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<DIV><FONT size=2 face=Arial>The idle current of 0.16A is about as high as your
avwerage current for model in flight should be. Something is
binding.</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=cchariandy@yahoo.ca href="mailto:cchariandy@yahoo.ca">colin
chariandy</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</A>
; <A title=glmiller3@suddenlink.net
href="mailto:glmiller3@suddenlink.net">glmiller3@suddenlink.net</A> ; <A
title=ed_alt@hotmail.com href="mailto:ed_alt@hotmail.com">Ed Alt</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, April 28, 2009 12:04
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] JR DSM
glitch - trouble-shooting.</DIV>
<DIV><BR></DIV>
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<DIV>Just tried the same using the regulator from my back-up (same
except not switched) and a new throttle servo.</DIV>
<DIV> </DIV>
<DIV>Throttle servo amps increased to 0.35A max.</DIV>
<DIV> </DIV>
<DIV>Although the package was labelled 6.0V the output is 5.7V and min
output was 5.5V.</DIV>
<DIV> </DIV>
<DIV>After a minute of servo wagging it was hotter than the original.
<BR><BR>--- On <B>Mon, 4/27/09, colin chariandy <I><<A
href="mailto:cchariandy@yahoo.ca">cchariandy@yahoo.ca</A>></I></B>
wrote:<BR></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From:
colin chariandy <<A
href="mailto:cchariandy@yahoo.ca">cchariandy@yahoo.ca</A>><BR>Subject:
Re: [NSRCA-discussion] JR DSM glitch - trouble-shooting.<BR>To:
"General pattern discussion" <nsrca-discussion@lists.nsrca.org>,
glmiller3@suddenlink.net, "Ed Alt"
<ed_alt@hotmail.com><BR>Received: Monday, April 27, 2009, 9:22
PM<BR><BR>
<DIV id=yiv534656017>
<TABLE border=0 cellSpacing=0 cellPadding=0>
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<DIV>Ok, although this is a 1 year old airplane with 150 flights
I checked the current draw after the regulator with all servos
energized and the engine off.</DIV>
<DIV> </DIV>
<DIV>I used a "watts up" meter that logs peaks (but I'm not sure
what the sampling fequency is).</DIV>
<DIV> </DIV>
<DIV>Idle current - 0.16A.</DIV>
<DIV>Throttle servo movement max - 0.25A (doesnt seem
like a problem but it's a little more noisy than a new
one).</DIV>
<DIV>All other servos - 0.22-0.24 A max.</DIV>
<DIV>Moving all servos together rapidly - 1.72A max.</DIV>
<DIV>Regulator output min - 5.82V</DIV>
<DIV> </DIV>
<DIV>I did this (moved all the servos rapidly for 1 min)
and checked the little heat sink at the end of the regulator
chip...quite warm, almost hot.</DIV>
<DIV> </DIV>
<DIV>I may try this again with the engine running and compare
the results.</DIV>
<DIV> </DIV>
<DIV>Colin.<BR><BR>--- On <B>Mon, 4/27/09, Ed Alt
<I><ed_alt@hotmail.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From:
Ed Alt <ed_alt@hotmail.com><BR>Subject: Re:
[NSRCA-discussion] JR DSM glitch - trouble-shooting.<BR>To:
"General pattern discussion"
<nsrca-discussion@lists.nsrca.org>, "colin chariandy "
<cchariandy@yahoo.ca>,
glmiller3@suddenlink.net<BR>Received: Monday, April 27, 2009,
6:24 PM<BR><BR>
<DIV class=plainMail>This is easy to resolve. Nothing
high tech is needed. One by one, move your controls and
carefully watch to see if it looks like the any of them are
straining at the end of their maximum travel. Check the
throttle in particular. I have seen digital servo cases
melt from having the throw set up further than the linkage
will allow. If that's not it, disconnect the linkages at
servo and work the control surface by hand. If it does
not move very freely, fix it. If you don't find the
problem there, work the servos around in a 10 minute mock
flight on the ground, except exaggerate the movements
considerably since there will be no air load and engine
vibration to add to the load. Listen to each
servo. If it sounds like it's having a problem, remove
it and check it out on the bench. If there's nothing
obviously wrong by the sound of things, then feel the servo
cases to see if any of them are getting warm, or even
try smelling them for that characteristic smell that hot
electronics tend to have. If there is a regulator that
got so hot as to discolor it, and there is nothing at all
wrong with the linkages or control surfaces, then this ought
to find the culprit.<BR><BR>Ed<BR>----- Original Message -----
From: "David Cotton " <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=davercotton@hotmail.com"
rel=nofollow
target=_blank>davercotton@hotmail.com</A>><BR>To: "colin
chariandy " <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow target=_blank>cchariandy@yahoo.ca</A>>; <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
rel=nofollow
target=_blank>nsrca-discussion@lists.nsrca.org</A>>; <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow
target=_blank>glmiller3@suddenlink.net</A>><BR>Sent:
Monday, April 27, 2009 6:09 PM<BR>Subject: Re:
[NSRCA-discussion] JR DSM glitch -
trouble-shooting.<BR><BR><BR>You will need a very good meter
to read the current, because a fully loaded digital setup
takes the current in short spikes and most meters do not have
a good enough frequency response. I have tried using a very
good quality HP meter with over 20k frequency response and
concluded it's not accurate, but it does give you a ball park
number and will indicate if you have a serious problem. I have
monitored my receiver voltage using a FDR data recorder and
using two nimh batteries pack in parallel see at least one
volt drop spikes at the receiver when the servos are heavily
loaded. I run 2 20amp schottky diode connected
packs in parallel for safety. You can be sure that these
spikes are 5amps or more. I placed a Castel reg in
the circuit and it drops the spikes to a few hundred
millivolts<BR><BR>The average current draw is around 250 mA
for 2 masters sequences.<BR><BR>Hope this helps. Incidentally
the regulator does not get hot.<BR>Sent via BlackBerry by
AT&T<BR><BR>-----Original Message-----<BR>From: colin
chariandy <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow
target=_blank>cchariandy@yahoo.ca</A>><BR><BR>Date: Mon, 27
Apr 2009 20:40:21<BR>To: <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
rel=nofollow
target=_blank>nsrca-discussion@lists.nsrca.org</A>>; <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow
target=_blank>glmiller3@suddenlink.net</A>><BR>Subject: Re:
[NSRCA-discussion] JR DSM glitch -
trouble-shooting.<BR><BR><BR>Yes.<BR><BR>I can't find by
physical inspection any "wacked out servos" or other issues
that might cause increased current load on the regulator.
So....I'm trying to find the typical (or average) current that
should be seen at any moment (instant) on a meter in-line with
the regulator. Then I'll run my set-up and compare. If I'm in
the ball park (less than 1A based on a couple of inputs so
far) then the problem is not related to "wacked out" servos,
binding etc.<BR><BR>Colin<BR><BR>--- On Mon, 4/27/09, Ed Alt
<<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=ed_alt@hotmail.com"
rel=nofollow target=_blank>ed_alt@hotmail.com</A>>
wrote:<BR><BR>From: Ed Alt <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=ed_alt@hotmail.com"
rel=nofollow
target=_blank>ed_alt@hotmail.com</A>><BR>Subject: Re:
[NSRCA-discussion] JR DSM glitch - trouble-shooting.<BR>To: <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
rel=nofollow
target=_blank>nsrca-discussion@lists.nsrca.org</A>, <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow
target=_blank>glmiller3@suddenlink.net</A><BR>Received:
Monday, April 27, 2009, 3:25 PM<BR><BR><BR>Average current is
not the same as instantaneous current, unless the only current
being drawn was just for that single instant in time. Anyway,
I will repeat, with an added quailifer, for the sake of
understanding for where to look to help you solve the
problem:<BR><BR>If you are using a JACCIO, Tech-Aero, or
whatever regulator in a pattern setup, even with a YS CDI on a
shared output, and if you find that you need a heat sink,
then:<BR><BR><BR>Something Else Is Wrong. Check your setup for
binding linkages, stiff hinges, whacked out servos,
whatever.<BR><BR>Seriously, check your setup, OK? Just trying
to help
here.<BR><BR>Regards<BR>Ed<BR><BR><BR>----------------<BR>Date:
Mon, 27 Apr 2009 10:32:54 -0700<BR>From: <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow target=_blank>cchariandy@yahoo.ca</A><BR>To: <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
rel=nofollow
target=_blank>nsrca-discussion@lists.nsrca.org</A>; <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow
target=_blank>glmiller3@suddenlink.net</A><BR>Subject: Re:
[NSRCA-discussion] JR DSM glitch -
trouble-shooting.<BR><BR><BR><BR>Actually, if you consumed
200mAhr in 0.25hrs, then your average (instantaneous) current
was 800mA.<BR><BR>Colin.<BR><BR>--- On Mon, 4/27/09, <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow target=_blank>glmiller3@suddenlink.net</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow target=_blank>glmiller3@suddenlink.net</A>>
wrote:<BR><BR>From: <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow target=_blank>glmiller3@suddenlink.net</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=glmiller3@suddenlink.net"
rel=nofollow
target=_blank>glmiller3@suddenlink.net</A>><BR>Subject: Re:
[NSRCA-discussion] JR DSM glitch - trouble-shooting.<BR>To:
"General pattern discussion" <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
rel=nofollow
target=_blank>nsrca-discussion@lists.nsrca.org</A>><BR>Cc:
"colin chariandy" <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow
target=_blank>cchariandy@yahoo.ca</A>><BR>Received: Monday,
April 27, 2009, 12:34 PM<BR><BR><BR>Colin,<BR><BR>I'm running
a different ignition system, but total consumption radio and
ignition) for an entire 15 minute flight is about 200 mah..200
X4 = 800 milliamps for an hour= 0.8 amps per hour So the
instantaneous current shouldn't be much.<BR><BR>G<BR><BR>----
colin chariandy <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow target=_blank>cchariandy@yahoo.ca</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow
target=_blank>http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca</A>>
> wrote:<BR><BR>=============<BR>Does anyone know what the
current consumption should be at idle/run-up for a typical
YS170/Hyde/all digital servos installation?<BR><BR>I'll stick
a Watt's Up meter in there to see how much I'm pulling after
the regulator.<BR><BR>Jim, what's the current limit for
continuous operation and spike/inrush for your
regulator?<BR><BR>Colin.<BR><BR>--- On Sun, 4/26/09, James
Oddino <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=joddino@socal.rr.com"
rel=nofollow target=_blank>joddino@socal.rr.com</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=joddino@socal.rr.com"
rel=nofollow
target=_blank>http://ca.mc313.mail.yahoo.com/mc/compose?to=joddino@socal.rr.com</A>>
> wrote:<BR><BR><BR>From: James Oddino <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=joddino@socal.rr.com"
rel=nofollow target=_blank>joddino@socal.rr.com</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=joddino@socal.rr.com"
rel=nofollow
target=_blank>http://ca.mc313.mail.yahoo.com/mc/compose?to=joddino@socal.rr.com</A>>
><BR>Subject: Re: [NSRCA-discussion] JR DSM glitch -
trouble-shooting.<BR>To: <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow target=_blank>cchariandy@yahoo.ca</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow
target=_blank>http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca</A>>
, "General discussion" <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
rel=nofollow
target=_blank>nsrca-discussion@lists.nsrca.org</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org"
rel=nofollow
target=_blank>http://ca.mc313.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org</A>>
><BR>Received: Sunday, April 26, 2009, 4:00 PM<BR><BR><BR>I
don't believe a bad battery could cause the engine to rev up
unless your battery failsafe isn't set properly. Make sure it
is.<BR><BR><BR>The first thing I would look at is the
possibility that the throttle servo is stalled at low speed.
That could be pulling the battery/voltage regulator voltage
down and it could recover after you started to throttle up and
removed the heavy load.<BR><BR><BR>Finally I would run a one
amp discharge test on the battery after it is fully charged to
see if the battery is near its original capacity. The best way
to do this is to plot the voltage vs. time taking readings
every 5 to 10 minutes.<BR><BR><BR>Hope this helps. Let us know
what you find.<BR><BR><BR>Jim<BR><BR><BR><BR><BR><BR>On Apr
25, 2009, at 4:30 PM, <A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow target=_blank>cchariandy@yahoo.ca</A> <<A
href="http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca"
rel=nofollow
target=_blank>http://ca.mc313.mail.yahoo.com/mc/compose?to=cchariandy@yahoo.ca</A>>
wrote:<BR><BR><BR><BR><BR><BR><BR><BR>I had a close call today
with my R921 Rx in an Integral.<BR><BR>I noticed on taxi out
that the engine rev'd up and quickly back down without any
command. At first I thought I must have bumped the stick by
accident. Then just before take-off there was no responce from
the throttle for a second or two then it was back. I thought
the 170 may have loaded up a little and didnt respond. It did
that one more time before I aborted the flight. However, I
could'nt reproduce the problem in the pits.<BR><BR>Before
powering down, I checked for holds or fades on the data logger
- nil.<BR><BR>Battery voltage droped from 8.2V to 7.8V and 7.6
under 1A load. When I re-charged it took 350mA and I was only
on for 3-4 mins.<BR><BR>Now...I did accidentally run the
battery down to like 5V during winter but it did eventually
recharge.<BR><BR>I'm using a Jaccio perfect switch/6V
regulator, Jaccio 2000mAHr (1 season<BR><BR><BR><BR>The new
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