CSC - HV, LV - Present Status and Future Plans Toward Phase 2 9/13/2018 Petr Levchenko CERN

CSC & Peripheral Crate LV, Scheme for One Wiener Maraton Channel USC55 UXC55 Junction Box UPS CSC 230V AC PFC 380V DC DIGITAL ANALOG Patch Panel 380V DC Splitter Box 380V DC Maraton 6.5V DC 4.5V DC Peripheral Crate

To YE-1/2/3 or YE+1/2/3 (CANbus + Power) UXC CAN Bus Organisation USC55/S4F10 UXC55 Peripheral Crate PCMB OLD ELMB To YE-1/2/3 or YE+1/2/3 (CANbus + Power) CRB DELLPC/Kvaser PCI CANbus Patch Panel CANbus Power CANbus Power PCMB Distribution Box ATLAS Power Suppply CANbus NEW AnaGate Qutro CSC LV Maraton Power Supplys +/-YE1,2,3 OLD CANbus CANbus Maraton CAN Cabling Network DELLPC/Kvaser PCI CANbus 13.09.2018 EMU LV A.Golyash, TAMU, P.Levchenko, CERN

Phase 2 Plan_Maximum CSC – Electronics replacement + Fibre Cables (ME2,3,4,/1) Maraton + Bin->12/12pc, 0PFC + Card Cage->12/2pc – increase quantity JB – replace ALL->24JB/36pc cells PC – Power, fibre cables revision, replace OVME modules Correct CRB LED polarity and introduce green/red colour cod PCMB – no action except repair Cables to add/replace: Maraton->JB, 0PFC_S4->UXC 0PFC monitoring + S4_Cabling 9/13/2018 Petr Levchenko CERN

Phase 2 Plan_Minimum CSC – Electronics replacement + Fibre Cables (ME2/1) Maraton + Bin->4/4pc, 0PFC + Card Cage->4/1pc – increase quantity JB – replace on +/-YE2->8JB/24pc cells (mitigation old JB replacement still possible) PC –Power, fibre cables revision, replace OVME modules Correct CRB LED polarity and introduce green/red colour cod PCMB – no action except repair Cables to add/replace: Maraton->JB, 0PFC_S4->UXC 0PFC monitoring + S4_Cabling 9/13/2018 Petr Levchenko CERN

JB Cell Layout M4_In M8 M4_Out 9/13/2018 Petr Levchenko CERN

AC DC LV Power Generation over EMU_CSC P[W] YE+1,2,3_Sum = 52267.6 YE-1,2,3_Sum = 52289.5 P_CSC_TOTAL = 104557.1W K_DC/AC= 0.766 K_DC/AC= 0.766 9/13/2018 Petr Levchenko CERN

LV Power Generation over YE Disks versus Maraton #ID P_Mean = 2106W K_Mean(P/P_max) = 0.59 P_Mean = 2111W K_Mean = 0.59 P[W] P[W] + YE1 - P_Mean = 2266W K_Mean = 0.63 P_Mean = 2259W K_Mean = 0.63 P[W] P[W] + YE2 - P_Mean = 2212W K_Mean = 0.62 P_Mean = 2217W K_Mean = 0.62 P[W] P[W] + YE3 - 9/13/2018 Petr Levchenko CERN

Failure Probability P_Total = N_FailTot/N(65)/LVTotal(188) = 0.346 P_0PFC = N_Fail0PFC(46)/N_Tot0PFC(56) = 0.821 P_Maraton = N_FailMar(13)/N_TotMar(56) = 0.232 P_MaratonBin = N_FailMarB(4)/N_TotMarB(54) = 0.074 P_CardCage0PFC = N_FailCC0(0)/N_TotCC0(14) = 0.0 P_ATLAS_PSU = N_FailAT(2)/N_TotCC0(8) = 0.25 9/13/2018 Petr Levchenko CERN

Failure types 0PFC AC_Short, 0PFC_Burn, DC_LowDC_Low,VDC_Zero, Dumping_Diode, Thermo_Switch, Calibration, Modification, Cleaning Maraton, Bin, Card Cage CAN_Bus, Power_Module_UX,X,X, Power_Switch, Auxilery_Power, Output_Fault, Cleaning, Sense_Board, Modification, CAN_MonitoringBoard ATLAS PSU PSU_Module _Burn 9/13/2018 Petr Levchenko CERN

Failure rate by Years 0PFC ISR upgrade 9/13/2018 Petr Levchenko CERN

0PFC Monitoring Table (from cmsonline ECAL) First look

Conclusion CSC LV system shows rather reliable operation in previous physics run Failure rate was rather high for some system components but joint efforts CSC and Wiener highly improved this statistics Big impact in Peripheral Crate reliability (TMB 3.3V) was achieved by replacement (near 6000) tin plated PC backplane contacts by gold plated one. 9/13/2018 Petr Levchenko CERN

Backup Slides 9/13/2018 Petr Levchenko CERN

OPFC backplane in S4F04 rack M4 M3 9/13/2018 Petr Levchenko CERN

List of known LV problems: Maraton/0PFC Cables JB PC/CRB/PCMB CAN BUS CSC/LVDB 9/13/2018 Petr Levchenko CERN

JB and OPFC Maintains Work ME+/_1/1,2,3 Junction Boxes JB - 8 pc. Cells (serves 9 CSC) – 24 pc In one cell – 26 screws M8 Sum = 24 x 24 = 576 screws => ONLY One not tight In one cell – 9 + 9 screws M4 connected to Digital and Analog copper bar In one cell – 9 + 9 screws M4 connected to Digital and Analog lines of CSC Sum = 36 x 24 = 864 + 576 = 1440 pc S4F04 0PFC rack Crate -  9 pc. In one crate - 84 M4 screw. Sum = 84 x 9 = 756 screw. In one crate - 16 M3 yellow bar screws. Sum yellow = 16 x 9 =144 screw. Total = 900 screws 9/13/2018 Petr Levchenko CERN

Screws tighten statistics Quantity JB Statistics 0PFC Statistics 80% of screws where tighten by 1.5 - 2.0 full turns Of screwdriver Relative Number JB Statistics 0.4 0.2 1.5 2.0 N_Turn of screwdriver (out of scale) 9/13/2018 Petr Levchenko CERN

DCS Functional Schema Turbine ATLAS PSU emugif3 0PFC Maraton Emugif4 IN Red - TBD Turbine ME1/1 T_Sensors 1,,4 Temperature Patch Panel CAN Distribution Box P3 ATLAS PSU ME2/1 P4 Spare T_Sensors 5,,8 P2 +Frame Control P1 Port 1 P2 P3 P4 P2 CRB_PCMB PC CAN Q_CARD RS232 Adapter emugif3 0PFC USB Monitoring Emugif4 (Spare) LV Maraton 9/13/2018 Petr Levchenko CERN

View of damaged PCB bin of Mar. ID#21 and LTT 9/13/2018 Petr Levchenko CERN

P5 CSC DCS Functional Schema CSC@FAST Turbine P3 ME1/1 CSC@LTT T_Sensors 1,,4 Temp_Press Patch Panel CAN Distribution Box P3 ATLAS PSU ME2/1 P4 Frame Control T_Sensors 5,,8 P2 P1 Port 1 P2 P3 P4 P2 CRB_PCMB PCs CAN Q_CARD EMU-ME11--DCS1,2 LVTest Stands Maraton, LVDB,CRB, PCMB, T;P_Sensors 0PFCs USB Monitoring EMUSX5-LVTEST-DCS1,2 LV Maratons 9/13/2018 Petr Levchenko CERN

IR pictures of sense board jumpers Mar_ID#38 To JB_CSC TS-1/8, 9 Mar_ID#39 To PC VME-1/8,9 X2S33 Rack Mar_ID#37 To PC VME-1/6.7 ->OFF 9/13/2018 Petr Levchenko CERN

Jumpers of Maraton_ID32 T=54.4 degC on Ch_U5 T=151.4 degC on Ch_U4 9/13/2018 Petr Levchenko CERN