1. LCLS-II Cryoplant Controls Readiness to Procure
Dana Arenius
Sept 13, 2017

2. Readiness (1) Response:
1a. The controls of the remaining equipment be purchased is the same components used on subsystems which have been reviewed and approved for procurement. Peer review of the on-going balance of the controls have been conducted and recommendations have been evaluated and incorporated into the design.
1b. Lessons learned through both design and operational experience have been used in the control hardware which represent a high level of performance, reliability, and cost effective approach from past projects as SNS, CEBAF, and 12 GeV upgrade.
LCLSII Cryoplant Controls FDR Sept 13, 2017

3. Readiness (2)
Resonse:
2a. The control architecture presented shows a clearly defined approach with PLC hardware approved for use by SLAC
2b. Location of control cabinets were a part of the Installation Design FDR and approved for construction
2c. Assembly and control wiring documentation was reviewed as a part of the Installation Design FDR to ensure the installation GC contractor has sufficient reference documentation for interconnection of the subsystems. This includes input and output tagging, wiring and labeling
2d. The spares I/O cards planned are consistent with the amount of usage experience in similar plants with 20% of spare card slots for expansion.
LCLSII Cryoplant Controls FDR Sept 13, 2017

4. Readiness (3) Response:
2e. The type of PLCs, I/O modules, etc. have been discussed and agreed with SLAC. These types have been used within previously approved subsystem design control cabinet assemblies.
2f. JLab documentation clearly depicts internal cabinet layout, equipment locations, touch-safe contacts, internal LED lighting, etc.
LCLSII Cryoplant Controls FDR Sept 13, 2017

5. Radiness (4)
Response:
3a. Control cabinets are adequately located and approved for installation as part of the Installation Design FDR.
4a. All known ES&H aspects and design aspects have been addressed in the design inclusive of voltage separation, labeling, maintenance space allocation, no touch terminals, etc.
4b. Not all cabinets are approved by NRTL. Approvals are usually attributed to standard, mass produced industry products which justifies approval costs.
LCLSII Cryoplant Controls FDR Sept 13, 2017

6. Readiness (5) Response:
5c. Emergency/Stop switches are provided on panels and cabinets of rotating machinery but not generally through the plant since the refrigerator is not a production line.
6a The design majority is based on the components of the P&IDs and documentation already released for installation and/or subsystems
6b,c,d Documentation inclusive of specificattons, interface documents and associated drawing packages have been well defined and already part of many of the reviewed and approved installation documents
LCLSII Cryoplant Controls FDR Sept 13, 2017

7. Readiness (6) Response:
7a. The current cost estimate is reasonable to achieve the planned technical scope which is based on vendor budgetary quotations. The cost estimate is ~$1.5M.
7b. Adequate schedule time has been allotted for both fabrication and delivery of material coupled to a timely completion of the FDR.
LCLSII Cryoplant Controls FDR Sept 13, 2017

8. May I answer any questions?
LCLSII Cryoplant Controls FDR Sept 13, 2017