3 beeps or 4 ?

[mjdee14]

OK...Ive read through 32 pages of past threads...Ive watched Bob's videos and one of his links he refers to does not work about the Gaui 50 amp esc.


Does anyone "Know for sure" wich setting is "NON GOV" mode...

I have TWO sets of instruction from the mfgr SAE Electronics.....BOTH are labeled
revision A1.1 no date and one say 3 beeps non-gov...and the other says 4 beeps non-gov...

I know this question has been asked a million times....but for the life of me I can't find a solid answer....I experimented tonight and got a higher rpm with 4 beeps than with 3 so I'm assuming 4 beeps is non gov..!!

Anyone out there know?


Mike D

[worldofmaya]

Hi!
Gaui 50A
Menu 1
1 Beep - - 1 Beeps Lipo
1 Beep - - 2 Beeps NiMH

Menu 2
2 Beep -- 1 Beeps -> Aircraft
2 Beep -- 2 Beeps -> Glider
2 Beep -- 3 Beeps -> Throttle-Curve
2 Beep -- 4 Beeps -> Gov

Have a look at the new manual p12 -> http://www.gaui.com.tw/en/H550_Instruction_Manual.pdf
I like the German manual much more -> http://heli-shop.com/products/26-hurrican_v3_1500w_edition/pdf/HC_ESC_GER.pdf
go to page 16 / last page. There you'll see a great explanation. It's German but you'll understand it...
-klaus

[faxxe]

Its really funny with that ESC from GAUI.
As i bought an early Version of the Hurricane, there was written in the printed Manual: X X - X X X X (4) for GOV

In the same Manual was a yellow correction sheet included with: X X - X X X (3) for GOV

I wrote an Email to GAUI, they send me a pdf manual only for the ESC:

You can find it here:
http://www.rc-heli-fan.org/download.php?id=23680 ---> X X - X X X (3) for GOV
__________________________________________________ __________________________________________

All current Manuals write X X - X X X X (4) for GOV.

Sorry, that i confuse you; but that ESC confuse me.

-heimo

[mjdee14]

Klaus...& heimo

Here we go again......Klaus says 4 beeps GOV and heimo say 3 beeps GOV....

Anyone else have an opinion? maybe 6 beeps?

I did get more rpms from 4 beeps....does that make a difference?

Below is one of the SAE instructions....provided by heimo...if it is the latest one..(they don't date it) then 3 beeps is GOV.

"Who's on First base" ? are you confused, I am...

[Zoobie]

I am with you on this one mike. I have the 75A and I have no clue weather I am in gov or not and I dont have a tach. Is there no way of telling by just flying the heli?

[mjdee14]

I am with you on this one mike. I have the 75A and I have no clue weather I am in gov or not and I dont have a tach. Is there no way of telling by just flying the heli?

I'm not sure, most peoplr run with a fairly flat throt curve, but I played around with my eagletree and it appeared I got more RPM's on 4 beeps than i did on 3 so I'm assuming 4 was curve...and 3 was Gov...

If the mfgr would just put a revision date on the manual...we would now the latest info... too easy I guess.

So far those responding are just using either the Gaui or the SAE paperwork...but both are conflicting.

Mike D

[faxxe]

Me again ;)

I did a test in my rooms (wife & cats get crazy because of the noise):
* Mainblades removed
* A Throttle-Curve with 40% - 0 - 40%
* Motor On
* When Motor turns with 40% several times full Pitch on Tailrotor ( I hold the Tail with my Hand)

With X X - X X X (3) the Motor hold the Rotations (more or less)
With X X - X X X X (4) the Motor decrease Rotations clearly & dramatic

For me its clear: My ESC (50A) need 3 Beeps for GOV Mode.

Regards,
Heimo

[worldofmaya]

Mine uses 4... and I have a log that shows it works :)
How old is your's? Mine is from December, and everything newer should work too. Attempted 3 others when programming their Esc and all of them used 4 and it worked! I think it's pretty easy to find out if it's gov. By the way the new 50A gov has a heat sink...
-klaus

[mjdee14]

So it looks like no matter, we may have two different ESC's out there? One take 4 and one takes 3 beeps....

This is VERY confusing..

Are there any definate tests to determine? set a flat 85% TC and see if it holds it
to max pitch ? I would imagine the Gov mode would try to hold it steadier than the throt curve.

[Pinecone]

Very confusing.

Only thing I can think of is to set the flat throttle curve and using some form of tach (for me an Eagle Tree) and see what the headspeed does as you add pitch. Gov should hold RPM, non-gov should lose headspeed.

I have a 50A that I got last Aug.

This is especially important since, at least with early ones, GOV mode was responsible for cut outs and having to auto.

[worldofmaya]

You're right... set a flat curve. I would take a lower value like 80 or lower. It would be easier to hear the difference. I'm flying with 75% in Gov Mode with ~2000. You can really hear the difference even without full pitch! Using an Esc in Gov with throttle curve could be a big problem. I know that for example a Jazz would shutdown. Perhaps this would be the same with an Gaui Esc.
-klaus

[Merlin.swe]

I read somewere that the GOV kicks in at 80% throttle and above, if that is true then throttle curves below 80% will not make any difference regardless which setting you use...

[worldofmaya]

I don't think so... Idle1 == 1900 -> 70%, Idle2 == 2000 -> 75% with Gaui 50A, Gov Mode, 5s, 14T pinion. It doesn't get warm @ 10°C... I use a MicroPowerV3 with optical tach to check my setup.
-klaus

[Pinecone]

My instructions say that best performance in GOV is with throttle curve flat 75 - 85%.

[mjdee14]

OK...went out flying to day and tried the 4 beeps setting on my Gaui 50 amp.

with the Z20 980kv and a 15t pinion my rpms were all over the place which is telling my 4 beeps is non gov.

On my last pack I switched back to 3 beep setting and the eagle tree showed a smooth rpm line at about 1900 rpms......so I guess for my ESC 3 beeps is GOV.

I swapped out my Gaui 50 for an Align 75 amp and will fly that on Gov, mid timing, and medium start.

What are you guys using for batt setting....midrange or low....low seems way low to me but I usually time my flights and verify mah used with the eagle tree monitor.

Had a good day flying until on one flight my ECO8 fell out of the sky on take off...motor just shut down....busted the LG, Frame and blades...servo gears, so far. i noticed on dissasembly that one of the motor wires was disconnected....since the main gear was not strpped and the motor wasn't running after dropping from 15 ft in idle up, I suspect that was what caused the mishap.

I have most of the spare parts....now if Hobby Lobby would just get their ikarus parts in I would be all set.


***** UPDATE ***** on disassebly notice one of the little pressure tabs missing from the deans connectors, I suspect the rx lost momentory power and shut down. When i was checing out the servoce after repair the radio kept loosing power....the deans most likely caused the problem.

[worldofmaya]

Hi!
Just checked it today and you're right. Don't know why but both the German and the new Gaui manual seams to be wrong or there are different Esc out there...
One can see the difference pretty easy. I flew mine with 4 beeps and was okay. With 3 beeps the machine is really different. Much more power. With the first setting I had spikes around 40A, now I'm getting 70A.
-klaus

[Zoobie]

do you think your findings apply only to the 50A, I have the 75A?

[Pinecone]

IMO, voltage protection is NOT a good thing on helis. Time and use a lipo alarm as backup.

I monitor mAH put back into packs every charge. I don't fly the Eagle Tree every flight.

[worldofmaya]

I heard from some others in a German forum that the 75 Gaui needs 3 beeps for gov too... but I don't have it.
about voltage protection, I think this works quit good. It doesn't regulate or shut down at the first moment like the jazz does.
-klaus

[Graeme67]

Well I bought my Hurricane 3 weeks ago and have finally sorted the "Beep" issue for me. Set on 3 beeps the motor speed was dangerously erratic. I have heard that these Gaui 50amp ESC have issues on Gov mode so I suspect 3 beeps for me is Gov mode. Even spooling up the speed would not ramp up evenly - it would hang, and then the speed would jump up suddenly. the rapid surging was effecting the stability of the tail. I was beginning to think I had a major problem with the ESC.

I then reset the ESC to 4 beeps on the 2nd menu and it became a different machine - smooth as silk spooling up. No rapid power fluctuations just smooth reliable application of power. It's 4 Beeps for me.

[worldofmaya]

Hi!
Governor mode works really well with Gaui 50A esc... just look at the log. There was no erratic. Did you really use 3 beeps? Softstart for both are the same...
-klaus

[mjdee14]

This absolutely insane, there really isno definate setting that works on every ESC...

Some are 3 and some are 4...or so it appears...

[worldofmaya]

Yeah... my hurri dealer spoke with the local distributor and he said that it can happen that some have governor on 3 but it should be on 4. Really not a good point for Gaui :(
-klaus

[Pinecone]

Although the early ones would cut out if set in gov mode. Lots of people learned autos the hard way.

[bstock]

with the Z20 980kv and a 15t pinion

I swapped out my Gaui 50 for an Align 75 amp and will fly that on Gov, mid timing, and medium start.

Mike - long ago I read a post by Tom Viper that the Align ESC does not play nice with the Z series motors.

I have wanted to try a Z motor for awhile... but I do not have or want to swap out the Align 75a ESC to do so.

Have you flown the Align ESC/Z20 yet... and if you have... are they working together OK?