Discussion Squealing sound at full throttle?

[DonJuan]

I have to ask again since no one is answering me from Castle. When is this problem going to get fixed?

[jvthert]

Don't be surprised if it takes at least a few more weeks. I wonder why they keep adding features to a release that's still in beta... If anything happens they'll probably end up blaming you for using their beta stuff.
Furthermore I stumbled upon some pdf's of the ice controllers on google from Castle that state the ice controllers cannot sustain more than half their rated amps in a non airflow situation. Nice one!

Edit: I can't find the document only this: castlespecialprojects.com/csp_phoenix_ice.html

[bill clark]

I updated to 3.19 yesterday and my s2 3008 1220kv scorpion, 3s, 3y.o. CC P35 is having the sink problem until the battery looses its intial peek (about 30 seconds into flight).low advance and med response is best as stated above. low response i think is better but too doggy. My a50 14s hacker on 5s (older motor, 1 y.o. CC P80) is doing fine.
good luck CC

[DavidN]

I have been waiting for the ICE for an inrunner. Hacker B50 11XL 6.7 GB. ANy issues with innrunners.
Flying season is over here except for small stuff on sunny days, so no rush.

[Patrick del Castillo]

Originally Posted by jvthert

Don't be surprised if it takes at least a few more weeks. I wonder why they keep adding features to a release that's still in beta... If anything happens they'll probably end up blaming you for using their beta stuff.
Furthermore I stumbled upon some pdf's of the ice controllers on google from Castle that state the ice controllers cannot sustain more than half their rated amps in a non airflow situation. Nice one!

Edit: I can't find the document only this: castlespecialprojects.com/csp_phoenix_ice.html

Actually, the ICE can handle full load with no airflow, as long as there is some air space around it -- don't try to bury an ICE in styrofoam and run it at 100%-- but pretty much anything else will work fine at full load.

And why the attitude? We don't blame people for using Beta software -- we post up the Beta software with the understanding that it might not be perfect, and users should handle it as such -- it's not Alpha (untested, unproven,) it's Beta (tested and proven.) There may be minor issues with Beta software, but we want to make it public so that people can try it out -- especially if it adds new features or has some fixes. WE DO expect people to test their system after uploading Beta software to be sure that it works correctly BEFORE flying. To be considered Released software, takes a very very long process of testing. (I come from an Avionics background -- and we take Release software testing VERY seriously!)

Patrick

[DonJuan]

Patrick,
Please help me. I can't use my ICE LITE 50 because it doesn't work with my motor because of the "squealing" problem. My motor is a Torque 2818/900 running with a 4S 2350 Lipo and a 12-6 E prop. Does the ICE LITE 50 really not work with this combination or am I just missing something? If it really doesn't work with this combination when do you think it will be fixed?

[Patrick del Castillo]

Originally Posted by DonJuan

Patrick,
Please help me. I can't use my ICE LITE 50 because it doesn't work with my motor because of the "squealing" problem. My motor is a Torque 2818/900 running with a 4S 2350 Lipo and a 12-6 E prop. Does the ICE LITE 50 really not work with this combination or am I just missing something? If it really doesn't work with this combination when do you think it will be fixed?

Don -- We are finishing the last few rounds of testing on the new software that fixes the issue today. Hopefully, we will have a fully qualified Beta on the web in the next couple of days.

Patrick

[jsmith285]

Glad to hear we are getting close to a fix for the Squealing issue.

[nsg]

Originally Posted by DonJuan

Patrick,
Please help me. I can't use my ICE LITE 50 because it doesn't work with my motor because of the "squealing" problem. My motor is a Torque 2818/900 running with a 4S 2350 Lipo and a 12-6 E prop. Does the ICE LITE 50 really not work with this combination or am I just missing something? If it really doesn't work with this combination when do you think it will be fixed?

I used ICE 50 (not Lite, but that shouldn't matter) with a 2818/900 on 4s in my 3DHS Vyper for a while, and will probably go back to that setup soon. Firmware 2.16 works fine. 2.18 doesn't, but that isn't exactly news.

[DonJuan]

Thank you Patrick. Can't wait to try it.
nsg, Unfortunately 2.16 didn't work for me. Even after changing the setup as Castle suggested. It was much better than 2.18 though.
2.16 caused squealing from about 60 to 80% throttle.
2.18 caused squealing from about 20 to 100% throttle.

[nsg]

DonJuan -

The (mostly default) settings that worked for me:
-fixed endpoints
- normal timing
- 8 KHz PWM.

[DavidN]

When I have compared CC Phoenix 80 to my similar ESC I get consistently higher (1-2) & amps & RPM. So is it pushing the power edge that causes the problem? Or am I just exposing my ignorance.

[Patrick del Castillo]

Originally Posted by DavidN

When I have compared CC Phoenix 80 to my similar ESC I get consistently higher (1-2) & amps & RPM. So is it pushing the power edge that causes the problem? Or am I just exposing my ignorance.

That's a very good point David--

The reason you see a couple more amps, and more RPM from the Castle controller is that we hold timing much tighter than many other controllers.

Many low cost controllers don't have enough computing horsepower to keep timing accurate at high RPM on high pole count motors (like outrunners).

On some low-cost controllers, the timing gets more and more retarded as the RPM goes up. This causes a drop in both power and efficiency as the RPM rises.

So, when upgrading to a Castle controller, you should ALWAYS check the power -- you will likely draw more power, and get more RPM from the motor.

We have seen several cases where motor damage occurs shortly after an upgrade to a Castle controller -- in one case, a system that drew 60 amps on a low-cost controller drew almost 100 amps using a Castle controller. The customer was thrilled until the magnets on the motor came loose under full power and the motor was destroyed.

So -- ALWAYS use caution and make sure your system does not exceed the maximum power that the motor is designed to handle after upgrading to a Castle controller. If necessary, you should go down a bit on prop size (or gearing on a helicopter) to reduce the current draw on the system to a reasonable level.

That said -- the new software to be released later this week will allow even higher power to be extracted from outrunners and other high-pole-count motors than was previously possible. So, people will need to be VERY careful with their systems, and make sure they don't over-amp their motors.

[Clintstone]

Originally Posted by DonJuan

Took my ICE 50 out. Put in my old Phoenix 45 with external Castle BEC and everything works just fine now. I want to use the ICE LITE 50 and I have faith that they will fix it. However, this is very disappointing and frustrating. I fly ARFs, I want to put it together and fly, not download software, swap ESCs and hope it works. This is supposed to be my liesure time. I want Castle to tell me that an ICE LITE 50 works perfectly with a Torque 2818/900 spinning a 12-6 E prop on a 4S system BEFORE I put it back in my 48" plane. Can you guys do that for me Patrick?

I have run mine on the ICE 50 with that same setup. 2.16 works fine for me with that setup.

[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.