1. Isabelle Laugier, AT/VAC/ICM Section May 6 th 2008 LHC Vacuum Control system

2. Isabelle Laugier, AT/VAC May 6th 2008 Summary Architecture SPS and Transfer lines LHC Main functionalities Interlocks to cryogenic Demonstration Conclusion

3. Isabelle Laugier, AT/VAC May 6 th 2008 Low level architecture

4. Isabelle Laugier, AT/VAC May 6 th 2008 High level architecture

5. Isabelle Laugier, AT/VAC May 6 th 2008 Main Vacuum Component Pumps Ion pump (VPI) from 10-6 mbar to 10-9 mbar (only “warm” sector) Mobile pumping group (VPGM) from 1000 mbar to 10-9 mbar Neg coating from 10-9 mbar after activation (only “warm” sector) Gauges Piezzo gauge (VGM) from 1000 mbar to 1 mbar (only Cryo vacuum) Pirani gauge ( VGR) from 1000 mbar to 10-4 mbar Penning gauge (VGP) from 10-4 mbar to 10-11 mbar Ion gauge (VGI) from 10-7 mbar to 10-12 mbar (only “warm” sector)

6. Isabelle Laugier, AT/VAC May 6 th 2008 SPS and Transfer Lines Contents: SPS, North area and CNGS ion pumps, Piranni/Penning gauges and sectors valves TI2 and TI8 ion pumps and sectors valves

7. Isabelle Laugier, AT/VAC May 6 th 2008 LHC Contents: The QRL and Cryo Vacuum systems with triplet of gauges and fixed pumping groups The 2 beam vacuum systems with Pirani/Penning gauges, ion gauges, ion pumps, mobil equipments (pumping groups or bake out racks) and sector valves The 2 dump lines with Pirani/Pening gauges, ion pumps and sector valves The 4 experimental areas with vacuum equipment and Gas Injection System. In LHCb, Velo is specific.

8. LHC Normal situation Isabelle Laugier, AT/VAC May 6 th 2008

9. Main functionalities On the main view: State of all sector valves and for LHC, interlocks for Cryo State of our PLCs History of actions Actions menu to open/close sector valves Access to other views

10. Isabelle Laugier, AT/VAC May 6 th 2008 Pressure Profile Two types: All the machine or part of the machine Allow the select which type of equipment ( gauges or pumps)

11. All machine Profile Isabelle Laugier, AT/VAC May 6 th 2008

12. Synoptic Layout of a part of the machine with state of equipment. (Here LSS6 with dump lines)

13. Isabelle Laugier, AT/VAC May 6 th 2008 Detail window For each type of equipment

14. Isabelle Laugier, AT/VAC May 6 th 2008 Pressure and State History

15. Isabelle Laugier, AT/VAC May 6 th 2008 Global actions To open/close valves To start/stop ion pumps & gauges

16. Interlocks to Cryo Hardware interlocks Two types: 0.1 mbar, given by one or several VGR 500 mbar, given by one or several VGM Delay of 30s between gauge OFF and interlock set Possibility to send an alarm to CCC Isabelle Laugier, AT/VAC May 6 th 2008

17. Icons

18. Isabelle Laugier, AT/VAC May 6 th 2008 Interface to control system Publishing data to LHC Logging Database to be used by Timber (only for QRL/Cryo for the moment, requirement for beam vacuum on going) Will send alarms to Laser, waiting for LHC categories Publication of interlocks and gauges pressure to CMW and DIP Sector valves chain is part of BIC system Coming soon: usage of Diamon for our PLCs

19. Isabelle Laugier, AT/VAC May 6 th 2008 Documentation Help on line available directly from the application; a direct link from each window Software user manual document available in EDMS number 904272

20. Vacuum sector valves interlocks VVS will close ifVVS will open ifRemarks Linac 2&3 and LEIRTwo VPI in the same sector are bad At least one VPI is OKVPI can be restarted only if TPG is OK SPSThree VPI power supplies are bad in the same sector. All sextant will close. All Delta P are OK, taken on VGR. VVF will move only with VGP information. LHCBeam OFF AND (n-1) equipment bad n equipment OKEach VVS has n (3 or 4) equipment for Interlocks : 1or 2 VPI and 2 VGP. Isabelle Laugier, AT/VAC May 6 th 2008

21. Conclusion Available in CCC-TI (ex TCR) and CCC-SPS since 2003 Available in LEIR control room since 2005 Available in Cryo control rooms since 2006 Available in CCC-LHC for hardware commissioning Used by Vacuum group since 2002 but an important evolution has been done. Ready to implement your new requirements A Linux version will be there before the end of the year.