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Scorpion Power ProModeler
HelicopterFlybarless Rotor Head SystemsFutaba CGY › CGY 750 V2 Setup advice needed
05-08-2017 11:59 PM  3 months agoPost 1
heliflight

Senior Heliman

uk

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Hi,

Well I flew my trex 550x for the first time at the weekend, and on the second flight while bunting from inverted with lots of negative pitch and lots of forward stick, the engine cut and the throttle went, the esc being a 120 Jive pro, power was still supplied to the servos and after the auto, I unplugged the batt and plugged it back in, and the throttle then worked and the model had another 4 mins flying.

What happened to cause this cut out some 2 mins into the fresh pack?

I do feel that the head response with the elv and ali rate far too high, to the point its going round so quick its starting to bog. I have yet to set the gov up and I was just running a flat line throttle curve.

Did this have an effect on the cut out? I have set up the cgy 750 V2 for the first time, as per the instructions and Nick Maxwells videos.

What is the best way to detune the control throws to a sensible rate that does not bog the head to keep the set up resolution and is it really just a case of setting D/R's to do it, is what I have expected with all the end points 100, and the swash ring set to max not binding as per vid and control throw set to 8 deg as per vid, or am I missing something?

Dave

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05-09-2017 02:19 AM  3 months agoPost 2
Dr.Ben

rrMaster

Richmond, VA, USA

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No, it's not complicated. Keep the 8 degrees as it is fundamental to proper gyro function. Reduce the cyclic rate to 260d/s. Increase the Style to 65. In your transmitter use -20% expo (or +20 for Jr/Spektrum). Dial use some transmitter dual rate to taste if needed. Set Head Gain to at least 65%.

Try that. The gyro set up did not cause the shut down per se. If it cuts out again, note the esc's LED status light blink count. It will tell you the cause.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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05-10-2017 04:30 AM  3 months agoPost 3
n8rloves2fly

Senior Heliman

omaha,ne USA

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Brown out?

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05-10-2017 06:55 AM  3 months agoPost 4
heliflight

Senior Heliman

uk

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Would over pitch and over cyclic movement cause it to brown out?

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05-10-2017 01:06 PM  3 months agoPost 5
n8rloves2fly

Senior Heliman

omaha,ne USA

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I had a poor connection or wire any pitch pump ect.. Caused brown out not long enough to lose control but ESC. Would reboot.

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