INSTRUCTIONS BEDIENUNGSANLEITUNG
CO NT E NT PRELIMINARY INFORMATION Features, technical specification, scope of delivery Page 3 QUICK INTRODUCTION Installation Page 4 Preparing the remote control Page 4 Connection Page 5 LED Display Page 6 Setup / Adjustment Page 7 Tuning Page 8 Bank switching Page 8 Tai gyro optimization Page 9 Head gyro optimization Page 10 Trimming / Failsafe Page 11 SPECIAL FEATURES Horizon and Rescue options Page 12 Governor Page 15 Vibration Analysis Page 17 APPENDIX Troubleshooting Page
PR E L I M I N A RY I N F O R M ATIO N FEATURES Congratulations on owning a bavarianDEMON stabilization system. This system enables huge performance from your model. The head gyro eliminates all undesired flybarless head characteristics, resulting in optimal control and precision. By incorporating the latest generation of high-quality MEMS gyros, this system offer full 3D capability, whilst boasting a top-quality, ultra-fast tail gyro. In addition, it has in-built symmetrical torque control (revo mix).
QU I C K I NT R O D U C T IO N IN S TA L L AT I O N MOUNTING POSITION Important is an orientation exactly aligned with the level of the main rotor or rotor shaft in all 3 axes, i.e. the assembly surface must be orthogonal (90°) or parallel to these. Contrary to normal tail gyros, this is particularly important to ensure that the head stabilization maintains constant attitude, even during pirouettes. All four main orientation directions are possible (see software), plus mounting it inverted or even vertical.
CO NNE C TI O N Rx port for tail servo 1 2 3 4 5 Connect servos to ports 1-5. Throttle/ESC stays with the Rx. Leave unused channels unplugged. Note: Single-line cables must be plugged into „signal pulse“. SERVO Example: Yellow cable ANSCHLUSS KABELBAUM Connect each cable of the cable loom to the appropriate channel on the receiver, according to the diagram.
• Never use the governor port to supply power to the system! It could take severe damage. • Do not connect servos until the device has been set to the correct servo type via software. • Do not move the model/device for the first few seconds after powering on (LED flashes red). The system runs a self-test and needs standstill to perform this, as otherwise it will not initialize, activate the servos, and start to flash 3x red power-cycle. • When using the cable loom: route all cables as a common bundle.
SETUP / ADJUSTMENT After installation, the device must be tuned to both the helicopter and transmitter, which first includes adaptation of the transmitter to the system, followed by setting up the system to the model. The software includes a setup wizard guiding you swiftly and easily through all the required steps without missing any. Additionally there is helpful information available for each parameter in the info (‘i’ buttton) on the top right of every window.
TUNING ! It is mandatory to have tested all sensor directions! ! At first, fly with considerably moderate gain settings for tail and head gyro (35-45% recommended). ! Control check prior to every lift-off. Never lift off before the servos respond correctly to stick inputs, as only in this case has the initialization been successfull. PAY ATTENTION DURING LIFT-OFF ! In general, pay attention to the horizontal position of the swashplate.
TAIL GYRO OPTIMIZATION SENSITIVITY (GAIN) SETTING As usual, set the gyro gain as high as possible, at which point the tail does not yet tend to oscillate, not even at high flight speed. The tendency to oscillate, and thus the holding force, mainly depends on the speed of the tail servo, but also on a mechanism free of play, with an easy moving linkage, as well as an optimum drive (without belt slipping, or breakdown of the motor controller at full coll.pitch, etc.).
HEA D GY R O O P T IM I Z AT I O N The attitude stabilization („head gyro“) for the flybarless head maintains any attitude and prevents disturbances, such as ballooning, if the pilot does not apply any further control input. On the ground, the function is visible on the swashplate: when giving control input and subsequently letting go of the stick, the swash moves slowly back to level, maybe even staying in the controlled position for a short moment.
TR I M M I NG Using an electronic head stabilization, trim adjustment on the transmitter is not allowed (and not necessary). The system interprets any trim as a control input. Helicopters equipped with flybar, even though they would not need an electronic head stabilization, can still use it in order to correct any minor trim differences and drifts. To do so, start with very low head gain and increase carefully. FAI L S A F E There are 3 options for the failsafe settings, and for each channel of Coll.
SP E CI AL F E AT U R E S HO RI ZON A N D R E S C U E O P TIO NS Important: no exceptions are allowed regarding the setup of Horizon and Rescue modes, in particular: • The coll.pitch travel must reach its 100% marks as displayed in the DIAGNOSE menu, positive and negative, with correct signal direction.
HORIZON/RESCUE MENU Select the desired mode of operation using the ‘Horizon Options’. ‘Rescue Climb Rate’ defines the climb speed in Rescue modes. The higher this value, the more coll.pitch is applied for rescue (only available for ‚Acro‘ and ‚Upright‘). Explaining the options: 1 [SCALE] LED green = ON, red/yellow/blue = OFF Not suitable for 3D flying and allowed only for helicopters which, due to their coll.pitch range (asymmetric), are not capable of inverted flight.
AUTOMATIC COLL.PITCH The automatic coll.pitch action of the rescue feature overrides the coll.pitch stick commands more and more with increasing gain setting on the Horizon channel. A signal of -100% (according to DIAGNOSE menu) completely overrides the coll.pitch stick, which is the highly recommended setup. Furthermore, the rescue mode should be triggered only by a spring loaded momentum switch, so that the pilot re-gains full control by releasing the switch.
G OVE RNO R The AXON includes an internal governor, suitable for electric and gasser/nitro use, which takes over the rpm control from the external governors/ESCm and is able to do this with high efficiency due to additional information about the current flight status. For use with electric helis, either a special, separately available sensor (see accessories) needs to be used, which will simply be run over one of the motor wires, or use a standard hall sensor with corresponding magnet.
Example for gasser/nitro Connect the rpm sensor of your choice to the AXON‘s governor port. Make sure to get the polarity correct (according to the labling on the housing, ground facing to the outside). Throttle curve setup Illustration Idle1 At least 2 throttle curves are needed, one for running idle on the ground, as well as one each per flight setup. An example for running idle is shown in illustration Idle1 on the right.
VIBRATI O N A N A LYS I S This page shows the result of the vibration analysis, divided into head, tail and motor sections. If all sections are green, no critical vibration has been detected. If critical vibration is detected, the section with the highest vibration will be marked first. Example: Tail and head have too high a level of vibration, but the tail is worse. In this case tail would be marked first (yellow or red, depending on the strength of the vibration).
AP PE NDI X TROUBLESHOOTING SERVOS DO NOT RUN AND LED FLASHES RED See chapter LED FINE MOVEMENTS WITH DIGITAL SERVOS ARE HEARD No problem, these result from the control loop, made audible by modern super-fast servos. JERKINESS OF TAIL SERVO If the tail gyro‘s auxiliary channel is at neutral position, it will stay around the switching point between heading hold and normal mode, and may randomly switch it on and off.
WE RECOMMEND FOR YOUR SAFETY • Always observe a sufficient safety distance from persons and objects, including yourself. • Do not underestimate the inertia and momentum of rotating rotor blades. • Always observe legal regulations. • Keep your distance from radar stations, transmission masts and other radio interference sources.
AC CE S S ORY Foam tape ‚Acro‘ ACP (3 pcs) No. 96097 Foam tape ‚Soft‘ ACP (3 pcs) No. 96098 Cable loom L150 ACP (150mm) No. 96099 Cable loom L250 ACP (250mm) No. 96100 GOV Sensor E8 (Electric rpm sensor, under development) No. 96585 B module (Bluetooth, under development) No.
IMP RI NT SERVICE AND INQUIRIES and lists of authorised dealers, e-mail contact, etc.: see our webpage www.bavarianDEMON.com. VERSION 1.5 CAPTRON Electronic GmbH Johann-G.-Gutenberg-Str. 7 D-82140 Olching Germany Fon +49 8142 4488 -0 Fax +49 8142 4488 -100 D GB F Hiermit erklärt die CAPTRON Electronic GmbH, dass sich dieses Gerät in Übereinstimmung mit den grundlegenden Anforderungen und anderen relevanten Vorschriften der entsprechenden CE Richtlinien befindet.
