<div dir="auto">Hi Mike,</div><div dir="auto"><br></div><div dir="auto">I haven’t use voltage regulators in many years. I suggest that you go straight to Rx. </div><div dir="auto"><br></div><div dir="auto">Best regards,</div><div dir="auto"><br></div><div dir="auto">Vicente “Vince” Bortone </div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, May 28, 2023 at 3:59 PM Michael Cohen via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
OK NSRCA list, got a weird one to run by the Pattern hive mind to see if anyone has any ideas. My plane has two FlexReg PLR5 Tech-Aero Voltage Regulators and batteries for redundancy. My typical flying session pre-flight checkout involves turning one on at
a time and sweeping all surfaces. Today, the rudder swept back and forth after I stopped a similar command from the transmitter on the first regulator I turned on. Maybe my leads were not fully seated??? I unplugged and re-plug both regulator leads at
the receiver and the problem went away. Today, when I got home, I decided to replace the regulator causing the issue with one from a backup plane and did my sweep checks. The following was always performed with only one regulator plugging in at a time and
without the wings on.....</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<ol>
<li style="list-style-type:"1. ""><span>With the replacement regulator (R1) plugged into channel 8, the rudder kept sweeping back and forth un-commanded (after I stopped). The elevator was fine. </span></li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"2. ";color:rgb(0,0,0)">
Moving from channel 8 to 7 (R1), t<span style="display:inline!important;background-color:rgb(255,255,255)">he rudder kept sweeping back and forth<span style="display:inline!important;background-color:rgb(255,255,255)"><span> </span>un-commanded</span>.
The elevator was fine.</span></li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"3. ";color:rgb(0,0,0)">
<span style="display:inline!important;background-color:rgb(255,255,255)">Plugging the same battery (B1) into the other regulator (R0) that has always been in the plane into channel 8, both rudder and elevator we fine.</span></li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"4. ";color:rgb(0,0,0)">
<span style="display:inline!important;background-color:rgb(255,255,255)">Moving from channel 8 to 7 (R0),
</span><span style="display:inline!important;background-color:rgb(255,255,255)">both rudder and elevator we fine</span><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">.</span><br>
</li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"5. ";color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">I repeated steps 1 & 2, <span style="display:inline!important;background-color:rgb(255,255,255)">the
rudder kept sweeping back and forth. The elevator was fine.</span></span></li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"6. ";color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">Grabbing the OTHER regulator
(R2) from the backup plane and repeating steps 1-4 above yielded the same results. </span></span></li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"7. ";color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">I removed the regulator
(R2), leaving the original (R0) and the original backup (R1) in the plane</span></span></li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"8. ";color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">Hooking up a second battery
(B2) and cycling back and forth between the two regulators, once switch at a time, there we no issues.</span></span></li><li style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;list-style-type:"9. ";color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">There were also no issues
with both packs on at the same time</span></span></li></ol>
<div>Based on the above, the problem did not follow anything in particular.</div>
<div><br>
</div>
<div>B1 + R1 + 7 = <span style="color:rgb(237,92,87)"><b>X</b></span> (rudder sweep)</div>
<div><span style="display:inline!important;background-color:rgb(255,255,255)">B1 + R1 + 8 =
</span><span style="display:inline!important;color:rgb(237,92,87);background-color:rgb(255,255,255)"><b>X</b></span><br>
</div>
<div><span style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;margin:0px;display:inline!important;color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">B1
+ R0 + 7 = </span><span style="display:inline!important;color:rgb(23,78,134);background-color:rgb(255,255,255)"><b>Y</b></span><span style="display:inline!important;background-color:rgb(255,255,255)">
(rudder fine)</span><br>
</span></span></div>
</div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">B1
+ R0 + 8 = </span><span style="display:inline!important;color:rgb(23,78,134);background-color:rgb(255,255,255)"><b>Y</b></span><br>
</span></span></div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">B1
+ R2 + 7 = <b style="color:rgb(237,92,87)">X</b></span><br>
</span></span></span></div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)">B1
+ R2 + 8 = <b style="color:rgb(237,92,87)">X</b></span><br>
</span></span></span></span></div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><span style="display:inline!important;background-color:rgb(255,255,255)"><br>
</span></span></span></span></span></div>
<div style="font-family:Calibri,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">
<div style="font-size:12pt;margin:0px"><span style="margin:0px">B1 + R1 + 7 OR <span style="display:inline!important;background-color:rgb(255,255,255)">B2 + R0 + 8 =
</span><span style="display:inline!important;color:rgb(23,78,134);background-color:rgb(255,255,255)"><b>Y</b></span></span></div>
<div style="font-size:12pt;margin:0px">
<div style="margin:0px"><span style="display:inline!important;background-color:rgb(255,255,255)">B1 + R1 + 8 OR
</span><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">B2 + R0 + 7 =
</span><span style="margin:0px;display:inline!important;color:rgb(23,78,134);background-color:rgb(255,255,255)"><b>Y</b></span><br>
</div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">B1
+ R1 + 8 AND<span> </span></span><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">B2 + R0 + 7 =
</span><span style="margin:0px;display:inline!important;color:rgb(23,78,134);background-color:rgb(255,255,255)"><b>Y</b></span><br>
</span></div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><br>
</span></span></div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">Thoughts??? </span></span></div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><br>
</span></span></div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">Since
this is a Futaba R7008SB receiver, I could ditch the regulators and just go straight into the receiver (did not try that yet).....</span></span></div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><br>
</span></span></div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">Regards,</span></span></div>
<div style="margin:0px"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)"><span style="margin:0px;display:inline!important;background-color:rgb(255,255,255)">Mike
C</span></span></div>
</div>
</div>
</div>
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<a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" rel="noreferrer" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></blockquote></div></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Vicente "Vince" Bortone</div><div><b>NSRCA 1140. Be Proud to show your NSRCA #</b><br></div></div></div>