Paper |
Title |
Other Keywords |
Page |
MOPEA044 |
Maintenance Experience for Personnel Safety System at SSRF |
controls, radiation, synchrotron, synchrotron-radiation |
175 |
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- J.J. Lu, P. Fei, G. Wang, X. Xia, J.Q. Xu, X.J. Xu
SINAP, Shanghai, People's Republic of China
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To improve reliability and reduce faults of Personal Safety System (PSS) at Shanghai Synchrotron Radiation Facility (SSRF), two types of system maintenances were carried out since SSRF completion in 2009. The maintenances include maintenance during machine operation and that during shutdown period. The failures of the PSS are summarized for last 3 years operation, and the causes of these failures are analyzed. Main failures were occurred in the access control system and UPS power-supply mode during last 3 years operation. To treat these failures, detail maintenance plan and system upgrading schemes were carried out. After the maintenance and system upgrading, the numbers of beam shutdown which caused directly by the PSS failures are obviously reduced. It was 4 times beam shutdown in 2009 and 0 in 2011.
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WEPME032 |
Development Status of SINAP Timing System |
linac, status, controls, background |
2992 |
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- M. Liu, D.K. Liu, C.X. Yin, L.Y. Zhao
SINAP, Shanghai, People's Republic of China
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After successful implementation of SINAP timing solution at Pohang Light Source in 2011, the development of SINAP timing system version-II was finished by the end of 2012. The hardware of version-II is based on Virtex-6 FPGA chip, and bidirectional event frame transfer is realized in a 2.5Gbps fiber network. In event frame, data transfer functionality substitutes for distributed bus. The structure of timing system is also modified, where a new versatile EVO could be configured as EVG, FANOUT and EVR with optical outputs. Besides standard VME modules, we designed PLC-EVR as well, which is compatible with Yokogawa F3RP61 series. Based on brand new hardware architecture, the jitter performance of SINAP timing system version-II is improved remarkably.
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THPEA007 |
Upgrade of Safety Interlock System of e+/e− Linac for SuperKEKB Project |
linac, gun, laser, status |
3161 |
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- A. Shirakawa, H. Honma, Y. Ogawa
KEK, Ibaraki, Japan
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The upgrade of e+/e− Injector Linac is going on for SuperKEKB project. The personal interlock system of the Linac has been upgrading several times according to the upgrade phase. One of the biggest changes has been made when the Linac was divided into two areas: upstream and downstream linacs, which allows us to work out the upgrade even during injection to Photon Factories at lower energies using the downstream linac. Most of the interlock system devices were duplicated to start the 'half' accelerator operation. Another remarkable update is to adopt an RF-Gun as a new electron source. We programmed a specific strong logic for the RF-Gun operation. These upgrades will be reported with the introduction of the whole interlock system.
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THPEA011 |
WPF Based EPICS Server and its Application in CSNS |
EPICS, controls, LLRF, linac |
3170 |
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- Y.L. Zhang, G. Lei
IHEP, Beijing, People's Republic of China
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The control system of China Spallation Neutron Source(CSNS) is under construction based on EPICS. The Linac low level RF(LLRF) local control program running on a local control PC uses Windows Presentation Foundation( WPF) as its development tool and uses the C# codes to implement the functionality. The Linac LLRF control system is non-EPICS, so the Linac LLRF local variables can’t be accessed directly from EPICS. Therefore we need to port the Linac LLRF local control system to EPICS. This paper presents the WPF base EPICS server and its application in CSNS.
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THPEA016 |
EPICS Driver for Phoenix Contact Redundant PLC |
EPICS, controls, status |
3176 |
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- G. Liu, C. Li, J.Y. Li, J.G. Wang, W. Xu, K. Xuan
USTC/NSRL, Hefei, Anhui, People's Republic of China
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The RFC 460R PLC from Phoenix Contact is a high-performance controller that has been extended to offer redundancy functionality. This redundancy functionality is vital for uninterrupted processes in complex systems and large plants. In order to integrate this product into EPICS environment, an EPICS Driver is developed. This driver is intended to connect a pair of RFC 460R redundant PLCs via TCP/IP to an EPICS IOC. In this paper, the communication mechanism, software implementation and the test results of a prototype system will be described.
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THPEA024 |
The Control System of the SDUV-FEL Test Facility |
controls, FEL, EPICS, power-supply |
3195 |
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- J.G. Ding, S.M. Hu, G.Y. Jiang, H.F. Miao, H. Zhao, H.J. Zhu
SINAP, Shanghai, People's Republic of China
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At SINAP, the Shanghai deep ultraviolet FEL test facility (SDUV FEL) was integrated to test the FEL key technologies and principles. The facility was constructed based on the existed SINAP 100MeV LINAC with modifications of cathode gun replacement and magnet compressor segment increment, extension of the undulator section, and the seeded laser system. The control system of the facility has been developed which upgraded and extended from the existed LINAC control system. The system was integrated based on the EPICS toolkit, consists of several subsystems of magnet power supply control, timing, vacuum monitor, RF control, undulator gap adjustment, and machine protection system. In this paper, the SDUV FEL control system is introduced. Solutions of equipment control, hardware and software implementations, and system integrations are described in details.
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THPEA028 |
Embedded EPICS Controller in Inserting Devices of SSRF |
EPICS, controls, insertion, insertion-device |
3204 |
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- G.Y. Jiang
SSRF, Shanghai, People's Republic of China
- G.H. Chen
SINAP, Shanghai, People's Republic of China
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SSRF is the first homemade third-generation of synchrotron radiation light source in China. In the first stage of SSRF, 7 beamlines have been built. Among of them, 5 beamlines have used inserting devices (IDs) including both of wigglers and undulators. To support stable and long life beam, the control part of these IDs must focus on high stability and high precision. Thus, Simens PLC, which has been widely used in industrial control fields, was used as local device controllers to control the motors. About upper layer control, we adopted a kind of embedded EPICS controller to implement the control of correction coil power supplies and PLC. This embedded EPICS controller is based on a commercial Ethernet/Serial converter which running MontaVista linux as its operation system. Beyond this, EPICS IOC Core program and several kinds of device control drivers were integrated to it. After several months using, the whole system works stably. Details of the necessary integration work and operation performance will be discussed in this paper.
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THPFI070 |
Event Based System to Manage the Maintenance of Taiwan Photon Source |
status, controls, photon, synchrotron |
3460 |
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- C.W. Hsu, C.S. Chen, C.Y. Liu, Z.-D. Tsai
NSRRC, Hsinchu, Taiwan
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This paper presents a model of event based maintenance management system to provide commission condition of utility facility. The system adopts cloud servers with structured query language (SQL) database to deal with all utility facility information. The system collects all event condition, including scheduled maintenance, troubleshooting, alert information and equipment specifications. The user can easily access all the facility information in mobile devices by scanning the quick response (QR) tag. The system can increase system reliability, decrease maintenance cost, minimize not programmed shutdowns and enhance system performance. Besides, the system can also provide enough information to schedule maintenance order by user or preventive and optimize energy usage.
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