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ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 1 Updating on the HV control systems in ALICE The DELPHI HV,

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Presentation on theme: "ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 1 Updating on the HV control systems in ALICE The DELPHI HV,"— Presentation transcript:

1 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 1 Updating on the HV control systems in ALICE The DELPHI HV, the ALICE TPC HV and the HMPID HV state diagrams: similarities and differences; The HMPID HV: preliminary scheme of the Alarm and the Error handling; Comparison among the state diagrams of a generic DELPHI subdetector, the ALICE TPC and the HMPID control systems; Conclusions The DELPHI HV, the ALICE TPC HV and the HMPID HV state diagrams: similarities and differences; The HMPID HV: preliminary scheme of the Alarm and the Error handling; Comparison among the state diagrams of a generic DELPHI subdetector, the ALICE TPC and the HMPID control systems; Conclusions

2 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 2 NOT indicated are trips during ramping STATE DIAGRAM of a DELPHI HV sub- system with intermediate HV values Kindly provided by A. Augustinus

3 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 3 OFF ON RAMPING_UPRAMPING_DOWN “Configured” CONFIGURING Crate(s) powered on and running, all channels “OFF”, no values loaded to hardware Crate(s) powered on, all channels on operational “On” values Read values from database and write them to hardware Channels ramping between “Off” value and operational (“On”) value (and v.v.) Crate(s) powered on, all channels “OFF”, operational values loaded to hardware State diagram for the HV of one DEPLPHI subdetector with NO intermediate HV values. The C onfiguring state is also shown. Kindly provided by A. Augustinus

4 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 4 ALICE TPC Prototype II FSM Software Expert TPC module anode HV edge LV module analog digital Cool sensor Gas sensor DCS Ch PVSS SMI++ PVSS fanoutwithin PVSS Shift Kindly provided by U.Frankenfeld

5 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 5 HV The TPC HV state diagram HV CONFIGURED HW_READY INTERMEDIATE CONFIG ON ERROR GO_INTERMEDIATE SWITCH_OFF CONFIGURE SWITCH_OFF OFF START STOP NOT_READY STOP START_HWSTOP_HW RECOVER RAMPING_DOWN CONFIG STOP_HW CONFIGURE SET_CONFIGURATION CONFIGURE SET_CONFIGURATION CONFIGURE SET_CONFIGURATION START_HW RAMPING_UP RAMPING_DOWNRAMPING_UP START Kindly provided by U.Frankenfeld At least one channel tripped at voltages above INTERMEDIATE voltage GO_INTERMEDIATE

6 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 6 The HMPID CS Architecture HMPID DCS HVLVLCS HVMod 1 HVPS1 CAEN SY1527 HV PS PLC S300 LCSMod 1 LCSMain PLC S300 GASCOOL Cooling System Gas System HMPID DCS HVPS1 PLC S300 SMI Control Unit SMI Device Unit Hardware Device Working in progress Advanced Status Phis. Par LVSctr 1 LVPS1 WIENER PL500F8 LV PS LVPS1 External to the HMPID CS

7 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 7 THE STATE DIAGRAM of the HV for one HMPID module Go_Standby OFF CONFIGURE Repair Acknowledge Reset All channels off After the download of recipes all channels at Standby Go_OFF Go_ON Reset STANDBY RAMPING_DOWN RAMPING_UP ERROR_REPAIR X% of channels on Go_RampDW Reset ON max? At least one channel tripped #trips < 4 #trips ≥ 4 Upon Acknowledge At least one channel ramping down All channels at Standby At least one channel ramping up Trips? At least one ch tripped Yes From any state upon Reset CH Trip? At least one channel tripped #trips < 4

8 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 8 THE HMPID HV Subsystem ( 7 Modules) STATE DIAGRAM Go_Standby OFF CONFIGURE Repair Acknowledge All channels off With PS ON After the download of recipes all Modules are at Standby Go_OFF Go_ON Reset STANDBY RAMPING_DOWN RAMPING_UP ERROR ON At least one Module Is ramping down All Modules in Standby At least one Module is ramping up From any state upon Reset Alarm conditions pushing the system in ERROR: External Interlock (Gas, SS…) Sy1527 fan tray failure Sy1527 AC unit failure Uncalibrated board In this state all the HMPID HV channels are switched OFF. Go_RampDW Reset Alarm conditions

9 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 9 The HMPID HV: preliminary scheme of the Alarm and Error handling

10 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 10 Module HV: ERROR_REPAIR source 1 Go_Standby OFF CONFIGURE Repair Acknowledge Reset All channels off After the download of recipes all channels at Standby Go_OFF Go_ON Reset STANDBY RAMPING_DOWN RAMPING_UP ERROR_REPAIR X% of channels on Go_RampDW Reset ON max? At least one channel tripped #trips < 4 #trips ≥ 4 Upon Acknowledge At least one channel ramping down All channels at Standby At least one channel ramping up Trips? At least one ch tripped Yes From any state upon Reset CH Trip? At least one channel tripped #trips < 4

11 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 11 Module HV: ERROR_REPAIR source 2 Go_Standby OFF CONFIGURE Repair Acknowledge Reset All channels off After the download of recipes all channels at Standby Go_OFF Go_ON Reset STANDBY RAMPING_DOWN RAMPING_UP ERROR_REPAIR X% of channels on Go_RampDW Reset ON max? At least one channel tripped #trips < 4 #trips ≥ 4 Upon Acknowledge At least one channel ramping down All channels at Standby At least one channel ramping up Trips? At least one ch tripped Yes From any state upon Reset CH Trip? At least one channel tripped #trips < 4

12 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 12 Module HV: ERROR_REPAIR source 3 Go_Standby OFF CONFIGURE Repair Acknowledge Reset All channels off After the download of recipes all channels at Standby Go_OFF Go_ON Reset STANDBY RAMPING_DOWN RAMPING_UP ERROR_REPAIR X% of channels on Go_RampDW Reset ON max? At least one channel tripped #trips < 4 #trips ≥ 4 Upon Acknowledge At least one channel ramping down All channels at Standby At least one channel ramping up Trips? At least one ch tripped Yes From any state upon Reset CH Trip? At least one channel tripped #trips < 4

13 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 13 ERROR_REPAIR Panels

14 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 14 Summary of the HMPID HV Alarm and Error HANDLING. ? ERROR_REPAIR SY1527 Sub-system ERRORs HMPID DCS Module HV CS M5 M6 GAS LV LCS HV LV LCSHV LV LCSHV LV LCSHV LV LCSHV LV LCSHV LV LCS HV LV LCS M1 M7 M4M5 M2M3 M6 S1S6 G1 The ERROR_REPAIR state is active if one or all the module HV channels (sectors) are in trip.This state is not propagated to the HV subsystem but just a color coded information is sent to the HV subsystem and HMPID DCS level HMPID ERROR active if the HV ERROR is active ERROR To the ALICE ERROR Handling M7 ERROR HV sub-system CS HV ERROR is active if: - EXT INTERLOCK; -SY1527 fan failure; - un_calibrated board. Any of these conditions will result in the HMPID HV=OFF. M7 M4 M1M3 To the HMPID DCS ERROR Handling

15 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 15 STATE DIAGRAMS STANDARDIZATION ? ECS TRD DCS HMPID DCS TPC DCS Trigger TRD TR HMPID TRTPC TR DAQ TRD HMPIDTPC HV LV Standard State Diagrams ALICE DCS Sub-detector oriented State Diagrams From the top level of a subdetector CS, the subsystem state diagrams(SD) and commands are transparent then the SD standardization is not mandatory. In turn, in order to operate simultaneously all the sub-detectors and easily calculate the ALICE DCS logical state, then it is mandatory to standardize th e sub-detector DCS state diagrams. YES NO

16 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 16 Comparison among the state diagrams of a generic DELPHI subdetector, the ALICE TPC and the HMPID control systems.

17 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 17 Main states and commands of one of DELPHI’s sub-detector

18 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 18 TPC DCS state diagram TPC Kindly provided by U. Frankenfeld

19 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 19 HMPID DCS State Diagram OFF ERROR READY STAND BY GO_STANDBY (ConfigName) GO_READY GO_RAMPDW All Sub System are Configured ! AllDCSSub Systems are READY ! All Sub System are in STANDBY ! The GO_STANDBY command provides to the control system the “Name” of the configuration to be downloaded. During theCount Down to READYState, in order to operate safely the detector, the READY commands to all the sub systems are dispatched according to a defined sequence. This synchronization is ensured by the DCS control program. GO_OFF CONFIG Count Down to READY Count Down to STANDBY Alarm Conditions : Not yet completely specified RESET FROM ANY STATE RESET NOT_READY The NOT_READY state is not yet defined

20 ALICE DCS, Heidelberg 8 Sept. 2003 G. De Cataldo, CERN CH and INFN Bari;A. Franco INFN Bari 20 Conclusions 1.From the top level of a subdetector CS, the HV,LV,..etc state diagrams(SD) and commands are transparent then the SD standardization is not mandatory; 2.In turn, in order to allow the ALICE DCS to simultaneously operate the sub-detectors and easily calculate the DCS global logical state, then it is mandatory to standardize the state diagrams and commands for each sub-detector CS; 3.To prevent the sub-detector damaging during some LHC operation phases (very high event rate) then as done in the DELPHI DCS, also in ALICE some commands related to the LHC status (at present nobody knows!) has to be implemented: Prepare_for_injection, Prepare_for_shutdown……, 4.In order to start to prepare the ALICE DCS state diagram, each subdetector is kindly requested to provide the related DCS operating state diagram and commands! A combination of all these diagrams with the LHC states (and some other ingredients!) will provide the STANDARD STATE DIAGRAM FOR ALL THE SUBDETECTORS! 1.From the top level of a subdetector CS, the HV,LV,..etc state diagrams(SD) and commands are transparent then the SD standardization is not mandatory; 2.In turn, in order to allow the ALICE DCS to simultaneously operate the sub-detectors and easily calculate the DCS global logical state, then it is mandatory to standardize the state diagrams and commands for each sub-detector CS; 3.To prevent the sub-detector damaging during some LHC operation phases (very high event rate) then as done in the DELPHI DCS, also in ALICE some commands related to the LHC status (at present nobody knows!) has to be implemented: Prepare_for_injection, Prepare_for_shutdown……, 4.In order to start to prepare the ALICE DCS state diagram, each subdetector is kindly requested to provide the related DCS operating state diagram and commands! A combination of all these diagrams with the LHC states (and some other ingredients!) will provide the STANDARD STATE DIAGRAM FOR ALL THE SUBDETECTORS!

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