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Hi Xiangdong,</div>
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Just to help keep track of what was done since the mailing list is archived:</div>
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Pablo and I installed the new 30 V power supply in the IGH by mounting it on the 18.5 x 1.5 x 1/8 aluminum flat bar that you found this morning. A picture of it is attached (it is the item boxed in red).<br>
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With your help, we powered everything and it all seemed to be working correctly. Everything was left powered.</div>
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We will wait to hear from you with the results of any tests to see if there is anything else needed to get the IGH and dilution refrigerator working.</div>
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Best regards,</div>
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Tyler<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Xiangdong Wei<br>
<b>Sent:</b> Monday, July 8, 2019 10:53 AM<br>
<b>To:</b> Tyler Lemon; Amrit Yegneswaran; Peter Bonneau; dsg-hdice@jlab.org<br>
<b>Subject:</b> Re: [dsg-hdice] 30 V supply</font>
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<div>Hi Tyler,<br>
<br>
I found a 18.5 x 1.5 x 1/8 aluminum flat bar. It’s a little bit short, but enough to be mounted on the IGH frame. Please take a look.<br>
<br>
I left the flat bar on the IGH.<br>
<br>
Thanks,<br>
<br>
Xiangdong
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Xiangdong Wei<br>
<b>Sent:</b> Monday, July 8, 2019 9:56:31 AM<br>
<b>To:</b> Tyler Lemon; Amrit Yegneswaran; Peter Bonneau; dsg-hdice@jlab.org<br>
<b>Subject:</b> Re: [dsg-hdice] 30 V supply</font>
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Good morning Tyler,</div>
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Thank you for taking care of the IGH power supply issue, I really appreciate it.</div>
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I am not sure if we have the 19" DIN rail available or not, but I can check with Gary, our technician, to find out. Would you please let me know where you intend to install the Rail? I'll be at the HDice lab from 10 to 4, except lunch time.</div>
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Thanks,</div>
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Xiangdong<br>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Tyler Lemon<br>
<b>Sent:</b> Friday, July 5, 2019 11:05 AM<br>
<b>To:</b> Amrit Yegneswaran; Xiangdong Wei; Peter Bonneau; dsg-hdice@jlab.org<br>
<b>Subject:</b> Re: [dsg-hdice] 30 V supply</font>
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Hello Xiangdong,</div>
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Pablo and I took a look at the IGH where the 30 V supply needs to go.</div>
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It seems that the best way to install it is to remove the 24 V supply and install the 30 V supply using a rail mounted on the side of the IGH. The rail could be a DIN rail (in which case we'd also need a way to fasten a DIN connector to the 30 V power supply)
or a plain, flat metal bar (in which case, we'd use screws to attach the 30 V power supply to the rail).</div>
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While we were over in the HDice lab and since everything was off, we removed the 24 V supply from the DIN rail and also the DIN rail to see if that rail could be used, but it is too short. We left the DIN rail removed from the IGH with the 24 V power supply
sitting on the bottom of the crate with everything still wired.</div>
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Would HDice have either a 19-inch long DIN rail or 19-inch long x 1.5-inch wide flat metal bar that can be used? Should we go ahead and buy either if there are not any on hand?<br>
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Best regards,</div>
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Tyler<br>
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<div id="x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Amrit Yegneswaran<br>
<b>Sent:</b> Wednesday, July 3, 2019 5:50 PM<br>
<b>To:</b> Xiangdong Wei; Peter Bonneau; dsg-hdice@jlab.org<br>
<b>Subject:</b> Re: [dsg-hdice] 30 V supply</font>
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just saw your e-mail.</div>
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peter is off till monay.</div>
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mindy had attached the power cord.</div>
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if it hasn't been already installed, tyler and pablo will do this on friday 5th july.</div>
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have a nice 4th</div>
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amrit</div>
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<div id="x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Xiangdong Wei<br>
<b>Sent:</b> Wednesday, July 3, 2019 11:11 AM<br>
<b>To:</b> Peter Bonneau; dsg-hdice@jlab.org<br>
<b>Subject:</b> Re: [dsg-hdice] 30 V supply</font>
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<div>Good morning Peter,<br>
<br>
Could you please let me know when the new 30V power supply will be installed on the IGH? We are now prep the dilution refrigerator for the coming run, and need to use IGH to control the fridge.
<br>
<br>
Thanks,<br>
<br>
Xiangdong<br>
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<div id="x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Peter Bonneau<br>
<b>Sent:</b> Monday, June 24, 2019 3:01:26 PM<br>
<b>To:</b> dsg-hdice@jlab.org<br>
<b>Subject:</b> Re: [dsg-hdice] 30 V supply</font>
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Xiangdong,</div>
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If you're back from vacation, we have the 30 VDC supply that you've ordered.</div>
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We can meet if you want to discuss the next steps with this supply.</div>
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Our next scheduled meeting is July 18th since next Thursday is the July 4th holiday.<br>
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Peter<br>
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<div id="x_x_x_x_x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of Brian Eng<br>
<b>Sent:</b> Monday, June 17, 2019 5:26 PM<br>
<b>To:</b> Charles Hanretty<br>
<b>Cc:</b> dsg-hdice@jlab.org<br>
<b>Subject:</b> Re: [dsg-hdice] 30 V supply</font>
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<div class="x_x_x_x_x_x_PlainText">Andy,<br>
<br>
Just to keep everyone in the loop we checked the power supply voltages, everything looked okay.<br>
<br>
The stepper motor that drives the proportional valve was spinning as well.<br>
<br>
We'll have to wait until Wei returns to do anything else since I'm not really sure what he wanted to do with the 30 VDC supply as nothing in the schematics calls for that voltage.<br>
<br>
> On Jun 17, 2019, at 3:15 PM, Charles Hanretty <charleshanretty@gmail.com> wrote:<br>
> <br>
> Brian,<br>
> Before he went on vacation, Wei requested that I ask you to measure the voltage going to a proportional valve prior to the installation of this power supply. He'd like to see if it matches your previous measurements (taken before the installation of the
other new power supply). If you're not sure which valve this is, I can show you.<br>
> <br>
> On Mon, Jun 17, 2019 at 3:05 PM Brian Eng <beng@jlab.org> wrote:<br>
> Hi Andy,<br>
> <br>
> Peter will be looking into it, but I'll come by your office to get the supply today if that's okay?<br>
> <br>
> > On Jun 17, 2019, at 2:34 PM, Andy Sandorfi <sandorfi@jlab.org> wrote:<br>
> > <br>
> > Hi Brian,<br>
> > <br>
> > Xiangdong Wei is on vacation. Before he left he ordered a 30 V DC supply for our Oxford IGH. With Amanda gone, I’m not sure who is looking into this. Can you tell the relevant person that the supply is in my office?<br>
> > Thanks,…Andy<br>
> <br>
<br>
<br>
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