[Halld-controls] Hall D controls meeting on April 3 at 9:30am

[Hovanes Egiyan]

Hi,

I posted the notes from the last Hall D controls meeting on the wiki
and pasted them to bottom of this message.

Hovanes.


  Minutes

Present: Dave, Mark S., Scot, Orlando, Hovanes, Elton, Nerses


      [edit
      <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=4>]
      BCAL pulser

  * Orlando showed the status of the BCAL pulser control
    <https://halldweb1.jlab.org/wiki/images/c/c6/BCALPulser_GUI_presentation.pdf>.

  * The application is pretty much ready to be used.


      [edit
      <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=5>]
      Alarms for voltages

  * Nerses is working on the scheme to generate alarms for voltages
    <https://halldweb1.jlab.org/wiki/index.php/Alarms_for_voltages_%28Nerses%29>
    in EPICS.
  * He showed the logic he is currently considering.
  * There was a suggestion to have an alarm when the voltages are set to
    be off, but they are still on,
  * Orlando pointed out that there will be a delay between the moment
    the setpoint is set and setpoint is readback. This time delay needs
    to be taken into account.


      [edit
      <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=6>]
      BCAL interlocks

  * Dave reported significant progress on the BCAL interlocks
    <https://halldweb1.jlab.org/wiki/images/9/96/BCAL_Interlock.pptx> .
  * Upstream is wired and tested. Downstream interlock is in progress.
  * Downstream chiller is not connected as of today. Will be connected
    most likely by the end of today.
  * Buttons need to be change to match Elton's convention .
  * Hovanes asked Elton if the expert GUI that Dave has will need to be
    copied to EPICS or EPICS will need to have only a GUI for the shift
    personnel with very limited personality. This was followed by a
    discussion about the need to have a PLC in the counting house.


      [edit
      <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=7>]
      Radiator stage

  * The test were done by Yi and Hovanes. The stage satisfied the specs.
    The limit switches will have to replaced.
  * Slava and Hovanes handed the stage to Tim for installation on the
    tagger hall. The PS converter stage is in the FEL now.


      [edit
      <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=8>]
      Cabling of the motors

  * Tina has been working on the cables for the Hall D motorized stages.
  * Collimator cable will be complete today.
  * Scot needs the notation for the low and high limit switches for each
    stage.


      [edit
      <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=9>]
      Gas system controls

  * Gas system is pretty close to be complete.
  * Procedures are being circulated for the controls.
  * Dave reported that 80% of the PLC GUIs are complete.
  * Michael Staib from CMU is working on the EPICS controls screens for
    the gas system .


      [edit
      <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=10>]
      Other

  * Elton would like to purchase flow meters with remote readout. He
    will send an e-mail with the data-sheet or the specification for the
    flow-meter he liked.


  [edit
  <https://halldweb1.jlab.org/wiki/index.php?title=Controls_Meeting_3-Apr-2014&action=edit&section=11>]
  Action items

  * Hovanes will send info to Scot on limit switches for motors.
  * Beni will forward Hovanes the draft of the procedures for the gas
    system to Hovanes.
  * Dave will change the buttons on the BCAL temperature GUIs to match
    Hall D convention for controls buttons.
  * Elton will send an e-mail with the information on the flow meter.
  * Dave will check if the flow-meter that Elton wants could be easily
    integrated into the PLC controls.
  * Orlando will commit the final version of the BCAL pulser control and
    Hovanes will check out the GUIs on the official tree.




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