VIS Type B To-Do List

Archived items are at ../ToDoOld.

Every Week

Coming Weeks

Every Week

Facilities

• Vacuum and roll floor.
• Wipe ladders.
• Tidy tools, parts.

• Get stuff from ../WishList

2019-02-12

• Monday is public holiday.

Etc

• Wipe inside tanks with Vectra-Alpha wipes and ethanol.

BS

• Check focus of BS camera.
• Debug stepper remote enable.

SR2

• Install GAS filter control loops.
• Debug stepper remote enable.
• Get rid of SR2 cable reel (shutdown FE and rack, replug everything into new power strip, start up rack and FE).
• Split model.

SR3

• Debug stepper remote enable.
• Split model.

SRM

• Set up LEN OL (if/when 3D QPD stage arrives).
• Debug stepper remote enable.
• Check BIO connections for possible swap of GAS/IP.

Real-Time Model

• See KAGRA/Subgroups/VIS/OpsManual/Simulink

• Restart k1vissrmt (Wednesday during maintenance??):
  • Re-convert filter files.
  • Stop SRM Guardian (just stop it dead - don't transition to SAFE; don't let it meddle at all).
  • Make fresh safe.snap.
  • Note all TEST and OPTICALIGN offsets.
  • Put large ramp times (≈30++ s) in all DAMP, TEST and OPTICALIGN filters.
  • Turn off all DAMP, TEST, and OPTICALIGN filter offsets and master switch.
  • Restart k1vissrmt. If there are gross problems, consider restarting the whole FE.
  • Restore safe.snap.
  • Debug OVERVIEW, IP and WD screens (check for white channels etc).
  • Restore OPTICALIGN offsets (if necessary), transfer TEST offsets to new ALIGN filters and set long ramp times.
  • Set new WD thresholds for IP LVDT and ACC.
  • Enable all DAMP, ALIGN, and OPTICALIGN offsets.
  • Make sure SRM Guardian is pointing to generic Type B Guardian.
  • Adjust Type B Guardian code to set long ramp times on all DAMP, ALIGN and OPTICALIGN filters. Wrap the ALIGN stuff in an if block for now to not break BS/SR2/SR3.
  • Reenable Guardian if/when satisfied.
• Rebuild and restart k1visbst and initialize/test as for SRM.
• Create new k1vissr2t, k1vissr2p, k1vissr3t, k1vissr3p based on k1vissrmt and k1vissrmp. Be sure to update DCUID numbers:
  • SR2 FECT=54, FECT=55
  • SR3 FECT=56, FECT=57
  • (SRM FECT=58, FECP=59)
• Update DCUID numbers also in /opt/rtcds/userapps/release/vis/common/medm/vissr2_overview_macro.txt and vissr3_overview_macro.txt.
• Rebuild, restart k1vissr2t, k1vissr2p, k1vissr3t, k1vissr3p and initialize/test as for SRM/BS.
• For SR2, just before restarting with the new real-time models, power the whole front end down and replug everything into the new power strip.
  • Turn off all DC-powered boxes.

  • Shut down the FE computer using the web server at http://10.68.99.171.

  • Turn off the IO chassis using the switch on the front.
  • Turn off the DC power supplies.
  • Replug all AC-powered stuff (DC supplies, IO chassis, signal generator, routers) into the new power strip that is already there.
  • Restore everything in reverse order.
  • Reset the signal generator: 10 kHz, 5 Vpp, sine wave, ON.

Documentation and Operation Manual

• Add useful info from Enzo's notebook to BSData.

Minor Tasks

Mechanical

• Put pointy-tipped screw in RM trolley for BS

Electrical

• Update BS Circuit diagram, D1503600

  • Note removal of LED/PD on TM OSEMs.

  • Organize stepper reset system and watchdog BIO.
  • Include information on assignment of channels to feedthrough positions.
  • Reflect gender-changers and non-flipping feedthrough adapters.
  • Reflect actual cable lengths.
  • Include LVDT pin size (1 mm).
  • Include Stepper pin size (1.6 mm).

  • Undo renumbering of IP items.

  • Page 10: "DIO Card # 0" should be "DIO Card # 1"

  • Include OutConfigBoards on OL page (Sheet 18).

  • Update HPCD section to reflect:

    • All three GAS channels are on HPCD #1 and DIO Card #2, CNB cables, Sheet 13.

    • Three IP channels are on HPCD #0 and DIO Card #2, CNA cables, Sheet 15.

Real-time and SUMCON models

• Create SUMCON models for full BS and major installation milestones.

• Create controls design description (cf LIGO-T1100378).

• Make table of ADC/DAC assignments and check for consistency with D1503600 and k1visbs (Enzo, Mark)
• Understand/document/debug Kokeyama-san's DIO stuff.
• Measure LPCD and HPCD output filter response.
• Design and install software compensation filters for LPCD and HPCD output filters.

One Day, If Ever Needed

BS

• Tune BS LBB (adjust table height, damper height) - DON'T BOTHER (unless there's an excuse to open the lower half of the tank).
• Replace BS F0 thrust bearing and yaw adjuster - BIG JOB, DON'T BOTHER (unless lack of yaw adjustment becomes a major problem).
• (Continue to) soak the sapphire prisms off the dummy BS for reuse on the SRM metal mass.

SR3

• Replace chipped magnets (12x12x12 mm) in SR3 IP, H1 and H2.

SRM

• Install Enomoto-kun's beam target plate (if/when available).
• Find two geophone cables used by Okutomi-san. (I looked in the second floor EXV room but didn't find them - Mark.)
• Find one geophone cable ordered for SRM but missing.
• Rearrange miswired geophone cable.
• Rebuild defective geophone cable.
• Put FC on SRM-W and install it in its holder with 1.4 mm shims ready for possible use.