Low Voltage Power Supplies for ALICE TB 26.7.04 L.Jirden Recall: target devices & possible solutions Outstanding actions Target devices Wiener PL500 F8: PL500 F12: Marathon: product exists; water cooling;
Download ReportTranscript Low Voltage Power Supplies for ALICE TB 26.7.04 L.Jirden Recall: target devices & possible solutions Outstanding actions Target devices Wiener PL500 F8: PL500 F12: Marathon: product exists; water cooling;
Low Voltage Power Supplies for ALICE TB 26.7.04 L.Jirden Recall: target devices & possible solutions Outstanding actions 1 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 2 Wiener Marathon system 230 VAC PFC AC/DC CANbus CR UX CANbus Digital control 380 VDC 230 VAC PFC AC/DC B-tol: 1200 gauss Rad tolerant B-tol: 300 gauss Rad tol: ? Digital control Power modules Water cooling DC/DC Analog control Power modules B-shield 3 Caen Easy system 230 VAC B-tol: 50 gauss Rad tol: ? UX Branch controller SY1527 mainframe Power supply CR ethernet 48 VDC CANbus EASY :B-tol: 1000 gauss :Rad tol SASY : B-tol: 5000 gauss : Rad tol Digital Digital Digital control control control DC/DC DC/DC DC/DC no cooling 4 Arem Pro PS ethernet CR UX 230 VAC B-tol: ? gauss Rad tol: ? RS232 no cooling crate module module control control control AC/DC AC/DC AC/DC power power power 5 LVPS – possible solutions I Detector PS chan [no] SPD 20 or 240 SDD Target device Wiener Marathon Module Crates When [A] [no] required 50 4 Caen Easy 9 4 216 Arem Pro ?? 6 SSD 448 Caen SY1527 ?? TPC 72 TRD Common purchase 4Q05 Yes? 6 4Q05 ? 3.6 5 ? ? Wiener Marathon 50 22 4Q05 yes 180 Wiener Marathon 50? 45? 3Q05 yes TOF ? Caen Sasy ? ? ? no HMPID 100 Wiener Marathon 30? 14? 3Q05 Yes, commit before 05 6 LVPS possible solutions II Detector PS chan [no] Target device Module Crates When [A] [no] required Common purchase PHOS & CPV 11 Wiener Marathon 20 – 115? 5? ? yes FMD ? ? ? ? ? ? T0 4 Caen Easy ? 1 ? yes V0 ? Caen Easy ? 1 ? ? PMD ? Wiener Marathon ? ? ? yes ZDC ? ? ? ? ? ? MTK 364 Wiener Marathon 25? 31? 2Q05 yes MTG 16 Wiener Marathon 115? 2? 4Q04 yes TOTAL 1461 + ? 3 manufacturers 5 types 3.6 250 136 + ? 4Q044Q05 9 yes; 5 ?; 1 no 7 Outstanding actions Send out market survey: done end June Finalize ALICE requirements: before mid August Electrical characteristics: as drafted unless protests Suggested size of modules: 10A, 30A, 50A, with possibility to operate modules in parallel to at least 250A control functions: Remote voltage control: ? Grouping: yes (if not too expensive) Remote power on/off: yes (if not too expensive) Radiation policy: TC 30 August 04 Issue the tender: early September Finalize technical spec: Merge ALICE requirements with other experiments Final draft to detectors end August for ok Send out tender 8 9 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 10 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 11 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 12 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 13 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 14 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 15 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 16 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 17 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 18 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 19 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) 20 Spec: QA, documentation Quality assurance Production tests Functional tests Load tests Documentation User’s guide Reference manual Test and calibration reports 21