Fri Mar 11 16:43:03 2022 Ian MacMillanUpdateSUSETMY SUS Electronics ReplacementI updated the gain of the ct2um filter
on the OSEMS for ETMY and decreased their
gain by a factor of 9 from 0.36 to 0.04.
  
  16724   Mon Mar 14 12:20:05 2022 AnchalSummaryCDSc1susaux2 slow controls acromag chassis installed[Anchal, Yehonathan, Ian]

We installed c1susaux2 acromag
chassis in 1Y0 with c1susaux2 computer. We
 BHD_WatchDogs.png40mBHD_C1SUSAUX2_Acromag_Chassis.pdf 
  16725   Tue Mar 15 10:45:31 2022 PacoUpdateGeneralAssembled small in-vac optics[Paco]

This morning I assembled LO3,
LO4 and AS3 (all
  
  16726   Tue Mar 15 11:52:34 2022 AnchalSummaryCDSc1su2 model updated for sending Run/Acquire Binary Output to Binary Interface cardI routed the XXX_COIL_DW signals from the
7 SOS blocks in c1su2.mdl (located at /cvs/cds/rtcds/userapps/trunk/sus/c1/models/c1su2.mdl)
to the binary outputs from the FE model.
 c1su2.pdf 
  16727   Tue Mar 15 13:49:44 2022 Ian MacMillanBureaucracyTreasureNew Screwdriver BitsI have received the new screwdriver bits
that will work with the two electric screwdrivers
we have. I have distributed them in the 40m.
  
  16728   Tue Mar 15 14:10:41 2022 AnchalSummaryCDSc1su2 model remade, reinstalled, restarted after the updateI have restarted c1su2 model with the connections
of Run Acquire switch to analog filters on
coil drivers. Following steps were taken:
  
  16729   Tue Mar 15 18:42:37 2022 AnchalSummaryBHDPart IX of BHR upgrade - AS1 resuspended and OSEMs tunedhttp://nodus.ligo.caltech.edu:8080/40m/16722

http://nodus.ligo.caltech.edu:8080/40m/16716
  
  16730   Tue Mar 15 18:45:12 2022 AnchalSummaryBHDPart X of BHR upgrade - BHDBS Path setup[Paco, Anchal]

BS Chamber work


ASL
was positioned in nominal place.
PR3
  
  16731   Thu Mar 17 11:40:41 2022 PacoUpdateSUSETMY green PZT HV supply[Anchal, Paco]

We installed a HV kepco power supply
for the green PZT steering the YAUX beam.
  
  16732   Thu Mar 17 16:50:53 2022 PacoUpdateBHDXARM AUX alignment[Ian, Paco]

We opened the ITMX chamber and


Inspected PR2 and LO1 and
  
  16733   Thu Mar 17 17:23:22 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment[Anchal, Yehonathan] (on Y Arm)

We first checked if the PZT mirrors
M1 and M2 can be controlled. They indeed
  
  16734   Thu Mar 17 19:12:44 2022 AnchalSummaryCDSc1auxey1 slow controls acromag chassis installed, not powered[Anchal, Tega]

We installed c1auxey1 computer
and the acromag chassis in 1Y4. The computer
  
  16735   Fri Mar 18 17:15:19 2022 PacoUpdateBHDXARM AUX alignment cont.[Paco, Ian]

First, we re-balanced the ITMX
OSEMs so that they would damp at around half-a-shadow.
 Screen_Shot_2022-03-18_at_4.09.38_PM.png 
  16736   Fri Mar 18 18:39:13 2022 YehonathanSummaryCDSc1auxey1 slow controls acromag chassis installed, powered{Yehonathan, Anchal}

We connected the c1auxey1 chassie
to the different boxes (coil drivers, SAT
  
  16737   Fri Mar 18 19:10:51 2022 AnchalSummaryCDSc1auxey1 slow controls issuesI started the modbusIOC service on c1auxey1
and added PD variance channels for UR and
SD as well.  There are unfortunately
  
  16738   Mon Mar 21 14:22:52 2022 AnchalUpdateSUSETMY Alignmnet offsets needed to be changedI'm not sure why but the PIT and YAW
offset values of +2725 and -2341 were not
sufficient for the reflected OPLEV beam to
  
  16739   Mon Mar 21 18:00:05 2022 Ian MacMillanUpdateBHDXARM AUX alignment cont.[Ian, Paco]

Continuing with the previous alignment
that we stoped on friday, we re set up my
 PXL_20220322_015247138.jpg 
  16740   Mon Mar 21 18:24:07 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment on Yarm[Anchal, Tega]

We did the following alignment
steps on Yarm today:
  
  16741   Mon Mar 21 18:42:06 2022 AnchalSummaryCDSc1auxey1 slow controls issuesAnother issue, Green Y Shutter can not
be controlled with the EPICS controls right
now. This needs to be investigated.
  
  16742   Thu Mar 24 19:20:28 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment on Yarm[Anchal, Paco]


Uneloged: yesterday, Paco
and Ian tried locking the green laser on
  
  16743   Fri Mar 25 11:39:14 2022 AnchalUpdateSUSETMY SUS Electronics Replacement - QuestionsAfter Ian updated the cts2um filters for
OSEM, shouldn't the damping gains be
increased back by factor of 10 to previos
  
  16744   Fri Mar 25 18:20:28 2022 AnchalSummaryBHDPart IIa of BHR upgrade - Green laser alignment on Yarm[Anchal, Paco, Shruti]


Today we found out that
the laser controller at the Yend had it's
  
  16745   Sat Mar 26 13:04:38 2022 PacoSummaryBHDPart IIa of BHR upgrade - Green laser alignment on YarmI came for a bit to check on the "1Y0
burning smell" reported by Koji last
evening. I agree that there's a toasty
  
  16746   Mon Mar 28 16:25:34 2022 Ian MacMillanUpdateSUSETMY SUS Electronics Replacement - QuestionsThe point of changing the gains was to
return the system to its origional state.
ie I wanted the over all gain of the physical
  
  16747   Tue Mar 29 15:07:11 2022 TegaSummaryVACOpening of MC and ETM chambers[Anchal, Chub, Ian, Paco, Tega]

Today, we opened the MC chamber,
ETMX chamber and ETMY chamber.
  
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