[Hdicecontrols] Fwd: Re: HDice In-Beam Cryostat RealTime Controller failure

[Amrit Yegneswaran]

hi andy,

after discussing the matter with patrizia, patrizia has advised us to 
investigate the problem today.
so, we'll be looking into this issue to report to patrizia the condition 
of the system tomorrow.

amrit


-------- Forwarded Message --------
Subject: 	Re: HDice In-Beam Cryostat RealTime Controller failure
Date: 	Mon, 08 Aug 2016 14:29:55 -0400
From: 	Dr. A.M. Sandorfi <sandorfi at jlab.org>
To: 	Amrit Yegneswaran <yeg at jlab.org>
CC: 	Xiangdong Wei <xwei at jlab.org>, Michael Lowry <mlowry at jlab.org>



Hi Amrit,

In case it's of help, the failure of the real-time controller may have been
triggered by the power outage last Wednesday, after which various components
(eg. Pumps, valves) went to a state they shouldn't have been in. At least
there appears to be this time coincidence, although the controller is
powered through a UPS.

There is some urgency here. We have liquid helium on order to begin a
cool-down next Monday, 8/15. Your help would be appreciated.

Andy





On 8/8/16, 1:16 PM, "Michael Lowry" <mlowry at jlab.org> wrote:

> Hello Amrit,
>
>   I am writing to request technical assistance for the HDice group in
> diagnosing and repairing/replacing the RealTime controller which forms an
> integral part of the control system for the HDice In-Beam Cryostat.  This
> system was put together by Robert Teachey in collaboration with a post-doc in
> our group, Chris Bass, roughly 5 years ago.  It centers on a National
> Instruments RealTime Controller ( NI CRIO-9073 ) with crate with 3 modules (NI
> 9472-8chn DO, NI 9208-16chn AI current, NI 9221-8chn AI voltage).  The
> controller communicates with a Dell PC running LabVIEW over a dedicated
> ethernet.  At this time, despite numerous reset's and a power cycle, the PC is
> unable to establish a connection to the controller and the controller status
> light is periodically pulsing.  The post-doc has moved on and our group lacks
> the expertise to proceed.  Help from a knowledgeable technician would be
> greatly appreciated.
>
> Yours,
>  Michael Lowry, Research Scientist
> x7432, mlowry at jlab.org


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