[Hps-controls] HPS controls meeting, Wednesday February 5, 2014

[Hovanes Egiyan]

Hi,

I posted the minutes of today's HPS slow controls meeting on confluence

https://confluence.slac.stanford.edu/display/hpsg/2014.02.05+Biweekly

and also pasted them into this message.

Hovanes.


    Minutes

Present at JLab: F.-X., Krister, Stepan, Hovanes

Present at SLAC: Sho, Pelle, Takashi

Present at Glasgow: Ken, Bryan


          Motor Setup for SLAC

  * Hovanes has the desktop computer and the VME crate setup, and the
    driver box connected to the VME.
  * Operating without encoder feedback for now.
  * There seems to be a problem with either the motor driver
    configuration or the driver wiring.
  * Krister is tied up with CLAS12 magnets, Denny Insley will probably
    help Hovanes with the motor driver box and cables.
  * Denny will need to make a short (~2m) encoder cable (5-ping to
    trim-trio) and to figure out the setting for the driver box.
  * Denny can also start ordering and making the cables for the HPS
    motors, CLAS motor cables were cut during decommissioning.
      o 2 boxes downstream of CLAS, 1 motor box upstream of CLAS
      o F.-X. needs to send the drawing with the locations of the motors
        required for the HPS beamline to Krister and Denny.
      o For SVT motors, in addition to the cable for the motor leads we
        will need to find a cable for encoder (8-strands twisted cable
        shielded, RS-422)
  * Stepan told us that Chris Cuevas can help with manpower if any
    electronics related or cable-making work needs to be done.


          Voltage GUI requirements

  * Bryan is ready to work on the SVT and ECAL voltage GUIs, can work
    remotely at Glasgow.
  * Hovanes presented what he thinks needs to be done in general or the
    ECAL and SVT voltage GUIs.
  * Bryan will be visiting JLab for two weeks in the beginning of March
    (CLAS collaboration meeting)
  * Bryan will also be able to travel to JLab at the end of April to try
    the software at JLab and then travel to SLAC to setup the voltage
    controls SVT test .
      o Pelle will try to find out when the SVT test occurs, and let
        Bryan know, preferable by beginning of April.


          SVT Interlocks

  * Hovanes and Krister met with Dave Butler from Hall D and described
    him the requirements for SVT interlocks
  * Dave gave us his recommendations for the PLC modules as well as
    quotes from the local (for JLab) PLC dealer.
  * If no objections are received by Friday morning, Hovanes will
    forward these quotes to Marco for procurement.
  * Stepan asked if the flow meter for the SVT interlocks will be speced
    and procured by JLab or SLAC groups. Hovanes' understanding is that
    Marco will take care of specifying the flow meter and either JLab or
    SLAC can buy it. Pelle will double check this to determine who does
    this.
  * Hovanes contacted JLab PSS people regarding having an FSD input to
    the SVT interlocks. PSS group will help us to set it up.


          SVT chller(s)

  * Hovanes was curious if there was any decision on using a second
    chiller for SVT. In particular, if there was a decision, what would
    be the requirements for it in terms of controls.
  * According to Pelle, SVT group is strongly leaning towards a second
    chiller for FE boards, and it would be set to room temperature. The
    FE board chiller would also need to be interlocked (exactly the same
    way as the main chiller) and will need to be remotely controlled and
    monitored in EPICS.
  * Pelle will further discuss the needs of FE board chiller with Marco
    and let us know at the next meeting.


    Action items

  * Hovanes will meet with Denny and explain what needs to be done for
    the motor setup (encoder cable, driver settings).
  * Denny will start working on the cable and the motor box.
  * F-X. will send a drawing of where the beamline motors need to be for
    HPS 2015 so that Denny can start procuring and making motor cables
    and laying them in the Hall.
  * Pelle will find out when the SVT full test at SLAC will take place
    and let Bryan know by April , so that Bryan can make plans.
  * Hovanes will send the quotes with the list of PLC modules with
    quotes to Marco sometime this Friday if he does not receive objections.
  * Hovanes, Stepan and F.-X. will stay in touch with JLab PSS group
    regarding the accelerator's FSD input for SVT interlocks and come up
    with a plan by the end of February.
  * Pelle will talk to Marco regarding the following items and let us
    know the results on the next meeting:
      o Flow meter - who specs it, and who buys it.
      o Requirements for controls and monitoring for the second FE-board
        chiller.


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