Align TREX 700E V2 Manuel d'instructions télécharger pdf (Page 42)

Q&AO

Pitches up during fast forward flight.

(1)Elevator gyro gain too low, increase the elevator gain by gradually turning the ELE dial clock\ . e.

(2)Elevator trim not centered. Check if helicopter is tilting backwards during hover.

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Insufficient gain during flight, but increasing gain results in oscillation.

(1)Check and resolve possible mechanical vibration from helicopter.

(2)Use softer 3GX mounting foam, or double up the stock 3GX foam.

(3)Relocate the 3GX to location less prone to vibration.

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Drifting during 3D maneuvers.

(1)Increase AIL and ELE gain by turning both dials clockwise.

(2)Check if cyclic servos are too slow (minimum 0.1sec 160 degrees)

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Unstable hover, control inputs are too sensitive.

Decrease the aileron and elevator ATV(AFR) value on the transmitter. For CCPM machines, decrease swashplate mixing

percentage on the transmitter. In addition, exponential can be added to aileron and elevator channels.

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After increasing the ATV(AFR) of aileron and elevator, 3D roll rates are still not enough.

Go back through the DIR setup procedure and use larger cyclic pitch.

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3GX fJybarless sy'stem unable to power up.

(1)Check 'PropeM'oltage source.

(2)C~eckAll::IELEiPlT connections between f1ybarless control unit and receiver.

(3)CHeck1he power connection of 3GX and receiver.

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3GX flybarless system powers up with LED flashing, but swash plate did not jump 3 times, pitch is locked, unable to

complete the initialization process.

(1)Possible movement during initialization process. Make sure helicopter is absolutely stationary,

(2)lf STATUS LED flashes red, check the connection between controller and receiver.

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I noticed swashplate tilts Slightly at extreme pitch due to servo interactions, should I make efforts to level it out?

No. Level the swashplate at

degrees using subtrims ONLY in DIR setup mode. (please refer to page 26 step1.3)

End point swashplate interactions are automatically compensated by the 3GX system while in flight.

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What adjustments can I make on the transmitter after the DIR setup has been completed?

You can adjust the trim tabs, dual rates, exponential, collective pitch, and aillelev swash AFR (for roll rate). Again do NOT adjust

the subtrims unless followed by repeating of DIR setup steps.

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During step 5 of DIR setup mode, only aileron swashmixing was mentioned. Should I set elevator swash mixing as well?

No. The 3GX system automatically calculates a cyclic ring based on the aileron swash mix percentage. Setting of elevator swash

mix has no affect on the 3G system. Set the cyclic pitch by the aileron swash mix & just use the same value for elevator.

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Align TREX 700E V2 Manuel d'instructions Page 42

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