Difference between revisions of "Controls Meeting 17-Nov-2011"

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'''Solenoid Controls Redesign'''
 
'''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.
 +
 +
 +
 +
'''

Revision as of 15:41, 18 November 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
  • Mantis task tracker
  • PyIRMIS - Hovanes, Elliott


Time/Location

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


Announcements

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.


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