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HI Pablo,</div>
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Thank you very much for your detailed software and control status of the PRad-II target, I really appreciate it. </div>
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I will find out the status of modifying power distribution box and let you know. For powering the 3400 and 1500 pumps together, can I "borrow" the outlet for the cold head compressor to power the extra pump? Does the interlock care about that? I'll be working
at ESB after 2:30 this afternoon for some cabling issues.</div>
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Assuming we have all needed (on order) parts, could you estimate how much time needed (only in ballpark) on your side that I can start run the full target on the local PC? With the ERR schedule for 5/9, I am asked to show some testing results and confirming
the operation parameters. It'll great if I can wrap up the 1-week test by 5/1. </div>
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Thanks again for your time and help.</div>
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Best regards,</div>
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Xiangdong</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Dsg-hallb_prad_ii <dsg-hallb_prad_ii-bounces@jlab.org> on behalf of Pablo Campero Rojas <campero@jlab.org><br>
<b>Sent:</b> Thursday, April 3, 2025 9:51 AM<br>
<b>To:</b> dsg-hallb_prad_ii@jlab.org <dsg-hallb_prad_ii@jlab.org><br>
<b>Subject:</b> [Dsg-hallb_prad_ii] PRad-II instrumentation and controls tasks status</font>
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Hello Xiangdong,</div>
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<b><u>Interlock Box</u></b></div>
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Brian and I have been able to test and operate the PRad Interlock Box, here some relevant points:</div>
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<div>Noticed some inconsistencies with the provided documentation (relay diagram); made notes to show corrections.</div>
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<div>For the test, all monitored variables and operational conditions were forced to stay clear (green LED lights at the front panel of the box).</div>
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<div>Operational functions for each condition were verified by measuring voltage at the output relays.</div>
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<div>Based on current testing, the interlock box can only disable the pumps; starting pumps requires operating the controller locally.</div>
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We need more testing as the vacuum pump controllers model 1500 vs 3400 behave differently—the 1500 can run right away after interlocks are cleared, but for the 3400, the remote mode setting needs to be modified to run them again.</div>
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To be able to test 3400 and 1500 vacuum pumps at the same time we have requested to power them on and we have been informed that required electrical components are being ordered and will need to be installed prior to this intent; DSG is waiting on this to proceed
with more testing.</div>
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<b><u>LabVIEW Program</u></b></div>
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I debugged, modified, and tested the existing PRad LabVIEW program to control and monitor target motors; now the LabVIEW program can be used with no issues for each motor.</div>
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I'm in the process of modifying the existing LabVIEW program to allow connection of the remaining instrumentation: MFC, pressure controller, vacuum controller, pulse tube, and temperature controllers.</div>
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A spreadsheet with the information to properly setup and connect the instrumentation to the assigned serial port for each connected instrument is under development.</div>
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Let me know if you have any questions.</div>
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Regards,</div>
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Pablo</div>
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