Controls Meeting 17-Nov-2011

Agenda

• Announcements
  • FMEA for solenoid required by Lehman committee
  • Need EE help?
• Minutes from previous meeting 20-Oct-2011
  • Vendor show doomed the 3-Nov meeting
• Equipment orders - all
• Solenoid_Controls_Redesign - Mark, Josh, Scot, Cody, Yi, Elliott
  • Preliminay P&I completed, cryo vessel to be ordered soon
  • changes to cryo control system
  • shunt replacement
  • coil tap isolation, range and precision
  • UPS power to Danfysik
  • quench detector balance, new quench detector
  • ground fault detector using dump resistor
  • redundant Danfysik contactor, quench detector, dump diodes?
  • fast DAQ replacement
• Experiment Control Supervisor - Vardan, Hovanes, Elliott
  • use CSS?
• EPICS evaluation
  • archiver
  • alarm system
  • backup/restore
• EPICS - Nerses, Hovanes, Elliott
  • JLab discriminator
  • directory structure
• Controls test stand - Hovanes, Josh
  • SOE module
  • 435NBX serial module
  • EPICS drivers and gui's
• PLC programming, Viewpoint, licenses, etc. - Josh
  • high-priority tasks
  • add-on instructions -- ladder logic, function block, structured text
• Networking - Hovanes, Elliott
• UPS power in the hall - Elliott
• Elog - Elliott
  • Midas
    • manual database
    • maintenance logs
  • operator log?
• Mantis task tracker
• PyIRMIS - Hovanes, Elliott

Time/Location

9:30 AM Thurs 17-Nov-2011 CC L207

Next Meeting

Thurs 1-Dec-2011 9:30am CC L207

Minutes

Present: Elliott W, Josh B, Mark S.

Equipment Orders

• Mark still has to order rack parts.
• Mark will produce a desired equipment list in priority order.
• Josh has received everything he ordered (SOE, 435NBX, etc).

Solenoid Controls Redesign

• Jonathan and Rao produced a preliminary P&I diagram, need feedback from Scot et al. concerning controls wiring.
• Function of some valves has changed.
• Order for new vessel will go out soon.
• Mark will order (has ordered?) the shunt replacement.
• We still don't have a good strategy for coil tap signal isolation.
• We expect Giles will work on bringing UPS power to the hall, a 220V 30A subpanel seems reasonable.
• Still don't know the coil inductances, still working on alternative quench detectors.
• Mark will design the new ground fault detector using the existing dump resistor.
• FMEA will help determine the level of redundancy needed (contactor, QD, diodes, UPS power to power supply, etc).
• Yi tested the NI 8-chan (separate ADC for each channel) fast-daq board and is very happy. No crosstalk seen up to high sampling rates.