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<font face="Times New Roman">Hi Aaron,<br>
<br>
One quick question. When this HV mainframe system was purchased
Brad also ordered an A4532 booster power supply. Is that booster
installed in the mainframe you are testing?<br>
<br>
Thanks,<br>
Greg<br>
</font><br>
<div class="moz-cite-prefix">On 1/28/2020 1:52 PM, Aaron Brown
wrote:<br>
</div>
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255, 255);">
Hello Alberto,</div>
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<br>
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255, 255);">
Another quick thought:<br>
<br>
After speaking to Pablo, I thought it may be helpful to mention
that the issue with random parameter changes while using EPICS
has not been observed when only one board is populated in the
crate. Previously when we have seen these parameter changes we
have been operating with a fully populated crate, so this may be
one reason you have not been able to reproduce this issue.</div>
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font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255,
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<br>
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Just a thought.</div>
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255, 255);">
<br>
Warm regards,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255,
255, 255);">
Aaron Brown<br>
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<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
Alberto Lucchesi <a class="moz-txt-link-rfc2396E" href="mailto:a.lucchesi@caen.it"><a.lucchesi@caen.it></a><br>
<b>Sent:</b> Tuesday, January 28, 2020 12:28 PM<br>
<b>To:</b> Aaron Brown <a class="moz-txt-link-rfc2396E" href="mailto:ambrown@jlab.org"><ambrown@jlab.org></a>; dsg-hallc
controls <a class="moz-txt-link-rfc2396E" href="mailto:dsg-hallc_controls@jlab.org"><dsg-hallc_controls@jlab.org></a><br>
<b>Cc:</b> Greg Kibilko <a class="moz-txt-link-rfc2396E" href="mailto:greg@setechsales.com"><greg@setechsales.com></a>; Gianni
Di Maio <a class="moz-txt-link-rfc2396E" href="mailto:g.dimaio@caen.it"><g.dimaio@caen.it></a>; Nicola Paoli
<a class="moz-txt-link-rfc2396E" href="mailto:n.paoli@caen.it"><n.paoli@caen.it></a><br>
<b>Subject:</b> [EXTERNAL] Re: CAEN JLAB - EPICS control - 2
part</font>
<div> </div>
</div>
<div>Hi Aaron,<br>
<br>
after my answer to your email I had a brainstorming with my
colleagues of HV division concerning the issue 2.<br>
We don't have yet an explanation of that wrong behavior and
there some question we would like ask you.<br>
<br>
1) thet load is 2 MΩ for each channel, but which is the voltage
of each channel?<br>
2) the board that, let'say, "disappear" could be one with the
load attached or one without load, we need to knwo how many
boards are inserted in the Sy4527 and how many of them have the
load.<br>
<br>
<p>3) Can you verify if each of the boards (with the load) on
the setup that shows the issue have the pins in the right
position? One of our hypotesis is that if the pins ( male and
female) are not well plugged, it is possible that a bad
contact could induce discharges that power off that board or
one next to that..</p>
<p>Best Regards,<br>
Alberto<br>
</p>
<p><span style=""><br>
</span></p>
<p><span style=""><br>
</span></p>
</div>
</blockquote>
<br>
<div class="moz-signature">-- <br>
<b>Greg Kibilko</b><br>
<b>SETS - SE Technical Sales, Inc.</b><br>
112 Tyra Lane<br>
Townville, SC 29689<br>
P: (864) 356-2606<br>
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