Com Cam Interfaces Travis Lange Com Cam TDR

Com. Cam Interfaces Travis Lange Com. Cam TDR May 10, 2017 Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 1

Outline • Mechanical Interfaces – Cryostat to L 3 flange – Cryostat to Com. Cam Sled – Utility Box to Com. Cam Sled • Utility Interfaces – TMA Bulkhead to Utility Box – Block Diagram • Software – HCU control logic Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 2

Com. Cam Layout Com. Cam Sled Utility Box Refrigeration Pathfinder Volume Corrector Optics, Shutter and Filter Changer Cryostat Stage Assy Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 3

Mechanical Interfaces Utility Box to Com. Cam Sled Utility Box to Refrigeration Pathfinder Utility Box to TMA Bulkhead Cryostat to L 3 Flange Cryostat Stage Assy to Com. Cam Sled Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 4

Utility Box Interface Definition Drawing Utility Box Credit: Scott Newbry Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 5

Cryostat Interface Definition Drawing Credit: Justine Haupt Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 6

Utilities at Bulkhead Plate: LSE-64 • 380 VAC 3 -phase power – Stepped down to 220 VAC single-phase • DAQ Fibers (12 multi-strand) – Using 1 of the DAQ fibers • CCS Fiber (1 multi-strand) • 2 Copper Communications Wires – May use 1 wire for Master Control Module…TBD • 22 Refrigeration Hoses (+5 for spares) – N/A for utility box • Dynalene supply and return – Cooling utility box volume, cryotels and power supplies • Clean Dry Air – Purging of utility box volume Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 7

Com. Cam Block Diagram Power Conversion: 380 VAC 3 phase to 220 VAC single-phase CCS Fiber Dynalene Coolant DAQ Fiber Filter Changer and Shutter Cryostat Stage Assembly Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 8

Interface to Refrigeration Pathfinder • Not specifically covered in this review • Mechanical volume (Ø 940 mm x 771 mm) for pathfinder at back of utility box • Utilities needed for refrigeration pathfinder – – – – – Turbo pump and controller Ion pump and controller HCU Cryo and cold system heaters Vacuum gauges, readout and power supply RTDs and digitization electronics Pressure transducers and digitization electronics VQM Gate valves and pneumatic controls for valves Protection system? Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 9

Interface to Refrigeration Pathfinder • Very little work on refrigeration pathfinder currently – Interface to Utility Box not well defined • Based on current layout with “I&T” HX in the Com. Cam model, refrigeration team confirms 3 circuit system will fit • LCN generated for FY 18 funding of refrigeration pathfinder – Design to begin in FY 18 Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 10

Software Interface • Components within utility box specified to be same as Camera utility trunk components wherever possible – For the same components, CCS will already have control scripts – For new/different components, CCS will need to create new controls • Current architecture has one HCU to control the cryostat and another HCU to control the filter changer and shutter – Camera utility trunk has many more HCUs – Control logic for startup/cooldown most likely different from Camera • Startup/cooldown procedures for the cryostat are being defined now in TS 7/TS 8 • CCS and DAQ can accommodate Com. Cam on the TMA and Camera testing in the maintenance area (or vice versa) Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 11

End of Presentation Com. Cam TDR • NOAO, Tucson, AZ • May 10, 2017 12