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<p>Hi Probir,</p>
<p><br>
</p>
<p>The LCW work has been delayed until Wednesday, April 28th. I
will let you know as soon as it is on line.</p>
<p><br>
</p>
<p>Thanks</p>
<p>Bob<br>
</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 4/22/2021 2:04 PM, Probir Ghoshal
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:BLAPR09MB6465A8BC01B74A8A83602343DD469@BLAPR09MB6465.namprd09.prod.outlook.com">
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Bob and Team,</div>
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<br>
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<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
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Since we have not heard anything about the LCW been restored in
the hall.</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
We are not planning any diagnostic test this week and postpone
till I hear from you all.</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Please let me know by Friday afternoon 1500 hrs if we can plan
to come over to carry out the diagnostic and checks that was
planned this week for the SC magnets.</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
I will accordingly co-ordinate with the DSG team to help
depending on their availability next week.</div>
<div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
DSG - thanks for your help, will let you know the forward plan
once i hear from Bob M.</div>
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font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Regards</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Probir</div>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b> Probir
Ghoshal <a class="moz-txt-link-rfc2396E" href="mailto:ghoshal@jlab.org"><ghoshal@jlab.org></a><br>
<b>Sent:</b> Wednesday, April 21, 2021 2:28 PM<br>
<b>To:</b> Tyler Lemon <a class="moz-txt-link-rfc2396E" href="mailto:tlemon@jlab.org"><tlemon@jlab.org></a>; Bob Miller
<a class="moz-txt-link-rfc2396E" href="mailto:rmiller@jlab.org"><rmiller@jlab.org></a>; Krister Bruhwel
<a class="moz-txt-link-rfc2396E" href="mailto:bruhwel@jlab.org"><bruhwel@jlab.org></a><br>
<b>Cc:</b> Magnet Group <a class="moz-txt-link-rfc2396E" href="mailto:magnetgroup@jlab.org"><magnetgroup@jlab.org></a>; Marco
Battaglieri <a class="moz-txt-link-rfc2396E" href="mailto:battagli@jlab.org"><battagli@jlab.org></a>;
<a class="moz-txt-link-abbreviated" href="mailto:dsg-hallb_magnets@jlab.org">dsg-hallb_magnets@jlab.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:dsg-hallb_magnets@jlab.org"><dsg-hallb_magnets@jlab.org></a>;
Patrizia Rossi <a class="moz-txt-link-rfc2396E" href="mailto:rossi@jlab.org"><rossi@jlab.org></a>; Calvin Mealer
<a class="moz-txt-link-rfc2396E" href="mailto:mealer@jlab.org"><mealer@jlab.org></a>; Denny Insley <a class="moz-txt-link-rfc2396E" href="mailto:dinsley@jlab.org"><dinsley@jlab.org></a><br>
<b>Subject:</b> Re: [Dsg-hallb_magnets] [New Logentry] Hall B
LCW turned off; cannot perform interlock checks until flow
restored</font>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Thanks Tyler, Pablo for coming in the hall and did the best
you can do.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
The controlled power on Solenoid is in place and will be in
place till we complete the solenoid checks first.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Once we are satisfied and completed, we shall move the
controller power to the torus MPS (Krister will do that when
we complete the work on Solenoid).</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
The MPS (both) are locked and tagged by Krister. He will be
available to do that independent of us.<br>
I will let you know once we are ready to start checks. You can
remotely clear the interlocks before you start from home just
to check.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Bob, Krister, Calvin - I will wait to hear from either of you
once the LCW is restored in the hall and we can do the checks
as required clearing the faults.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Regards</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Probir</div>
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font-size:12pt; color:rgb(0,0,0)">
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<div><strong>Probir K Ghoshal</strong>, PhD.<br>
Senior Magnet Engineer<br>
Magnet Group, Experimental Nuclear Physics<br>
<em>Jefferson Lab<br>
600 Kelvin Drive, Suite #3, 55C<br>
Room #2531, Newport News, VA 23606 (USA)</em><br>
<br>
Telephone: 757 269 6702 (office)<br>
Mobile: 518 334 3289<br>
email: <a class="moz-txt-link-abbreviated" href="mailto:ghoshal@jlab.org">ghoshal@jlab.org</a></div>
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<font style="font-size:11pt" face="Calibri, sans-serif"
color="#000000"><b>From:</b> Dsg-hallb_magnets
<a class="moz-txt-link-rfc2396E" href="mailto:dsg-hallb_magnets-bounces@jlab.org"><dsg-hallb_magnets-bounces@jlab.org></a> on behalf of
<a class="moz-txt-link-abbreviated" href="mailto:tlemon@jlab.org">tlemon@jlab.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:tlemon@jlab.org"><tlemon@jlab.org></a><br>
<b>Sent:</b> Wednesday, April 21, 2021 2:10 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:dsg-hallb_magnets@jlab.org">dsg-hallb_magnets@jlab.org</a>
<a class="moz-txt-link-rfc2396E" href="mailto:dsg-hallb_magnets@jlab.org"><dsg-hallb_magnets@jlab.org></a><br>
<b>Subject:</b> [Dsg-hallb_magnets] [New Logentry] Hall B
LCW turned off; cannot perform interlock checks until flow
restored</font>
<div style="line-height:1.5; font-family:"Trebuchet
MS","Helvetica
Neue",Arial,Helvetica,sans-serif; font-size:87.5%">
</div>
</div>
<div id="x_x_mimemail-body" class="x_x_elog-logentry-notify"
style="line-height:1.5; font-family:"Trebuchet
MS","Helvetica
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<div id="x_x_center" style="line-height:1.5;
font-family:"Trebuchet MS","Helvetica
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<div id="x_x_main" style="line-height:1.5;
font-family:"Trebuchet MS","Helvetica
Neue",Arial,Helvetica,sans-serif; font-size:87.5%">
<h1 class="x_x_node-title" style="font-size:1.6em"><a
href="https://logbooks.jlab.org/entry/3874360"
rel="bookmark" style="text-decoration:none"
moz-do-not-send="true">Hall B LCW turned off; cannot
perform interlock checks until flow restored</a>
</h1>
<div class="x_x_contextual-links-wrapper"
style="line-height:1.5; font-family:"Trebuchet
MS","Helvetica
Neue",Arial,Helvetica,sans-serif;
font-size:87.5%">
<ul class="x_x_contextual-links">
<li><a
href="https://logbooks.jlab.org/entry/3874360/edit?destination=email/send"
style="text-decoration:none"
moz-do-not-send="true">Edit</a></li>
<li><a
href="https://logbooks.jlab.org/entry/3874360/delete?destination=email/send"
style="text-decoration:none"
moz-do-not-send="true">Delete</a></li>
</ul>
</div>
<div class="x_x_date-vitals" style="line-height:1.5;
font-family:"Trebuchet MS","Helvetica
Neue",Arial,Helvetica,sans-serif;
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<p class="x_x_author-datetime" style="margin-top: 0px;
margin-bottom: 0px;font-size:87.5%; margin:0.1em
0px; font-weight:bold">
Lognumber <a
href="https://logbooks.jlab.org/entry/3874360"
class="x_x_lognumber" style="text-decoration:none"
moz-do-not-send="true">
3874360</a>. Submitted by <a
href="https://logbooks.jlab.org/user/tlemon"
style="text-decoration:none"
moz-do-not-send="true">
tlemon</a> on <time
datetime="2021-04-21T14:09:32-0400"><a
href="https://logbooks.jlab.org/entries?start_date=1619024972&end_date=1619032172&book=DSGLOG&book=HBSOLENOID"
style="text-decoration:none"
moz-do-not-send="true">Wed, 04/21/2021 - 14:09</a></time>.
</p>
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margin-bottom:1em; font-size:87.5%">
<tbody>
<tr>
<th style="vertical-align:middle;
text-align:left; width:15%; padding:0.1em">Logbooks:
</th>
<td style="vertical-align:middle;
text-align:left; width:auto; padding:0.1em"><a
href="https://logbooks.jlab.org/book/dsglog"
style="text-decoration:none"
moz-do-not-send="true">DSGLOG</a>
<a
href="https://logbooks.jlab.org/book/hbsolenoid"
style="text-decoration:none"
moz-do-not-send="true">
HBSOLENOID</a></td>
</tr>
<tr>
<th style="vertical-align:middle;
text-align:left; width:15%; padding:0.1em">Entry
Makers:
</th>
<td style="vertical-align:middle;
text-align:left; width:auto; padding:0.1em">campero,
ghoshal</td>
</tr>
</tbody>
</table>
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<div class="x_x_logentry x_x_node-content"
style="line-height:1.5; font-family:"Trebuchet
MS","Helvetica
Neue",Arial,Helvetica,sans-serif;
font-size:87.5%">
<p style="margin-top: 0px; margin-bottom: 0px;">Hall B
LCW is turned off for work on the system.</p>
<p style="margin-top: 0px; margin-bottom: 0px;">Without
LCW flow, internal MPS interlocks cannot be cleared.
This interlock is internal to the MPS and cannot be
bypassed. The interlock checkout procedure requires
all interlocks to be clear before starting the
checks.</p>
<p style="margin-top: 0px; margin-bottom: 0px;">Interlock
checkout will be continued once LCW flow is
restored.</p>
</div>
<div class="x_x_attachment-box" style="line-height:1.5;
font-family:"Trebuchet MS","Helvetica
Neue",Arial,Helvetica,sans-serif;
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</blockquote>
<pre class="moz-signature" cols="72">--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 822-9586
</pre>
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