[NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC

Sat Mar 17 09:53:45 AKDT 2012

At the RPM pattern outrunners typically run, I think even the cheapest ESCs
have plenty of overhead in terms of commutation rate.  Certainly the
commutation rate of the Jeti is more than enough to handle 6500 +/- RPM on
the 30-10.

Regards,

Dave

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Robert
Campbell
Sent: Thursday, March 15, 2012 9:38 AM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC

My suggestion to limit throttle isn't to limit current draw.  It's to limit
the motor RPM's so the ESC can remain synchronized with the motor.  If the
motor turns faster than the ESC can handle, the motor will begin screeching.
I've only seen this on outrunners, never inrunners.

Rob

----- Original Message ----- 

From: Bob Richards <mailto:bob at toprudder.com>  

To: General pattern discussion <mailto:nsrca-discussion at lists.nsrca.org>  

Sent: Thursday, March 15, 2012 7:55 AM

Subject: Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC

That was my thought. I don't understand why one would want to limit the
throttle to something less than full. Why not install a prop that loads the
motor less?

Bob R.

--- On Thu, 3/15/12, Peter Vogel <vogel.peter at gmail.com> wrote:

From: Peter Vogel <vogel.peter at gmail.com>
Subject: Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Cc: "General patterndiscussion" <nsrca-discussion at lists.nsrca.org>
Date: Thursday, March 15, 2012, 12:15 AM

Limiting throttle does NOT limit current to the motor, in fact, it can cause
higher current draw.  All throttle does is vary the on vs off cycle during
which voltage is sent to the motor. 

Peter+

Sent from my iPhone4S

On Mar 14, 2012, at 7:29 PM, "Robert Green" <robcase1 at cox.net
<http://us.mc1616.mail.yahoo.com/mc/compose?to=robcase1@cox.net> > wrote:

Hi Rob, the Static amps on the ground is 81 amps.  My throttle is limited to
85 percent.  Even changed out the speed controller and the same thing
happened.   Really wish i knew what was going on?

  _____  

From: nsrca-discussion-bounces at lists.nsrca.org
<http://us.mc1616.mail.yahoo.com/mc/compose?to=nsrca-discussion-bounces@list
s.nsrca.org>  [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
Robert Campbell
Sent: Wednesday, March 14, 2012 9:18 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC

Robert,

Which Jeti are you running?  Advance or Spin?  Just a guess, but all the
outrunners I've run require low timing advance and some require fixed end
points and the throttle to be limited to 70 percent or so.  Also, have your
checked your set-up on a watt meter?  Sometimes our set-ups pull more
current than we were expecting and the ESC over current protection kicks in.

Hope this helps.

Rob

----- Original Message ----- 

From: Robert Green
<http://us.mc1616.mail.yahoo.com/mc/compose?to=robcase1@cox.net>  

To: 'General pattern discussion'
<http://us.mc1616.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.
org>  

Sent: Wednesday, March 14, 2012 8:19 PM

Subject: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC

Is anyone out there running this combo.  Went flying today, and had some
issue with the speed controller cutting out when i was setting up for my
approach into the pattern.  I was pulling up and advanced the throttle to do
an reverse cuban eight to get into my pattern, when the motor suddenly quit.
I pulled the throttle back and advanced it once again and the motor came
back it did this on every flight except the first flight where i had no
issues whatsoever.  my setting are high timing for the motor, low cut off
voltage, acceleration high, 

thnaks in advance 

  _____  

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