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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Ed,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Snaps and abrupt throttle movements can
cause very brief current spikes easily missed by loggers (but are usually
noticed if logging rate is 10x per second or higher). I set my CC ESC to
insensitive for the current limiting, and I’ve not experienced the over
current beep. Odds are with high power systems that if something goes wrong, it
will happen very quickly and cause damage before the ESC can react.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The PWM setting “OR” will
initially use 8khz switching and then auto adjust based on feedback to the ESC
from the motor. I’ve just started playing with the OR setting, and on
some setups, it may improve idle, run the motor more smoothly (less resonance),
and increase efficiency. On other setups, it may not make any noticeable
difference.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Dave Lockhart, <st1:place w:st="on"><st1:PlaceName
w:st="on">Team</st1:PlaceName> <st1:PlaceType w:st="on">Castle</st1:PlaceType></st1:place><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Ed White<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, June 06, 2009 6:01
PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">General
pattern discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [NSRCA-discussion]
Another HV-85 question</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2
face="Times New Roman"><span style='font-size:10.0pt'>BTW, I'm new to electric
pattern so sorry if this has been discussed and I missed it.<br>
<br>
I've had one, and only one, flight out of at least 40 where I landed and the
HV-85 was beeping an over current alarm (3 beeps). Only happened once and
my data logger said it was a normal flight, max of 64 amps (but my data logger
is filtered and averaged so it would miss a spike). Same batteries, same
prop, same everything. The maH used and put back in on the next charge
were completely normal. I had the current limiting set to
insensitive. I emailed Castle and got this response:<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Turn your current
limiting to disabled, as you should in F3A planes. <o:p></o:p></span></font></p>
<pre><font size=2 face="Courier New"><span style='font-size:10.0pt'>Joe Ford<br>
<br>
Product Specialist<br>
<br>
<span class=yshortcuts><span style='cursor:pointer' id="lw_1244324899_2">Castle Creations</span><br>
<br>
<br>
<o:p></o:p></span></font></pre></span>
<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>Are other people disabling their current limits? I've only had
the one flight where the HV-85 said there was an over current and I couldn't
hear or tell anything in the flight that was any different from any other
flight. I did disable the over current but am having second
thoughts. I couldn't tell that it ever had any effect, even on that one
flight. If it doesn't have any effect, it sounds like a little extra
protection. I'm tempted to go back to insensitive.<br>
<br>
Ed<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Ed White
<edvwhite@yahoo.com><br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">General
pattern discussion</st1:PersonName> <nsrca-discussion@lists.nsrca.org><br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, June 6, 2009
4:45:55 PM<br>
<b><span style='font-weight:bold'>Subject:</span></b> [NSRCA-discussion] HV-85
PWM Outrunner Mode</span></font><o:p></o:p></p>
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<div>
<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>I've been using the new version 2.12 firmware for few weeks. Last
night I discovered that under PWM there is a new setting called "Outrunner
Mode". I tried it today and really liked it. The throttle
response felt smoother. The ESC was not warm after the flights and I
think it cut my amps a little. <br>
<br>
Anybody else have any experience with this?<br>
<br>
Running a Dualsky 12T and have both Zippy packs and TrueRC(one 10C and one
15C). At first I thought the TrueRC had a little more top end
power. Now I can't tell a difference. Perhap the Zippys seem to
need more break-in. I've got 11 or 12 flights each on two packs and they
just seem to be getting better. Internal resistance readings are running
well below 5 mohms on all twenty cells, many cells below 4 mohms on any
charge. IR seems to vary depending on how much charge is put in
them. Have had a charge were all 10 cells were below 3 mohms.<br>
<br>
Was going to post some data on Chris' website after I got a few more flights on
them.<br>
<br>
Ed<o:p></o:p></span></font></p>
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