Squealing sound at full throttle? - Page 3

Patrick del Castillo · Nov 05, 2009, 10:56 AM

Quote:

Originally Posted by DavidN

Patrick there was a thought behind my post. The possibilty of a fall back lower power safe program to use till the final versions work out. I realize this is impractical at this development stage. But maybe a strategy for a new rollout.

David,

Well, that's kind of what the ICE is all about -- there is built-in current protection if people wish to use it.

DavidN · Nov 05, 2009, 11:07 AM

would that stop the Squealing?

scallybert · Nov 05, 2009, 11:10 AM

Quote:

Originally Posted by Patrick del Castillo

Well, that's kind of what the ICE is all about -- there is built-in current protection if people wish to use it.

Which sort of prompts the response 'why would anyone not wish to use it..?'

IIRC, 'insensitive' current protection is recommended for helis. Is this still the case ? Does this still provide adequate protection ?

Patrick del Castillo · Nov 05, 2009, 11:48 AM

Quote:

Originally Posted by scallybert

Which sort of prompts the response 'why would anyone not wish to use it..?'

IIRC, 'insensitive' current protection is recommended for helis. Is this still the case ? Does this still provide adequate protection ?

With the ICE, you can setup a maximum current, in amps. This is different than the "standard" current limiting.

scallybert · Nov 05, 2009, 12:06 PM

Quote:

Originally Posted by Patrick del Castillo

With the ICE, you can setup a maximum current, in amps. This is different than the "standard" current limiting.

Cool. So it can be set to protect the packs & motor - not just the ESC.

Patrick del Castillo · Nov 05, 2009, 01:20 PM

Quote:

Originally Posted by scallybert

Cool. So it can be set to protect the packs & motor - not just the ESC.

Exactly. You shouldn't try to use it to run a "bad" setup -- full throttle current should be below the rating of the motor, esc AND batteries, but it can protect things quite well when something bad happens.

So, always set up your system within the specifications of the components, and don't try to use the current limiting to protect sub-par components.

MrE · Nov 05, 2009, 02:31 PM

I would highly recommend that Patrick's comments in posts 28, 34, 36 about how the new software allows more power to be made a sticky AND post it on the web site as an up-grade note/warning.

Lots of guys wont believe or understand whats happening but they need to be warned anyway.

coy · Nov 07, 2009, 08:14 AM

Hi,

i've experienced the same "squealing" while checking my new motor (HS2220-3500) with a phoenix 45 on my Mini Titan heli.

For testing, on the remote i manually raised the throttle in governor mode starting from 0. At some rpm rates this squeling appeared very loud, but when going to higher (desired) rpm it disappears.

Software version is the latest (2.18). Timing is already low, PWM rate is 12KHz.

Should i change any settings? Is it safe to fly with this firmware version at all?

(sorry if my english is not 100% accurate - i am from Germany :-)

Regards
Markus

nsg · Nov 07, 2009, 08:50 AM

Markus - I'd go back to 2.16

Manta1 · Nov 08, 2009, 11:35 AM

Quote:

Originally Posted by Patrick del Castillo

With the ICE, you can setup a maximum current, in amps. This is different than the "standard" current limiting.

hmmm i wasnt aware of this.this is neat.we may need to chat

Staggerflyer · Nov 08, 2009, 04:35 PM

Not having flown in over two months, and just updating my software/firmware to 2.16 from 1.56, not knowing about this squealing problem, and using lower C rating batteries, I didn't experience any squealing, instead my motor kept cutting out (current limiting?) at half throttle. It did NOT do this until the update to 2.16.

My system: Great Planes P-6E Hawk ARF, 15 lbs AUW. EFlite Power110, Phoenix 85HV, Common Sense 6000mah 8C 18.5v x 2,(as 10S), 18x10 MenZ wood prop. First couple flights flown using Master Airscrew 16x10x3blade prop. Max amps pulled on ground 47amps.

New aircraft this past spring, only flown maybe 1/2 dozen flights. Full throttle hit maybe 5-6 times on original set-up. Then only for 2-3 seconds at a time. No problems encountered. Then updated firmware to 2.16 (Link software was 3.16) and then, for first time, motor would cut out at about 55% throttle, ground or air. Cut-off is set as hard, so returned throttle to idle and had power again. Since plane needs only 45-50% throttle for full flight regime, was able to fly it for show put on for Veterans Home by our local club.

I've since purchased new Impulse 18.5v 20C 4800mah batteries, and now I have the squeal at just over half throttle that is being dicussed on multiple threads here and elsewhere. Going to full throttle does NOT reduce/change it. It will do this with or without prop installed, so it is NOT over propped.

I also have a Top Flight Staggerwing with EFlite Power 160, Phoenix 110HV with 1.56 firmware, using same batteries, and no problem. I switched ESCs to see what would happen, and the squeal followed the ESC from plane to plane, so it is definitely the software!

Still waiting for the new software to come out, so I can fix these problems, I hope.

cmulder · Nov 08, 2009, 07:45 PM

if anyone wants to sell there ice 50 send me a pm

dgfinch · Nov 13, 2009, 01:10 PM

I see a new firmware update for the ICE. Anybody know if that is the squeal fix?

Patrick del Castillo · Nov 13, 2009, 01:22 PM

Quote:

Originally Posted by dgfinch

I see a new firmware update for the ICE. Anybody know if that is the squeal fix?

Yes, this is the squeal fix.

DavidN · Nov 13, 2009, 01:23 PM

Please how it is working out there in the trenches

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Nov 05, 2009, 11:07 AM	#32
DavidN "Do it with batteries" Join Date: Dec 2000 Location: Vernon, BC, Canada Posts: 1,319	would that stop the Squealing?

Nov 05, 2009, 02:31 PM	#37
MrE Registered User Join Date: Aug 2007 Posts: 44	I would highly recommend that Patrick's comments in posts 28, 34, 36 about how the new software allows more power to be made a sticky AND post it on the web site as an up-grade note/warning. Lots of guys wont believe or understand whats happening but they need to be warned anyway.

Nov 07, 2009, 08:14 AM	#38
coy Registered User Join Date: Nov 2009 Posts: 1	Hi, i've experienced the same "squealing" while checking my new motor (HS2220-3500) with a phoenix 45 on my Mini Titan heli. For testing, on the remote i manually raised the throttle in governor mode starting from 0. At some rpm rates this squeling appeared very loud, but when going to higher (desired) rpm it disappears. Software version is the latest (2.18). Timing is already low, PWM rate is 12KHz. Should i change any settings? Is it safe to fly with this firmware version at all? (sorry if my english is not 100% accurate - i am from Germany :-) Regards Markus

Nov 07, 2009, 08:50 AM	#39
nsg Registered User Join Date: Sep 2006 Location: Yardley, PA Posts: 1,670	Markus - I'd go back to 2.16

Nov 08, 2009, 04:35 PM	#41
Staggerflyer Registered User Join Date: Dec 2007 Location: Tama, Iowa USA Posts: 62	Not having flown in over two months, and just updating my software/firmware to 2.16 from 1.56, not knowing about this squealing problem, and using lower C rating batteries, I didn't experience any squealing, instead my motor kept cutting out (current limiting?) at half throttle. It did NOT do this until the update to 2.16. My system: Great Planes P-6E Hawk ARF, 15 lbs AUW. EFlite Power110, Phoenix 85HV, Common Sense 6000mah 8C 18.5v x 2,(as 10S), 18x10 MenZ wood prop. First couple flights flown using Master Airscrew 16x10x3blade prop. Max amps pulled on ground 47amps. New aircraft this past spring, only flown maybe 1/2 dozen flights. Full throttle hit maybe 5-6 times on original set-up. Then only for 2-3 seconds at a time. No problems encountered. Then updated firmware to 2.16 (Link software was 3.16) and then, for first time, motor would cut out at about 55% throttle, ground or air. Cut-off is set as hard, so returned throttle to idle and had power again. Since plane needs only 45-50% throttle for full flight regime, was able to fly it for show put on for Veterans Home by our local club. I've since purchased new Impulse 18.5v 20C 4800mah batteries, and now I have the squeal at just over half throttle that is being dicussed on multiple threads here and elsewhere. Going to full throttle does NOT reduce/change it. It will do this with or without prop installed, so it is NOT over propped. I also have a Top Flight Staggerwing with EFlite Power 160, Phoenix 110HV with 1.56 firmware, using same batteries, and no problem. I switched ESCs to see what would happen, and the squeal followed the ESC from plane to plane, so it is definitely the software! Still waiting for the new software to come out, so I can fix these problems, I hope.

Nov 08, 2009, 07:45 PM	#42
cmulder Registered User Join Date: Apr 2001 Location: Ireland Posts: 1,743	if anyone wants to sell there ice 50 send me a pm

Nov 13, 2009, 01:10 PM	#43
dgfinch Registered User Join Date: May 2007 Location: Stone Mountain, GA Posts: 45	I see a new firmware update for the ICE. Anybody know if that is the squeal fix?

Nov 13, 2009, 01:23 PM	#45
DavidN "Do it with batteries" Join Date: Dec 2000 Location: Vernon, BC, Canada Posts: 1,319	Please how it is working out there in the trenches