Vbar 5.2 Gov setup

[helimadness]

Hi All.
Got a Hyperion phase sensor. I have a JR standard receiver going into the Vbar. As usual the manuals are totally useless so after watching a heap of mr Mels videos I got it mostly working. There is no where else that tells you where to plug the BEC cable from the ESC into.

1) I have the BEC from the ESC plugged into Channel 4 and selected on the output socket on the Vbar in GOV 1 screen.
2) Throttle on the RX is into AUX on the Vbar. (I think this is where the problem is)
3) AUX1 which is pitch on the RX is into the collective on the Vbar

Problem I am having is the throttle doesn't kick in till I get to 50% stick. On the "Transm" screen on the Vbar the "AUX/ Gyro gain / Bankswitch" is working perfect as the throttle and the ESC throttle is stuck on 50%. I have setup travels to -100 + 100. I tried swapping the output from the RX so the pitch goes into the throttle and the throttle goes into collective but just cant seem to get it too work.

Speed sensor is working, collective is working just not the throttle.

Totally stumped on this one. Any help appreciated.

Just to add on Mr Mels videos he says to connect the BEC cable to the Collec /ESC but the only output in the Vbar is for channel 4.

Cheers

---------------
Trex 500 EFL Pro / Vbar 5.3 Pro
JR XG 7 / RG831B RX

[Swashbuckler]

What ESC do you have, you mention a "BEC" lead from the ESC. Most ESC with a BEC have one plug, the black wire will be ground. The red wire will be +5V (or whatever the BEC puts out, and the orange or white wire is the throttle signal which would normally plug into the throttle channel your receiver. My guess is this is where you are getting confused. A BEC can be plugged into any spare channel, it doesn't need to go anywhere specific. Be careful though with full sized VBar only plug your BEC into the side of the box with the 8 connectors, pretty sure theres a port on the sensor side of the box that mustn't have anything above 3.3v plugged into it.

I think ( its hard without it being in front of me) you need to connect throttle(ch1) on your rx to collective on the vbar. The ESC would then plug into aux or servo and you tell the vbar software which one it is, but please please please check out the bec situation. If the BEC is the same plug as the throttle signal make sure the port you plug it into can take the voltage, if it can't you may need to pull the signal pin from the plug and put it into its own plug seperate from the BEC. Unfortunately the only full size vbar that I am using with a seperate rx is on a nitro, but thats pretty much how its setup I believe.

[helimadness]

Hi,
To answer your questions I have standard align (BL70G) 70amp esc with bec cable coming off. black, red, white (currently set to 6v)

Cant believe how bad and hard to follow any instructions are. Or maybe Im just a bit thick. As a newbee but Im sure Im not on my own.
Here is a screen shot off the Vbar software instructions that I was following when I first hooked it up. Shows the plug above the sensor as the servo / esc plug. So I plugged the BEC cable that comes from the ESC into that. It did boot up but all went a bit crazy so unplugged. I have since put the BEC plug into Channel 4 as it seems like the only option after I connect the heli. Once connected to the PC that is the only option other than servo (no Bec) certainly not very helpful to working out the hook up before you get power to it. Implied totally the opposite.

vbar.jpg

I used to have the BEC wire (which I guess to be correct is BEC and throttle together ??) plugged into the RX and the ESC was doing the speed control. Now I want to use the Vbar as the gov surly I have to have at least the white cable plugged into the Vbar so it can control the ESC. Sounds like I have to split the plug?

Ill do a drawing of how I have it setup now so it is clearer and post again later

Cheers

[helimadness]

ok try this. I have done a mock up of where I am at. Picture is a 1000 words they say. Actually made it a lot clearer for me as well drawing it out. Sorry about the paint skills hopefully you get the idea.
Basically everything is working. Problems are.
1) In the setup screen for "transm" The collective is controlling the "Aux / Gyro / Bankswitching" (Which also messed up my bankswitching so turned off for now) Both this and the collective I have setup to 100% +- in the TX.
2) When I try and set the throttle up I have no throttle under 50% stick .

Only option in Vbar for input is "Aux Input" and for output "Channel 4 or servo (no bec)"

Only option I see is to swap the Collective and Throttle. Or move the white throttle wire to the servo on the right side of the vbar.

Vbar Dia.jpg

Cheers

[garlicfish]

Sounds similar to issues I was having.
First off if in doubt click the reset button on the first gov setup tab and set your options again. This seems to fix wierd gov behaviour sometimes.
The other really important thing is to make sure the ESC has recognised the full range of travel on the ESC channel.
I had really big problems setting endpoints (and ESC initialisation) until I decided to rewire my power harness to allow me to plug in the ESC only after the vbar was fully initialised.
In your setup if you are powering the vbar from the BEC in the ESC, this will be difficult so you may have to rig a temporary external power source for the vbar to allow you to set the ESC endpoints.

[helimadness]

I change my throttle and pitch curve in normal to 0-50-100 during setup. Looking over Mr Mels videos again and reading more apparently this is normal for the heli not to spool up under 50%.
When I was trying to set my lower limit I was having trouble as I would have to move the stick upto half to get it to spool up then if the number was too low even with the stick right down the motor was still spinning. I guess this is the bailout feature.
I am thinking it is actually working ok. Just not sure I have it on the right channels.
I have had to disable the bank switching as was using the same channel so need to work out how to get that going again. Run out of room in the Vbar but. All sockets on the left are full.

[RcRotaryMadness]

I don't have a V-Bar myself yet but i have setup HeliCommands and Governors before...

Usually if you have a Governor managing the head speed, then you dont have any throttle curves at all - they should be a flat line.

The way to stop it spooling up all the time is to use "Throttle Hold" on the TX.

So I think with a Vbar the setup is something like this:

You tell the Vbar what Head speed you want,
It says "OK, But i'll only do that when I see over 50% throttle input from the TX"

So in the TX you set all your throttle curves to (for example) 80% flat line
You then use throttle hold to keep the throttle output at 0% for "Off Throttle"


So now, when your ready to go, you switch off throttle hold, and the Vbar will see 80% throttle (ON) and will get your head speed up to whatever you've programmed into it.

This should work regardless of where the collective/throttle stick is


The point is when you use a Governor, your throttle stick and throttle curves mean very little - ALL they are used for is a "On or Off" switch - and that switch is really your throttle hold switch.

The reason the Vbar wants over 50% is because it works on 0-100% - sso 0-49% is the OFF side of the switch, and the 50-100% is the ON side of the switch... you have set up the programming in your TX to do this..

[helimadness]

I do run flat throttle curves except normal mode which is 0,75,75,75,75. I think this is basically how Mr Mel had his. Just had me confused as to why it wouldn't spool up until I got to 50% throttle but It sounds like that it normal. If that is the case then I guess it is working.
Just have to work out how to get my bank switching working again as run out of ports in the Vbar.

Cheers

[RcRotaryMadness]

Yeah if your throttle curve is 0, 75, 75, 75, 75 then at bottom stick it'll be off, although should be on at 1/4 stick or so...


My V-Bar has just arrived today so will be joining you on this setup lark very soon!