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</style><article id="node-692481" class="node node-logentry contextual-links-region article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/3619588" rel="bookmark">Solenoid fast dump at 2416 A</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3619588/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3619588/delete?destination=email/send">Delete</a></li></ul></div>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3619588" class="lognumber" data-lognumber="3619588">3619588</a>. Submitted by <a href="https://logbooks.jlab.org/user/campero">campero</a> on <time datetime="2018-11-02T05:22:42-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1541146962&end_date=1541154162&book=HBLOG&book=HBSOLENOID">Fri, 11/02/2018 - 05:22</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2018-11-02T07:14:15-0400" pubdate="pubdate">Fri, 11/02/2018 - 07:14</time></p>
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<div class="ctools-collapsible-container"><div class="ctools-collapsible-handle"><a href="#">There are 2 comments...</a></div><div class="ctools-collapsible-content"><a id="comment-18035"></a>
<article class="comment comment-new comment-by-node-author odd first clearfix"><header class="comment-header"><h3 class="comment-title">
<a href="https://logbooks.jlab.org/comment/18035#comment-18035" rel="bookmark">Based on the FastDAQ data</a> </h3>
<em class="new">new</em>
</header><footer class="submitted"><p class="author-datetime">by <a href="https://logbooks.jlab.org/user/campero" title="View user profile." class="username">campero</a> on <time datetime="2018-11-02T07:10:24-0400" pubdate="pubdate">Fri, 11/02/2018 - 07:10</time></p>
</footer><div class="comment-content">
<div class="field field-name-comment-body field-type-text-long field-label-hidden view-mode-elog_email"><div class="field-items"><div class="field-item even"><p>Based on the FastDAQ data archived, VT15 is the only one that had a voltage spike prior to the dump ~ 180 ms before the rest of the VTs. Although VT15 voltage spike seems suspicious since the analysis for the root file (solenoid_20181102_033750.root) that contains the data prior to the dump indicates ~1.58% duplicates and 3.87% overlaps. Looks like something not getting shifted correctly.</p>
<p>Attached find voltage taps plosts and QDs channels prior and right at trip time; option -JSD appliaded for all plots.</p>
</div></div></div><div class="field field-name-field-image field-type-image field-label-hidden view-mode-elog_email"><div class="field-items"><figure class="clearfix field-item even"><a href="https://logbooks.jlab.org/files/2018/11/3619588/QD1-QD4.PNG"><img class="image-style-thumbnail" src="https://logbooks.jlab.org/files/styles/thumbnail/public/2018/11/3619588/QD1-QD4.PNG" width="100" height="91" alt="" title="QD#1 Ch 1-4" /></a></figure><figure class="clearfix field-item odd"><a href="https://logbooks.jlab.org/files/2018/11/3619588/QD5-QD8.PNG"><img class="image-style-thumbnail" src="https://logbooks.jlab.org/files/styles/thumbnail/public/2018/11/3619588/QD5-QD8.PNG" width="100" height="91" alt="" title="QD2- Ch1 -4" /></a></figure><figure class="clearfix field-item even"><a href="https://logbooks.jlab.org/files/2018/11/3619588/QD1ch1%20upper%20VTs%20-%20%20None%20of%20them%20exceeded%20their%20thersholds%20prior%20to%20the%20dump.PNG"><img class="image-style-thumbnail" src="https://logbooks.jlab.org/files/styles/thumbnail/public/2018/11/3619588/QD1ch1 upper VTs - None of them exceeded their thersholds prior to the dump.PNG" width="100" height="91" alt="" title="QD#1 Ch1 Upper Voltage taps - None of them exceeded their thresholds prior to the dump" /></a></figure><figure class="clearfix field-item odd"><a href="https://logbooks.jlab.org/files/2018/11/3619588/QD1ch1%20Lower%20%20VTs%20-%20%20None%20of%20them%20exceeded%20their%20thersholds%20prior%20to%20the%20dump.PNG"><img class="image-style-thumbnail" src="https://logbooks.jlab.org/files/styles/thumbnail/public/2018/11/3619588/QD1ch1 Lower VTs - None of them exceeded their thersholds prior to the dump.PNG" width="100" height="91" alt="" title="QD#1 Ch1 Lower Voltage Taps - None of them exceeded their thresholds prior to the dump" /></a></figure><figure class="clearfix field-item even"><a href="https://logbooks.jlab.org/files/2018/11/3619588/QD2ch4%20VTs%20-%20VT15%20spike%20prior%20to%20the%20dump.PNG"><img class="image-style-thumbnail" src="https://logbooks.jlab.org/files/styles/thumbnail/public/2018/11/3619588/QD2ch4 VTs - VT15 spike prior to the dump.PNG" width="100" height="91" alt="" title="VT15 Voltage spike prior to the dump" /></a></figure><figure class="clearfix field-item odd"><a href="https://logbooks.jlab.org/files/2018/11/3619588/Solenoid%20PLC%20interlock%20Status%20screen%2011-02-2018_4.49.32.PNG"><img class="image-style-thumbnail" src="https://logbooks.jlab.org/files/styles/thumbnail/public/2018/11/3619588/Solenoid PLC interlock Status screen 11-02-2018_4.49.32.PNG" width="95" height="100" alt="" title="Solenoid PLC interlocks status screen" /></a></figure></div></div> </div>
</article><a id="comment-18032"></a>
<article class="comment comment-new even clearfix"><header class="comment-header"><h3 class="comment-title">
<a href="https://logbooks.jlab.org/comment/18032#comment-18032" rel="bookmark">MPS Status First Bits:</a> </h3>
<em class="new">new</em>
</header><footer class="submitted"><p class="author-datetime">by <a href="https://logbooks.jlab.org/user/sandoval" title="View user profile." class="username">sandoval</a> on <time datetime="2018-11-02T06:15:31-0400" pubdate="pubdate">Fri, 11/02/2018 - 06:15</time></p>
</footer><div class="comment-content">
<div class="field field-name-comment-body field-type-text-long field-label-hidden view-mode-elog_email"><div class="field-items"><div class="field-item even"><p>MPS Status First Bits:</p>
<p>Polarity Normal<br />
%<br />
Sum Interlock<br />
Preregulator Fail<br />
WaterFlow<br />
SPARE<br />
(as written in system 8500 manual, not necessarily same)</p>
<p>Later:<br />
DC Overload<br />
MPS Over Temperature</p>
</div></div></div><div class="field field-name-field-image field-type-image field-label-hidden view-mode-elog_email"><div class="field-items"><figure class="clearfix field-item even"><a href="https://logbooks.jlab.org/files/2018/11/3619588/MPS_StatusBits.png"><img class="image-style-thumbnail" src="https://logbooks.jlab.org/files/styles/thumbnail/public/2018/11/3619588/MPS_StatusBits.png" width="100" height="55" alt="" /></a></figure></div></div> </div>
</article></div></div> </div>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hblog">HBLOG</a> <a href="https://logbooks.jlab.org/book/hbsolenoid">HBSOLENOID</a></td></tr><tr><th>Entry Makers: </th><td>campero</td></tr></table></div>
<div class="logentry node-content">
<p>Solenoid fast dump at 2416 A.<br />
PLC SOE timestamps indicates that first trip was due to the MPS Dump_Contact at 03:56:51.016871. Followed by MPS Main-contact and QD1.<br />
New Solenoid SOE EPICS GUI screen matches with the PLC controlle SOE see attched screenshots.<br />
Based in this new data (timestamps for Main_contact and MPS Dump_Contact recently added), this is the first time that we can prove that Main Contact in the Solenoid MPS tripped before the QDs.<br />
Further investigations in progress.</p>
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<div class="image-wrapper"><img view_mode="elog_email" class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2018/11/3619588/Solenoid SOE Timestamps 11-02-2018_4.50.03.PNG" width="960" height="458" alt="" /></div> <div class="image-wrapper"><img view_mode="elog_email" class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2018/11/3619588/Solenoid PLC SOE.PNG" width="960" height="524" alt="" /></div> </div>
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