Powering tests preparationmeeting 6 Mirko Pojer and Matteo

Powering tests preparation_meeting 6 Mirko Pojer and Matteo Solfaroli

Cryogenics § IT. R 8 “stability check” ongoing § Cryogenics for S 12 and S 23 is in a “unusual” configuration with both sectors cooled by the unique installation of P 18 (configuration required by the intervention on the transformer at point 2) o § § § Cold box will be cooled down starting on Friday, but not connected till Monday to avoid risks of loosing cryo conditions for the w/e S 78 “maximum heat load” from March 14 th to 16 th S 23 “maximum heat load” from March 15 th to 17 th 2 days will be needed at the end to set S 23 and S 78 in Run II configuration 9/17/2020 3

Pre-powering activities All PCs de-condemened All UPS tests completed 9/17/2020 4

General news § New firmware upgrade done in RR 53: o § § Synchronization adjusted between sequencer and QPS…the sequence works PNO. d 1 automatic analysis for 120 A reviewed with a new version deployment of the Acc_testing…the analysis now works! Current detection on dump resistor of RB. A 81 and RB. A 34 showed 0 A on discharge of PLI 2. b 2. Automatic analysis failed (as the calculated discharge was incorrect), but they were signed manually (the discharge was correct!) QPS_TIMEOUT not sufficiently long in few cases for PLI 3. b 1…will be increased today RU Circuits ramped to 50 A with present ACC and DIDT values o DIDT will be increased today to 0. 3 A/s (LSA updated, PC to be synchronized) 70% of tests completed 9/17/2020 Mirko Pojer – BE/OP 5

S 12 § “Communication” problem in L 2 - “Setting: qps io not executed” § Missing in XR 1 o o RQX. R 1 fails to go to SB…EPC intervention this morning 600 A ongoing § Missing in LR 1 o o o IPQs ongoing RD 2. R 1 ready for nominal 120 A – PNO. d 1 missing § Missing in A 12 o o Mains available, to be reintroduced in the GPM IPQs started – no problem so far 600 A well advanced from 2 L, firmware deployed in 1 R Few 60 A failed and can be repeated 9/17/2020 Mirko Pojer – BE/OP 6

S 12 § Missing in ML 2 o o IPQs completed but RQ 5. L 2 (did not come back from PM) 120 A – last test missing § Missing in XL 2 o o o RQX. L 2 - PIC ongoing RD 1. L 2 - PIC ongoing 600 A ongoing 9/17/2020 Mirko Pojer – BE/OP 7

S 23 § Missing in MR 2 o One 120 A – last test missing § Missing in XR 2 o o o RQX. R 2 ready for nominal RD 1. R 2 ready for nominal 600 A ready for nominal § Missing in A 23 o o o Mains at 2 k. A step IPQs ongoing (RQ 8. R 2 and RQ 9. R 2 QPS cannot be reset…they are out of GPM) 600 A, 120 A and 60 ongoing 9/17/2020 Mirko Pojer – BE/OP 8

S 34 § Missing in A 34 RB – COMMISSIONED RQs – COMMISSIONED All 600 A done, excluding o o o RCS/D failed PIC 2_circuit_quench_via_QPS (test cannot have run in parallel, maybe just try to repeat them? ) Three 120 A - PNO. d 1 to be signed by EPC and MP 3 RCBV 13. L 4 B 2 – resistance of warm cables, El. QA intervention this morning § Missing in ML 4 o o RU. L 4 – Inductive being improved (PC to be synchronized) One 120 A - PNO. d 1 to be signed by EPC and MP 3 9/17/2020 9

S 45 § § Missing in MR 4 RU. R 4 – last step missing. . . PC to be synchronized One 120 A - PNO. d 1 to be signed by EPC and MP 3 o o Missing in A 45 RB. A 45 – ready for PNO. b 2 RQD/F. A 45 - ready for the 760 A test RQ 9. L 5 blocked as QPS parameters needs massaging (NEED for RETESTING? ? ) 600 A ongoing: o o § o o Missing in LL 5 o § UA 47, commissioning almost completed RR 53 ongoing (timing issue between QPS and sequencer fixed) o RQ 6. L 5 – When simulating the quench, the detector freezes – circuit again blocked (heaters already fired three times) One 120 A failed PNO. d 1 to be repeated Missing in XL 5 o 600 A: o RCBXH 2. L 5/RCBXH 3. L 5 - TT 893 bad regulation problem fixed…test to be repeated 9/17/2020 10

S 56 § Missing in XR 5 o o o RQX. R 5 – QPS controller blocked in logging (cannot be reset) 600 A started 120 A started o o IPQs – PIC almost completed One 120 A to be repeated o o Mains to be “reset” after UPS test All other circuits ready to start but 600 A from 5 R (firmware to be deployed) § Missing in LR 5 § Missing in A 56 § Missing in ML 6 o Two IPQs missing the step at nominal 9/17/2020 11

S 67 § Missing in A 67 o o Mains to be “reset” after UPS test All other circuits potentially ready to start but 600 A from 7 L (firmware to be deployed) § Missing in MR 6 o o Two IPQs missing the step at nominal Two 120 A missing the last step 9/17/2020 12

S 78 § Missing in A 78 o RB. A 78 blocked – EE works well, but many errors in microswitched data in the automatic analysis o RQD. A 78 ready for test at nominal RQF. A 78 failed test at 2 k. A (see below) IPQ – RQ 6/7. L 8 problem with QPS detector (interlocking all ARC) 600 A ongoing o o o almost completed from 8 L o no tests for 7 R since the new firmware is not yet deployed o o 120 -60 A almost completed § ML 8 - COMPLETED § XL 8 - COMPLETED 9/17/2020 13

S 81 § Missing in XR 8 o 600 A – RCBXV 3. R 8 failed on T regulation o One 120 A failed PNO. d 1 (signed by EPC!) o RB. A 81 – last test (4 h long) done, but needs to be repeated for splice analysis…really? ? What about RB. A 34? ? RQs - COMPLETED 600 A almost § Missing in MR 8 § Missing in A 81 o o Completed in 8 R We can start in 1 L (new firmware deployed) o One 120 A - PNO. d 1 signed by MP 3! o Two 600 A to be analysed - regulation issues § LL 1 COMPLETED § Missing in XL 1 9/17/2020 14

Accesses § § § § § Maintenance of Alimak lifts of PM 18 and PM 32 from 7 h to 8 h 30 on Fri 11/3 Thu. 10/03 -1 h - Restart power line for motors and emergency stop of low beta cryostat alignment system (UPS tests consequence) Friday 12: 25 -12: 45 – point 1 - Visit of Dr France A. Córdova, Director of National Science Foundation (NSF) Pressure valves for RP stations in 6 R 1 - possibly 4 -5 hours on Friday and the same on Monday Wed. 16 th March, 8 h 30 -10 h 15 AM: forcing the end-of-zone door of the UJ 561 in order to reach the PM 56 lift for the CMS Emergency guide training course (patrol lost) Thu. 17 th March, 19 h-21 h: commissioning of the smoke detection of UXC 55 (no personnel underground as the evacuation sirens will ring in all underground areas, LHC tunnel and CMS caverns) BLM in IP 4 (RF zone) 1 h @9 am Needs to check in high urgency TDI mechanical end stop and LVDT calibration CV at PM 32 on Tue. 15/03 MKIs de-condemnation 9/17/2020 Mirko Pojer – BE/OP 15