<div dir="auto">Bill, some things to try. Check the phase connections for both pumps. Check the vac switch for operation when pumping down. Look for a configuration menu on the controller, maybe it has a dead battery and is defaulting. We have some of these, I'll look for a manual. <div dir="auto"><br></div><div dir="auto">Jim</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Aug 19, 2023, 7:47 AM William Kiether <<a href="mailto:wjkiethe@ncsu.edu">wjkiethe@ncsu.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">I am dead heading the package, it gets to 450 mTorr - still no blower</div><div dir="auto"><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Aug 18, 2023 at 6:54 PM Paolini, Steven <<a href="mailto:spaolini@cns.fas.harvard.edu" target="_blank" rel="noreferrer">spaolini@cns.fas.harvard.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div dir="ltr">Most mech pump/ blower packages use pressure as a signal for the blower to cut in. I would isolate the package by dead heading the pump and seeing if the blower kicks in. If so, you have an upstream vacuum leak that prevents the blower from triggering. <span></span></div>
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<div dir="ltr">Equipment Dood</div>
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<div id="m_-521027561874828619m_-4962328521739277576divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu" target="_blank" rel="noreferrer">labnetwork-bounces@mtl.mit.edu</a>> on behalf of William Kiether <<a href="mailto:wjkiethe@ncsu.edu" target="_blank" rel="noreferrer">wjkiethe@ncsu.edu</a>><br>
<b>Sent:</b> Friday, August 18, 2023 1:26:36 PM<br>
<b>To:</b> Dennis Schweiger <<a href="mailto:schweig@umich.edu" target="_blank" rel="noreferrer">schweig@umich.edu</a>><br>
<b>Cc:</b> Lab Network (<a href="mailto:labnetwork@mtl.mit.edu" target="_blank" rel="noreferrer">labnetwork@mtl.mit.edu</a>) <<a href="mailto:labnetwork@mtl.mit.edu" target="_blank" rel="noreferrer">labnetwork@mtl.mit.edu</a>>; Philip Barletta <<a href="mailto:pbarlet@ncsu.edu" target="_blank" rel="noreferrer">pbarlet@ncsu.edu</a>>; Erik Vick <<a href="mailto:epvick2@ncsu.edu" target="_blank" rel="noreferrer">epvick2@ncsu.edu</a>><br>
<b>Subject:</b> Re: [labnetwork] Ebara Pump Setup</font>
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<div dir="auto">No, we are aware of the 30 second delay, and have let it go for up to 10 minutes - we also haven’t detected any voltage being sent to the blowers </div>
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<div dir="auto">Bill</div>
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<div dir="ltr">On Fri, Aug 18, 2023 at 12:29 PM Dennis Schweiger <<a href="mailto:schweig@umich.edu" target="_blank" rel="noreferrer">schweig@umich.edu</a>> wrote:<br>
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<div style="font-family:arial,sans-serif">Bill,</div>
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<div style="font-family:arial,sans-serif">On the Ebara A70's we use, there is a delay that is vacuum related between the start of the mechanical pump, before the blower fires up. Is it possible that this is your issue?</div>
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<div>Dennis</div>
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<div>734.647.2055 Ofc</div>
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<div dir="ltr">On Fri, Aug 18, 2023 at 12:21 PM William Kiether <<a href="mailto:wjkiethe@ncsu.edu" target="_blank" rel="noreferrer">wjkiethe@ncsu.edu</a>> wrote:<br>
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<div dir="ltr">Hello,
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<div>We are trying to test some Ebara dry pump/blower combos that we got from a tool donation and are having problems with the setup. The pumps are EST200WN models with both a pump and a blower, but the controllers are only recognizing them as EST10N, which
are smaller units w/o the blower option. When powered up, only the pump will turn on. This occurs whether we are using the Ebara controller or the remote option with jumpers. The power is 208 - 3phase, and we also tried switching the 2 of the phases. Has anybody
encountered this problem? The Ebara documentation has not been helpful for this issue. </div>
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<div>Bill Kiether</div>
<div>NCSU Nanofabrication Facility</div>
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