ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM UNICOS implementation in ISOLDE Sebastien Blanchard TE/VSC Interlocks, Controls and Monitoring Section 1 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM Overview NS -ISOLDE (On-Line Isotope Mass Separator) is a CERN facility dedicated to the production of radioactive ion beams for nuclear and atomic physics. -ISOLDE Vacuum controls drive: - Vacuum Pumps, Gauges, Valves (up to five stages of pumping) - Exhaust System (volatile radioactive elements present in the exhaust gases) - Venting System - Automatic venting and re-pumping (Several automatic intervention per month) -ISOLDE Vacuum controls are based on - Siemens S7 PLCs - WinCC OA (PVSS) SCADA applications. 2 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM ISOLDE Facilities NS front-end post accelerator separators 50 meters Vacuum Control System: 2010: Renovation of ISOLDE Front-Ends, Separators and Experimental hall 2011: Renovation of REX-ISOLDE post accelerator : Controls for the new HIE-ISOLDE line ISOLDE + REX: 46 Beam Vacuum Sectors ~ 100 Pumps Vacuum Pressures Specifications: High Vacuum (10 -7 mbar) Except EBIS : Ultra High Vacuum ( mbar) 3 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM ISOLDE Typical Vacuum Sector NS 4 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM PROCESSES CONTROL SCHEMA NS 5 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM ISOLDE Vacuum Controls Architecture NS Profibus Active Gauges 6 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM Hardware Interlocks NS … Complete list in the User Manual : Layout of control racks: Location of control crates: In order to reduce costs, controls crates are installed close to the vacuum devices, so the control crate location number is rather large For NEXT Vacuum Control System keeping the same HW Interlocks schema: - Direct from TPG300 Relay - Via dedicated HW Multiplexer/Interlocks Crates - Using PLC Output (Slow/Processes Interlocks) - Monitoring all the Status of HW Interlocks generated by vacuum controls (this functionnality shall be updated) 7 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM ISOLDE Hardware Architecture NS Controllers Restricted access Vacuum sectors Profibus-DP Network Controllers Located next to the vacuum equipments Advantage : Reduce Cabling Price Disadvantage: Scattered HW Controls 8 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM Software PLC/SCADA: UNICOS-CPC Framework NS Process Logic Specifications PLC Software Code UNICOS-CPC (1) Baseline Library Excel file Specifications (2) SCADA Objects Vacuum Layout Vacuum Baseline Functions Library for UNICOS-CPC (2) Grafcet Functions (2) UNICOS-CPC (1) Generator SCADA Panel Templates (2) SCADA Project PLC Project PLC Functions Templates (2) UNICOS-CPC (1) SCADA Framework PLC Based Code (UNICOS- CPC) Compilation (1) UNICOS-CPC (UNified Industrial COntrol System) Framework developed by CERN Industrial Controls&Engineering Group to produce easily full control and monitoring applications (2) PLC functions, Grafcet functions and “vacuum” library were created especially for the vacuum system of ISOLDE. 9 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM PVSS Main Panel NS Monitoring: With 1 Sight you can check that Vacuum Status is OK ! 10 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM PVSS Panel: Steppers NS 11 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM PVSS Panel: Diagnostics NS Start/Open Interlock (Open disable): Stop/Close Interlock (Full interlock): 12 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM PVSS Panel: Exhaust System NS Volatile radioactive elements present in the exhaust gases : All the pumping gases are stored From backing pumps stage 13 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM Operation Feedback: Issues during automatic restart of the Vacuum System NS After system interrupt (Ex: Power Cut) the System automatically restarts. Reminder: Due to the possible presence of volatile radioactive elements into beam sectors, the pumping gas is stored into tanks.  The system has a lot of timeout to avoid filling exhaust tanks with gas pumped coming from leaks. These timeouts active Full Stop alarms (need to be acknowledge to restart) and Temporary Stop alarms. These Full Stops cause automatic restart interrupt. Updated in 2011 and Timeouts are parameterized and fit to each sector characteristics 2.Some Full Stops are re-qualified to Temporary Stops For new development A. Minimized Full Stops and Alarms numbers 14 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM Operation Feedback: Issues with complex processes NS Some processes had complex steppers and logics  cause some interrupts Updated in Process has been simplified and the seldom operation is now manual Examples of updates: - Penning gauges automatic switch Off by PLC only in case of Venting Request -Restart and Regeneration of cryo pumps have been simplified -... For new deployments A. Keep processes and steppers as simple as possible B. Keep manual the seldom task 15 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM New Project HIE ISOLDE NS Cryo RF Modules 16 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM New Project HIE ISOLDE Vacuum Controls Cryo Module layout NS x 6 Cryo Module Sectors 17 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM New Project HIE ISOLDE Vacuum Controls Architecture NS 18 of 19

ISOLDE Vacuum Controls (CERN-GSI WS), S. Blanchard TE-VSC-ICM New Project HIE ISOLDE Vacuum Controls Architecture NS Profibus-DP Network Profibus-DP Network for Gauges Still don’t know if beam vacuum sectors will be completely or partially restricted areas, so 2 locations for vacuum control crates is foreseen… not so close from vacuum devices! Cryo Module Sector x 6 Signal Cables Transfert Lines Experiments Sig Cables 19 of 19