Gouvernor mode on ESC for 3D PRO

[mplourde]

Hi,

Do you use the " gouvernor " mode on your ESC or you prefert to use commontly control curve????

Thanks...

[flyinfool]

At the moment I am using gov mode.
Once I get things set up a little better and used to the way this thing flies, I will experiment with curves.

[Coolice]

Hey,

Your better off using govenor mode if you can, that way the rotor rpm will stay constant. Having said that some ESC's govenor modes are better than others and this will dictate perhaps whether you use it or not.

In my PRO I am using a Quark 23A ESC which has a nice govenor mode and copes well with pitch changes.
.

[mplourde]

Ok. thanks... I'm using a Phoenix 25 and the governor mode on that is poor.... The motor don't stop to go in up and down in RPM. It's like the phoenix 25 can't stabilize the current... :( :shock: :?: :?:

[Coolice]

Hey,

No problems, your welcome.

From the sounds of it your motor rpm is almost hunting in flight, how have you set the throttle curves? In govenor mode you need to have an almost straight line.
I have found sometimes in normal mode on the Tx. you need to have a very steep throttle curve that peaks just before hover point (mid stick) so that small pitch changes do not take the ESC out of govenor mode.
The best option is to use Normal mode to just allow the rotors to spoolup slowly and then once in flight flip into IdleUp1 which has a staright line to maintain the rotor RPM.
.

[mplourde]

Ok thanks!!!

In normal mode, all of point is the same!!! 40% on each point. On Idle up 1, all of my point ar at 50%. So, I'm having some hunting on Normal mode but not on Idle up 1.... Maybe it has a diff. between the Normal prog vs Idle up 1 prog. on my Futaba 9C :!: :!: :!:

[Coolice]

Hey,

You may find your throttle points are a little low, at these sort of values the ESC will not be running at it's optimum point and hence may be getting hotter than it should be. It's always said that an ESC needs to be run in the 80% & upwards values to be running efficiently.

I have found & read myself at various places that sometimes running a higher head speed can actually help make the tail more stable, even with the same gain setting. This could be the case in your instance to, as you have proved by running 50% throttle.
Perhaps some testing is required?
.

[mplourde]

I'll will check my head speed with 50% on each point and if is not enough high, i will speed up my head speed with taking care to do not reach 3000 RPM ... critical speed on 3D PRO...

Thanks....