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CSC Status Report

CSC Status Report. Status reports; Issues with System reliability and Maintainability (LV, HV, Electronics modules and crates, internal interfaces) External Interface reliability (Cooling, Power, TTC, DAQ) Prepared for CSC by Fred Borcherding FNAL. Overview.

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CSC Status Report

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  1. CSC Status Report Status reports; Issues with System reliability and Maintainability (LV, HV, Electronics modules and crates, internal interfaces) External Interface reliability (Cooling, Power, TTC, DAQ) Prepared for CSC by Fred Borcherding FNAL ESSC Nov 2008 > CSC Status Report by Fred B.

  2. Overview • Status of Electronics > Installed / Total at CERN / Good Spares • Status of Crates and boards, how many are needed, how many are at CERN and how many are good spares • Issues with System reliability and Maintainability • LV > Wiener Maraton system (air cooled) • Problems with OPFC modules • CANBus communication problems with Maraton units • HV > Resistors • Electronics modules and crates • On-chamber Electronics • Other Electronics • internal interfaces • External Interface reliability • Cooling • Power • TTC • DAQ ESSC Nov 2008 > CSC Status Report by Fred B.

  3. Status of Electronics > Installed • Status of Electronics > Installed / Total at CERN / Good Spares • Status of Crates and boards, how many are needed, how many are at CERN and how many are good spares • The following few slides are included for completeness ESSC Nov 2008 > CSC Status Report by Fred B.

  4. On-Chamber Boards • CSC On-chamber Electronics Boards installed /total /spares • CFE 30520306050001xxxxx CFEB one type, 5(4) per chamber 2268 /?? /19 • ALC 30520112030001xxxxx ALCT ME1_1 72 /?? / ?? • ALC 30520112030288xxxxx ALCT288 ME1_3 72 /?? /10 • ALC 30520112030384xxxxx ALCT384 ME1_2, ME234_2 214/?? /11 • ALC 30520112030672xxxxx ALCT672 ME2_1, ME3_1, ME4_1 108 /?? /4 • ALM 30520112130001xxxxx ALCT_MEZ one type, 1 per chamber 468 /?? /?? • LVD 30521222040001xxxxx LVDB one type, 1 per chamber 468 /?? /?? • LVM 30521222130001xxxxx LVMB one type, 1 per chamber 468 /?? /?? • AFE 30520106050001xxxxx AFEB one type, many per chamber ?? /?? /?? • NOTE: Have ~18 spare chambers, each with full complement of on-chamber boards – these are not in the sums above ESSC Nov 2008 > CSC Status Report by Fred B.

  5. LV & PCRATE • CSC LV Power Supplies > Wiener Maraton System, Air Cooled installed /total /spares • PFCB LVPS 72500xxxx OPFC Bin (Crate) 6 /8 /2 • PFCM LVPS 71960xxxx OPFC Module 36 /40 /4 • MARS LVPS 72920xxxx Maraton Supply 36 /40 /4 • MARC LVPS 72960xxxx Maraton Crate 36 /38 /2 • Peripheral Crate, pcrate, Components installed /total /spares • EMUPC PC 305216030320050xxxx pcrate crate 75 /60 /15 • CBP PC 305203021620050xxxx pcrate back plane 70 /60 /10 • CRB PC 305203180220050xxxx pcrate regulator brd 88 /60 /28 • PCM PC 305216031320060xxxx PCMB 79 /60 /19 • ELM PC 305205121320050xxxx ELMB on PCMB 79 /60 /19 • Pcrate boards installed /total /spares • VCC PC 305222030320050xxxx Crate Controller 73 /60 /15 • CCB PC 305203030220050xxxx Clock and Control 84 /60 /24 • DMB PC 305204130220040xxxx DAQ Mother Brd. 550 /468 /82 • MPC Trigger PC 305213160320050xxxx Muon Port Card 70 /60 /10 • TMB Trigger PC 305220130220050xxxx Trig Mother Brd. 570 /468 /102 • RAT Trigger PC 305218012020050xxxx RPC ALCT Trns. 690 /468 /222 ESSC Nov 2008 > CSC Status Report by Fred B.

  6. CSC HV • HV ME1/1 > CAEN System installed /total /spares • Cc HV1 3052## Crate 2 /2 /0 • Cc HV1 3052## Board 16 /18 /2 • HV > UF Custom System installed /total /spares • HV UF Custom System installed /total /spares • HDS 30520804192005xxxxx Distribution-36 126 /159 /33 • HDL 30520804122005xxxxx Distribution-30 144 /173 /29 • HDC 30520804032005xxxxx Distrib Crate 30 /34 /4 • HDP 30520804162005xxxxx Distrib Patch 8 /9 /1 • HMB 30520813022005xxxxx Master board 40 /48 /8 • HMC 30520813032005xxxxx Master Crate 8 /10 /2 • HPS 30520816192005xxxxx Primary HV src 8 /10 /2 • HCC 30520803032005xxxxx Control comp 2 /3 /1 • HLV 30520812222005xxxxx LV power supply 2 /3 /1 • HMP 30520813162005xxxxx Master Patch 2 /1 /3 • HLP 30520812162005xxxxx LV patch panel 2 /4 /2 • HCP 30520803162005xxxxx Control patch 2 /4 /2 • HPC 30520816032005xxxxx Primary HVPS ctr 2 /3 /1 (spare parts) ESSC Nov 2008 > CSC Status Report by Fred B.

  7. CSC Track Finder • CSC TF installed /total /spares • CCC Trigger TF 3052000000200500000 9U CAEN VME 1 /3 /1 • 0 Trigger TF 3052200603200500000 wiener crate ( trigger) 1 /2 /1 • 0 Trigger TF 3052200602200500000 TF backplane 1 /3 /2 • DDU Trigger TF 3052 200500000 DDU 1 /2 /1 • DDE Trigger TF 3052040405200500000 DDU extender 1 /3 /1 • TSP Trigger TF 3052201916200500016 SP 12/17 /2 • CCB Trigger TF 3052030302200500025 CCB 1 /3 /1 • 0 Trigger TF 3052000000200500005 muon sorter 1 /5 /3 ESSC Nov 2008 > CSC Status Report by Fred B.

  8. CSC FED • FED Crates > Wiener 9U VME installed /total /spares • FED FED 3052060504200510000 FED Crate 4 /4 /0 (1 sp PS) • FED Boards > OSU Custom Brds installed /total /spares • CVC FED 3052032203200510000 CAEN 6U CC 4 /5 /1 • One sent to CAEN for repair, good spare is loan from pool • DCC FED 3052040303200510006 Clock and Control 4 /6 /2 • 2 more to be shipped to CERN • DDU FED 3052040421200510032 Data Board 36 /?? /?? • Pcrate Network > GBit installed /total /spares • GNS GIG 3052071419200510001 GBit Ethernet switch 8 /10 /2 (1 sp installed) ESSC Nov 2008 > CSC Status Report by Fred B.

  9. Issues with System Reliability and Maintainability • LV > Wiener Maraton system (air cooled) • Problems with OPFC modules • The front panel switch has been a problem – the quick connect to the switch becomes unreliable • Plan is to have the connection soldered after agreement with Wiener • The Soft Start can fail and damage module • Turning the power OFF and then back ON too quickly can cause the failure • This is a feature of the slow ramp-down inside the module • For now the fix is administrative • Only experts cycle switches > with proper time interval observed • Shifters instructed (& procedures) to switch ON only if they are found OFF > never cycle • CANBus communication problems with Maraton units • Recently observed > not yet diagnosed • CANBus PC crashes – could be symptom or cause • Note LV stays ON and hardware protections stay in place • But DCS monitoring and software protections are lost • Reboot computer • Cannot communicate with Maratons • Cycle power to Maraton(s) – see problem above • Then communication can be restored • Works BUT have to restart and reinitialize electronics for multiple crates plus 9 chamber per crate. Also cannot be done on the fly but requires time between runs. ESSC Nov 2008 > CSC Status Report by Fred B.

  10. Issues with System Reliability and Maintainability • HV > problems with resistors in UF custom system • A resistor is used for each channel to measure the exact voltage applied to that channel >> over 10,000 channels • The resistor used has failed to retain its factory specifications • The resistance moves up or down significantly over relatively short time periods • This change can be calibrated out but would require re-calibration before each run • We will replace these resistors during the coming shutdown • Modules will be removed from tower racks in cavern • Resistors will be swapped in the ISR clean room area • QA, tests and calibrations will be carried out at ISR • Modules will be re-installed • The process will be carried out sequentially so that most of the HV for CSC is operational at all times. • Electronics modules and crates • On-chamber Electronics • Old problem with fuses on ALCT boards is corrected • Very limited access makes repair of ‘normal’ failures very difficult > thus we have an inventory of deferred interventions • Other Electronics • PROM issues for pcrate boards • Program for onboard FPGA’s is stored in local PROM and reloaded at each hard reset • These PROM’s loose their program with the result that the connected chamber is lost to the readout • A reprogram of the PROM brings it back without problem • But need to find a solution > being worked on • internal interfaces > no issues ESSC Nov 2008 > CSC Status Report by Fred B.

  11. External Interface reliability • Cooling • During CRAFT running the cooling on detector and in counting rooms has been reliable • We are working to add additional DCS linked temperature sensors in CSC cavern racks to detect problems in a finer grained way and to monitor trends • Power • Power upstream of our LVPS has been reliable. • TTC > no particular problems • DAQ • Occasionally the CSC FEDS have sent FMM warnings and errors generated by problem front-end boards • Since the Central Trigger stops a run on an FMM warning or error we have disabled FMM reporting by our front-end boards • This will result in a negligible loss of data • We will review this decision when we are allowed access to fix the small number of boards • CSC along with other systems have problems associated with start of run • the source has been identified in the software and fixes will be implemented ESSC Nov 2008 > CSC Status Report by Fred B.

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