ICALEPCS2013 - List of Authors (Bellorini, F.)

Paper

Title

Page

Bake-out Mobile Controls for Large Vacuum Systems

119

S. Blanchard, F. Bellorini, P. Gomes, H.F. Pereira
CERN, Geneva, Switzerland
L. Kopylov, S. Merker, M.S. Mikheev
IHEP, Moscow Region, Russia

Large vacuum systems at CERN (Large Hadron Collider, the Low Energy Ion Rings…) require bake-out to achieve ultra-high vacuum specifications. The bake-out cycle is used to decrease the outgassing rate of the vacuum vessel and to activate the Non-Evaporable Getter (NEG) thin film. Bake-out control is a Proportional-Integral-Derivative (PID) regulation with complex recipes, interlocks and troubleshooting management and remote control. It is based on mobile Programmable Logic Controller (PLC) cabinets, fieldbus network and Supervisory Control and Data Acquisition (SCADA) application. CERN vacuum installations include more than 7 km of baked vessels; using mobile cabinets reduces considerably the cost of the control system. The cabinets are installed close to the vacuum vessels during the time of the bake-out cycle. Mobile cabinets can be used in all the CERN vacuum facilities. Remote control is provided by fieldbus network and SCADA application.

Poster MOPPC026 [3.088 MB]

MOPPC027

The Control System of CERN Accelerators Vacuum [LS1 Activities and New Developments]

123

P. Gomes, F. Antoniotti, F. Bellorini, S. Blanchard, J-P. Boivin, J. Gama, G. Girardot, G. Pigny, B. Rio, H. Vestergard
CERN, Geneva, Switzerland
L. Kopylov, S. Merker, M.S. Mikheev
IHEP, Moscow Region, Russia

After 3 years of operation, the LHC entered its first Long Shutdown period (LS1), in February 2013. Major consolidation and maintenance works will be performed across the whole CERN’s accelerator chain, in order to prepare the LHC to restart at higher energy, in 2015. The rest of the accelerator complex shall resume in mid-2014. We report on the recent and on-going vacuum-controls projects. Some of them are associated with the consolidations of the vacuum systems of LHC and of its injectors; others concern the complete renovation of the controls of some machines; and there are also some completely new installations. Due to the wide age-span of the existing vacuum installations, there is a mix of design philosophies and of control-equipment generations. The renovation and the novel projects offer an opportunity to improve the Quality Assurance of vacuum controls by: identifying, documenting, naming and labelling all pieces of equipment; minimising the number of equipment versions with similar functionality; homogenising the control architectures, while converging to a single software framework.

Poster MOPPC027 [67.309 MB]

Paper	Title	Page
MOPPC026	Bake-out Mobile Controls for Large Vacuum Systems	119
	S. Blanchard, F. Bellorini, P. Gomes, H.F. Pereira CERN, Geneva, Switzerland L. Kopylov, S. Merker, M.S. Mikheev IHEP, Moscow Region, Russia
	Large vacuum systems at CERN (Large Hadron Collider, the Low Energy Ion Rings…) require bake-out to achieve ultra-high vacuum specifications. The bake-out cycle is used to decrease the outgassing rate of the vacuum vessel and to activate the Non-Evaporable Getter (NEG) thin film. Bake-out control is a Proportional-Integral-Derivative (PID) regulation with complex recipes, interlocks and troubleshooting management and remote control. It is based on mobile Programmable Logic Controller (PLC) cabinets, fieldbus network and Supervisory Control and Data Acquisition (SCADA) application. CERN vacuum installations include more than 7 km of baked vessels; using mobile cabinets reduces considerably the cost of the control system. The cabinets are installed close to the vacuum vessels during the time of the bake-out cycle. Mobile cabinets can be used in all the CERN vacuum facilities. Remote control is provided by fieldbus network and SCADA application.
	Poster MOPPC026 [3.088 MB]

MOPPC027	The Control System of CERN Accelerators Vacuum [LS1 Activities and New Developments]	123
	P. Gomes, F. Antoniotti, F. Bellorini, S. Blanchard, J-P. Boivin, J. Gama, G. Girardot, G. Pigny, B. Rio, H. Vestergard CERN, Geneva, Switzerland L. Kopylov, S. Merker, M.S. Mikheev IHEP, Moscow Region, Russia
	After 3 years of operation, the LHC entered its first Long Shutdown period (LS1), in February 2013. Major consolidation and maintenance works will be performed across the whole CERN’s accelerator chain, in order to prepare the LHC to restart at higher energy, in 2015. The rest of the accelerator complex shall resume in mid-2014. We report on the recent and on-going vacuum-controls projects. Some of them are associated with the consolidations of the vacuum systems of LHC and of its injectors; others concern the complete renovation of the controls of some machines; and there are also some completely new installations. Due to the wide age-span of the existing vacuum installations, there is a mix of design philosophies and of control-equipment generations. The renovation and the novel projects offer an opportunity to improve the Quality Assurance of vacuum controls by: identifying, documenting, naming and labelling all pieces of equipment; minimising the number of equipment versions with similar functionality; homogenising the control architectures, while converging to a single software framework.
	Poster MOPPC027 [67.309 MB]