RunRyder RC
WATCH
 1 page 1040 views POST REPLY
HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsFutaba CGY › CGY 750 help needed :-(
05-31-2012 11:15 PM  6 years agoPost 1
heliflight

rrApprentice

uk

My Posts: All  Forum  Topic

Hi,

I am starting to get the hang of how to set this thing up now, but I am left with one problem I can't work out and hope there is someone out there who might be able to point out what i'm doing wrong???!!
Its all to do with setting up the gov on it. Now I have it working, its off in hold, on in normal at 30 per cent, and on all the time in idle one and two. The indications all seem to be showing right on its home screen when switched between hold and idle up's.
But the very first part of the instructions tells you to make sure the display is changed to 1, 2, 3 by moving the switch and set the desired rpm at each point. Now when the idle up switch is moved this rpm screen does not change and the number top right of the screen just stays on 3.
I just can't work out what i'm doing wrong here, The TX i'm using is a 8fg super and the gyro menu screen on the tx seems to shown it switching between idle ups...
I also need to add that I have watched the youtube vids and I have not seen anything that covers this yet.
:-(

Please help :-(

Dave

PM  EMAIL  Attn:RR  Quote
05-31-2012 11:20 PM  6 years agoPost 2
gmarsden

rrNovice

Toronto

My Posts: All  Forum  Topic

The RPM displays in the governor menu should change when you select different conditions, if not, check that you have the SBUS governor channel in the 750 set to the same channel that your transmitter is using.

- Greg

PM  EMAIL  Attn:RR  Quote
05-31-2012 11:26 PM  6 years agoPost 3
heliflight

rrApprentice

uk

My Posts: All  Forum  Topic

Hi Greg,

Thankyou, i'm new to this Sbus lark, any chance of explaining just what I need to look for and where as it is something I have checked but I know there is a bit of lack of understanding there. :-)

PM  EMAIL  Attn:RR  Quote
05-31-2012 11:42 PM  6 years agoPost 4
heliflight

rrApprentice

uk

My Posts: All  Forum  Topic

This is what i'm confused by :-( when I checked the 750 unit, there is an sbus channel for rpm, which was set for ch7, I changed this to ch8 the same as the gov? In the tx SBus there is not one marked RPM so what should be set??
It then changes the rpm numbers when you move the idle up switch, but the number 3 does not change top right?? And when you set the RPM for the different idle ups, when you switch through them the numbers change. Do you have to do anything with the thr curves to stop this?
Now when you switch thr hold, the number top right which stays a 3 through all the idle ups changes to a 2 and the rpm changes to 1800 which is not something I have set and as far as I could tell if the gov was off in the hold condition....

:-(

PM  EMAIL  Attn:RR  Quote
06-01-2012 01:13 AM  6 years agoPost 5
gmarsden

rrNovice

Toronto

My Posts: All  Forum  Topic

Sounds like you are almost there, you do not need to worry about the 1,2 or 3 if you are using the governor channel, they are for throttle only setups. Just make sure the RPM display matches what you have set in the Gov menu of the TX.

The simplest set up uses a stick switch on the throttle channel to turn the gov on and off. This way the the governor is off at low throttle stick or in the hold condition.

In normal the throttle curve should start at 0 and quickly rise to a flat line at 50 or 60% or whatever it takes for hover for the other points. The idle up throttle curves can be flat lines or slight V curves at 80 or 90% or so. The throttle should be 0% or a few percent in hold if your ESC has a special auto mode.

Hope that helps.

PM  EMAIL  Attn:RR  Quote
06-01-2012 08:33 AM  6 years agoPost 6
heliflight

rrApprentice

uk

My Posts: All  Forum  Topic

How do you mean thr only setups?
This model is an IC model so no ESC

PM  EMAIL  Attn:RR  Quote
06-01-2012 09:20 AM  6 years agoPost 7
heliflight

rrApprentice

uk

My Posts: All  Forum  Topic

And that my whole problem, it wont match it for some reason. What am I doing wrong...? :-(

I have set in the tx,

normal 1900 rpm
Idle 1 2050 rpm
Idle 2 2150 rpm

And when you set the unit the same, as soon as you flick through the idle ups on the switch, the number in the box on the top right hand stays 3 and it changes the rpm on the unit to,

Normal 2015 rpm
Idle 1 2096 rpm
Idle 2 2150 rpm

Why is it doing this and whats going on? Also when you flick the hold switch the number changes from 3 to 2 in the top right hand side of the unit and the rpm changes to 1800 but this should be gov off. on the home screen of the unit it showns the gov on and off at all the correct times

PM  EMAIL  Attn:RR  Quote
06-01-2012 12:09 PM  6 years agoPost 8
gmarsden

rrNovice

Toronto

My Posts: All  Forum  Topic

Throttle only setups do not use the governor channel, so this does not apply to you. The idea is that you can select 3 head speeds based on the throttle %, and the little numbers 1-3 show which one is active.

If you have the TX set to 2500 mode in the Gov screen, you should be able to tweak the setting in the 750 with the +- buttons so that the RPM display matches the TX.

The RPM display in hold does not matter since the TX should be outputting 0% throttle and if you have the stick switch set in the 750, the governor will be off. Make sure you set the low and high limit in the 750 and then the stick switch position.

- Greg

PM  EMAIL  Attn:RR  Quote
06-03-2012 06:15 PM  6 years agoPost 9
heliflight

rrApprentice

uk

My Posts: All  Forum  Topic

Right, intersting goings on, I will just run through what I did and how I did it..

I took notes as I was looking at it and this is what what put...

All very confusing..!!

In normal condition and mode 1000-3500rpm, taking the rate down on the tx, at 1395 the rpm reading on the 750 is 1908 and the number in the box top right is 1, you take it up to 1400 the 750 now reads 1920 and the number top right changes to 2, take it down to 1000 and the 750 now reads 1000. Take it back up to 1500 and the readout on the 750 stops at 2150. ( which is what I had set it to in idle2 first.)

I then took the tx setting upto 3000 and set the 750 to 3000, going back down on the tx and the numbers on the 750 fall but not at the same rate as the tx. At 1920 on the tx the rpm on the unit is 2388 rpm and the number in the box top right is now 3. All the way back down to 1000 on the tx the numbers are not the same but meet back at 1000 hmmmm.!! I take it back up to 1500 and then adjust the rpm on the unit to 1500 and guess what, the unit now reads just the same as the tx, full range!!

One interesting thing to note is starting at 1000 on the tx, the 750 now reading just the same, going up the number top right is 1, it changes to 2 at 1400 and changes to 3 at 1710.

I now then set in the TX normal to 1750, idle 1 to 1950 and idle 2 to 2150. And the unit reads just the same :-). I shut it down, both unit and tx, restarted them both and unit now reads as per settings set on tx for flight condition normal, idle 1 and idle 2 all with a small number 3 in the box top right!

The gov is now working as it should, looking at page 87 and the governor speed setting its a bit confusing as it talks about points 1 2 and 3 and the transmitter EPA can be changed from 20 to 100 percent, What is the transmitter EPA function?

PM  EMAIL  Attn:RR  Quote
WATCH
 1 page 1040 views POST REPLY
HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsFutaba CGY › CGY 750 help needed :-(
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Wednesday, November 21 - 1:31 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online