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I will set the transfer delay to zero next site visit. I did just confirm that the AC transfer control is set to GEN.<div><br></div><div><br><div><div>On Jun 15, 2010, at 9:01 AM, Steve Higgins wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"> <div class="Section1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D">Transfer delay of 30 is too long with sensitive electronics. This means that when the AC input drops to 110VAC the inverter waits 30 cycles before we disconnect from the genset. <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D">If the Ac transfer control is set to Grid instead of GEN then you would have to program these settings into the ADV/FX/GRID set points. When I visit sites I will usually program both GEN and GRID equal. <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D"><o:p> </o:p></span></p> <div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"; color:#1F497D">Steve Higgins. <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"; color:#1F497D">Sr Application Engineering Mgr<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"; color:#1F497D">Sub-Saharan Africa Business Dev Mgr. </span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"; color:#1F497D">Outback Power Systems. </span><span style="font-size:11.0pt; font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"; color:#1F497D">19009 62nd Ave Ne </span><span style="font-size:11.0pt; font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"; color:#1F497D">Arlington Wa 98223</span><span style="font-size:11.0pt; font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"; color:#1F497D">360-618-4313</span><span style="font-size:11.0pt;font-family: "Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D"><o:p> </o:p></span></p> </div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D"><o:p> </o:p></span></p> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> re-wrenches-bounces@lists.re-wrenches.org [<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Jeff Wongstrom<br> <b>Sent:</b> Tuesday, June 15, 2010 6:37 AM<br> <b>To:</b> RE-wrenches<br> <b>Subject:</b> Re: [RE-wrenches] Gen set problems<o:p></o:p></span></p> </div> </div><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Hello Steve,<o:p></o:p></p> <div><p class="MsoNormal"><o:p> </o:p></p> </div> <div><p class="MsoNormal">In my case, I tightened the voltage window to 110 lower, 125 upper and the transfer delay to 30. This made no difference. I did not confirm SETUP/FX/INPUT ...ac transfer control set to GEN.<o:p></o:p></p> </div> <div><p class="MsoNormal"><o:p> </o:p></p> </div> <div><p class="MsoNormal"><o:p> </o:p></p> <div> <div><p class="MsoNormal">On Jun 15, 2010, at 7:15 AM, Steve Higgins wrote:<o:p></o:p></p> </div><p class="MsoNormal"><br> <br> <o:p></o:p></p> <div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">William, </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Check to make sure what Input you have selected… go to SETUP/FX/INPUT… Verify that you have the Ac Transfer control set to Gen. </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Make sure that you have adjusted the transfer delay cycles in the right screen... ADV/FX/GEN under Transfer delay cycles… I would set this to 0. </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">As Mick said.. Check the Lower limit on the AC Voltage… ADV/FX/GEN… AC2 Gen Lower Limit I would adjust this up to 110-112? </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What does he have the cool down timer set to? </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I would suggest 5-10 minutes Look under… ADV/MATE/AGS/SETUP… I would set this to at least 5-10 minutes just to let the genset cool off before shutting off. </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p> <div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Steve Higgins. </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Sr Application Engineering Mgr</span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Sub-Saharan Africa Business Dev Mgr. </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Outback Power Systems. </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">19009 62nd Ave Ne </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Arlington Wa 98223</span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">360-618-4313</span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p> </div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a> [<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>William Miller<br> <b>Sent:</b> Monday, June 14, 2010 10:32 PM<br> <b>To:</b> RE-wrenches<br> <b>Subject:</b> [RE-wrenches] Gen set problems</span><o:p></o:p></p> </div> </div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Wrenches:<br> <br> I have a customer that has a problem with a new generator. He has two VFX3648 inverters in Outback stacking. He acquired a new generator, a Kohler 12RES, a reputable make and model. Below is a description of the problem:<br> <br> <i><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">The 12RES seems to be operating OK except for one problem. At the end of a charging cycle, when the gen automatically shuts down and load goes back to the inverters, all lights, TVs, etc., flash, one TV shuts off, and a GFI trips. This has happened every time. It did not happen with the 15RES or the smaller back-up gen (which was disconnected manually). With the 15RES the same GFI would occasionally trip while the unit was charging and handling house load, but never at the auto shutdown point. I replaced the GFI, but it still trips. There are three GFIs in the house, but only one--always the same--trips.<br> <br> <br> </span></i>I suggested he adjust the AC2/Gen transfer delay to a lower number. He reduced it to minimum and this did not resolve the problem. I also had him verify that the AC source is selected as generator, which it is.<br> <br> Do you have any suggestions?<br> <br> Thanks in advance,<br> <br> William Miller<br> <br> <br> <br> <br> <o:p></o:p></p><p><u>Please note new e-mail address and domain:<br> <br> </u>William Miller <br> Miller Solar<br> Voice :805-438-5600<br> email: <a href="mailto:william@millersolar.com">william@millersolar.com</a><br> <a href="http://millersolar.com/">http://millersolar.com<br> </a>License No. C-10-773985<o:p></o:p></p> </div> <pre>MESSAGE CONFIDENTIALITY NOTICE:<o:p></o:p></pre><pre>This message (including attachments) is covered by the Electronic Communication Privacy Act, 18 U.S.C. sections 2510-2521, is confidential, and may also be protected by attorney-client or other privilege. If you believe that it has been sent to you in error, please do not read it. 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