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HomeAircraftHelicopterHelicopter Main Discussion › FBL unit with separate Governor
03-17-2015 12:15 AM  3 years agoPost 1
datidun

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N Ireland

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Hi guys wonder if somebody can please help me out,I have put on a separate Governor CSM Revlock 20 on my Skookum 540 unit,I have the cables all correct and checked by others,but for some reason I cannot get signal to the Aux cable running from the Gov to the Skookum,as I am not able to set up the head speeds through the flight mode switch and lights are out on A and B on the governor,I tried different things on the radio JR dsx 9 like enabled gear,aux 1 and aux 2,I changed the cables and then tried another Governor the same type,the Gov just sits in manual mode,the servo works fine and the Gov can be set up right until the head speeds have to be set,the gov was used on FB helis with good results,some how there is no signal through that cable,any ideas please.

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03-17-2015 02:32 AM  3 years agoPost 2
dkshema

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Cedar Rapids, IA

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Seems to me that you need to use a standard, external receiver connected as shown:

The RevLock would connect to the RX as you are currently used to, the throttle output of the RX goes to the throttle input of the RevLock, the RPM setting cable would connect between the RX and RPM control of the RevLock. I'll assume you would use Channel 5 out of the RX for this -- labeled AUX in the picture -- would be GEAR channel, and control it using your DX9 Governor menu as you are used to.

The sensor plugs into the RevLock, the servo plugs into the RevLock servo outlet socket.

And make sure you have a way to get power from your power source to the RX, as well.

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Dave

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03-17-2015 11:30 AM  3 years agoPost 3
datidun

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N Ireland

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Thank you for the drawing Dave,I had it like that when I had the Microbeast,but have changed two the Skookum 540 with two satellite receivers,but to run the Revlock is just not working no signal going to the 10 B or C channel on the Skookum,when I flick the flight mode switch it does not communicate with Revlock,it must be that type of Governor that wants to work with an external receiver

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03-17-2015 06:49 PM  3 years agoPost 4
dkshema

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Cedar Rapids, IA

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Where did you find info about hooking up an external governor to the S540 in the first place?

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Dave

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03-17-2015 07:03 PM  3 years agoPost 5
datidun

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N Ireland

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I speak to to some of the Skookum pilots,the ones I speak to are using the internal Governor on the 540 red addition,there is another way which I am not familiar with thanx to him on RR,to get things working he is using an Futaba S bus,power going into 10b and 10c,gain which must be the REM cable going into SWA,that wont work with a JR radio though,thats maybe the reason I cannot get signal through the REM cable.

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03-17-2015 07:23 PM  3 years agoPost 6
dkshema

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Cedar Rapids, IA

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Just curious, as there is no information at Skookum world that can be found to describe this setup, and even with downloading the current sorftware and PC program, see nothing that remotely allows you to run any governor control out of the Skookum ports.

Of course, if these two outputs are supposed to act like servo channels, then simply plug a servo into the port and see what it does when you change the governor settings in your TX.

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Dave

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03-17-2015 08:03 PM  3 years agoPost 7
datidun

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N Ireland

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The red Skookum 540 has the internal governor and the Clear plastic one does not have the Governor,I really dont know why there is no info on this,you can copy the Wizards but to get the fine tuning done I speak to the pilots online,the two ports are used with the red Skookum,one is for the throttle servo and the other for the backplate sensor.

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03-17-2015 11:28 PM  3 years agoPost 8
jwatts007

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England

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Why not use the SK540s guv its got to be the best nitro guvnor out there...

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03-18-2015 12:58 AM  3 years agoPost 9
dkshema

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Cedar Rapids, IA

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Why not use the SK540s guv
Well, that is an obvious question, but the OP would like to be able to use an existing Governor that he understands how to use, and apparently whose operation he likes.

But -- trying to use what seems to be an undocumented feature that only the "Skookum Pilots" seem to know about is not my idea of having fun.

That being said, I downloaded the current version of Skookum software and took a look around.

The design of the internal governor appears to be such that there is no way that it uses a separate transmitter/receiver channel to actually set/select and control RPM. The only way to control RPM using this governor for a nitro heli, appears to be that you set your desired RPM using the setup software or the optional control panel.

IO-A looks to be used for a nitro throttle servo.
IO-C looks to be the Governor sensor input if you're using the internal governor.

There is nothing in the setup stuff that even remotely talks about using a transmitter channel to control RPM.

It appears to me that the Skookum 540, when used in conjunction with satellite receivers, just isn't designed to support external governors. It would seem odd that Skookum pilots are not using the internal governor, in spite of it being
...the best nitro guvnor out there
If they truly are, then maybe they have Super Secret Beta software that no one knows of, to do so.

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Dave

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03-18-2015 01:49 AM  3 years agoPost 10
geomecc

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Long Island ,NY

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i have been trying to help the op via pm"s. the problem is that he cant seem to get the governor in the skookum to work with his radio. so he is trying to use a gov that he is familiar with and use the skookum as a fbl unit only. I think there is a setting he hasnt set properly weather its in his radio or the skookum gyro. or his sensor isnt working. Its hard to figure out with out being able to see whats going on in person.

R I P Roman Jr. Team SKOOKUM SRW EFC

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03-18-2015 02:08 AM  3 years agoPost 11
dkshema

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Cedar Rapids, IA

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I've helped the OP for several years with various problems.

The current one seems to be not with the Skookum governor, but with hooking up a CSM RevLock 20 to the Skookum, while using Spektrum satellites.

Frankly, unless there is a magic software load, that isn't going to happen.

As for using the Skookum governor with his DSX9 transmitter and a couple of satellites, that seems to be pretty much a straightforward proposition, but you can't control/set governed RPM using the Governor menu and settings in the transmitter. It appears the only way to set RPM is through the setup wizards.

-----
Dave

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03-18-2015 03:00 AM  3 years agoPost 12
dkshema

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Cedar Rapids, IA

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OK Kids, here's the scoop...

I wrote Skookum a short email this morning, and not too surprisingly, they answered. Gotta give them an "A" for effort.

Here's the email, below, read it from the bottom up:

-----
Yes

Any spare channels on your transmitter will be output on spare ports on the Sk540, and you can treat them like receiver ports. The order is IO-B, IO-C, then SW-A

Best Regards
Art

On 17/03/2015 5:27 AM, David Shema wrote:
> Sender's name: David Shema
> E-mail: XXXXXXXXXXXXXXXXXX
>
> Message: Can I use the Skookum 540 with DSMx or DSMx satellites, AND use an external governor such as a Revlock or Throttle Jockey Pro? If so, what are the connections between the external governor module and the Skookum 540?
>
-----

OK, fair enough. Hook up a satellite or two, and ANY SPARE CHANNELS squirt out the three spare ports -- IOB, IOC, and SWA, in that order.

So if the desire is to use your RevLock 20 (or Throttle Jockey Pro or..) as an external throttle governor, what would you do?

Throttle channel out of the S540 to the throttle channel input of the RevLock. Seems a bit odd, but could be done.

RPM control signal, I guess you would have to slave one of your unused AUX channels to your flight mode switch or perhaps some other switch on your TX, then run that to the RevLock RPM control input. I guess that would be out of IOB, IOC, or SWA...take your pick? Slaving unused channels to the Flight Mode Switch in a DSX9 isn't really much of an option.

And, of course, the throttle servo plugs into the throttle out port of the RevLock.

Channel 5 -- the Governor output of the DSX9 most likely isn't considered a "spare channel", and probably isn't accessible.

Aux 2 (the Gyro gain channel of the DSX9) -- is this a spare, or is it used in the S540?

Aux 3 and 4 -- those certainly are spares, but seemingly would take some mixing and magic to turn into the RPM control.

-----

It sounds possible, but it's not really clear on how you would go about hooking things up, then making them work.

I'd give the built-in gov a shot first. Sounds much simpler, and uses less hardware and wiring.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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03-18-2015 04:39 PM  3 years agoPost 13
datidun

rrElite Veteran

N Ireland

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Flyin for jesus pm sent,there is nothing wrong with my radio and nothing wrong with the Skookum,except for the Governor over speeding when descending and motor pulsing,my file has been checked,thanx.

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