[Dsg-halla_ecal] Controls installation in Hall A

[Marc Mcmullen]

Hi Albert,

The heaters are only on the front flanges and aluminum bars.

Marc
________________________________
From: shahinya at jlab.org <shahinya at jlab.org>
Sent: Monday, September 11, 2023 8:27 PM
To: Marc Mcmullen <mcmullen at jlab.org>
Cc: dsg-halla_ecal at jlab.org <dsg-halla_ecal at jlab.org>
Subject: Re: [Dsg-halla_ecal] Controls installation in Hall A

Hi Marc and Don,

Tell me, please, do you control the temperature on the Light Guide?

Thank you,
Albert

> Hi Don,
>  on the
> Here is the current update. I have completed the following:
>
>
>   1.  Verified the controls are working with a low temperature test. All 5
> control channels are operating as expected.
>   2.  Tested the Omega and power kill switch.
>   3.  Added the 4 thermocouples to the monitoring. Now all 6 supermodule
> have a readback of the crystal surface.
>      *   They are connected in the order we discussed in the hall.
>
> Whats left to do:
>
>
>   1.  Lower the controls into the bunker and a quick check to see its all
> still connected.
>   2.  I have verified that I can monitor the system while on the hall A
> development subnet. But we still don't have a computer on the subnet. So
> we cannot remotely monitor from off-site...We have two CC requests in
> for support on this.
>   3.  I need to move the relay box down in the bunker from the top of the
> teststand. This is less critical, but if we don't move it the hall
> effect sensors may not survive the beam. These are not required for the
> system to run, but it is more information.
>
> I'll be in early to work on items 1 and 3. You can close up the teststand.
>
> Regards,
> Marc
>
>
>
> ________________________________
> From: Marc Mcmullen
> Sent: Friday, September 8, 2023 6:15 PM
> To: dsg-halla_ecal at jlab.org <dsg-halla_ecal at jlab.org>
> Subject: Controls installation in Hall A
>
> Hi Mark, Bogdan, and Don,
>
> The ECAL heater controls equipment for the six-supermodule teststand has
> been moved to Hall A.
>
> A network cable has been connected to the cRIO and I have verified that I
> can remotely ping it. I still need to connect remotely from the DSG hall A
> computer to make sure I can monitor and control the system remotely.
> Meanwhile, I have connected locally in order to continue the installation.
>
> I have verified that the controls software is reading the connected
> temperature sensors used to control the five power supplies.
>
> In addition to installing the equipment, I have installed a local power
> kill button which is part of the safety controls. When pressed it will
> remove coil power from the relays in the relay box, which will open the
> contacts which supply power to all heaters. The power kill button is in
> series with the Omega process controller. The power kill button will lock
> in the safe position when pressed and has to be rotated to return to the
> unpressed position.
>
> Monday I will continue the installation. The following tasks still need to
> be completed.
>
>
>   1.   Connect the control voltage cable from the cRIO to the power supply
> disconnect box and test
>   2.  Test the safety controls
>   3.  Perform a low temperature system test
>   4.  Lower system into the radiation bunker
>
> After the system has been fully tested I will set a meeting to go over the
> test setup.
>
> Marc
>
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