TROUBLESHOOTING
SERVOS DO NOT RUN AND LED FLASHES RED
See page 6 (LED)
Fine agitation movements audible when using digital servos
No problem; these result from the control loop; much stronger movements occur during fl ight anyway.
JERKING TAIL SERVO
If the tail gyro‘s auxiliary channel is at neutral position, it will stay around the switching point between heading hold mode and normal mode, and will randomly
switch it on or off. Use either a positive or a negative signal in the tail gyro channel to defi ne heading hold or not and to obtain a useful gyro gain.
STEPWISE SERVO MOVEMENT
No problem - this is the slower time grid (frame rate) in which some RC systems transfer their pulses.
With the faster frame rate of the device, this is merely more clearly visible on the servos.
NO CALM FLYING ATTITUDE ON THE TAIL AND/OR HEAD
Extreme vibrations (visible or tangible only) on the housing
Especially in the case of internal combustion engines → Observe the installation notes on page 4.
TILTING DURING PIROUETTES (LURCHING OR TUMBLING MOTION)
• Housing not mounted exactly aligned to the rotor shaft?
• With a neutral signal (when in the [Diagnose] menu), swashplate not exactly perpendicular to the rotor shaft?
• 3SX only: Horizon stabilisation active? → (neutral attitude, see p.11 bottom)
TILTING DURING PIROUETTES, ONLY DURING STRONG WIND OR IN HIGH SPEED
• Equalize aileron and elevator inclinations of swashplate using the Mixer menu.
• Use similar Rigid gains for aileron and elevator (Rigid Menu).
WEAK TAIL HOLDING
Travel limit and gyro gain correctly set?
TAIL UNEXPECTEDLY SWINGS OUT TO THE SIDE
Tail drive (belt or shaft) slipping?
15
APPENDIX
