rrTV-PHOTO   New HD TV
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 618 ONLINE 20 EVENTS SEARCH REGISTER  START HERE
 
1 page279 viewsPOST REPLY
CanoMod . Futaba-RC . A Main Hobbies

.
.
Radio - Servo - Gyro - Gov - Batt > Multigov & 9303 question
 
 
Flyinrazrback
Veteran
Location: Shreveport LA

Quick question for those of you who have the multigov and 9303. I want to set it up where I can turn the gov on or off with a switch (gear switch and 9303 governor menu), but then run 3 head speeds for each flight mode. By using the 9303 governor menu, can I set 3 speeds, one each for N, ST1, and ST2, and still turn it off completely by turning off the gear switch?
08-12-2008 02:01 AM
 
 
CitationX
Senior Heliman
Location: Danville, IN

Same questions as Flyinrazrback and a few more.

I am in the process of setting up the Multigov (version 1.5) on my Freya Evo 90 running AR7000 & JR9303. Installation is as described in the Multigov instructions including RPM Select on Multigov connected to Gear channel on the receiver. I set up the 9303 as per the instructions shown in the link:

http://aerospire.com/support_radiosetup.html

I have gone through the menu screens on the LCD for the Multigov and setting the idle and high points (as well as testing the idle & high points). I then configured the 9303 to set Gear channel to governor mode, set three values (100, 0, -100) and then went to the Governor Test screen on the LCD. I was never able to get the screen to change from "OFF" to "ON". I have to assume this should happen as you advance the throttle stick on the transmitter. However, my screen never changed as I just described. Likewise, am I able to completely shut off the Multigov via the Gear switch and does the Multigov shut off when I initiate throttle hold?

If I need to provide more detail please let me know.

Thanks
08-12-2008 03:11 AM
 
 
Zaneman007
Key Veteran
Location: Texas - USA

You turn the multigov off by going below a certain RPM. That means a linear throttle curve.

I don't understand a 100, 0, -100 throttle curve?

I don't understand what you are wanting to do.

I'd rather be flying
08-12-2008 04:25 AM
 
 
Flyinrazrback
Veteran
Location: Shreveport LA

I understand you can turn off the gov below a certain rpm, but can you turn it off completely with the gear switch as set up above in my post?
08-12-2008 04:49 AM
 
 
tadawson
Elite Veteran
Location: Lewisville, TX

I brought this up about a month ago, and the conclusion was that three speeds and off is not doable with the current code. Bob at Aerospire, however, graciously offered to modify the code in mine to allow the extra input channel to be used as an on/off, allowing this function. A search for the topic will give details, and while I have not yet taken Bob up on his offer, plan to . . . so I think if you contact him, he will most likely offer the changes to you as well.

- Tim

The more I touch electrics, the more I grow to hate them . . . .
08-12-2008 05:11 AM
 
 
Zaneman007
Key Veteran
Location: Texas - USA

The only way you can turn off the multigov is by setting the RPM in the mulitgov below a certain point. That will take a switch position. Then set the other two switch positions to whatever you want. I don't think that there is a four position switch on the 9303.

Also, as previously stated when the throttle curve is linear(o to 100) the multigov will not kick in until it hits a certain percent.

Not sure what you are trying to accomplish here, but FYI if the governor kicks in "all of a sudden" and your head speed is low, there is a good chance the tail will kick.

Everyone I know ties the governor into the flight mode switch.

I'd rather be flying
08-12-2008 05:20 AM
 
 
BarracudaHockey
rrMaster
Location: Orange Park FL

Best way I have found to set them up is to use overspeed mode in normal and set the speed with throttle curves, set the limiter rpm up to something like 1850 or so and if you keep it below that with the throttle curves then it will be effectively off in normal mode unless the head overspeeds.

Then set I1 and I2 up for governor mode. Anything below 25 or 30 percent on the throttle curve will turn the governor off.


AMA 77227
http://www.jaxrc.com
08-12-2008 03:21 PM
 
 
Flyinrazrback
Veteran
Location: Shreveport LA

Ok, for the 9303 when using the governor mode, by changing the values in the governor mode, does that change the speed in the mulitgov? Sorry for the basic questions, I am trying to comprehend how this works since I have only been familiar with GV-1s.
08-13-2008 01:40 AM
 
 
CitationX
Senior Heliman
Location: Danville, IN

Razrback - I assume you too set up your 9303 to use the Gear channel in governor mode. Then, the Aerospire website (link I posted) explains the Norm, Idle1, Idle2 settings as 100,0,-100. If so, I am right there with you.

My experience is with the GV1 as well and I thought by setting the numbers 100,0,-100 on the Governor screen that would translate into rotor head speeds. My assumption is that this would be comfirmed when looking at the LCD on the "Speed" screen, i.e. Speed1, Speed2, Speed3. Then when I go to the "Gov. Test" screen it always reads "Gov. Test - Off".

The Speed numbers (1,2,3) do change when I flip the flight mode switch but I also thought I would see a corresponding rotor head speed I could set from the transmitter. I took some screen shots just for the heck of it.

I hope this provides some additional information for the guys reading the post. That's what I get for hanging around the GV1 for so long!

Thanks

08-13-2008 02:03 AM
 
 
Pinecone
Key Veteran
Location: Maryalnd

You can't set the speeds via the Tx with a MultiGov, you can only pick one of the three speeds set into the Gov.

If you set the speed for any one of the 3 to below 500 RPM, the Gov is disabled for that speed.

Terry
Blade CP
Trex 450 SE
QJ EP8v2 EX
Gaui Hurricane 550
Vibe 50
08-13-2008 12:49 PM
 
 
Flyinrazrback
Veteran
Location: Shreveport LA

Ok, me and citation got it figured out on the speeds, now just trying to figure out a p-mix to turn that switch on/off.
08-13-2008 04:18 PM
 
 
DenisS
Key Veteran
Location: Essex, UK

Isn't there a flight mode four switch available in the system menu? have you tried activating that and seeing if you can set that to less than 500? I haven't got my Tx with me so don't know if it makes the speeds available in all four modes
Denis

Crash 'n Lurn
08-13-2008 10:00 PM
 
 
Pinecone
Key Veteran
Location: Maryalnd

AFAIK the MultiGov only recognizes 3 settings. So you can have 3 headspeeds or 2 headspeeds and Off.

Unless you contact AeroSpire and they do the firmware mod to give you 3 speeds PLUS off.

Terry
Blade CP
Trex 450 SE
QJ EP8v2 EX
Gaui Hurricane 550
Vibe 50
08-13-2008 11:15 PM
 
 
CitationX
Senior Heliman
Location: Danville, IN

OK, now that I feel like a complete idiot I believe I figured it out. Pressing the +/- buttons changed my speed values accordingly. I did end up going back into the Governor screen on the transmitter and setting Norm to -100, Idle 1 to 0, and Idle 2 to +100. That corresponds to the correct speed orientation on the LCD, i.e. Norm = Speed 3, Idle 1 = Speed 2, and Idle 2 = Speed 1.

The Gov. Test screen on the LCD now shows that at about 20% stick location the Governor turns on and off, via stick switch position. The Governor also turns off when I flip throttle hold.

Now, the last thing to do is to be able to shut the governor off from the Gear switch on the transmitter. This may have been mentioned earlier, if so, sorry for the repeat. I typically like to set my initial throttle curves. Starting with the Normal curve I would lift into a hover, listen to the engine and head speed (also check with an optical tach if desired), then flip the governor on and listen to any change in head speed & engine RPM.

The only way I know of to get around this on the Multigov is to set Speed 3 (Normal for me) to less than 500 (it defaults to OFF). Set Speed 2 to be what I want the Normal mode head speed to be and at the same time set the 9303 throttle curves for both Normal & Idle 1 exactly the same. This will allow me to flip the Multigov on/off by flipping the flight mode switch on the 9303 and test only the Normal mode curve to the programmed Multigov speed. I would then have to do this same concept for Idle 1 and Idle 2. Sounds combursome but it's the only way I know to do it.

Any additional thoughts are greatly appreciated.
08-14-2008 02:35 AM
 
 
1 page279 viewsPOST REPLY
Boca Bearings . Modefo's RC Helicopters . XHELI.COM

.
.
Radio - Servo - Gyro - Gov - Batt > Multigov & 9303 question
 PRINT TOPIC Advertisers 

Subscribe to This Topic

Sunday, November 23 - 2:41 pm - Copyright © 2000 - 2008 runryder.com | email | link to rr | runryder needs cookie