Agenda/Minutes on 2021/2/5

Zoom Meeting

Activities in this week

2021/01/29 - 2021/01/31

1

• klog#15871: VIS/General, kouseki.miyo, ISOLATED state is available with only LVDTs not blended sensors.

• klog#15870: CAL/General, dan.chen, YPcal noise investigation

• klog#15869: VIS/PR3, fabian.arellano, Comment to Gluing the mirror wire. (Click here to view original report: 15844)

• klog#15868: VIS/General, kouseki.miyo, Some suspensions are not SAFE.

• klog#15867: DGS/General, takahiro.yamamoto, Security update for the gateway server

• klog#15866: VIS/IX, ryutaro.takahashi, Comment to Cabling for cryo-payload (Click here to view original report: 15860)

• klog#15865: DGS/General, takahiro.yamamoto, Installation of a new script server (k1script1)

• klog#15864: VIS/IX, takafumi.ushiba, Comment to Cabling for cryo-payload (Click here to view original report: 15860)

• klog#15863: CAL/General, dan.chen, Safety measures in EYA area

• klog#15862: CAL/General, dan.chen, New storage space for apparatus

• klog#15860: VIS/IX, ryutaro.takahashi, Cabling for cryo-payload

• klog#15859: VIS/General, shinji.miyoki, Comment to Temperature during O3GK. (Click here to view original report: 15816)

• klog#15858: VIS/PR2, kouseki.miyo, Comment to The PR2-SF's stepper motor has stalled. (Click here to view original report: 15857)

• klog#15857: VIS/PR2, satoru.ikeda, The PR2-SF's stepper motor has stalled.

• klog#15856: VIS/PR3, fabian.arellano, Comment to Gluing the mirror wire. (Click here to view original report: 15844)

• klog#15855: PEM/General, shoichi.oshino, Replaced wether station PC

• klog#15854: VIS/General, satoru.ikeda, Comment to Relay Switch of Stepper Motor Driver (Click here to view original report: 15847)

• klog#15853: VIS/SR3, fabian.arellano, Looking for a place for a thermistor around the payload.

• klog#15852: VIS/PR3, fabian.arellano, Comment to Gluing the mirror wire. (Click here to view original report: 15844)

• klog#15849: CRY/Cryo-payload IX, takafumi.ushiba, Comment to Cabling between BF and PF (Click here to view original report: 15835)

2

• klog#15848: CAL/General, darkhan.tuyenbayev, PcalY noise investigation on January 26

• klog#15844: VIS/PR3, fabian.arellano, Gluing the mirror wire.

• klog#15847: VIS/General, satoru.ikeda, Relay Switch of Stepper Motor Driver

• klog#15846: VIS/General, shinji.miyoki, Comment to Temperature during O3GK. (Click here to view original report: 15816)

• klog#15845: VIS/General, satoru.ikeda, Comment to We investigated the network connection. (Click here to view original report: 15737)

• klog#15843: VIS/General, shinji.miyoki, Comment to Temperature during O3GK. (Click here to view original report: 15816)

• klog#15842: DGS/General, takahiro.yamamoto, Hangup problem on k1tw0 is maybe fixed

• klog#15841: VIS/EY, kouseki.miyo, Comment to Stepper motor circuit for ETMY_IP seems be broken (Click here to view original report: 15839)

• klog#15840: VIS/EY, kouseki.miyo, Comment to Stepper motor circuit for ETMY_IP seems be broken (Click here to view original report: 15839)

• klog#15839: VIS/EY, kouseki.miyo, Stepper motor circuit for ETMY_IP seems be broken

• klog#15837: CRY/Cryostat IY, nobuhiro.kimura, Comment to Start cooling of the payload at IYC (Click here to view original report: 15768)

• klog#15838: VIS/General, takaaki.yokozawa, Comment to Temperature during O3GK. (Click here to view original report: 15816)

• klog#15836: VIS/PR3, fabian.arellano, Traverser motor connection check

• klog#15835: CRY/Cryo-payload IX, takafumi.ushiba, Cabling between BF and PF

• klog#15834: DGS/General, takahiro.yamamoto, BS workstation update

• klog#15833: CRY/General, takafumi.ushiba, Storage of MN/PF OpLev viewports and laser source

• klog#15832: IOO/IMC, kenta.tanaka, Comment to IMC alignment (Click here to view original report: 15830)

• klog#15831: VIS/General, satoru.ikeda, Installing picomotor drivers for PR2_BF and PR3_BF

• klog#15830: IOO/IMC, masayuki.nakano, IMC alignment

• klog#15829: VAC/General, tatsuki.washimi, Vacumm monitor

CRY+VIS Interface Meeting

13:30-14:00

Participants:

Post O3 Upgrade portal

Copy from previous meeting

• Schedule for IX: Connection is scheduled in the week of 2/8.
• Schedule for IY: Disconnection was scheduled on 3/11.
• Schedule for EX: Connection was scheduled in the week of 3/15.
• Corrugate tube fixing jig: Re-measurement is planed in 2/26-3/1 at IYV.
• Commissioning in vacuum: Two phased commissioning will be tried in IX at beginning. After that, one phase is default.
• Acceptance check: Cryo-payload in IX and Type-A tower in EY are on going.
• Jig for FC painting: Under manufacturing.
• PF actuator: by the end of January.

VIS Meeting

14:00-16:00

Participants:

Progress report

General

Type-A

Type-B

Type-Bp

Type-C

Controls

Electronics

Towards O4

• Type-B/Bp remedy work is on going.
• Installation of Type-A is on going in EY.
• Schedule.

  • Chart

• Procedure documents.

  • Type-A tower installation

  • Limit switches

  • Limit switch connecting guide

  • Replacement of TF blades

  • Wire gluing in PR3

  • Type-B remedying work

• Criteria in the acceptance test.

  • Inspection document (sample)

Safety

Discussion

Travel Plans

Next meeting