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<p>The cable is ready to be installed. We have a 120V relay box
ready and tested.<br>
</p>
<p>The power must be removed from the cRio to install so the SVT
will need to be turned off. <br>
</p>
<p>Override keys will not work when the crate is not powered.<br>
</p>
<p>Power to the chiller will also be removed for installation.</p>
<p>Let us know when the SVT is off and power can be removed from the
chiller.<br>
</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 8/22/2018 9:20 AM, Yuri Gotra wrote:<br>
</div>
<blockquote type="cite"
cite="mid:a0e75eba-24fc-df04-022f-04e0a7fdfc71@jlab.org">
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<p>Could you please provide update on this request, we are about
to have beam and the cable from the hardware interlock box to
the pump relay box is not yet installed. This could lead to the
CVT down time due to the issues with circuit breaker I reported.
Thank you<br>
</p>
<div class="moz-forward-container"><br>
-------- Forwarded Message --------
<table class="moz-email-headers-table" cellspacing="0"
cellpadding="0" border="0">
<tbody>
<tr>
<th nowrap="nowrap" valign="BASELINE" align="RIGHT">Subject:
</th>
<td>Re: [dsg-svt] Fwd: SVT Cooling System Trip Analysis
(Hardware Interlock)</td>
</tr>
<tr>
<th nowrap="nowrap" valign="BASELINE" align="RIGHT">Date:
</th>
<td>Fri, 10 Aug 2018 08:51:22 -0400</td>
</tr>
<tr>
<th nowrap="nowrap" valign="BASELINE" align="RIGHT">From:
</th>
<td>Yuri Gotra <a class="moz-txt-link-rfc2396E"
href="mailto:gotra@jlab.org" moz-do-not-send="true"><gotra@jlab.org></a></td>
</tr>
<tr>
<th nowrap="nowrap" valign="BASELINE" align="RIGHT">To: </th>
<td>dsg-svt <a class="moz-txt-link-rfc2396E"
href="mailto:dsg-svt@jlab.org" moz-do-not-send="true"><dsg-svt@jlab.org></a></td>
</tr>
</tbody>
</table>
<pre>Today's trip is caused by the circuit breaker. Around 4 am I started
warming up the tracker to prepare for the target alignment work. The
chiller and the external pump are on the same 20 A breaker (connected
via the relay). The chiller draws 15 A and the pump 3 A. When heater is
operational there could be current jumps over 20 A. Bob requested
separation of the pump and the chiller power which requires extra relay
box. Could you please provide another relay box with additional control
line from the hardware interlock box connected to the interlock system
the same way as for the existing relay box. I believe splitting the same
control line would do. Thank you
</pre>
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</blockquote>
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