1 Low Voltage Power Supply Specification DCS Workshop 8 Sept 03 L.Jirden.

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Presentation transcript:

1 Low Voltage Power Supply Specification DCS Workshop 8 Sept 03 L.Jirden

2 Electrical Characteristics u AC Input u 230 VAC +- 10%, 50 HZ +- 6%, PF >0.9 u DC Output u Modular design LV PS 2 – 7 V, 125 A 8 outputs/crate LV PS 2 – 7 V, 25 A 12 outputs/crate 24h stability < 5mV or 0.1% 6m stability < 20mV or 0.5% Noise & ripple < 10mV p to p

3 Mechanical Characteristics TYPICAL RACK LAYOUT 4U 1U 4U 1U 4U VENTILATOR & CONTR. HEAT EXCHANGER LV PS HEAT EXCHANGER LV PS FRONT VIEW LV PS SPACE FOR CABLES 600 mm300 mm SIDE VIEW

4 Monitoring & Control LVPS 1 LOCAL PANEL PVSS OPC CL OPC SRV PCI “Kvaser” LVPS 16 LOCAL PANEL LVPS 1 LOCAL PANEL ethernet CANbus Min 4 per PC Min 16 per bus Provided by manufacturer External interlock

5 POWER ON/OFF SCHEME 1 DC POWER MODULES CAN I/F AC/DC CANbus HAZEMEYER LV POWER SUPPLY RACK POWER DISTRIBUTION STRIP LOCAL SWITCH 220V AC

6 POWER ON/OFF SCHEME 2 DC POWER MODULES CAN I/F AC/DC CANbus HAZEMEYER LV POWER SUPPLY RACK POWER DISTRIBUTION STRIP 220V AC POWER

7 POWER ON/OFF SCHEME 3 DC POWER MODULES CAN I/F AC/DC CANbus HAZEMEYER LV POWER SUPPLY RACK POWER DISTRIBUTION STRIP LOCAL SWITCH 220V AC REMOTE CONTROL

8 REMOTE MONITORING AND CONTROL FUNCTIONS VOLTAGESMONCONIndividual channelsESS CURRENTSMON12 bit resolutionESS RAMPING RATEMONCONIndividual channelsDES TEMPERATUREMONSensor above power circuitsESS OVER-CURRENT TRIP OFF VALUE MONCONIndividual channelsESS FAN STATUSMONOut of limit warningESS OVER-VOLTAGEMONIndividual channelsDES OVER-CURRENTMONIndividual channelsESS OVER-TEMPMONOut of limit warningESS MON = MONITOR CON = CONTROL ESS = ESSENTIAL DES = DESIRED FUNCTIONS/PARAM

9 REMOTE MONITORING AND CONTROL FUNCTIONS DC TRIP OFFMONIndividual channels Global DC power ESS RESET DC TRIP OFFCONIndividual channels Global DC power ESS DC POWER ON/OFFMONCONIndividual channels Global DC power ESS AC POWER ON/OFFMONCONusing external power??DES PS HEALTHMONSummary statusDES LOCAL CONTROLMONRemote control locked outESS PS RESETCONSystem reset (tbs)??ESS MON = MONITOR CON = CONTROL ESS = ESSENTIAL DES = DESIRED FUNCTIONS/PARAM

10 GROUP MANAGEMENT VOLTAGESCONGroups of channels (perf ??)ESS DC POWER ON/OFFCONGroups of channelsESS RAMPING RATEMONCONGroups of channelsDES OVER-CURRENT TRIP OFF VALUE MONCONGroups of channelsDES MON = MONITOR CON = CONTROL ESS = ESSENTIAL DES = DESIRED FUNCTIONS/PARAM THE POSSIBILITY TO CONFIGURE AND PERFORM FUNCTIONS ON GROUPS OF CHANNELS WITHIN A CRATE

11 OPC SERVER u General u Compliance with OPC standards u No effect on PS output due to failure of remote control u Restart of OPC remotely u Not send set points automatically at startup – read from device u PS shall maintain its set points during PS power failure? u Genuine device and cache access u Interactive list of device functions

12 OPC SERVER u Maintenance u To support future versions of Windows and OPC standards u To support future versions of PS firmware u Configuration u Allow appropriate management of the fieldbus u Human readable configuration file (such as XML) u Obtain actual configuration by scanning u Setting of ranges for analog values and setting of the dead band

13 OPC SERVER u Performance u Change in Device to OPC:max 10 sec at full bus load max 1 sec for a single PS u Device cache to OPC client:max 3 sec for all parameters u Write from OPC to device:max 1 sec u Interlock to start ramp-down:max 5 ms

14 u Cooling u Forced air u Environment u Radiation< 0.01 Gy< 10 8 n/cm 2 u Magnetic Field< 80 Gauss u Construction u Halogen free material u Safety regulations u CE certification u Reliability u MTBF > hours

15 u Quality assurance u Production tests u Functional tests u Load tests u Documentation u User’s guide u Reference manual u Test and calibration reports

16 Questions u Who wishes to use the spec? u For Wiener, CAEN, Arem Pro, other? u Individual or common purchasing? u When? u Adapt spec for HV supplies as well?