Low Voltage Power Supplies for ALICE ALICE week June 04 L.Jirden Detector requirements Target Devices Procurement Actions.
Download ReportTranscript Low Voltage Power Supplies for ALICE ALICE week June 04 L.Jirden Detector requirements Target Devices Procurement Actions.
Low Voltage Power Supplies for ALICE ALICE week June 04 L.Jirden Detector requirements Target Devices Procurement Actions 1 Detector requirements Quantities ALICE total ~160 LVPS crates and ~2000 PS channels Draft technical specification (Spec) Electrical characteristics Mechanical characteristics Monitoring and control Cooling Environment Standard chapters on: construction, safety, reliability, quality assurance, documentation 2 Spec: Electrical Characteristics DC Output Modular design; 2 – 7 V, 4 – 250 A modules LVPS 2 – 7 V, 4A 24h stability < 5mV or 0.1% 6m stability < 20mV or 0.5% Noise & ripple < 10mV p to p LVPS 2 – 7 V, 250A 3 Spec: Mechanical Characteristics TYPICAL RACK LAYOUT FRONT VIEW 4U VENTILATOR & CONTR. 1U HEAT EXCHANGER max 6U LV PS max 6U LV PS 1U SIDE VIEW 300 mm SPACE FOR CABLES 600 mm LV PS LV PS HEAT EXCHANGER LV PS 4 Spec: Monitoring & Control Two options: a) Via CANbus b) Via Ethernet Ethernet PC OPC Server PCI “Kvaser” Provided by manufacturer PC OPC Server CANbus LOCAL PANEL LOCAL PANEL LVPS 1 External interlock LVPS 1 5 Spec: MONITORING AND CONTROL FUNCTIONS MON = MONITOR ESS = ESSENTIAL FUNCTIONS/PARAM CON = CONTROL DES = DESIRED VOLTAGES MON CON Individual channels ESS CURRENTS MON 12 bit resolution ESS RAMPING RATE MON CON Individual channels DES TEMPERATURE MON Sensor above power circuits ESS OVER-CURRENT TRIP OFF MON CON VALUE Individual channels ESS FAN STATUS MON Out of limit warning ESS OVER-VOLTAGE STATUS MON Individual channels DES OVER-CURRENT STATUS MON Individual channels ESS OVER-TEMP MON Out of limit warning ESS 6 Spec: MONITORING AND CONTROL FUNCTIONS MON = MONITOR ESS = ESSENTIAL FUNCTIONS/PARAM CON = CONTROL DES = DESIRED DC TRIP OFF MON RESET DC TRIP OFF Individual channels Global DC power ESS ESS CON Individual channels Global DC power ESS ESS DC POWER ON/OFF MON CON Individual channels Global DC power ESS ESS AC POWER ON/OFF MON CON using external power DES PS HEALTH MON Summary status DES LOCAL CONTROL MON Remote control locked out ESS PS RESET CON System reset (tbs)?? ESS 7 Spec: MONITORING AND CONTROL FUNCTIONS GROUP MANAGEMENT: THE POSSIBILITY TO CONFIGURE AND PERFORM FUNCTIONS ON GROUPS OF CHANNELS WITHIN A CRATE FUNCTIONS/PARAM MON = MONITOR ESS = ESSENTIAL CON = CONTROL DES = DESIRED VOLTAGES CON Groups of channels DES DC POWER ON/OFF CON Groups of channels DES RAMPING RATE MON CON Groups of channels DES OVER-CURRENT TRIP OFF VALUE MON CON Groups of channels ESS 8 Spec: OPC SERVER General Compliance with OPC standards No effect on PS output due to failure of remote control Restart of OPC remotely Not send set points automatically at startup – read from device PS shall maintain its set points during PS power failure Genuine device and cache access Interactive list of device functions 9 Spec: OPC SERVER Maintenance To support future versions of Windows and OPC standards To support future versions of PS firmware Configuration Allow appropriate management of the fieldbus Human readable configuration file (such as XML) Obtain actual configuration by scanning Setting of ranges for analog values and setting of the dead band 10 Spec: OPC SERVER Performance Change in Device to OPC: max max Device cache to OPC client: max Write from OPC to device: max Interlock to start ramp-down: max 10 sec at full bus load 1 sec for a single PS 3 sec for all parameters 1 sec 5 ms 11 Spec: cooling, etc. Cooling Environment Total dose: 10 mGy up to 200 Gauss Fluency: 109 n/cm2 Halogen free material Safety regulations Radiation Magnetic Field Construction Use of standard ventilators not possible due to stray magnetic fields Water cooling recommended Installed in rack with assured vertical airflow removing max 3kW/rack CE certification Reliability MTBF > 90 000 hours (excluding ventilators) 12 Spec: QA, documentation Quality assurance Production tests Functional tests Load tests Documentation User’s guide Reference manual Test and calibration reports 13 Target devices Wiener PL500 F8: PL500 F12: Marathon: product exists; water cooling; some control limitations prototype exists; might not be commercialized Prototype exists; should replace F8, F12 Caen SY1527: Easy Sasy product exist; no water cooling prototype exist; B-field tolerant prototype exist; high B-field tolerant Arem Pro Device H/W prototype exists; no water cooling 14 LVPS overview I Detector PS chan [no] SPD 20 or 240 SDD 216 SSD 448 or Target device Wiener PL500 F8 Module Crates When [A] [no] required 50 4 9 4 Arem Pro 6 Caen SY1527 or Caen Easy Common purchase 4Q05 Yes? 6 4Q05 ? 3.6 5 ? ? 4Q05 yes Arem Pro TPC 72 Wiener PL500 F8 115 22 or 72 Wiener Marathon 50 22 TRD 180 Wiener PL500 F8 115 45 3Q05 yes TOF ? Caen Sasy ? ? ? no HMPID 100 Wiener PL500 F8 30 14 3Q05 Yes, commit before 05 15 LVPS overview II Detector PS chan [no] Target device Module Crates When [A] [no] required Common purchase PHOS & CPV 11 Wiener PL500 F8 20 115 5 ? yes FMD ? ? ? ? ? ? T0 4 Caen Easy ? 1 ? yes V0 ? Caen Easy ? 1 ? ? PMD ? Wiener PL500 F8 ? ? ? yes ZDC ? ? ? ? ? ? MTK 364 Wiener PL500 F12 25 31 2Q05 yes MTG 16 Wiener PL500 F8 115 2 4Q04 yes TOTAL 1461 + ? 3 manufacturers 7 types 3.6 250 136 + ? 4Q044Q05 9 yes; 5 ?; 1 no 16 Procurement Individual: Common: TOF Handled by the detector – non-CERN purchasing Recommended to use the common technical specification – at least for the remote control SPD, TPC, TRD, HMPID PMD, PHOS & CPV, T0, MTK, MTG Handled by ESS group – CERN tendering No FI committee required Market Survey out end June Tender out early September Close mid October Small quantities mid November to end 04 Not decided or no answer: SDD, SSD, FMD, V0, ZDC 17 Action summary Send out market survey PH/ESS group by end June 04 Finalize the requirements Electrical characteristics, granularity of control (size and amount of modules), control functions: detectors before mid August 04 Radiation policy: TC mid August 04 Issue the tender Merge ALICE requirements with other experiments and send out tender TC + ESS group early September 18