1. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005 Magnet Power Supplies K. Luchini Overview Hardware Software Documentation Schedule

2. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005 Overview Machine sectors with Magnets Existing magnets LINAC Most: unchanged. Controlled by SLC Control System micros Few :swap out ps and ps controller TBD: sect 21-29,30 QE’s bulks ps but lcls has different current req BSY – unchanged (w/one addition) New Magnets Injector LTU Most refurbished FFTB magnets with new ps and ps controller. All correctors will all have 120Hz fast feedback control BSY – One new magnet, new ps and ps controller Special double duty magnets LINAC magnets in sector 23, sector 29 and sector 30. Total: New 170 + Existing 282 = 452

3. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005 Hardware Test Stand PSI 24V/10A PS with PS Controller PSI VisualECS PC Software Load PS Controller Evaluation Long-term stability with various current values Analyze the PS operation sand current ripple around 0A Measure the combined bandwidth of the PS + controller w/resistive and inductive load Current ripple for various current values Output voltage ripple for various output current values Interlock action PS operations and stability w/operating temperature up to 40 deg C. Preliminary Results Two stability tests with the PSI controller connect to a corrector ps in two cases of current feedback By shunt system that came with the unit (20050307) By precision Danfysik DCCT (20050330)

7. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005 VisualECS Diagnostic Display

8. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005

9. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005

10. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005 Software Test Stand PowerPC Processor vme64X crate SBC IP Carrier – VIPC664 PSI IP-Pac – Single port controls 2 ps controllers PSI TM Module - 8 channel FO (2 ports/channel) PSI PS Controller Chassis PSI PS Controller Software EPICS SW with database. Upgraded to EPICS OSI independent R3.14.6 Troubleshooting Reverted to known working version with vxWorks OS Determined problem was faulty ps digital controller card PC Diagnostic Software – PSI Visual ECS version 2.03 Runs from controller chassis front panel service port. EDM displays downloaded from Diamond

11. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005 Documentation Web page (under construction) http://www.slac.stanford.edu/grp/lcls/controls/global/subsystem/mgnt http://www.slac.stanford.edu/grp/lcls/controls/global/subsystem/mgnt Engineering Specification Document (ESD) SLC-Aware IOC SLC Magnet Functional Requirement Document SLC Magnet Design Document EPICS Magnet Functional Requirements document EPICS Design Document Task List – (under construction)

12. K. Luchini LCLS Lehman Review - Controls Breakout, SLACluchini@slac.stanford.edu May 11th 2005 Schedule Simple communication between Alpha & SLC IOC Aware Magnet Hndlr (June) Estimate PS Evaluation Complete (May) Ongoing work Calculate AC Power requirements for buildings Calculate # of new ps Calculate ps current required within 10%. Improve upon original BOE Determine optimum PSI ps chassis configuration and layout Rack profiles and location of free standing ps Cabling and cooling requirements List and answer any open questions Weekly Magnet Meetings with physicists, power conversion engineers, hw engineers and sw controls LTU/Dump/DSY – Underway LINAC – Underway Injector Complete list of ps, ps controllers, and VME modules for Procurement (Summer 2005)