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

Fri Mar 16 07:30:17 AKDT 2012

I remember a few years ago I had to send in all of my Hitec servos for a
resistor change after buying a 14 channel Futaba receiver.
.
It was VERY frustrating trying to dig out of Futaba (whoever the rep is on
RCU) what should have been a very simple upfront explanation of "hey, we
changed to a lower pulse voltage, BTW - we knew it would screw up your
other stuff, Sorry (but not really, hehe)", instead all they would say is
"it works with Futaba servos, so we don't give a crap about what your
problem is with other people's equipment."
.
Of course I'm paraphrasing that last quote, but you guys get the idea . .
.

Keith Hoard
Collierville, TN
khoard at gmail.com

On Fri, Mar 16, 2012 at 10:18 AM, ehaury <ejhaury at comcast.net> wrote:

> ** ********
> I compared the servo pulse amplitude of the 6008HS (0.64v) and the 7008SB
> (0.32v) RXs. That's a significant difference, while Futaba servos are
> designed to work at that level, other stuff isn't. That's likely the issue
> with your ESC.
>
> Earl
>
> ----- Original Message -----
> *From:* Robert Green <robcase1 at cox.net>
> *To:* 'General pattern discussion' <nsrca-discussion at lists.nsrca.org>
> *Sent:* Friday, March 16, 2012 8:44 AM
> *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC
>
>  Thanks Earl i was told that someone else in **Europe** was experiencing
> similar problems with theirs as well.  Hope they can get it resloved.****
>
> ** **
>  ------------------------------
>
> *From:* nsrca-discussion-bounces at lists.nsrca.org [mailto:
> nsrca-discussion-bounces at lists.nsrca.org] *On Behalf Of *ehaury
> *Sent:* Friday, March 16, 2012 8:27 AM
> *To:* **General pattern discussion**
> *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC****
>
> ** **
>
> Suggest you give Futaba service / Steve Kaluf a call. It may be that the
> RX pulse rise is a little low for the ESC. Futaba have, in the past at
> least, used a lower pulse amplitude than some others which resulted in
> strange results when mixing servos on occasion. If this is the case, the
> problem is more compatibility with the ESC than RX defect, still annoying
> though.****
>
>  ****
>
> Earl****
>
>  ****
>
>  ****
>
>  ----- Original Message ----- ****
>
> *From:* Robert Green <robcase1 at cox.net> ****
>
> *To:* 'General pattern discussion' <nsrca-discussion at lists.nsrca.org> ****
>
> *Sent:* Friday, March 16, 2012 7:42 AM****
>
> *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC****
>
> ** **
>
> Ed, I don't like it either I mat try a ferrite ring, as I like the
> telemetry feature on the tx from the rx.  Anyone else using the 18MZ
> receiver seeing any issues with the motor cutting out?****
>
> ** **
>  ------------------------------
>
> *From:* nsrca-discussion-bounces at lists.nsrca.org [mailto:
> nsrca-discussion-bounces at lists.nsrca.org] *On Behalf Of *Ed White
> *Sent:* Friday, March 16, 2012 6:56 AM
> *To:* **General pattern discussion**
> *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC****
>
> ** **
>
> Robert,
>
> The only way I can think of that this is a receiver problem is that motor
> or ESC noise is being picked up on the ESC lines (any or all) and the 8
> channel Rx is somehow more tolerant of the noise or better able to filter
> it than the other Rx.  I would be uncomfortable at leaving this at - I have
> to use my old receiver.
>
> Ed****
>
> ** **
>  ------------------------------
>
> *From:* Ronald Van Putte <vanputte at cox.net>
> *To:* **General pattern discussion** <nsrca-discussion at lists.nsrca.org>
> *Sent:* Thu, March 15, 2012 10:14:28 PM
> *Subject:* Re: [NSRCA-discussion] Plettenberg 30-10 evo and Jeti ESC
>
> Wait a minute. "The problem was with the receiver." doesn't quite cut it.
>  What was the problem?  ****
>
> ** **
>
> I'm glad you got the problem "solved", but you can't trust that receiver
> until you identify the problem.  BTW, "I don't know" is a perfectly valid
> answer, but you could save somebody else a lot of grief if you know what
> was wrong with the receiver.****
>
> ** **
>
> Ron****
>
>  ****
>
> On Mar 15, 2012, at 8:26 PM, Robert Green wrote:****
>
> ** **
>
> Well I think I found the issue with the Jeti and the Plettenberg.  The
> problem was with the receiver.  I recently got a new radio, and installed
> the new rx in the plane, and then the issue started showing up.  I even
> went and borrowed a Jeti99Spin, to see if this would resolve the issue, but
> it did not, so I started to think of everything that I had changed, and
> decided to go back to my 8 channel receiver and voila, everything is back
> to normal.  Thanks to everyone for there input.  Feels good to have the
> problem behind me****
>
>  ****
>  ------------------------------
>
> *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 8:38 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 <bob at toprudder.com> ****
>
> *To:* General pattern discussion <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@lists.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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