ROBBE FX-20 Instruction Manual
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Instruction manual
FX-20
No. F8072
CONTENTS PAGE
Safety precautions, observe at all times
1. Contents .............................................................. 4
2. General descripton ............................................ 4
2.1 FX-20 Transmitter ................................................ 4
2.2 R-6108 SB Receiver ............................................ 5
2.3 Receiver binding................................................... 5
Binding (Easy Link) ............................................. 5
Converting from analogue to digital servos .......... 5
2.4 Connecting the servo using PWM ........................ 6
2.5 Receiver output configuration for aircraft ............. 8
3. Technical data ..................................................... 9
3.1 FX-20 Transmitter ................................................. 9
3.2 Receiver R6108 SB 2,4 GHz ................................ 9
4. FX-20 transmitter controls ................................ 9
4.1 Turning transmitter on and off .............................. 10
4.2 LED monitor ......................................................... 10
4.3 Stick adjustment ................................................... 10
• Length adjustment ............................................. 10
• Spring centring ................................................... 10
4.4 Liquid Crystal Display ........................................... 10
4.5 Digital trim buttons ............................................... 11
4.6 Ratchet activation (stick mode) ............................ 11
4.7 Changing throttle function .................................... 11
4.8 Rotary control knobs ............................................ 12
4.9 Linear slider .......................................................... 12
4.10 Aerial .................................................................... 12
4.11 SD card memory .................................................. 12
• Inserting SD card ............................................... 12
• Formatting SD card ............................................ 12
• Removing SD card ............................................. 13
• Data transfer from PC ........................................ 13
• Backing up data ................................................. 13
• Memory capacity ................................................ 13
5.
6.
Remove/change the Transmitter battery .......... 13
RC charger, charging the trasmitter battery 14
7. Menus and navigation ........................................ 15
8. Start display description .................................... 16
8.1 Home Screen/ Start display for all model types .... 16
8.2 Control/switch H/W SELECT menu ...................... 17
8.3 Timer .................................................................... 18
CONTENTS PAGE
9. SYSTEM MENU (SYS) ......................................... 19
9.1 TRAINER operation .............................................. 19
9.2 Trainer system ...................................................... 20
• Trainer as instructor Tx ...................................... 20
• Trainer as student Tx ......................................... 21
9.3 Flight simulator operation ..................................... 21
9.4 Display settings .................................................... 21
• Contrast adjustment ........................................... 21
• Brightness adjustment ........................................ 21
• Display illumination period ................................. 21
9.5 User name ............................................................ 22
9.6 Control set-up H/W SET ....................................... 22
9.7 Stick mode selection ............................................. 22
9.8 Switch - Switchtyp Assigment .............................. 22
9.9 Information ........................................................... 23
10. Linkage menu (LNK) ....................................... 23
10.1 Servo .................................................................... 23
10.2 Model select. ........................................................ 24
• Select model memory ........................................ 24
• Create new model memory ................................ 24
• Delete model memory ........................................ 24
• Rename model memory ..................................... 25
• Copy model memory .......................................... 25
10.3 Model type ............................................................ 25
• Select wing and tail type .................................... 26
• Select swashplate type ...................................... 26
10.4 FREQUENCY modulation mode FASST .............. 27
• 7Chanel / MULT ................................................. 27
10.5 Change Frequency AREA .................................... 27
10.6 Function ............................................................... 28
• Configure controls .............................................. 28
• Select trim controls ............................................. 28
• Trim adjustment ................................................. 28
10.7 Sub trim Servo centring ....................................... 29
10.8 Servo reverse ...................................................... 30
10.9 Fail safe adjustment ............................................. 30
10.10 Servo end point/travel adjust ................................ 31
10.11 Thr cut function .................................................... 31
10.12 Idle down preset throttle position .......................... 32
10.13 T1-T4 trim adjust .................................................. 32
• Trim memory ...................................................... 32
10.14 Warning .............................................................. 33
10.15 Data reset ............................................................ 33
Contents
CONTENTS PAGE
11. MODEL (MDL) MENU (airplane) ........................ 34
11.1 Servo (see Page 23) ............................................ 34
11.2 Flight condition (glider only) ................................. 34
• Copy flight condition ........................................... 35
• Set delay time ..................................................... 35
• Change priorities ................................................ 35
11.3 Dual rate (ARF/EXPO) ......................................... 35
11.4 Programmable mixer ............................................ 36
11.5 Throttle curve/ Thr delay
(Power airplanes only) .......................................... 37
11.6 Aileron Differential ................................................ 37
11.7 Flaps settings ....................................................... 38
11.8 Aileron -> Camber Flap mixer .............................. 38
11.9 AILeron -> Brake Flap mixer ................................. 39
11.10 AILeron -> Rudder mixer ...................................... 39
11.11 Spoiler -> flap (Camber mix) ................................ 39
11.12 Elevator -> camber mixer ..................................... 40
11.13 Camber flap -> Elevator mixer .............................. 41
11.14 Rudder -> Aileron mixer ........................................ 41
11.15 Crow/ Butterfly mixer ............................................ 42
11.16 Trim mix ................................................................ 43
11.17 Gyro settings ........................................................ 43
11.18 V-Tail mixer ........................................................... 43
11.19 Ailvator (2 elevator with aileron) function .............. 44
11.20 Winglet Rudder settings ....................................... 44
11.21 Electric Motor settings .......................................... 45
11.22 Rudder -> Elevator mixer ...................................... 45
11.23 Snap roll function .................................................. 46
11.24 Airbrake mixer ...................................................... 46
11.25 Fuel MixXture adjustment ..................................... 47
12. LINKAGE Menu-Helicopter ................................ 48
• Rx outputs for helicopter models ........................ 48
12.1 Function ................................................................ 49
• Control Hardware configuration ......................... 49
• Select trim levers ................................................ 49
• Trim settings ....................................................... 49
12.2 Swash ring ............................................................ 51
12.3 Swashplate settings ............................................. 51
13. Heli Model menü ................................................. 52
13.1 Flight condition (Idle up) ....................................... 52
• Copy flight condition ........................................... 53
• Set delay time ..................................................... 53
• Change priorities ................................................ 53
2
CONTENTS PAGE
13.2 Pitch curve settings .............................................. 53
13.3 Throttle curve settings .......................................... 55
13.4 THR hold/ Autorotation settings ............................ 56
13.5 Swash mixer ......................................................... 56
13.6 Throttle mix ........................................................... 57
13.7 Pitch -> Rud (Revo) mix ....................................... 57
13.8 Gyro settings ........................................................ 57
13.9 Governor settings ................................................. 58
13.10 Fuel mixture settings ............................................ 59
14. Programming example for FX-20 Tx example 4 flapped glider wing........................... 60
15. Tx software update ............................................. 82
16. Installation and aerial positioning of
2,4 GHz FASST Rx .............................................. 83
16.1 Power Down mode range testing .......................... 84
16.2 Switch harness ..................................................... 85
16.3 Servo leads ........................................................... 85
16.4 Interference suppression filter .............................. 85
16.5 Servo installation .................................................. 85
16.6 Servo travel and arms .......................................... 86
16.7 Linkage installation ............................................... 86
17. Operational advice ............................................. 86
17.1 Switch on sequence ............................................. 86
17.2 Metal to metal interference ................................... 86
17.3 Brushed electric motors ........................................ 86
17.4 Electronic ignitions ................................................ 87
17.5 Rx battery capacity/operating time ....................... 87
18. Guarantee ............................................................ 87
19. Liability exclusions ............................................. 87
20. Homologation ...................................................... 87
21. Declaration of conformity .................................. 87
22. Compliance Information Statement .................. 88
23. Accessories ........................................................ 89
24. Service addresses .............................................. 91
25. End of life disposal ............................................. 92
Safety Notes, observe at all times
Please take the trouble to read right through these instructions before attempting to use the equipment for the first time, paying particular attention to the Safety Notes. If you are a beginner to radio-controlled model aircraft or helicopters, we recommend that you ask an experienced modeller for help, as you are bound to need support and advice initially.
This radio control system is designed and approved exclusively for use with radio-controlled models. If you use the equipment for any other purpose, Robbe Modellsport will accept no liability for the consequences.
SAFETY NOTES
Radio-controlled models are not toys or playthings in the usual meaning of the term, and young people should not operate them under fourteen years of age unless an experienced adult is available to supervise them. Building and operating these models requires technical expertise, manual skills, a cautious attitude and safety-conscious behaviour. Errors, negligence and omissions in building or flying these models can result in serious personal injury and damage to property.
The manufacturer and vendor of the equipment have no means of checking that your models are built and operated correctly, and for this reason we can do no more than bring these hazards expressly to your attention. We deny all further liability.
Technical faults, whether electrical or mechanical, can result in electric motors bursting into life unexpectedly, causing other parts to come loose and fly around at high speed. Switching on the receiving system when the transmitter is not active can also have the same effect.
In either case there is a serious risk of injury. Propellers, helicopter rotors and all other rotating objects, which are driven by motors or engines, represent a constant hazard and a potential source of injury. Avoid touching such parts at all costs. It is a sobering thought that a propeller revolving at high speed could cut off your finger.
Do not stand in or close to the primary danger area around the propeller or other rotating parts whenever the electric motor is connected to a drive battery. Take care to keep all other objects from making contact with revolving parts. Protect your radio control system from heat, dust, dirt and damp, and do not subject your equipment to excessive heat, cold or vibra-
Safety notes tion. Radio control systems should only be used in “normal” conditions, i.e. within a temperature range of -15°C to +55°C.
Use only the recommended battery chargers, and supervise the procedure when charging batteries. Please read and observe our safety notes regarding charging the batteries. Overcharging, or incorrect charging methods can result in the batteries exploding or bursting into flames.
Always maintain correct polarity.
Avoid subjecting this equipment to undue shock or pressure.
Check your system regularly for damage to cases and wiring.
If a unit gets wet or is damaged in a crash, it should not be used again even after you have dried it out and checked it thoroughly. The only safe course of action is to replace damaged items, or at least have them checked by the robbe Service.
Faults caused by damp or crash-induced shock may not be obvious to the layman, but after a short period of further use they may cause catastrophic failure. It is important to use only the components and accessories which we expressly recommend, and always use genuine robbe-Futaba connectors. It is not permissible to make modifications of any kind to the system components.
Note:
2,4 GHz FASST technology can be used for all model- aircraft and surface- (marine and vehicle) models.
ROUTINE PRE-FLIGHT CHECKS
• Always extend the transmitter aerial fully before operating your model, and check that it is firmly engaged in its socket.
• Ensure that the throttle stick is at the stop / idle end-point before you switch the receiver on.
• Always switch the transmitter on first, then the receiver.
• Always switch the receiver off first, then the transmitter.
• Carry out a range check before the flight or run.
• Have you selected the correct model memory?
• Check all the working systems. Ensure that the control surfaces respond to the stick commands in the correct “sense”
(right stick = right rudder etc.), and that the travels are as recommended.
• Are all the mixer functions and switches set correctly?
• Are the batteries sufficiently charged?
• If you are not sure of any point - don’t fly, as this would endanger yourself and anybody else at the site.
OPERATING THE MODEL
• Never fly over spectators or other pilots.
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• Do not fly in any way, which could endanger humans or animals.
• Never fly close to high-tension overhead cables or residential areas.
• Don’t operate your model in the vicinity of canals, locks or other public waterways.
• You must not operate your model from public roads, motorways, paths, squares etc.
Never operate your equipment in stormy weather.
Don’t “point” the transmitter aerial straight at the aeroplane when flying. The signal generated by the transmitter is at its weakest in an imaginary line extending straight from the aerial.
It is always best for the pilot to stand in a position where the long side of the aerial points towards the model.
INSURANCE
Ground-based models are usually covered by standard personal third-party insurance policies. To fly powered model aircraft you will need to extend the cover of your existing policy, or take out a specific policy. Check your insurance and take out new cover where necessary.
1. CONTENTS
Contents: FX-20 2,4 GHz NO. F 8072
1 FX-20 G 2,4 GHz FASST transmitter
1 7,2 V 3400 mAh LiPo transmitter battery
1 R-6108 SB 2,4 GHz FASST receiver
1 Switch harness with charge socket
1 12 V Lithium battery charger, 2 A
1 110 ... 230 V AC switch-mode PSU, for charging the main
supply
4
FX-20
RECOMMENDED ACCESSORIES:
Trainer cord FF9 > FF9
Trainer special cord
Flight simulator adapter lead FF9
Charge lead T8 FG
Receiver battery 4.8V 1400 mAh
Spare Tx battery LiPo 7.2V 3400 mAh
Wireless Trainer System
Rx charge lead
Transmitter case
Ali. Case for tray Tx
Stick switch FX-20
No. F1591
No. F1314
No. 8239
No. 8260
No. 4551
No. 4846
No. F1414
No. F1416
Joystick short
Neck strap mounting FX-30
Neck strap mounting FX-30 + hand rast
Senderpult FX-30 CFK
No. F9906
No. 8899
No. 8051 - 8053
No. F1526
No. 8384
No. 8381
No. 8491
2. GENERAL DESCRIPTION
With the FX-20 system the range of robbe Futaba console transmitters is extended downwards, so permitting a low-cost entry point to 2.4 GHz technology.<br/><li>The FASST system is a Spread Spectrum System with Frequency Hopping (FHSS).
2.1 FX-20 TRANSMITTER
• The FASST system is a Spread Spectrum system with Frequency Hopping (FHSS). It is therefore permitted to transmit a maximum power of 100 mW EIRP. This gives it adequate reserve even for large-scale model aircraft and jets.
• Maximum security from same-channel interference, virtually interference-free and insensitive to electrical smog.
• Focal point of the transmitter is the large, high resolution
128 x 64 Dot graphic display with backlighting for excellent readability.
• The elegant and clean design of the system is created using the new Cap-Touch-System. A contact-free capacitive sensor that will function like a 3D Hotkey. It has a smooth, nonporous display with no protruding user controls.
• Easy programming using the graphics driven user interface, the menu structure and operation are largely the same as the FX30 systems, genauso wie das moderne und praktische Gehäuse Design
General
• The software is in 8 languages: English, german, french,
Italian, Spanish, Czech, Russian or Dutch.
• The joystick coupling mechanism has twin ball bearings and is designed for Universal mode. They can be easily converted from „throttle left“ to „throttle right“ by the owner.
• The FX-20 transmitter features the new rotary stick trimming. This type of trimming combines the advantages of traditional analogue trims with those of digital trimming. With just one movement, the direction and size of trim required will be set and automatically stored.
• The linear slider controls are very practical to use for auxiliary control functions such as gyros, flaps or speed controllers.
• The system consists of ten channels (8 proportional and 2 switched) and these are all freely assignable.
• The transmitter is supplied fully equipped with 2 analogue rotary, 2 linear slide controls and 6 switches.
• Comprehensive software provides all the essential facilities and extensive functionality for power models, gliders and helicopters.
• Plenty of freely programmable mixers are available with a choice of 5-point curves for setting up very complex mixer functions.
• Integrated Trainer system with individual control function transfer. Freely configurable channel assignment for instructor and student.
• using an SD card, the owner can update the software to the latest version.
• Twenty internal model memories, with infinite expansion using SD card-3862 models= 2GB.
2.2 R-6108 SB RECEIVER
Full range 8/18-channel 2.4 GHz FASST receiver, slimline and lightweight for models with narrow fuselage/hull. With a serial bus (S-BUS) - system for up to 18 channels and so perfect for large scale model aircraft. Outputs 1...8 can have 8 traditional analogue or digital servos attached. The R 6108SB receiver has a switch to select between digital and analogue servos.
This makes the signal pulse for digital servos at the outputs 1-6 even faster, resulting in even shorter response time.
New: S-BUS output
Up to 18 of the new, programmable S-BUS servos or other
S-BUS components such as battery switch PSS2018, HC-3
Xtreme, gyro GY 520, etc. can be connected in series to this output. Using digital addressing, the servo will only react to information which has the correct servo address.
Compatible with 2.4 GHz FASST RF modules TM-8, TM-10,
TM-14 and FASST transmitters from 8 channel upwards and in Multi mode.
2.3 Receiver binding
General advice about 2,4 GHz Radio-control systems
The 2,4 GHz System operates differently to previous radios that work in the 27-40 MHz frequency band.
• The radiation of 2,4 GHz signals works in a straight line and therefore it is vital to maintain line of sight contact with the model.
• Large obstructions between Tx and Rx can reduce or block the signal.
• Close to the ground, the Tx signal is weaker than with 27-40
MHz radios.
• On misty days or wet ground can reduce the ground range considerably.
• If the model is close to the ground and there is an obstruction such as (person, vehicle, object etc.) between the Tx and Rx, than the range can be much reduced.
BINDING (EASY-LINK)
Pressing the “Easy-Link” button, automatically stores the unique code number of the Tx (130 Million codes). The receiver only will respond to the signal of the specific transmitter with this “Binding” process.
FX-20
RECEIVER STATUS LED INDICATION (R6008HS)
Off
LED green
Solid
Flashing
Alternate flash
LED red
Solid
Status
No signal reception
Off
Off
Receiving signals
Receiving signals but ID is unmatched
Unknown problem
• During binding, no other FASST System should be operated nearby.
• Place the transmitter and receiver close together (approx.
50cm or closer)
• Switch on Tx
• Switch on Rx power supply
• Hold the Easy Link button (ID Set) on the receiver for at least 1 second and release again to “bind” the receiver to the transmitter.
Key “ EASY LINK” LED
• When the binding has taken place, the Rx LED illuminates green. This fixed coupling of the transmitter to receiver offers the best conditions for an improved suppression of interference compared to traditional systems. Whereas, a digital filter can only filter out the control impulse of the associated transmitter, in this way interference and influences from other transmitter are very effectively suppressed.
• It is possible to “bind” several receivers to the same transmitter.
Should the “binding” of other transmitters be required, by simply pressing the Easy-Link button after switching on the power will re-bind the receiver to a new transmitter.
General
ICONVERTING FROM ANALOGUE TO DIGITAL SERVOS
The factory setting is set to “Normal” mode and suits the commonly used Analogue servos. To achieve a quicker reaction on channels 1-6, which leads to a further improved reaction time when using Digital Servos, use the following method. Setting of the digital mode:
1. Switch off the receiver after “binding”.
2. During the switching on of the Rx, press the Link/Mode button for 2-3 seconds, The red and green LEDs will flash.
3. Release the Link/Mode button. The monitor LED turns green.
4. Switch the receiver off, so that the settings are stored.
Converting back from digital to analogue mode functions in the same principle. The monitor LED flashes red and green to indicate the switch-over to analogue mode when pressing the
Link/Mode button. On releasing the button, the red LED will be illuminated.
Legend:
LED red: = Analogue mode
LED orange: = Digital mode
Note:
Channels 1-6 operate in digital mode, channels 7+8 always operate in analogue mode. The analogue-digital changeover also affects the S-BUS output, which is automativally processed by S-BUS and digital servos.
Analogue mode must be selected if analogue servos are to be operated at the S-BUS output via a PWM adapter.
Otherwise the higher frequency will be irreparably damaged the analogue servos! Double-check every new setting on your receiver!
Take care that during this process athat no other FASST transmitters are switched on in the local vicinity.
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2.4 CONNECTING THE SERVOS USING PWM
Connecting the servos and power supply:
R6108 SB 2,4GHz receiver (Rx)
Outputs 1...7: 1 ... 8 Proportinal channels for Servos.
Connection: B = Receiver battery / channel 8
The switched putputs DG1+DG2 are accessible on the 8 channel R-6108 SB receiver only via the S-BUS outputs (channel
9+10).
Note:
Connecting a large number of powerful or digital servos, the continuous current rating (3A) of the supplied switch harness will be insufficient. It will be necessary to use an appropriate high current power supply (the so-called battery backer) for the receiver and servos. Your dealer will be able to advise on suitable equipment
B = Connection
Receiver Battery
Channel
1 ... 8
Monitor LED
Receiver
Battery
8
5
6
7
3
4
1
2
FX-20
S-BUS CHANNEL ALLOCATION
In contrast to standard servos, where the receiver has a single
PWM pulse per servo channel, S-BUS systems no longer have classic individual servo channel alloocations.
Information relating to how far and in which direction the servo is to run is digitally coded, similar to the PCM system for transmitters. The pulse telegram additionally contains the direction and travel of all 18 servo channels as well as the channel address. Each servo is allocated a channel number and it selectes the channel number as well as the travel and direction information from the pulse telegram. It responds only to commands that contain the correct channel number. This digital filter increases the servos‘ immunity to interference.
The allocation of the S-BUS channel number can be ade in one of three ways:
1.
A channel number can be allocated to the servos also via the receiver. Use the following procedure:
Plug servo jumper
1. Plug servo jumper into „DATA“ socket at the receiver.
2. Switch on receiver.
3. The set mode is indicated by flash sequences
Mode A: red LED flashes 3 times
Mode B: green LED flashes 3 times
General
Output
1
4
5
2
3
6
7
8
Mode A
1
4
5
2
3
6
7
8
Channel
Mode B
9
10
11
12
13
14
15
16
4. To change the mode, press and hold the „LINK“ button for about 2 seconds. Changing the mode the red and green
LEDs will flash. releasing the „LINK“ button, the new mode setting will be displayed.
5. Switch off receiver and unplug servo jumper.
The servos can now be connected to the S-BUS output of the receiver via the S-BUS hub or V-lead. Check functions before starting up!
2.
The handy SBC-1 Programmer No. F1696 which can also be used to allocate channels to the S-BUS servos and S-BUS
PWM adapters is recommended on the flying field.
3.
Servo addressing can be carried out with the PC-LINK program which can be downloaded free of charge in the download section on the robbe homepage.
With this program you can additionally program functions such as servo mid-point adjustment, end-point adjustment, servo speed, start-off characteristics, etc. individually for each servo.
Note:
The USB adapter CIU-2 No. F1405 is required to program the servos and allocate the channel number via a PC.
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MIXED CONNECTION
FX-20 General max. curent 6A / 12 A continuous
CONNECTION TO S-BUS OUTPUT
Up to 18 (16 prop channels, 2 switching channels) of the new, programmable S-BUS servos can be connected in parallel directly to this output. Using digital addressing, the servo will only react to information which has the correct servo address
To use the S-BUS output, connect corresponding S-BUS servos via the S-BUS HUB No. F1697 or No. F1698 or V-lead No.
F1423 to the S-BUS connection at the receiver.
Note: Individual S-BUS servos can also be connected directly.
Note:
The maximum S-BUS channel count is 16+2. However, only the same number of channels as the transmitter posesses are available for use (currently 8+2 or 12+2).
Important:
A battery connected directly to the receiver can make available current at 3 A permanently and 6 A short-term.
Hubcable No. F1697
Hubcable 30 cm No. 88830030 max. current 6 A / 12 A continuos
HUB-4 with power current conection No. 8884
S-Bus
Connection
Accessories: max. curent 3A / 6 A continuous
A second battery connection should be made on to the connector strip of the receiver for higher power requirements. The current carrying capacity of the receiver increases from 5A to 10
A continuous. Further power connection for S-BUS are under preparation.
We recommend the use of the battery switch PSS 2018 No.
F1660 for higher currents!
The S-BUS PWM adapter No. F1695 makes it possible to use the new S-BUS system in existing models and servos. Adapter to connect 3 standard servos to the S-BUS. The signal is converted for each individual outputfrom S-BUS to PWM. The outputs can be configured with e the same or different channel numbers. Channel number allocation is made either using a PC with the PC LINK software, or independent from the PC using the handy S-BUS programmer SBC-1.
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FX-20
2.5 RECEIVER OUTPUT CONFIGURATION FOR AIRCRAFT
Rx output
1
2
3
4
5
6
7
8
9
Rx output
1
2
3
4
5
6
7
8
9
1 aileron
Aileron
Elevator
Throttle
Rudder
Retract free free only Multi ch.
-
1 aileron
Aileron
Elevator
Throttle
Rudder free free free only Multi ch.
-
Model type Power model
2 aileron 2 ail+1flap
Aileron Aileron
Elevator
Throttle
Rudder
Retract
Aileron 2 free only Multi ch.
V1 Spoiler
Elevator
Throttle
Rudder
Retract
Flap
Aileron 2 only Multi ch.
V1 Spoiler
2 ail+2flap
Aileron
Elevator
Throttle
Rudder
Retract
Aileron 2
Flap
Flap 2
V1 Spoiler
Tipo de modelo: Aeromodelo planeador
2 aileron
Aileron
2 ail+1flap
Aileron
Elevator
Throttle
Rudder free
Aileron 2 free only Multi ch.
V1 Spoiler
Elevator
Throttle
Rudder free
Camber
Aileron 2 only Multi ch.
V1 Spoiler
2 ail+2flap
Aileron
Elevator
Throttle
Rudder free
Aileron 2
Camber only Multi ch.
V1 Spoiler
2Ail+2flap+2brakes
Aileron
Elevator
Rudder
Aileron 2
Camber Flap
Camber 2
Brakes
Brakes 2
V1 Spoiler
General
Key: control terminology
1 Ail:
2 Ail:
2 Ail+1flap :
2 Ail+2flap
1 aileron
2 ailerons
2 ailerons + 1 camber flap
2 ailerons + 2 caqmber flap
2 Ail+2flap+2brakes: 2 ailerons + 2 flaps + 2 airbrakes/spoilers
Only Multi ch.:
V1 Spoiler only at Frequency “MULTI”
Virtual channel 1-4, used for control functions, e.g. Ailvator
NEW SYSTEM FOR FUNCTION ASSIGNMENT
The choice of model type serves as the basis for the mixer functions and the model type selection will automatically suggest the mixer functions and the channel assignment. We recommend that when possible, to retain these as it keeps an output layout standard. Nevertheless, any control input may be assigned to any channel.
The ‘FUNCTION’ menu will clearly display to which output the appropriate servo must be connected and which input will control it. On functions that require 2 or more servos, the relevant control will also be configured.
Within a model type, there is only a small variation in configuration; due to the number of control surfaces only the number of servo channels used will increase.
This is different when changing a model type. If the model type is for example changed from conventional tail to a tail with 2 servos (Ailvator) the function allocation will be forced to change.
This is also true with glider models, with and without motors, as well as for flying wing.
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3. TECHNICAL DATA
3.1 FX-20 TRANSMITTER
Control channels: .............................................. 8+2 channels
Frequency band: ...........................................2,4...2,4835 GHz
Alternative: ......................................................2,4...2,454 GHz
Carrier system: ..................................................................FSK
Data resolution: ........................................................2048 kHz
Power supply: .............................. 7,2 V LiPo-battery / 3,4 Ah
Power consumption with RF: ......................... approx. 220 mA
Dimensions: ..............................................205 x 220 x 55 mm
Weight (with battery): .........................................approx. 885 g
FX-20
4. FX-20 TRANSMITTER CONTROLS
Volume / rotary control “LD)”
Switch “SE”
Switch “SB”
Switch “SA”
3.2 R-6108 SB 2,4 GHz RECEIVER
Operating voltage: .................... 4,8 - 6 V (4-5 cells NC/NiMH)
Current consumption: ............................................. ca. 50 mA
Number of channels: .........................................................8/18
Data resolution: ........................................................2048 kHz
Frequency band ........................................... 2,4...2,4835 GHz
Alternative: ..................................................... 2,4...2,454 GHz
Frequency channels:...................................................... 36/22
Carrier system: ..................................................................FSK
Weight: ..............................................................................14 g
Dimensions: ...............................................47 x 25 x 14,3 mm
Temperatur range: ........................... ......................-15/+55 o C
Aerial lenght: .................................................... approx. 13 cm
System range:
Ground- Ground Range: More than 2000 metres (with receiver 1.5 m above ground level and visual contact)
-Ground - Air : More than 3000 metres range (with visual contact)
LED monitor
Linear slider “LS”
Throttle /Rudder stick
Throttle trim
Rudder trim
On /Off switch
LC-Display
General
Antenna
Volume / rotary control “RD)”
Switch “SD”
Switch “SG”
Switch “SH”
Linear slider “RS”
Elevator / Aileron stick
Elevator trim
Aileron trim
Key “LKN”
Key “MDL”
Cap Touch Sensor
Key “RTN”
Key “S1”
Key “SYS”
9
4.1 TURNING TRANSMITTER ON AND OFF
• Slide the main power switch on the Transmitter (Tx) to the right.
• The right hand red monitor indicates RF radiation after first monitoring the local RF environment.
• The Display shows the symbol for RF radiation
FX-20
4.3 STICK ADJUSTMENT
The FX-20 Tx has new precision gimbal sticks, fitted with ball bearings and long-life potentiometers to the latest industry standards. Emphasis has been placed on the best control “feel” around the neutral point of both stick axes.
EXTENDING STICK LENGTH
The stick length is fully adjustable and may be set to the optimum length to suit the pilot’s need.
General
4.4 LIQUID CRYSTAL DISPLAY (LCD)
The large, clear-view and high contrast LCD graphics monitor
(with 128 x 64 dots) supplies the user with all the necessary information required for programming and operation.
Upto 36 FASST transmitters may be operated simultaneously. If the band is full, then the Tx will not radiate RF and waits for a few moments to retry.
Note:
An SD-card increases the start-up phase time somewhat, because all the data must be read from the card.
Attention:
Do not turn off during the initialization phase (Left-hand monitor-LED flashes red), as this may damage the settings.
SWITCHING THE TRANSMITTER OFF
• Slide the main power switch on transmitter downwards
• The RF radiation will stop and the data stored in the working memory will be stored either in the internal memory or written to the SD-card.
If the Tx is switched on again during the power-off and memory storage phase, the data back up will be ignored.
4.2 LED Monitor
Two Status LEDs are located on the front face, which indicate the Tx status by means of a flash sequence.
LED on :
Tx RF radiating
LED on :
Tx switched on
LED flashes:
Teacher system in operation
LED flashes:
Tx battery low LED off:
RF switched off
10
• Loosen parts A and B
• Adjust stick length to the desired position
• Lock part A and B
Part A Part B
ADJUST SPRING CENTERING TENSION
The spring return centring force of the joysticks can be adjusted to suit the indivual control feel needs of the pilot. Slide the locking catch on the rear of the case towards the case top
(arrow). Using a small cross head screwdriver, adjust the spring tension as shown.
KEY-LOCK
So that no unwanted changes to the programs occur during flight operation, the S1 key serves also as a key-lock. To lock/ unlock the keys, press S1 key for 1 second. (See illustration).
The complete navigation description will be found on page 16.
Key Lock
4.5 DIGITAL TRIM LEVERS
The 4 digital trim controls for the sticks (T1…. T4) are rotary trims located near the sticks. You can freely assign these for use as trims, as other control inputs or as inputs for mixer functions.
Each time, the trim value to the default Step change. Reached the neutral position of the trim-(Center) or the neutral run over, so an acoustic signal.
The current trim position is a graphic in the Start display displayed.
T3 T2
FX-20
4.6 ACTIVATION OF THE STICK RATCHET FUNCTION
(STICK MODE)
Aircraft models will usually have a ratchet fitted to the throttle stick to hold it in any set position. To do this, disconnect the self-centring of the throttle stick by tightening the cover plate screw on the relevant stick. This will disconnect the stick selfcentring. Additionally, the throttle ratchet is already fitted to this plate, which gives an immediate ratchet function. To make the ratchet “softer”, carefully bend the ratchet plate upwards.
For helicopter pilots, an additional friction plate is included to replace the ratchet. This is screwed to the inner face of the joystick plate.
In the System menu, sub-menu “H/W Setting”, select STICK
MODE. If mechanically changing the stick mode to Mode 1, 3 or 4 i.e. changing from the, as delivered, Mode 2 with throttle on left hand stick, then the software must be also updated accordingly see also STICK MODE on page 23.
Note:
When changing to a new model memory, the last stored „Stick
Mode“ setting is automatically used.
General
4.7 CHANGING THROTTLE FUNCTION
The Tx is delivered as Mode 2 as standard, left stick fitted with ratchet throttle and right stick with self-centring. Either stick may be chosen for use as a positionable throttle control.
Remove the control cover plate by loosening the marked screw and transfer to the other stick unit, refit the screws.
There are four different Stick Modes (Mode 1-4):
Unscrew right hand stick cover plate and rotate 180 o
Screw cover plate to left stick unit
T4 T1
MODE 1:
Aileron right
Elevator left
Throttle right
Rudder left
MODE 3:
Aileron left
Elevator left
Throttle right
Rudder right
MODE 2: (as delivered)
Aileron right
Elevator right
Throttle left
Rudder left
MODE 4:
Aileron left
Elevator right
Throttle left
Rudder right
11
4.8 ROTARY CONTROL KNOBS
The rotary “volume” knobs LD and RD serve as analogue control inputs, which are freely assignable to chosen functions.
They possess a fine ratchet and give an acoustic beep when reaching their mid- position.
The knobs are marked to give also an optical indication of their position.
FX-20
4.10 AERIAL
To achieve the optimum radiation patter, the moveable Tx aerial should be positioned so as not to “point” directly at the model (see photo).
Never point the aerial at the model, as the aerial longitudinal axis has the weakest radiation pattern!
Never touch the aerial during flight as this much reduces the radiated power.
General
4.11 SD CARD MEMORY MODULE
An SD card up to 2 GB may be obtained separately to allow different models to be stored. We recommend using a fast SD card, for example from Sun-Disk. It is possible to use SD cards from other manufacturers in the Digital Camera industry, and due to the large variety of types, it is not possible to guarantee their problem free operation.
IINSERTING THE SD CARD
Insert and change the SD card as follows:
• Switch off Tx
• Open the battery cover by sliding to the right hand side
• The SD card slot will now be visible
Hold the SD card, so that the nose lock faces left. Insert card fully into card slot, it will be located when a click is heard.
software update switch SD Card slot
4.9 LINEAR SLIDER CONTROLS
Both the slider controls can be used as trim controls or as control inputs. They have a neutral detent and give an acoustic beep when reaching their mid-position.
locking lug
FORMATTING SD CARD
Before you can write data to the SD card, it is necessary to format the memory first as follows:
• Plug card into Tx and switch on power. The following message will appear: THIS CARD HAS NOT BEEN INITIALI-
ZED. CANCEL / FORMAT
• If the FX-20 is ready to format, move the cursor to [FOR-
MAT] and touch the RTN button. This needs to be confirmed with OK, (To cancel formatting, move the cursor to
[CANCEL] and touch the RTN button).
• FORMATTING CARD will appear in the display and progress indicated by a bar diagram.
• Dependent on the size of the card, this process can take a few minutes.
• Following successful formatting, FORMAT END will appear in the display.
• The Tx will automatically return to Start Menu
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REMOVING SD CARD
Press lightly forwards on the end of the card until you hear a click. The SD card will slide from the slot and can be removed.
Note:
Do not change the card during the read or write process as this can lead to loss of all data on the card.
LOADING DATA STORED ON A PC
A separate SD card reader/writer is needed to load the software update from a PC. These are available from good electrical and digital camera stockiest.
The Data on the SD card are not in Windows format and therefore are not visible on the PC.
Special software “Futaba File System Utility” to manage, (Save and delete) the Data may be found in Download area of the robbe Support Server http://www.robbe.com/rsc.
FX-20
DATA SECURITY
The lifetime of an SD-card is more than 100.000 write cycles.
Should it be that your card read/write device is used a lot for a long period, it can lead to difficulties with read/write of the data, and the card will need replacing? We recommend that you make a back up copy of the data, as we cannot take any responsibility for the security of any data you may store.
The Data storage on the SD-card as well as in the Tx is made without any power required. Changing the Tx battery has no effect on the stored data.
La memorización de los datos en la tarjeta SD se realiza sin corriente. Al cambiar la pila de la emisora, los datos quedan grabados.
General
5. REMOVE/CHANGE THE TRANSMITTER BATTERY
• Turn Tx off
• Unlatch the back panel at the top and fold it open, taking care not to damage the lower locating lugs.
• Undo the retaining bands.
• Disconnect the battery connector from the transmitter by pulling on the connector itself (not on the wires).
• When re-installing the battery in the transmitter please note that the battery lead must face the right.
• Plug in the connector, taking care to maintain correct polarity.
• Re-fit the retaining bands.
• Engage the lower locating lugs of the back panel. Fold the back panel up into the correct position and engage the top latch. Ensure that no wires are snagged between the panels.
MEMORY CAPACITY
Internally, the Tx has 20 model memories as standard. An optional SD card can be used as a medium to expand the memory capacity, and the Tx can accept cards from 32 MB upto 2 GB.
One SD card with 2GB can have 3862 model memories stored.
The SD card may also be used as a medium for the user to upload any software updates from a PC to the Tx. The software for this is in the Download area of the robbe website home page.
Update disscription see page 64
ADVICE FOR USING SD CARDS
• Don’t remove the SD card during the memory back-up process.
• Keep strong magnetic and electrical fields away from the
SD card. Data can be corrupted or lost.
• Keep out of humid conditions and away from direct sunlight.
• Do not allow dirt, water or other fluids to come into contact with the card.
• When inserting or removing the card, always grip it by the corners.
• Always insert the card the correct way around.
• Only insert or remove when Tx is turned off.
Note:
Never remove battery when the monitor LED is flashing. This could cause damage to the stored settings and the memory itself. If this occurs, don’t use the Tx and return to robbe service department.
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6. RC CHARGER, CHARGING THE TRANSMITTER
BATTERY
The RC charger included in the set is suitable for charging 7.4
Volt Lithium batteries, and features a voltage-controlled automatic cut-off circuit (8.4 Volts). The charge current is approximately
2 A.
It can be connected:
• to a 12 V car battery or 12 V DC mains PSU via the car cigar lighter adaptor (supplied)
• or to a mains socket (110 … 230 V AC) using the mains adaptor (also supplied).
Notes on handling and charging the transmitter battery
• Connect the 230 V mains charger to a mains power socket.
• Connect the plug to the 12 V Lithium charger.
• The red monitor LED will now light up.
• Locate the charge lead attached to the 12 V charger, and connect it to the transmitter.
• The charge monitor LED now lights up red to indicate that charging is in progress; the charge current is around 2 Ampere.
• The charge time is around 3.5 hours if the battery is initially discharged.
• When the charging is nearly finished (90%), the charge control
LED changes to green. The battery can be removed from the charger and the the process takes approximately 3 1/2 hours to charge a discharegd battery (No 4846).
• The remaining charge (100%) is complete after a total chargetime of 5 hours.
FX-20
Caution:
The battery pack (No. 4846) has an integral Equalizer- and Protection circuits, which protect the cells from overcharging. To save energy, the battery should be removed from the charger after 8 hours.
The battery must only be charged using the RC charger supplied in the set! Chargers such as the Power Peak Infinity and similar are not suitable, as these devices are designed for high cell-count packs, and generate a very high voltage at the cut-off point, which could destroy the protective battery circuit.
• Li-Poly cells feature an extremely low self-discharge rate of around 0.2% per day, and for this reason they can be stored for long periods without problems. However, deep discharging must be avoided, as the pack will sustain permanent damage in the form of loss of capacity if discharged too far (the protective electronic circuit avoids this). After about five months of storage - but at the latest when the pack voltage falls to 2.5
Volts / cell - it is essential to recharge the pack. Before any protracted period of storage you should recharge the battery to at least 50% of nominal capacity. After about five months the pack should be recharged again.
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7. MENU STRUCTURE AND NAVIGATION
The FX-20- navigation is logical and easy to use. The „CAP
TOUCH SENSOR“, work as user controls.
The Menu-Structure is divided into three separate main menus,
System (SYS)-, Linkage (LNK) - and Model (MDL). From the individual menus, one can choose from the different data sub menus.
FX-20
• The S1 key is to leaf through page 1/2 to page 2/2 of the selection menu levels.
Example: Page Number
Navigation
• To lock the CAP TOUCH SENSOR from accidental use, press the S1 key for 1 second when in the Start Display.
The key lock symbol will appear in the display as illustrated below.
1Sek.
• To unlock, press the S1 key again for 1 second.
• Holding the S1 key for longer than 1 second in a sub menu will return you to the Start Display.
1x
1x
A few of the selection and data menus have sub menus with more than one
“page”, e.g. the Modulation selection menu is accessible directly from the Start display. (See also the Start display description on the next page).
Note:
Since ignition spikes can interfere with the Cap Touch Sensor, always keep the transmitter at least 70 cm away from a running petrol engine!
• To enter the menus, double tap the “keys”- System (SYS)-,
Linkage (LNK) - or Model (MDL) –Menu, of the CAP TOUCH
SENSOR. One can also enter Servo Monitor direct from the sub menus by double clicking on the „SYS“ key.
• The CAP TOUCH SENSOR is fitted with 4 user functions.
• To confirm a selection, press “RTN”, thereby giving an
“ENTER- command”. Touching the “RTN” key for a longer period will return you to the factory default settings.
• A circular scrolling motion on the sensor outer ring changes the settings and will also navigate through the particular menu items for selection.
• A clockwise scrolling movement will increase the data input values and anti-clockwise will decrease them
2 x
To return to the previous level, touch the “RTN” key once.
1x
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FX-20
8. HOME SCREEN/ START DISPLAY DESCRIPTION
The most important information about transmitter programming is displayed in the Home/Start Display. These direct menus can be accessed direct from the Start Display. Scroll the „CAP TOUCH SENSOR“ to highlight the required menu and touch the “RTN“ key
(see page 16) to select the relevant data entry menu.
8.1 START-DISPLAY FOR ALL MODEL TYPES
Username Timer 1
Display field of
Stopwatch 1. Mark and confirm to enter the ST1 adjustment menu.
Timer 2
Display of Stopwatch 2,
Mark and confirm to enter the ST2 adjustment menu.
Large Stopwatch
Select and mark this field to enlarge the stopwatch to full display. To reset to small size, confirm again with “RTN“.
Start / Stop Timer
Highlight and press
„RTN“ for 1 second to reset time.
System-Timer
Shows operating time in hours, minutes and seconds. Mark and press „RTN“ for 1 sec. resets the user name time to 00:00.
SD card indicator
Voltmeter
Voltage drops below 6,8 V and an alarm sounds. Operation must cease as soon as possible.
Model name
Mark and confirm the model selection menu
NORMAL
Model-Timer
Shows operating time in hours, minutes and seconds. Mark and press „RTN“ for 1 sec. resets time to 00:00.
Trim memory
RF type indicator = On
Reduce in size
Modulation indicator
Multi / 7channel
Mark and confirm to enter value adjustment menu RF type indicator = Off
Active Flight Condition indicator
(Only in Glider and Heli mode) Stick trim position indicator
Display
16
8.2 CONTROL INPUT / SWITCH SELECTION MENU
The FX-20 software contains a comprehensive control input selection menu. Virtually all functions can be allocated to any control input. It doesn’t matter whether they are for a switched or proportional control or a flight condition. The appearance of the selection menu is always the same.
As soon as a function is selected and confirmed with “RTN”, the following Hardware Selection (H/W SELECT) menu will appear. Please note that this menu differs somewhat from function to function, according to the application, the display and selection changes according to the selected application. The example shows the switch selection menu for the “programmable mixer” function. All relevant controls, switches and trim buttons are active and displayed.
J1...J4 = Control stick axes 1...4
SA...SH = Switches A...H
LD...RD = Left/Right hand rotary knobs
LS...RS = Left/Right hand linear sliders
ON/OFF = Switch position selection
T1...T4 = Digital Trim levers
SI...SJ
= optional stick switches
Highlight the required switch or controls and confirm with the
‘RTN’ key. After a switch has been selected, move the cursor to the “ON/OFF” field and define the switch position.
FX-20
If a control stick or proportional control were selected, more functions can be adjusted in the following display.
SET
To set the switch position, move the desired switch to the required position and move the cursor to SET and press “RTN” key. The switch point is now indicated on the displayed bar chart.
ON / OFF
This menu defines the switch direction sense, „NORM“ Normal or „REV“ reverse direction.
LOGIC-FUNCTIONS
Switch selection
MODE:
LINEAR
This setting divides the control area into separate ON and OFF zones (see above bar chart graphic). Dependent on the control position, the function is switched on and off.
SYMMETRICAL
Both switch points are symmetrically positioned about the control centre position. A switch position will be created as soon as the control value exceeds the upper or lower limit values.
MEMORY
In the lower section of the display, the switch style key (OFF) or (ON), are defined.
Exemple:
Taster aus Ruhestellung einmal in die getastet Position und wieder zurück in die Ruhestellung bringen = Funktion eingeschaltet.
Taster nochmals in die getastet Position und wieder in Ruhestellung bringen = Funktion ausgeschaltet.
Certain functions, such as flight condition can be also operated/switched with a logical cascade of two switches; this is the so-called Logic-Function.
Select switch MODE (SINGLE) or with a logical coupling
(LOGIC).
Here are the following functions available:
• AND: Serial coupling of two switches
E.g. „SA AND „SB“ activate a function.
• OR: Parallel coupling of two switches
E.g. „SA“ OR „SB“ activates the function.
• EX-OR: EITHER -OR coupling or exclusion of defined swit-
ches. E.g. EITHER „SA“ OR „SB“ will activate the
function.
A sub menu will appear to confirm the switch position, the example shows the switch, ‘SB’.
17
FX-20
• Time setting
Move the cursor to the [ALARM] item and touch the RTN button to switch to the data input mode. Set the time by scrolling the touch sensor. [00]: [00]: [min]: [sec]. The maximum time setting is 59:59 (min: secs). Touch the RTN button to end the adjustment and return to the cursor mode.
• Switch setting
Move the cursor to the item of the switch you want to use for the timer. One can use a switch to:
- RESET clock to zero.
- Start/ Stop the timer.
To set-up this timer mode, navigate using the „CAP TOUCH
SENSOR“ to „MODE“. Touch „RTN“ to select. Then scroll the sensor to „MODL“ mode. The seconds and one-hundredths display will be removed and only hours and minutes will be appear.
Stopwatch
8.3 TIMER-SETTINGS (Stopwatch)
Using the Timer-Menu, you are able to make all adjustments to the electronic timers. The timers are displayed in two windows of the display. You have permanent access to, for example, the total flight time as well as the motor run time of an electric model. The timers can be individually adjusted for every model.
Changing model memory will automatically load the custom settings for each model. There is a choice of two timer operation modes; Count Down- (DOWN) and Count-up timer (UP).
Selecting “UP‘- timer, a maximum flight time may be entered, e.g. dependent on tank capacity or the battery capacity. As soon as the Timer is started, the time counts backwards, starting from the entered value. The time remaining will be displayed.
The Count-up timer starts at ‘0’ and displays the time since activating the switch. During the last 20 seconds, an acoustic signal sounds at 2 second intervals, in the last 10 seconds of the programmed time, the stop watch alarm sounds every second. This is followed by a continuous tone for several seconds after the programmed time has elapsed; the time will continue to run with a negative value.
Mark with the „CAP TOUCH SENSOR“ the ‘TI1’ and „TI2“
Functions in Start-display and confirm selection with “RTN”.
The settings are entered here for TI1 and TI2. Mark the desired function and confirm with the ‘RTN’- key. Timer 1 will be displayed as below:
Other timer options can also be linked to the same switch, access the switch setup screen by touching the RTN button. Select the switch and ON direction.
• Alarm Piepser
By using the arrow, the alarm beeper settings can be set as required.
In „DOWN“ mode and with the arrow pointing towards the bottom, the beep sounds one minute before the set time is reached.
In „DOWN“ mode and with the arrow pointing towards the top, the beep sounds 30 seconds before the set time is reached.
• Select MODE (Count DOWN or UP)
Firstly you must choose whether the active Timer will function as a Count UP or Count DOWN stopwatch. To adjust, mark the relevant field and adjust setting with the “CAP
TOUCH SENSOR“.
To reset the timer, the „RESET“ switch can be operated. There is also the possibility, to activate ‘RESET’ oft he relevant timer in the Start Display and confirm by pressing ‘RTN’-key.
• Memory Function
Activating this („ON“) stores the last stop time when changing model memories or turning off transmitter. When switching on again the stored time value will be used. This is useful to record the total running time of a motor.
• Change the preset time
Timer1 and/ or Timer2 can be used to store model memory timers this has the advantage that this Timer can count up to 99 hours:59 minutes compared to a normal model memory timer that can only count up to 59:59.
Note:
The FX-20 Tx has an automatic Timer, which reminds the user how long the Tx has been switched on. If, after 30 minutes, there has been no control input operation of sticks, switches etc., an alarm sounds. Move any control, the alarm will be switched off, and the timer is reset to zero, if required, turn off the transmitter.
18
9. SYSTEM-MENU
The System Menu sets up functions of the transmitter: This does not set up any model data and the applied settings are valid for all model memories. The exception is the Trainer system, which will be adjusted for each model memory.
The exception is the Trainer system, which can be set individually for each model memory.
Call the system menu shown below by double clicking touching the SYS button twice at the home screen, etc..
Scroll the “CAP TOUCH SENSOR” to select the function and the following display will appear:
2 x
TRAINER:
DISPLAY:
USER NAME:
H/W SET:
INFO:
Starts and sets the trainer system.
LCD and backlight adjustment
User name registration
H/W reverse and stick mode
Displays the program version, memory,
SD card information, product ID, and language selection.
Additionally, the user preferred language can also be selected.
9.1 TRAINER SYSTEM
FX-20
The FX-20 transmitter is fitted with trainer jack socket on the left side of the transmitter case. This is also suitable when using a flight simulator.
The Trainer system makes it easy for beginners to learn their flying skills under the supervision of an experienced instructor.
Connect the two transmitters using the correct trainer cord, which is available separately as an accessory from your dealer. The FX-20 transmitter can be used as either as the instructor or as the student transmitter.
Please take note of the following:
With 12+2 channel student transmitters fitted with TM-14
Module or G3-Modulation, the modulations can be selected to be either 8- or 12-channel.
• With all other student transmitters, 8-channel PPM (FM)
Modulation must be selected.
• Connect Instructor and Student transmitters together with the appropriate Trainer Cord.
• Turn on Student transmitter.
• Dependent on the instructor transmitter type, the student transmitter will be powered up when the trainer cord is connected. To stop any unwanted RF transmission from the student transmitter occurring, remove the RF module or; if using 2,4 GHz, switch the transmitter to Trainer mode so that the RF transmission is turned off!
Important note:
Trainer operation with other robbe-Futaba radios can only be made with transmitter fitted with the new, rectangular 6 pole Micro Trainer Socket.
Transmitters fitted with 6Nx or 2S Lipo batteries will be powered directly through Trainer Cord No. F 1591. (e.g. T12FG,
T12Z, T14MZ, FX-30, FX-40). Other transmitters with 6-Pole-
Micro-Trainer jacks and an 8-cell NC/NiMH battery will require a special trainer cord No. F1314. This is fitted with an integrated voltage converter (6 cells to 8) and stops the low voltage alarm from sounding. (e.g. T4EX, T8 FG Skysport
T4YF, T4EX, T6EX, T7C, T9C, T10C).
The FX-20 transmitter can be used either as Instructor or Student transmitter with any of the wide range of transmitters from the robbe/Futaba range. There are a variety of transmitter trainer cord combinations:
FX-20 transmitter may be used as instructor transmitter with the following student transmitters:
Instructor
FX-20
FX-20
Student
Skysport T4YF, T4EX,
T6EX, T7C, T9C,T10C
T8FG, T12Z, T12FG,
T14MZ, FX-30, FX-40
System Menu
• Check all functions are working correctly, operate Trainer switch and check the student transmitter has full control.
• After releasing switch, the control must return immediately to the instructor transmitter.
The software may be so set, so that either the student or the instructor transmitter has control of the mix functions for the model. Alternatively, MIX operation can be used where both transmitters have the mix function to control the model.
Trainer cable
Special Trainer cable
No. F 1314
Trainer cable
No. F1591
For a wireless 2,4 GHz Trainer operation, we recommend the Wireless Trainer System 2,4GHz No. F1414.
19
9.2 TRAINER
Highlight and select the „TRAINER option in System menu and confirm with “RTN”.
On the 4 pages (1/4-4/4) of the „TRAINER” menu, all basic settings for the Trainer System will be made.
TRAINER-SYSTEM AS INSTRUCTOR TRANSMITTER
On page 4, there are the following options available:
• ACT/INA:
ACT: Instructor function turned on
The display switches between „ON“ and „OFF“ depdent, the switch is operated
INA: Student function switched off
Mode setting, ‘ACT’ = Instructor function turned on, ‘INA’ =
Student function switched off
FX-20
• SWITCH:
Select the Trainer switch to be used to transfer control to/from the student transmitter. Mark and confirm this option. The next sub-menu can be used to define switch operation direction.
• 12/8 channel: Switch from 12 to 8 channel operation.
System Menu respective transmitter.
This mode will hand over the relevant functions to the student transmitter. Thereby, the student transmitter uses all the mixer settings of the student transmitter which are needed for correct control of the model, when switching control to the instructor, all mix functions from the student transmitter are used. Model control is passed between both transmitters dependent on trainer switch position.
• MIX:
The model is controlled by signals from the instructor and student transmitters. (Reset the student‘s model data to the default condition.) The instructor and student control the model using the setting and mixers within the instructor transmitter.
After making these basic settings, you can now set for each channel whether after switching over; the student transmitter operates alone or in MIX operation together with the instructor transmitter. The different modes can be selected separately for each function; a combination of modes for the different functions is also possible.
Navigate to the channel to be changed in the ‘MODE’ menu.
Scrolling the „CAP TOUCH SENSOR“ the following possibilities can be set.
STUDENT CHANNEL CONFIGURATION
This is used to define which control channels are passed over to the student transmitter, also suitable for stick mode (Stick
Mode) 1/2 or 2/4. It is also possible to leave control of virtual channels with the instructor, which previously was not possible with Trainer systems. To select this function, use the „CAP
TOUCH SENSOR“ to scroll to the „STU.CH“ item and confirm with „RTN“.
Example:
„STU.CH“ CH2 will be transferred to instructor channel 1 Aileron.
• OFF:
This channel will not be transferred to the student transmitter, and control will remain always with the instructor.
• FUNC:
FUNC mode (function mode): The model is controlled only by signals from the student transmitter with all the instructor ‚s setting (including all mix settings). (Reset the student‘s model data to the default condition.) Switching between instructor and student transmitter passes flight control between the transmitters.
• NORM:
The RF transmission is, effectively, switched from the instructor to student transmitter. Each uses the function settings in the
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TRAINER OPERATION AS STUDENT TRANSMITTER
To configure the transmitter for use as a student transmitter, the Trainer system must be turned off and the individual functions set to “OFF”.
FX-20
9.4 DISPLAY SETTINGS
The adjustment menu “DISPLAY” is used to adjust contrast, brightness and the display illumination time.
DISPLAY CONTRAST ADJUSTMENT
Entering the number of channels is important and is dependent on which instructor transmitter is being used. The correct channel setting, (7CH/MULTI) needs to be selected according to which instructor transmitter is used.
9.3 OPERATION WITH A FLIGHT SIMULATOR
To be able to operate the T8 FG transmitter with a flight simulator, please use the accessory adapter lead No.8239.
To save battery power, the RF modulation should be switched off when using the flight simulator.
RF modulation switched off
• Hold the „RTN“ key when switching on the transmitter.
Select RF OFF and confirm with RTN.
Activate the “CONTRAST” item and change the contrast setting by scrolling the „CAP TOUCH SENSOR“. Scrolling left reduces the contrast, and to the right increases contrast.
To reset the contrast to factory setting, select and mark the item and press the ‘RTN’-key for 1 second and the original setting will be displayed (5) again.
DISPLAY BRIGHTNESS ADJUSTMENT
Depending on the background light, you can adjust the display brightness to suit your needs. The adjustment ranges from
„OFF“, 1 to 20.
ILLUMINATION PERIOD OF THE DISPLAY
The illumination period can similarly be set and ranges from
„OFF“= always turned off“, to „10-240“ seconds. To save battery power, turn the LCD brightness off. The factory setting is
10.
RF-modulation = Off
System Menu
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9.5 USER NAME
This allows you to enter your own name. This will always appear in the Start Display.
USER NAME
Scroll to user name and confirm with “RTN”, An alphanumeric field will now appear on the display to be able to enter the name.
FX-20 of the line and displays the original name.
ENTER:
The „ENTER“-command serves to confirm and accept the entered data.
The „ARROW“- command serves to control the cursor in the user name.
DELETE:
The “DELETE”- command deletes single characters.
Interrupt:
To be able to interrupt and return to the menu, navigate with the „CAP TOUCH SENSOR“ to the “USER NAME” menu and confirm with the „RTN“ - key.
Entry is alphanumeric.
The user name can be up to 10 characters long (including spaces). First highlight the character to be changed with the
„CAP TOUCH SENSOR“, then select „DELETE“ to delete the character. Now select the correct character with the “Cap
Touch Sensor” and confirm with ‘RTN’-key. The new character will now be displayed.
To modify an existing name, select the appropriate „ARROW” function. Now pressing the “RTN” key allows the cursor to move in the desired direction. To delete the character, click the cursor on the character prior to the one to be deleted, using the „CAP TOUCH SENSOR“, change to “DELETE” and confirm with “RTN”.
To accept the name, move the cursor to “ENTER” and confirm with “RTN”.
Command function description:
BACK:
With the “BACK”- command, the cursor jumps back to the start
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This means:
• NORM:
The stick works with a normal mode of operation
• REV:
The stick works with a reverse mode of operation
System Menu
9.7 CHANGING STICK MODE
After changing the throttle stick ratchet in 4.6, the software must be updated with the new selected stick mode. The software supports three further stick modes in addition to the factory default, mode 2. Therefore, you may set the system to suit your chosen familiar stick mode. The servo outputs on the Rx remain the same, but to ensure all other functions work correctly, the stick mode is changed as follows:
1. Select [STICK MODE] in System Menu and access the setup screen shown below by touching the RTN button.
2. Move the cursor to the „STICK MODE“ item and touch the
RTN button to switch to the data input mode.
3. Select the mode. The display blinks. When the RTN button is touched, the stick mode is changed. (To terminate the mode change, touch the S1 button.)
9.6 H/W SET/ CONTROL SETTINGS
Control reverse
This function reverses the operating sense of all controls inputs and switches (H/W REVERSE). The hardware reverse means that the sense of the control input will be reversed. The displayindicator (percentage value/ symbol) does not change.
We recommend leaving the setting on NORM, as long as no special requirements are needed. This option is designed for special cases, where pilots have specific needs to reverse a control to suit their flying style, e.g. pulling the throttle stick for more power. With the „CAP TOUCH SENSOR“, highlight the
‘H/W SET’ Option in System-Menu and confirm selection with
“RTN”. Then, highlight „H/W REVERSE“ and confirm selection.
Mode1: Aileron /Throttle right, Elevator/ Rudder left
Mode2: Aileron/ Elevator right, Throttle/ Rudder left
Mode3: Rudder/ Throttle right, Elevator/ Aileron left
Mode4: Rudder/ Elevator right, Throttle Aileron left
9.8 SWITCH - SWITCHTYP Assigment
There are different versions of the toggle switches available , 2 or 3 position, biased momentary or locking, or, a combination therof. Push button or rotary knobs (potentiometers) can be fitted instead of the factory installed switches. Special switches with the correct connector plugs are available separately as an option. If it is required to use stick switches, these are defined as „SI“ and „SJ“ in the system.
9.9 INFORMATION
This menu has information about the product serial number, language, software version, geographical area and model memory.
Serial number:
Language:
Version:
Area:
The transmitter serial number
Choice of German, Dutch, French,
Czech, Russian, Italian, English and
Japanese languages.
The Version number of the user software can be seen in the field “Version”.
Displays the Area Code for the homologated area.
Modl Memo: As soon as a SD-card is fitted to the transmitter, the number of model memories in use will be displayed (Model data).
The transmitter can accept SD cards up to 2 GB= 3862 Models.
Should no SD-card be used, then there will be no display.
Example.: 49/3862
Where 49 is the number of memories in use and 3862 is the total memory capacity available on the SD-card in use.
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10. LINKAGE-MENU
The Linkage Menu is made up of functions, which perform model addition, model type selection, frequency setting, end point setting, and other model basic settings. Their data will be stored within a model memory in a separate memory.
The linkage menu is described in detail below:
Linkage Menu
Idle Down: Lowers the idle speed of the engine
Trim-Adj: Trim step adjustment + Trim memory
Mix Alarm: Warning of any mixers
Data Reset: Reset data to factory default
Note:
Dependent upon the chosen model type, there are some small differences in the individual displays in the airplane, glider and helicopter linkage menus.
2 x
The S1 key is used to move between display 1/2 and 2/2.
Scrolling the Cap Touch Sensor over the last position, will automatically switch to the next page. The selection takes place by scrolling the Cap Touch Sensor in the required direction.
The second linkage menu is described as follows:
10.1 SERVO
The „SERVO“ menu shows the servo throw, which have been adjusted graphically on a bar chart with a percentage value.
Select [SERVO] in the Linkage menu by using the CAP Touch
Sensor and access the setup screen shown below by touching the RTN key.
switched channels 9 + 10
1x
The following function options are:
Servo: Servo monitor, which displays the servo test and operation position,
Model Sel: Select model memory, Model addition, call, deletion, copy, and model name setting
Model Type: Model type, wing type, swash type, etc. selection
Frequency: FASST mode selection and area mode selection
Function: Channel assignment of each function can be
changed
Sub Trim: Adjusts the neutral position of each servo
Reverse: Reverses the servo travel direction
Fail Safe: Fail-safe function and battery fail safe function setting
End Point: Servo travel adjustment and limit setting
THR Cut: S tops the engine safely and easily (airplane and helicopter only)
Throw display in percent
The Servo test has 3 different modes:
Servo test (OFF)
This mode will display the current servo position (travel and position) to manually check mix functions and throw settings of the individual servo channels.
Operate the chosen control. The display will show the servo throw as a bar chart and as a percentage.
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Servo test operation
Neutral Position “Neutral”
The transmitter will centre all channels. This is ideal to check that servos and arms are in their neutral position when adjusting linkages.
Scroll the „CAP TOUCH SENSOR“ in Test mode from the
„OFF“ to ‘NEUTRAL’ field.
Automatic Servo test “MOVING”
This mode starts an automatic Servo test, which moves all channels from one end point to the other. The Function is ideal to test the Servos or their maximum control throw.
With the “CAP TOUCH SENSOR”, move the cursor to the [MO-
VING] button and press the RTN key to confirm.
Important note:
When usin gthe MOVING function, make sure that no
MOtor is connected during the test, since this can start suddenly without warning and cause personal injury.
Note:
During the Tests, the servo throw limits will apply. All previous settings of Dual-Rate, End Point etc. will also be applied to the servo control.
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10.2 MODEL SELECT
As well as selecting the model memory data, this menu will also be used for the entire handling of model data, such as creating, copying, deleting and renaming model memories.
A model memory occupies approximately 500 kB, and up to
20 Models can be stored internally, and on a 32 MB SD card- approximately 60 Models. The transmitter can manage an SDcard up to 2 GB; therefore approx. 3862 Models can be stored.
Note:
Make a safety back-up copy of your model memory before making any experiments with new settings. Turning off the transmitter will automatically store all the current data in the model memory.
CREATE MODEL MEMORY
Select the „MODEL SELECT“ menu and choose the memory medium with the „CAP TOUCH SENSOR” Either „TX“ for the internal transmitter memory or „CARD“ for model memories stored on the SD-card.
• The right hand field displays the list of models stored on the media. Here all the occupied memory spaces with model names will be listed. Select the required model with the „CAP TOUCH SENSOR“ and confirm with the ‘RTN’key.
• Afterwards highlight „SELECT“ and confirm with „RTN“.
• A security question needs confirming by pressing RTN again. Thereafter, the new model memory may be used.
Linkage Menu
• Thereafter, the new model memory may be used.
CREATE NEW MODEL MEMORY
• Highlight „NEW“ and activate. For safety reasons, the RF transmission will be stopped. The model must be shut off.
• Confirm the following safety question by pressing the r
‘RTN’-key for 1 second.
• In the automatic Displays
- Model type select and confirm change (see Chapter 10.3)
- Modulation select
• Modulation change confirm.
• Thereafter, the new model memory is active.
The new model will be given the name “New” and stored with the next available number and appear in the model list. Finally, rename the model with the desired name.
MODEL MEMORY DELETE
For safety reasons, an active model cannot be deleted.
• To delete a model from the list, highlight and select with the
„CAP TOUCH SENSOR“ from the desired memory medium and confirm with “RTN” .
• Thereafter, select „DELETE“and confirm with “RTN”
• S1 Taste halts the deletion process.
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MODEL MEMORY RENAME
• If requiring to rename a model, select from the list in the memory medium (TX/CARD) and confirm with “RTN”.
• Highlight ‘RENAME’ and confirm with “RTN”. A new display appears with all available alphanumeric characters.
S1= binder
Data entry is made using the alphabetic characters and numbers and may be up to 10 characters long (including spaces).
MODEL MEMORY COPY
You may copy a model memory within the same memory medium, or copy to another medium.
1) Firstly, the memory destination and the model to be copy must be defined.
- TX or
- CARD.
Select the relevant item and using the „CAP TOUCH SEN-
SOR“, choose the required memory medium.
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2) Thereafter, the memory place and the target file must be selected and confirmed with the ‘RTN’-Key.
- TX or
- CARD.
3) Finally, the ‘COPY’-command must be highlighted with the cursor and confirmed by pressing ‘RTN’-key for 1 second.
Rotating the “Cap Touch Sensors” interrupts the process.
Additionally, using “ADD-LIST” can overwrite an existing model memory.
When copying and overwriting, an automatic indexing number -1, -2 etc. will be allocated to the model name. If the model name for an additional Index is too long, the two last characters will be deleted.
Linkage Menu
1 0.3 MODEL TYPE
In this menu, the wing and tail types will be selected. With heli models, the swashplate mixing appropriate to the model type selection will be displayed.
This reduces the display to an absolute minimum and helps as an overview.
Note:
The model- and wing type selection must be made before the model adjustment menu, because a change of the model and wing type will delete all previous settings!
Highlight with the „CAP TOUCH SENSOR“ the ‘MODEL TYPE’ selection in Linkage Menu and confirm with “RTN”. The following Display will appear, dependent on model type, there will be minor differences.
The display „Ch8 invalid“ appears when the Tx is in 7 channel
FASST mode.
Highlight with the Cursor, TYPE and press “RTN”.
Destination
Source
Within the three categories, mark the desired model type (Airplane, Glider or Heli) and confirm with “RTN”.
Confirm the following safety question with „RTN“. Following the selection, the associated wing, tail or swashplate types will automatically be available to use.
25
The following model type selections are available.
• Model Type: Airplane - Helicopter - Glider
• Wing Type: (Normal: 1 Aileron, 2 Aileron, 2 Aileron-
1 Flap, 2 Aileron - 2 Flap.
Gliders also have: 2 Aileron- 2 Flap- 2 Spoiler, 4 Aileron- 2 Flaps.
Flying wing: 2 Aileron, 2 Aileron- 1 Flap, 2 Aileron-2 Flap
2 Aileron-2 Flap- 2 Spoiler, 4 Aileron- 2 Flap
• Tail or Rudder Type: (Normal, V-Tail and Ailvator (2. Elevator) for Airplane and Glider models. Switching to flying wing, the Tail type becomes Rudder Type! Rudde Type
NORMAL or WINGLET selctablel
• Swash type: (H1, H3 140°C, HR3 120°C, HE3 90°C, H4 und H4X 45 o )
WING AND TAIL SELECTION
If A Fixed-Wing model has been selected (Airplane or Glider), the next step will configure the appropriate wing and tail type.
Wing type selection.
Number of control surfaces.
FX-20
Display selection and confirmation message.
Select Rudder type for flying wing.
SWASHPLATE SELECTION
If Helicopter is selected, the next step is to define the type of swash mixing to be used for the model.
Linkage Menu
There are a total of four swash types that may be used:
•H-1: 1 Servo control
•H-4: 2 Elevator and 2 Aileron Servos
• HR3(120): 3 Servos spaced at 120° (1 Elevator-, Aileron and Elevator servo).
• H-3(140): CCPM-control with 3 Servos with extended linkage points for both aileron servos.
• HE3(90): 3 Servos spaces at 90°
• H-4X(45): 2 Aileron and 2 Elevator Servos with a +45° virtual rotation
RESET: If resetting the data when changing the helicopter swash type, all model data must be deleted, select “ON” in the “RESET“ box.
Activation takes place in the same way as when selecting the different wing types.
S ee chapter 2.5 on page 8 of these instructions for a tabular illustration of the servo assignment for all fixed wing models. The helicopter servo assignment is in chapter 12 on page 48.
Note:
The wing types, 2 Aileron+ 2 Camber Flap + 2 Airbrakes, as well as 4 Aileron +2 Camber Flap are only accessible in
FASST Multi Channel (chapter 10.4) mode.
Tail type selection.
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10.4 FASST FREQUENCY MODE SELECTION-7 CHANNEL
/ MULTI
The transmitter can be operated in 2 different modulation modes: FASST MULTI (8+2 channels) and FASST 7 CH (1-7 channels). The modulation mode in use will be shown in the lower left area of the main start display.
1. To change modulation mode either select the MULTI/ 7CH in lower left area of the Start display or from “FREQUENCY” in Linkage menu.
2. Move the cursor to the required modulation mode and select your choice. The modulation mode will be automatically stored in the active model memory.
FX-20
10.5 CHANGING FASST AREA FREQUENCY BAND
Select “FREQUENCY” in Linkage Menu and access set up screen.
You will be asked which frequency band is to be selected: General or France.
Linkage Menu
Recommendation:
For countries such as Austria, France, Russia, Italy and Belgium, select the frequency range 2 (2400...2454 MHz) “France”
Romania and Bulgaria require an additional general permission and you should contact your local authorities for more information. In Norway, this equipment may not be operated within a
20 km-radius of the Ny Aelesund research station.
Information about selecting frequency range in the 2,4
GHz Band.
Operating areas: EU countries, Switzerland, Norway, Iceland,
Russia. There are 2 frequency ranges that may be used in 2,4
GHz Band.
1. 2400...2483,5 MHz, Switch position “General“.
This frequency range is not allowed in every EU-country
(un-harmonized), e.g. France, that is why the “CE “ mark is followed with a “!”. Furthermore, the manufacturer registers this equipment with the relevant national authorities.
To be able to be used on this frequency band, and due to the different frequency regulations, different national rules apply for the use of the 2,4 GHz band or the radiated power permitted.
Important:
After changing frequency band from “GENERAL” to “FRANCE”, the receiver must be “re-bound”. Following the required selection, confirm the frequency change. Selecting “NO” the radiated power remains turned off and can always be switched on later.
IMPORTANT: Make a thorough range test before the first take-off!!
For the different FASST 2,4 GHz receivers, the following modulation modes are selected, regardless of number of channels actually used or required:
FASST MULTI: 8+2 Channel Mode, Receiver models R608FS,
R6008HS, R6014FS and R6014HS.
FASST 7CH: 7 Channel Mode, Receiver models R606FS,
R607FS, R617FS, R6004 FF and R6106 F/C
Selection of the FASST 7CH modulation mode will display 8 or more channels in different menus (Servo centring, Servo reverse etc.). But adjustments can only be made for the channels 1-7.
2. 2400...2454 MHz, Switch Position “France“.
This frequency range is harmonized throughout the EU, with conformity declaration „CE“. Therefore, no notification is required to be made with the national authorities and there are no national limitations in force.
27
10.6 FUNCTION
When you choose the model and wing types, you will find that optimized combinations of servo channels and control inputs/ functions have been factory preset for the model type selection.
We recommend that you keep these, wherever possible, so that a common allocation of controls to their respective servo functions is maintained.
The “FUNCTION” menu will display an overview of which receiver outputs, their respective servos and which transmitter control input operates them. Functions with 2 or more servos are already configured with the appropriate transmitter control input mixing. The configuration varies only slightly within a model type and, the number of allocated channels will be dependent upon the number of controls and flaps.
This differs when changing model type. If the model type is changed from a conventional to one with two elevator servos
(Ailvator), this changes the channel allocation of the functions.
This also applies, naturally, for gliders, with and without motors, and also for tail-less models with and without winglets.
TRANSMITTER CONTROL ASSIGNMENT
Select “FUNCTION” in the Linkage menu with the “CAP
TOUCH SENSOR“ and confirm with “RTN”. There are further adjustments of this type and the page number on the right hand side of the display shows these. In this menu, you can change the control input and trim assignment for all functions and define a function order. The following displays appear:
FX-20
SELECTION/ASSIGNMENT OF TRIM CONTROLS
The trim buttons are freely selectable. The method is identical to control input assignment. Highlight and confirm the ‘Trim’ field of the required function, the trim set up screen is displayed.
In this menu the symbols may be selected and allocated on the left hand side of the display.
TRIM SETTINGS
Linkage Menu
This menu allows further adjustments to be made:
Multiple control functions can be assigned to a chosen control input. Also, the channel settings may be freely modified.
• Select the required control input. . Move the cursor to the ‘CTRL” field in the “FUNCTION” menu with the “CAP
TOUCH SENSOR” and select with “RTN”.
• Now assign the required control for this function. A new control selection menu, “H/W SELECT” will appear which shows all the individual transmitter controls as symbols.
• In this display, move the flashing cursor to the control input you wish to assign with the “CAP TOUCH SENSOR“ and select with ‘RTN’-key.
Trim Rate
The adjustment range of trim throe can be made from -150 to
+150% of the control throw. The factory preset value is +30%.
After highlighting and activating this option, scrolling the ‘CAP
TOUCH SENSOR’ can be used to set the required %-age value. Pressing ‘RTN’-key for one second will reset the value to factory preset (30%).
Trim Mode
Move the cursor to “MODE” and confirm with RTN. By scrolling the “CAP TOUCH SENSOR“, the following modes can be accessed.
Normal = Normal mode, with the trim operating equally around the neutral point. The selected trim range will operate in the centre but extend the end point throw also.
ATL = Asymmetrical trim limit, changes the trim value only at one end of the control throe, and is used mostly for the throttle function, when it is desirable to control the idle trim without affecting the full throttle position.
ATL Normal/Reverse = Umpolung der ATL Trimmwirkung oben/unten bzw. vorn/hinten.
28
Throttle Trim Lock (only Gliders and Helicopters)
So that the throttle trim does not get accidentally moved the throttle trim levermay be locked so that it is inactive in all flight conditions except „NORMAL“.
To be able to lock the throttle trim in Glider and Helicopter model types, select IDLE UP 1-3 or AUTOROTATION. Then in the FUNCTION menu, select THR trim (T1...4) and touch RTN key for at least 1 second. An „X“ will appear in the throttle trim field to indicate that the trim is locked and no longer active.
Note:
Switching off the throttle trimmer applies for each flight condition!
Different trim settings per flight condition
COMB / SEPAR:
The function (Combined / Separate) is only displayed in the helicopter and glider menus, because only these model types operate with flight condition switching. See chapter 10.13 page
32.
It is a great advantage with helicopter models to be able to separately change and store the trim settings when moving from the static flight “hovering” to dynamic flight “aerobatics”.
VIRTUAL CHANNELS
These four channels, V-1 to V-4 can be configured as virtual functions that do not have their own servo output channels and share a “dual function” with another.
A virtual channel is a separate second control curve that works with another control input. For example, Crow Braking function which couples both aileron and camber flap servos/channels, or the elevator function of a tail-less model that mixes aileron and elevator channels together.
See the servo allocation table on pages 8 and 48 for the virtual functions.
FX-20
FUNCTION CHANGE
To be able to assign the functions to the correct channel, the function can be moved or assigned to another servo output channel.
To achieve this, select and highlight the function required. Then the new function can be selected from the menu.
RECEIVER OUTPUT CHANGE
To be able to change the receiver servo output for example, from channel 7 to channel 5, one can change the receiver output, quickly and with no mechanical changes in the model.
Linkage Menu
10.7 SERVO CENTRE ADJUST/ SUB-TRIM
When installing servos in a model, it is always best to ensure that the servo arm is in the neutral position when the transmitter control and trim are also in the neutral position. If it is not possible to achieve this or you find that the neutrals are incorrect on a model where the servos are already installed, the sub-trim function can be used to set all servos on all channels to the required exact neutral positions.
This option should only be used to make small neutral adjustments; otherwise the servo throw will be limited in one direction and asymmetrical.
The following procedure is recommended:
Firstly, adjust mechanically the servo arm and pushrod to achieve the desired neutral position. The trim memory and settings should be set to 0 %. Now use this menu to be able to set the neutral precisely.
Note:
Set the servo direction before adjusting the sub-trim.
Select “SUB-TRIM” in the linkage menu using the “CAP
TOUCH SENSOR“ and confirm with “RTN”.
The servo positions are shown as a numerical value. Select channel to be adjusted by scrolling the cursor to the required channel. Scrolling the “CAP TOUCH SENSOR” to the required value adjusts the sub trim value. The adjustment range lies between –240 and +240 steps that approximate to +/- 20° of servo travel. The initial value is set to 0 steps.
29
The previous made setting can be reset to factory setting (0 steps), when “RTN” is presses for at least 1 second.
FX-20 Linkage Menu
Highlight ‘FAIL SAFE’-Option with the „CAP TOUCH SENSOR“ in linkage menu and confirm choice with “RTN”.
10.8 SERVO REVERSE
This function electronically reverses all servo directions. This means that the servos can be installed in the model without having to think about their rotation. Before you program the model further, you should first set the servo direction to suit the control sense of the model.
Select “REVERSE” in the linkage menu and access the set up screen by pressing “RTN”.
The servo directions are displayed as either ‘NORM’ or ‘REV’.
To reverse a servo, highlight the channel with the “CAP
TOUCH SENSOR“ and press “RTN”. Scroll the “CAP TOUCH
SENSOR” to select the servo direction. Following this, rotate the sensor to change from ‘NORMAL’ to ‘REV’ or vice versa.
Pressing ‘RTN’-key will complete the servo reversing operation.
The illustration shows the normal and reversed servo directions.
Note:
Reversing the servo direction will also change the direction of the associated trim lever.
1 0.9 FAIL-SAFE SETTINGS
In 7 CH operation, the Failsafe Function is limited to channel 3 (throttle) and cannot be changed. In „MULTI“ operation, channels 1-8 are all freely assignable for failsafe position. The following settings can be made:
1. HOLD‘-Mode: The receiver stores the last good impulse and in the case of interference sends this signal to the servos. The servos will maintain this last “good” position until the radio interference ceases. This mode is a factory preset.
2. (F/S) Fail-Safe: The servos will move to a pre-determined position, programmed from the transmitter and stored by the receiver.
3. Furthermore, there is the “Battery-Fail-Safe”setting. In
7CH operation, the B/FS is pre-set and cannot be turned off. So that the model remains under control in the case of B/FS, a reset switch must be defined.
As soon as the receiver battery voltage drops below 3,8 V, the selected B/
FS servos with a set F/S position, will move to their defined position to warn the pilot that the receiver battery is almost empty and must be landed immediately .
Fail-safe setting recommendations: Power models:
Motor to idle position and controls to fly a curve, for gliders:
Camber-, landing flaps or airbrakes/spoilers deployed. With
Helicopters, one should think about exactly whether and with which F/S position is best for the throttle channel. A setting of 80
% throttle is a good point so that the helicopter can still hover.
However, with an electric helicopter, there is a real danger if the transmitter is accidentally turned off, that the helicopter will take off without pilot control. A setting of approximately 20% minimizes this “free-flight” with interference, however the helicopter will still crash!
2,4 GHz operation has a very high interference rejection, and the Hold-Mode in Heli Mode is the better alternative!
This menu has a sub-menu for channels 5 to 8, the page number shows these. Highlight the “F/S” item of the channel to be set with the “CAP TOUCH SENSOR“. Scrolling the
“CAP TOUCH SENSOR to the left will change the setting from
‘HOLD’ to ‘F/S’ or vice versa. The display will flash and press
‘RTN’-key to confirm the selection.
For safety, always set F/S position!
To set the Fail-Safe positions. The “CAP TOUCH SENSOR“ is used to highlight the F/S-POS item of the channel to be set on the right hand side of the display. Move the corresponding transmitter control to the required failsafe position and confirm with the ‘RTN’-key. The respective servo throw will be displayed as a %-age. The same method is used to set all channels to with a ‘F/S’-setting.
To revert from ‘F/S’ back to ‘HOLD’, the F/S field of the respective channel must be selected and data entry mode selected by RTN. Scrolling the “CAP TOUCH SENSOR“ to the right will change the setting and be confirmed by pressing the ‘RTN’key.
In the same way, each channel may set in “MULTI“ mode for Battery-Fail-Safe-Programming, ‘BAT-F/S’. The display changes from ‘OFF’ to ‘B.F/S’. The pre-set of the warning position of the servo is made in the same way as described above. The pre-set position is displayed as a %-age value. It is recommended that this warn function operates on the throttle or airbrake/flap channel.
After storing the setting, the data is sent by Autotransfer to the receiver. This transmission can take between 30-60 seconds
(visible by the flashing LED monitor on the receiver). During this transmission, the model must not be flown!
This Battery-Fail-Safe Function can be released with a switch.
To do this, a switch must be assigned for this job. The required control will be displayed as “--“ in the third page of the Failsafe
30
set up display. In the sample screen shown, switch SA is being used as the release switch.
Important Note:
When checking that the Failsafe-settings are set correctly on the throttle channel, remove the propeller or rotor blades from the model to minimize the risk of personal injury if the motor starts without warning. The settings can also be checked by connecting a separate servo into the throttle channel and testing the setting this way.
Once this has been done, you can test the Failsafe by switching off the transmitter.
Note:
The factory pre-set position for all channels is programmed to HOLD. Check if this suits your model application.
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10.10 SERVO THROW ADJUSTMENT (END POINT)
This function allows the servo throws for all 8 channels to be set each side of the neutral position.
This is necessary to stop the servo hitting any mechanical limits imposed by the linkages and controls.
For special cases, the servo throw can be increased. This function
30-140% left
30-140% works on all servo channels and any mixers active on the channel.
This menu allows you set each channel with a servo throw limit at each end of the travel.
right
Please note that the changes also proportionally affect the trim throw and any Dual-Rate settings that may have been set.
Using the “CAP TOUCH SENSOR“, highlight the ‘Limit’-Option in Endpoint-Menu and select choice with “RTN”. The Set-up display will be as follows:
Limit servo throw I + r
Linkage Menu
Limit-Point Adjustment
The setting of the limit points follows the same procedure.
Highlight the required field and adjust using the “CAP TOUCH
SENSOR“. The limit point may be set for each servo travel direction. The factory pre-set is 135%; the adjustment range is between 0 and 155%. Pressing the ‘RTN’-key for a minimum of
1 second will revert back to the initial pre-set value.
Why use Limit-Endpoint Adjustment?
Due to a too high control input throw or the mixing of 2 functions lead to the default servo travel being exceeded. To avoid mechanical damage to the servo hitting it’s end stop, one should define the maximum servo throw as well as the linkage throw using the Limit Point function. Therefore it stops the servo exceeding its mechanical travel Limit Point, immaterial of control inputs and mixers settings are working on that servo.
10.11 THROTTLE CUT FUNCTION
This allows you to cut the motor with a switch without having to touch the idle trim. It is a convenient method to safely shut the motor down.
Select the THR CUT menu in the
Linkage Menu using the “CAP
TOUCH SENSOR“ and access by pressing “RTN”. The following display will appear: servo throw t h r o t t l e off throw
Servo throw settings
Highlight the right or left throw indicator of the channel you would like to adjust with the “CAP TOUCH SENSOR“. The item will now have a dark background. Set the servo throw by scrolling the “CAP TOUCH SENSOR“ until the %-age value to suit the control limit is reached. If the throw is also to be set for the other direction of the servo travel, then repeat the process for the second column of the channel.
The factory pre-set throw is 100%, the throw may be adjusted between 30 ad 140%. Pressing the ‘RTN’-key for at least 1 second will reset it to the factory default.
Activate the function by highlighting the ACT/INH line. Using the “CAP TOUCH SENSOR“ change the setting from ‘INH’ to ‘ACT’ or ‘ON’, depending on the position of the throttle cut switch and press ‘RTN’-Key. Now select a switch, with which to cut the motor. Also highlight ‘--’ and open the switch setting menu by pressing ‘RTN’-key. Choose a suitable switch and
ON position.
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FX-20
10.12 IDLE DOWN
The “IDLE DOWN” function allows you to reduce the motor r.p.m. quickly to a reliable idle position by operating a switch when the throttle stick is in the low throttle position, e.g. in the landing approach condition.
The function only operates when the throttle stick is in the lower range to avoid accidental “dead stick” landings happening.
Highlight “IDLE DOWN” with the “CAP TOUCH SENSOR“ in the Linkage Menu and access the set-up screen below with
“RTN”:
10.13 DIGITAL TRIM SETTINGS (T1-T4 SET)
Select (T1-T4 SET) in the Linkage Menu using the “CAP
TOUCH SENSOR“ and access the set-up screen below by pressing “RTN”:
Linkage Menu
Highlight the throttle cut position (POS) and set the servo position by scrolling the “CAP TOUCH SENSOR“ to the desired
%-age value of servo travel. The adjustment range lies between 0 and 50%, the default value is 17%. Pressing the ‘RTN’key for at least 1 second will return to the default setting.
Operating the chosen switch will cut the motor when the throttle stick is in the idle position.
Please take note of the following advice during the set-up:
• The throttle cut must be switched to OFF when starting the motor.
• Set the percentage value so that the throttle butterfly is fully closed, but the linkage has not hit its mechanical stop.
• If the throttle cut is ON when the transmitter is turned on, the software will sound an alarm. Turn the throttle cut switch to
OFF to stop the alarm sounding.
• This alarm warns the pilot that the throttle is fully closed and that the motor cannot be started
Activate the function by highlighting ACT/INH line. Using the
“CAP TOUCH SENSOR“, change the setting from ‘INH’ to
‘ACT’ or “ON”, dependent on the switch position and press
‘RTN’-key.
• Using the “CAP TOUCH SENSOR“, highlight the ‘OFFSET’-
Position and set the required throttle position as a %-age of the servo travel. The adjustment range is between 0 and
100%, the default setting is 0%. Pressing the ‘RTN’-key for at least 1 second returns to factory pre-set default position.
Operating the chosen switch will move the throttle to the desired motor rpm.
• After that, select a switch. Highlight the ‘--’ item and access the switch set-up screen by pressing the ‘RTN’- key. Now select the switch to operate Idle Down.
Trim Step Display
Selection global/separate
Only in Glider and Heli Modes
The settings can be either displayed as step amounts or percentage values for the digital trims (T1...T4). When the step amounts should be displayed as percent then change the units
(UNIT) using the “CAP TOUCH SENSOR“ to percent values.
The Trim mode is set always to global (COMB) mode in “fixed wing power model”, because no flight conditions are available here.
The resolution of the trims can be adjusted from 1…200 using the Step setting, so that the smallest inaccuracies may be trimmed out. The pre-set Step-Value is 4, thereby giving a resolution of -50 and +50 steps. With a Step-Value of 8, there is a resolution of -25 to +25 steps.
The higher the value, then the resolution becomes “coarser”.
TRIM MEMORY OPERATION (T1-T4 SET)
If during the flight, the trims need to be adjusted, you are able to store these settings using this function. Before turning off the transmitter or changing the model memory, it is recommended that you store the “new” trim settings. The model will be ideally set up for the next flight and the trim buttons will be reset to a neutral position of 0%.
Select (T1-T4 SET) in the Linkage Menu. Select T1-T4 Memory
„ACT“.
32
Then select the appropriate control trim display scale and press
“RTN“ key for at least 1 second. The setting is confirmed when a beep is heard and the trim display re-sets to 0%.
FX-20
10.14 WARNING
One can programm an alarm to warn of unwanted mixers as well as incorrect flight conditions being active during the transmitter switch on sequence.
This function serves as safety device for the operator and the model, by preventing inadvertent settings on the transmitter, such as incorrect stick position being used during motor starting.
Linkage Menu
10.15 DATA-RESET
When setting up a new model memory, this allows you to reset all the stored data to factory pre-set values.
• Reset trim settings (T1-T4 active Flight Condition)
This sub-menu resets all trim settings saved in the active flight condition back to factory pre-set
• All Model Data Reset
This sub-menu resets all Linkage- and Model- menus except for frequency, Model Select and Model Type.
Highlight ‘DATA RESET’ using the “CAP TOUCH SENSOR“ in the Linkage Menu and confirm selection with “RTN”. The set up screen is as below:
To reset the indicator to „0“, the trim value difference is buffered in the transmitter. Thereby allowing a quick visual check to be made on the Display, to see whether all trims are set to
„0“, as well as checking whether further trim adjustments have been carried out.
The stored trim value difference is shown in the Display.
Trim difference
The memory for this is limited. If the end point has been reached and it can no longer be stored, then the linkage must be mechanically adjusted to suit.
As delivered from the factory, all Mix Alarms are set to „ON“.
To be able to switch of the alarm, switch „OFF“ the relevant control or mixer, or turn the transmitter on wit RF radiation switched off.
Highlight with the “CAP TOUCH SENSOR“ the item that you would like to reset and confirm with ‘RTN’-key. Pressing this key again for 1 second will make the chosen reset process.
Touching another key will interrupt the reset process.
Separate (SEPARAT) / Combined (COMB.) Trim
The function “COMB.“ / „SEPARAT“ is used to determine whether the trim is the same for all flight conditions = “COMB“,
(combined). If set to “SEPARAT“ (separate), the trim can be individually set for each flight condition. The display will change when operating the flight-condition switch. The combination of both combined and separate functioning trims is also possible.
Note:
This function only works with glider and helicopter model types.
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11. MODEL-MENU (AIRPLANE AND GLIDER MODELS)
These functions of the model menus, which will be described individually in more detail, act as the additional adjustments that can be carried out on a model type as well as model memories.
This data is stored under the model name in the relevant memory.
• AILVATOR:
• WINGLET:
• MOTOR:
• RUD->ELE:
• SNAP ROLL:
• AIRBRAKE:
• CAMBER FLAP:
• MIXTURE:
FX-20
Ailvator settings
Winglet-function
Motor settings
Rudder -> Elevator Mixer
Snap-Roll-Function
Spoiler/ airbrake mixer
Landing flap Mixer
In flight mixture adjust
2 x
Because not all functions needed for Model-Menu can be displayed in just one screen, there is a sub-menu in which the remaining functions can be selected.
Depending on the model type selected, there are the following options:
Model menu
11.1 SERVO, SEE PAGE 22
11.2 FLIGHT CONDITION (GLIDER ONLY)
The T8FG Software has five different flight conditions or phase settings available per model memory. For the different phases of flight, the optimum settings for mixers and trim can be stored and when needed, easily accessed by means of a switch. This option allows you to program a glider with the perfect control settings for the launch condition of flight.
Both ailerons and flaps are depressed so that the model has maximum lift at launch. To maintain a stable trim, the elevator may be offset to mix a small amount of down elevator to counteract any climbing tendency caused by the extra wing lift.
During the launch condition, this offset can be selected with a switch or a defined control setting.
If several flight conditions are used in a single model memory, the operational priority can be freely set as desired. The flight condition can be copied. A condition delay time can be set for each channel, so that when switching flight conditions, a “soft” change is achieved without an abrupt change in model trim.
Using the “CAP TOUCH SENSOR“, select ‘CONDITION’ option in Model-Menu and confirm selection with “RTN”.
The Programming consists of the following steps:
• • SINGLE / LOGICAL Switch Functions
1x
• SERVO:
Servo monitor
• FLIGHT CONDITION: Select flight condition
• DUAL-RATE:
• PROG. MIX:
• THR CURVE:
• THR DELAY:
• AIL. DIFF.:
• FLAP SET:
• AIL->CMBFLP:
• AIL- BRAKE:
• AIL->RUDDER:
• CAMBER MIX:
• ELE- BRAKE:
• CMBFLP-ELE:
• RUD->AIL:
• BUTTERFLY:
• TRIM MIX:
• GYRO:
• V-TAIL:
Switched second control throw.
Programmable Mixer
Set throttle curve
Throttle curve delay
Aileron-Differential
Flap throw adjust
Aileron -> Flap Mixer
Aileron -> Airbrake Mixer
Aileron -> Rudder Mixer
Spoiler - Camber Flap Mixer
Elevator- Spoiler Mixer
Camber flap. -> Elevator Mixer
Rudder -> Aileron Mixer
Butterfly (Crow)
Trim settings
Gyro settings
V-Tail settings
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A single switch (Single) or a logically coupled (Logic) pair of switches may be used to switch between flight conditions.
The following functions may be selected:
• AND: Series coupling of switches to activate the condition
E.g. “SA AND SB“ must be operated to activate the function.
• OR: Parallel coupling of switches used to activate the function E.g. “SA OR SB“ activates the function.
• EX-OR: Either -Or selective coupling or exclusion of defined switches. E.g. EITHER “SA OR SB“ activates the function.
FX-20
• PRIORITY CHANGE
Highlight the flight condition that you wish to change priority using the “CAP TOUCH SENSOR“. Using the “CAP TOUCH
SENSOR”, the highlighted flight condition can be moved by using the Up-Arrow and Down-Arrow to change the priority.
The last condition becomes the highest priority.
Active Flight Condition
• COPY FLIGHT CONDITION
Move the cursor to the original flight condition (SOURCE) that you wish to copy. Select the Destination (DESTIN) item to which you wish to copy into. Move the cursor to the
(COPY) item and press ‘RTN’-key for at least 1 second.
The Flight Condition is now copied.
• CONDITION DELAY SETTING
Select the condition that you want to set. Then select
‘DELAY’ and confirm with ‘RTN’-key. The Display will be as below:
11.3 DUAL-RATE
Up to five different Dual-Rate throw adjustments (second switchable control travel) with different throw and curve characteristics and / or differing Exponential curves. A maximum of four may be controlled with one switch. Highlight “DUAL RATE“ and select with ‘RTN’-key. You may make the adjustments in the following sub-menus.
Next you must choose the function that you wish to use. To do this, position the cursor, on the selected line on the first item.
Function
Model menu
The throws are set separately for the right and left of servo neutral position. To do this, highlight the throw to be set with the ‘CAP TOUCH SENSOR.
The adjustment range is between -0% and +140%. The initial value is +100%. Pressing the ‘RTN’-key for at least 1 second will reset it to the initial value. Using the same method, the settings for both exponential curves may be selected. The adjustment range is between -100% and +100%. The initial value is 0%.
NT=Neutral point
Additiona to the end points and curve type (Normal/ Expo), the Neutral point of the control input curve can be set between
(+/- 120%).
Just like an AFR Function, the control input curve can be changed from a straight line to a curve around the zero point, where the control no longer is effective.
With Camber Flap, Spoiler and Butterfly (Crow Brake), the adjustment range is extended similarly to +/- 120, whereby the control curve can be converted to a straight line over the whole control range.
In the Helicopter and Glider menus, there is an additional choice of using a normal switch as in Airplane menu or operated by using flight condition switching to activate this function.
Use the “CAP TOUCH SENSOR“ and highlight the ‘DELAY’column of the channel that you wish to adjust the delay time.
The delay time is made by rotary scrolling the “CAP TOUCH
SENSOR“. The adjustment range is between 0 and 27 steps.
The initial value is set to ‘0’, that means that no delay is programmed.
35
FX-20
TOUCH SENSOR“ you can select the function that will act as the Master-Channel. When you would like to select a switch or another control to activate the function, then you must use the setting “H/W SELECT”. The selection is confirmed by pressing “RTN”.
Model menu
11.4 PROGRAMMABLE MIXERS (PROG.MIX)
In addition to the fixed mixers, the FX-20 has 5 freely programmable additional mixers for each model memory. These mixers use a pre-programmed, control rate setting ranging from linear to a 5-point curve.
These mixers may be used to set up, for example, an aerobatic model to compensate for any control interactions between various control functions. Thus, flying the model will be simpler and more enjoyable. The mixer couples two selected channels as a Master- and Slave- channel.
The control rate settings have 2 curve types (Linear and Curve) available. A separately adjustable switch time delay allows all settings to be made, so that when activating the mixer on there is no abrupt change in the model trim or flight path. The Trim
Mode Function defines whether the trim of the Master channel works on the Slave channel also. The Offset-Option allows the matching of the mixed channel to the main function, so that no movement of the control neutral happens when activating the mixer. One can individually select the switch or control to activate the different mixers.
Using the “CAP TOUCH SENSOR“, highlight the ‘PROG.
-MIX’ Option in the Model-Menu and confirm the selection with
“RTN”. The Display will be as below:
The single mixers will each be listed in a line. The Display lists five mixers. The programming process will be illustrated using the 1 mixer. Mixers 2 to 5 will be programmed in the same manner.
One gets to the Programming masks, in that one highlights the required mixer and presses the ‘RTN’-key. The Display changes and the first mixer programming menu will be displayed. There are two levels, and the page counter in the middle show which page is active. The programming consists of the following steps.
• Activate Mixer
Move the Cursor to the item “INA’ in the second display.
Rotate the “CAP TOUCH SENSOR“ to the left will activate the mixer; ‘ACT’ will flash in the display. “RTN” will now close this procedure.
• Assign Mixer switch
Move the cursor in the second display to the ‘--’ item and press the ‘RTN’-key. The switch selection menu will now appear. Select the switch and its operating direction. If the mixer should be permanently switched on, keep the initial
‘--’ item unchanged.
• Mix percentage and mix curve adjustment
The curve type must be initially selected. There are two modes to choose from- “LINEAR“ or “CURVE“. With the
Linear settings, two points may be adjusted. In the curve setting, a 5 individual point curve may be set. Highlight the item required from “LINEAR“ and “CURVE“ and select the desired choice.
• Master channel setting
Use the following method to set up a normal mixer. Highlight the item to the right of “MASTER“. By using the “CAP
When you would like to couple or link this mixer with another, you must select the required function in the ‘LINK’ column.
The “LINK‘- (linking-) function will be used, to be able to couple a programmable mixer with other mix functions. When, for example, a model is fitted with two aileron servos (each with its own receiver output), and coupled rudder and aileron should be made, normally only one aileron servo will be controlled when moving the rudder.
• When the “LINK‘-Function is switched on, then the other aileron servo will be “mixed in”, so that both aileron channels are controlled.
• The Link mode can be set to ‘OFF’ (Initial setting) to ‘+’ or to ‘-’. The respective sign sets the direction again, or says whether a mix takes place (+). Rotating the “CAP TOUCH
SENSOR” makes the change.
• Finally, you can set the Trim function. It must be defined in which direction the trims for both channels should operate.
In the window ‘TRIM’ there is the possibility to choose from
‘OFF” or “ON‘ settings. Selecting “ON”, the Master trim also works on the Slave channel. Otherwise both channels are separated. After highlighting the item, changing the mode is made with the “CAP TOUCH SENSOR“ and confirming with the ‘RTN’-key.
• OFFSET X and Y setting
The OFFSET Position defines the point at which the
(MASTER) control position is active.
• Slave channel setting
Programming is made with the same procedure as the
Master channel. Highlight the item to the right of the
“SLAVE“, select with “CAP TOUCH SENSOR“ and confirm with “RTN”. When required, finally activate the linking mode as described above
36
11.5 THROTTLE CURVE / DELAY
(ONLY FOR POWER AIRCRAFT MODELS)
Operating the throttle stick will automatically control the throttle servo. Using “THR CURVE“ is to slow the response of the throttle stick.
Use “THR CURVE“ to be able to slow the response of the throttle stick. A delayof between 0-27 steps can be programmed. Thus allowing slower reacting carburettors to be controlled with higher speed servos.
The throttle curve function is used to adjust the throttle curve with up to five programmable points for the optimum engine speed to suit any stick position, for example to compensate for the non-linear carburetor response found on most model engines. Highlight the “THR CURVE” function in the Model Menu using the “CAP TOUCH SENSOR“ and confirm with “RTN”.
Program the curve so that the motor speed follows the throttle stick, i.e. half maximum revs is at half stick position.
FX-20
11.6 AILERON DIFFERENTIAL (AIL DIFF.)
An aircraft requires differential on the aileron throw to compensate for the adverse yaw tendency when applying aileron control. When an aircraft banks then the down going aileron gives more drag as it is working in a higher pressure region of airflow than the up going aileron. This leads to a yawing motion of the aircraft opposing the bank caused by the ailerons.
Model menu
Highlight “AIL.DIFF” option in model menu with the “CAP
TOUCH SENSOR“ and confirm the selection with “RTN”. The
Display has a sub menu as below: without differential differential 50% differential 100% (Split)
Aileron differential movement compensates for this adverse yaw effect by reducing the throw of the down going aileron in relation to the up going aileron to try and equalize the drag caused by each aileron. Thereby removing any adverse yaw tendencies when rolling or banking the aircraft.
This function requires the 2 separate ailerons to be mixed so that the throw of aileron 3 aileron 1 aileron 2 aileron 4 the “Up going aileron” and
“Down going aileron” may be individually adjusted to suit. A separate servo must be used for each aileron. With the T8 FG, the control inputs allocation is programmable. In the above diagram, the example shows two ailerons per wing half.
To program, follow the steps below:
Set the differential throws
Highlight in the Display up to a maximum of four individual aileron servos per left and right hand wing half that you wish to program. The adjustment is made by scrolling the cursor with the “CAP TOUCH SENSOR“ and data input confirmed by the ‘RTN’-key. Scroll the touch sensor when the aileron stick is moved to maximum left or right stops to adjust the throws required.
Butterfly-Differential setting (Glider only)
Changing the percentage settings of “BUTTERFLY DIFF“ , the effect of the aileron differential settings can be set as required.
The differential should be a little less, since on the landing approach, one needs maximum throw and therfore a reduced differential value is needed.
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11.7 FLAP SETTINGS
Main
Aileron
(AIL.1)
Camber
Flap (FLP)
Camber
Flap
(FLP2)
Airbrakes/spoilers (FLP3+FLP4)
ELE
RUD
V-Tail
ELE
Main
Aileron
(AIL.2)
ELE2
Ailvator
This menu adjusts the settings of the wing trailing edge (flaps and ailerons) c o n t r o l s so that the speed of the aircraft will be reduced, but at the same time also create more lift by moving the wing trailing edge controls downwards.
For 6 flaps e.g. 2Aileron+2Camber+2Brake or
4Aileron+2Camber, an Offset compensation can individually carried out. (Note: only active in MULT mode, not 7 CH!)
Highlight the “FLAP SET” option in model menu with the “CAP
TOUCH SENSOR“ and confirm with
“RTN”.
The Display has several levels described below:
Camber Flap Throw
FX-20
Airbrake Throw
Mixing Airbrake to Camber Flap throw
11.8 AILERON -> CAMBER FLAP MIXER
Aileron
(AIL +
AIL3)
Camber
Flap
(FLP)
Camber
Flap
(FLP2)
Aileron
(AIL2 +
AIL4)
Model menu leron stick is moved, both the camber flaps and ailerons move together to significantly improve the roll response of the aircraft. At the same time the induced drag of the wing is reduced when banking the aircraft.
Highlight the “AIL-> CMBFLP” in the model menu using the
“CAP TOUCH SENSOR“ and confirm selection with “RTN”.
The Display has a sub menu as below:
This Menu operates the camber flaps as ailerons.
When the ai-
The first menus have practically identical settings. The difference lies in the first Display that the programmed pre-sets for the Camber Flaps, the second, the Airbrakes and the third, for the Airbrake and Camber Flaps must be set.
The final menu level requires the Airbrake-> Camber Flap mixer to be activated (ACT/INH). The ‘SW’ item defines a switch and its operating sense. The default is ‘--’, i.e., the mixer is always turned on. It is possible to switch the mixer “Airbrake-Camber
Flap” on with either a switch or a control switch activated by a stick position.
Finally, it is advised that the programming possibilities and the display differ and are dependent upon the chosen model- as well as the wing type selected.
After activating this mixer in the ‘ACT/INH’ item, the mixing rate both controls can be set as a % value for both left and right aileron throw by means of the “CAP TOUCH SENSOR” and using the known procedure. The +/- sign indicates the direction of operation.
Should you require the mixer to work with the AIL->BRKFLP/
Aileron-Brake Flap mixer, the adjustments are made in the
‘LINK’ mode. The option must be active and the Link switched
ON.
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11.9 AIL->BRKFLP/ AILERON -> BRAKE FLAP MIXER
This mix operates the brake flaps (FLP3 /4) in aileron mode.
When the aileron is operated, the aileron and brake flaps operate as ailerons together to improve the axial roll response of the model.
A d j u s t a b l e mix rates allow precise flap throws to be set. The mix can be
Aileron
(AIL +
AIL3)
Brake
Flap
(FLP3)
Brake
Flap
(FLP4)
Aileron
(AIL2 +
AIL4) turned ON/OFF during flight by selecting a mix switch and the mix Linked with other mixers.
Using the “CAP TOUCH SENSOR“, select the AIL->BRAKEFLP mix from Model Menu and confirm with RTN. The Display will be:
FX-20
11.10 AILERON -> RUDDER MIXER
Winglet
(RUD1)
Chip aileron
(AIL3)
Main Aileron
(AIL)
Main Aileron
(AIL2)
Winglet
(RUD2)
Chip aileron
(AIL4)
This Menu is used to set a mixer to operate the rudders and or winglets when the ailerons are moved.
ELE RUD
V-Tail Ailvator
Activating this mixer will couple the Ailerons to the Rudder functions. This is particularly useful in large models to avoid adverse yaw effects occurring when banking to turn. The mix-rate can be precisely set. The function can also be activated with a separate switch. The Display has a single menu, which is:
Model menu
11.11 CAMBER MIX
Main Aileron
(AIL1)
ELE
Camber
Flap
(FLP2)
Camber
Flap
(FLP4)
M a i n
Aileron
(AIL2)
T h i s m e n u will set up a mixer, which will change the camber of the complete wing to maximize the lift being created. Dependent upon the size and setting of the movements, the ailerons, camber, brake, t h e r m a l o r speed brake trim
RUD
V-Tail
ELE
Ailvator
ELE2 changes can be compensated by elevator mixing. The throw direction for all trailing edge controls/flaps can be set to be positive or negative. To be able to set the wing geometry to its optimum position, the servo throws and the direction can be pre set to an exact mix value. A condition delay time as well as a cut switch may also be programmed. The Display has four sub menus, which are as follows:
Activate this mixer, scroll to ‘ACT/INH’, both flap throws may be adjusted individually and set for left and right with the mix rate for each defined as a % age value. + & - signs indicate direction.
“SW” defines the switch selected and its direction of operation.
If it is required to link this mixer with AIL -> CMBFLP or RUD ->
AIL mixers, then the ‘LINK’ must be switched ON.
Similarly, the mixer required to be linked to must have the function enabled (ACT) and the „LINK“ enabled also. Note that the
Linked Mixer may not have a second control or switch assigned to it, otherwise the “LINK“ Function will not work.
Also this mixer must also be activated by selecting ‘ACT/INH’.
Dependent on the switch position, ON or OFF will be displayed.
“SW” defines the switch selected and its direction of operation.
The pre-set is ‘--’, i.e. the mixer is always turned ON. The required mix rate of rudder movement to aileron will be set here by adjusting the mix value for each direction by scrolling the touch sensor.
Aileron Throw Adjustment example
Also this mix function must be activated in the first Display by selecting ACT/INH and highlighting the required selection with the “CAP TOUCH SENSOR“ and activating with RTN. Depen-
39
dent on the selection, the field will be displayed as “ON” or
“OFF”.
Adjustment flaps
Adjustment elevator
In the ‘SW’ cell, a switch can be assigned and its operating direction defined. The pre-set condition is always on when the display is set to ‘--’. To set a delay time for a smooth transition between flight conditions, scroll to the “COND.DELAY” field and set a delay time between 0 and 27.
The “CUT-SW” can be set by highlighting the item and selecting a switch and its on direction in the H/W SELECT menu.
The pre-set of ‘--’, means that the mixer is permanently switched on. The mix rates and the servo throws are set by selecting from AIL or FLAP or ELE in the RATE field in the CAMBER
MIX Display Menu. Highlight the control to be adjusted and touch “RTN” to confirm and adjust the mix rates.
It should be noted that the Menu Displays differ according to the model type selected and number of Aileron and Flap servos assigned in Model Type of the Linkage menu.
FX-20
11.12 ELEVATOR -> CAMBER MIXER
The ELE-> CAMBER menu mixes camber flaps with elevator.
The flaps move in opposition to the elevator to increase/decrease the lift of the wing. This increases the effectiveness of the elevator control and is used when tight turns and “square” aerobatic manoevres are required to be flown. A switch may be assigned to turn the mix on and off and the flap mix rate can be precisely set.
Model menu
RUD
Camber Flap left (FLP)
ELE2
V-Tail
Camber Flap right (FLP2)
ELE
Ailvator
ELE2
Highlight the “ELE->CAMBER” option in the Model Menu using the “CAP TOUCH SENSOR“ and confirm with “RTN”. The Display consists of three sub menus, which are as follows:
The mixer must be first activated in sub-menu 3/3 by selecting from ACT/INH cell. Highlight this with the “CAP TOUCH SEN-
SOR“ and activate using “RTN”. This field will now indicate
“ON” or “OFF”, dependent upon the activation.
In the ‘SW’ cell, a switch can be assigned and its operating direction defined in H/W SELECT menu. The pre-set condition is always on when the display is set to ‘--’. That meas the mixer is on.
The setting of the throws for up to a maximum of 2 ailerons and
4 flaps is made in separate sub menus. Each servo’s direction and throw as %-age can be set. The settings are made in the typical manner. Highlight the item and confirm, then adjust the
%-age value using the scroll on the “CAP TOUCH SENSOR“.
Finally, please note that the programming features and display will differ according to model and wing type selected in the
Linkage Menu.
To set a dead point on the elevator control before the mix becomes active, go to page 3/3 and select “RANGE”. To set this value, move the elevator stick to the point (this stick position will be displayed in (0%) cell) where the mix should become active and press “RTN“ key for approximately 1 second.
40
11.13 CAMBER FLAP -> ELEVATOR MIXER
The CMBFLP-> ELE menu mixes elevator with the brake flaps/ spoliers. The elevators move in opposition to the spoilers to increase the effectiveness of the flaps/spoilers.
Camber Flap left (FLP)
RUD
ELE2
V-Tail
Camber Flap right (FLP2)
ELE ELE2
Ailvator
The mix function can also be activated with a separate switch.
Highlight the “CMBFLP->ELE” option in the Model Menu using the “CAP TOUCH SENSOR“ and confirm with “RTN”. The Display consists of one sub menu as follows:
FX-20
In the ‘SW’ cell, a switch can be assigned and its operating direction defined in H/W SELECT menu. The pre-set condition is always on when the display is set to ‘--’.
The setting of the throws for the elevator servos. Each servo’s direction and throw as %-age can be set. The settings are made in the typical manner. Highlight the item and confirm, then adjust the %-age value using the scroll on the “CAP
TOUCH SENSOR“.
Finally, please note that the programming features and display will differ according to model and wing type selected in the
Linkage Menu.
Model menu
11.14 RUDDER -> AILERON MIXER
This menu function is used when you want to mix elevator operation with rudder opertion.
Chip aileron
(AIL3)
Main
Aileron
(AIL)
Main
Aileron
(AIL2)
Chip aileron
(AIL4)
ELE RUD
It is used to correct undesirable tendencies when rudder is
V-Tail Ailvator as, knife-edge and 3D flight. Also it is used in large models and gliders to mix out unwanted roll interaction when applying rudder.
applied in rolling maneuvers such
Highlight the “RUD->AIL” option in the Model Menu using the
“CAP TOUCH SENSOR“ and confirm with “RTN”. The Display consists of one sub menu, which is as follows:
Selecting from ACT/INH cell must first activate the mixer. Highlight this with the “CAP TOUCH SENSOR“ and activate using
“RTN”. This field will now indicate “ON” or “OFF”, dependent upon the activation.
The mixer must be first activated by selecting from ACT/INH cell. Highlight this with the “CAP TOUCH SENSOR“ and activate using “RTN”. This field will now indicate “ON” or “OFF”, dependent upon the activation. In the ‘SW’ cell, a switch can be assigned and its operating direction defined in the usual manner in H/W SELECT menu. The pre-set condition is always on when the display is set to ‘--’.
Each aileron servo’s direction and throw as %-age can be set for a given rudder throw. If it is required to mix the Flap servos also, then the ‘LINK’ must be switched ON. Similarly, the flap mixer that you wish to link to must also be turned ON, but no further switch or control switch should be assigned otherwise the “LINK“ Function will no longer work.
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11.15 CROW/ BUTTERFLY MIXER
(Only for Glider model type)
Main
Aileron
(AIL1)
ELE
Camber
Flap
(FLP)
Camber
Flap
(FLP2)
Flaps (FLP3 & 4)
Main
Aileron
(AIL2)
This menu f u n c t i o n is used to quickly slow the aircraft and reduce altitude by simultaneously raising the left and right ailerons and lowering the flaps
(camber flap, brake flap).
It is useful when landing
RUD
V-Tail
ELE ELE2
Ailvator fast models in small areas.
With a 6-flap wing the programming can be made so that all flaps work as airbrakes. A switch may be freely assigned to activate the function. It is also known as Crow Braking.
The speed of operation (SPEED) of the aileron, flap and elevator servos and the Offset where the mix becomes effective may be programmed individually. Also this menu allows the differential reduction of the ailerons to be programmed as needed.
Highlight the ‘BUTTERFLY’-Option in the Model-Menu with the
“CAP TOUCH SENSOR“ and confirm with “RTN”.
The Display has three sub-menus as follows:
Throw adjustment of the Aileron-Flap-Airbrakes for the Butterfly function.
FX-20
Im oberen Bereich der Ebene (2/3) wird der Zumischanteil für den Höhenruderausgleich eingestellt. 100% Rate entspricht ca. 25° Servoweg. Als Richtwert, schlagen wir 50% = 12,5°
Servoweg vor.
Elevator Compensation Dead-spot
Y
3-Point
X
2-Point
Elevator trhrow Offset
In the lower part of the Display, a 2-point curve is activated at the factory for the elevator compensation mix.
This can be extended to be a 3 point curve, to configure a non linear elevator mix.
Some models need a larger elevator compensation to start with, followed by a reducing elevator compensation mixing, other models will require totally the opposite control compensation.
To activate the 3-Point Curve zu, select item X (--) and press
„RTN“ for approximately 1 second. The middle value will be stored and shown in the Display.
Thereafter,the middle point of the 3 Point Curve can be adjusted using the „X“ and „Y“ values.
It will appear at first that the elevator rate and the maximum value for the 2 Point Curve cancel each other out. In the 3 Point
Mode, there is, however, the advantage that one can quickly change the mix ratio, without having to change the found curve form.
Note:
If the Offset point in an existing 3 Point Curve is changed, the previously programmed curve will be automatically deleted and a standard 2 Pont Curve displayed!
Always take great care to check the settings!
Model menu
The third menu (3/3) will activate the Butterfly mixer by selecting from the ACT/INH field.
In the ‘SW’ cell, a switch can be assigned and its operating direction defined in H/W SELECT menu. The pre-set condition of the Butterfly mixer will always be turned on when the display is set to ‘--’.
The ‘OFFSET’ field is used to define the stick position where the mixer becomes active, i.e. the stick position may be stored as a %-age value, from which the wing flaps will start to move to the Butterfly-Position. The mechanical stick movement has no effect (a dead area with no servo movement) up to the programmed Offset Point
This Offset point is also effective in the elevator compensation.
Set the operation point for this mixer by moving the Airbrake
(Throttle) stick to the required position and press return. The stick position will be stored and displayed in the OFFSET field of the Display.
Similarly, the operation speed of the aileron, flap and elevator servos when operating the mixer can be individually programmed.
Finally, it should be noted that the programming possibilities and the Display differ according to the chosen model- as well as the wing type (number of servos) selected in the Linkage
Menu.
42
FX-20
11.16 TRIM MIX
Main
Aileron
(AIL)
ELE
Camber
Flap
(FLP1)
RUD
Flap
Camber
(FLP3 & 4)
Flap
(FLP2)
ELE
Main
Aileron
(AIL2)
ELE2
The FX-20
S o f t w a r e has a TRIM
MIX function, which adjusts the trim offset rates of the ailerons, elevators, and flaps
(camber flaps, brake flaps) according to the flight condition. For example, this function can V-Tail Ailvator be set up for glider launching, with speed flaps and ailerons drooped, and a slight amount of up elevator, and can be used for high speed flying, with both ailerons and speed flaps reflexed upwards slightly, and will have also some elevator compensation. To prevent sudden trim changes when switching flight conditions, a delay can be set to provide a smooth transition between the two conditions. It is also possible to program a cut switch, which will turn off the delay. Furthermore, the Software allows you to assign an auto switch, which will link the trim mix to a Tx stick, switch, or knob. Additionally, the operation speeds of all the aileron, elevator, and flap servos (dependent on wing type selected in Model Type in the Linkage Menu) can be adjusted individually to avoid sudden trim changes when operating the mix.
Select the TRIM MIX Option in Model-Menu using the “CAP
TOUCH SENSOR“ and confirm with “RTN”. The Display has two sub-menus as follows:
The first Menu programs the pre-set throws of the aileron, flaps and the elevator compensation. For each servo, an Offset-Value is set, by scrolling to the respective servo field in the Display and setting the throws with the “CAP TOUCH SENSOR“ and confirm with “RTN”.
In the second menu page, selecting ‘ACT/INH’ activates the
Mixer. The Display will show ON or OFF depending on activation status. The “TRIM MIX“ can be manually activated via a switch or stick switch position. Should you wish to use the stick as a switch, highlight the field next to “AUTO-SW“ and confirm with “RTN”. The H/W SELECT menu will allow any of the four sticks, (J1…. J4) to be assigned as a switch and the operating point defined.
The servo speed can be programmed in the second menu page for all flap settings of aileron, camber flaps and elevator servos.
The “CUT-SW” may also be defined so that the condition time delay can be switched from active to inactive. Therefore, it is now possible to have two forms of flight condition switching on demand, one abrupt and the other with a smooth transition.
Assignment of the switch is made with the usual method.
Finally, please note that the programming features and display will vary according to model and wing type selected in the Linkage Menu.
Model menu
11.17 GYRO
This function is used when a GYA Series gyro is used to stabilise the aircraft‘s attitude around a single axis. When using up to 3 gyros, there are three modes available (#1-#3) where the sensitivity may be programmed as a %age and called up by a switch. The operation mode/ gyro type (Normal mode/AVCS mode) can be changed via a switch.
Highlight and the “GYRO” option in the Model Menu using the
“CAP TOUCH SENSOR and confirm with “RTN”. The Display is as follows:
The Menu has three identical pages for setting up to 3 different gyros with a switched access to settings.
Also this function must firstly be activated in the ‘ACT/INH’ field.
Highlight the cell and set to ACT with “CAP TOUCH SENSOR“ and finally activate with “RTN”. Depending on switch position, the Display will show ON or OFF.
The ‘TYPE’ cell is used to define whether the Gyro works in
‘GY’ (Heading Hold)- or in normal Mode. Further advice will be found in the instructions of your gyro being used.
Using the normal method, a switch and its sense can be assigned in H/W SELECT menu accessed via the SWITCH selection field. The preset is ‘--’, i.e., the function is always turned on.
The sensitivities for up to three possible axes of a gyro can be set in the % age column.
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11.18 V-TAIL MIXER
(Only when V-Tail is selected in model type)
This Menu enables all the mix functions to be programmed to operate a V Tail airplane. The signals for rudder and elevator are RUD/
ELE
ELE/
RUD mixed so that two servos control these functions. The throws for elevator (controls move in the same direction) and rudder (controls move in opposite direction) can be individually programmed. The sketch shows the servo assignment with a V-Tail.
After selecting V-TAIL as Tail type in the Linkage Menu, highlight the “V-TAIL” Option in Model Menu and confirm with
“RTN”. The Display will be as follows:
FX-20
11.19 AILEVATOR (ELEVATOR WITH AILERON) FUNC-
TION
(Only when Airplane + Ailvator Model Type is
selected in Linkage Menu)
ELE
(AIL 5)
ELE 2
(AIL 6)
This menu enables all the mix functions to be adjusted to operate twin elevator servos as ailerons to improve the roll response on a, typically, large wingspan, powered model. Both elevator surfaces can work in the same sense as the ailerons as well as normal elevators. The two elevator servos are each connected to separate receiver outputs. On a V-Tail, this is known as a Ruddervator as they serve the same purpose. The sketch shows the servo assignment for a conventional tailplane configuration.
Highlight the ‘AILVATOR’ Option in Model-Menu with the “CAP
TOUCH SENSOR“ and confirm with “RTN”. The Display will be as follows:
Model menu
11.20 WINGLET-RUDDER SETTINGS
(Only with Flying Wing Model type selection)
RUD 1
This Menu sets all the mix functions to control the Wingtip Rudders of a Flying
Wing model.
They function in
RUD 2 the same way as a conventional rudder mounted on the tail, but are more effective because they do not operate within the turbulent air-blast from the propeller.
The Induced drag of the wing is reduced and therefore the flight performance is improved. This function is mainly used for flying wing models fitted with winglets. The sketch shows the servo assignment.
Highlight the ‘WINGLET’-Option in the Model-Menu using the
“CAP TOUCH SENSOR“ and confirm with “RTN”. The Display is as follows:
For both control surfaces of a V-Tail, the throws and directions are be entered as %age values in ELEVATOR and RUDDER functions. The adjustment procedure is made in the typical manner. After highlighting and confirming the %age field to be adjusted, scrolling the “CAP TOUCH SENSOR“ to increase/ decrease the value and confirm with “RTN” to finish.
The pre-set value for all servos is 50%, touching the ‘RTN’-key for at least 1 second will reset the values.
After programming the data, check thoroughly that the V-Tail mixer works correctly with full and free movement of the controls in the correct sense without hitting any mechanical stops.
The direction and throws (in %age) of the tailplane control surfaces can be adjusted. The method has been extensively described above. Following the highlighting and confirming the appropriate fields, scroll the “CAP TOUCH SENSOR“ to adjust the %age settings for the throws and confirm the settings with
“RTN”.
The pre-set values are set to 100% each; touching the ‘RTN’key for at least 1 second will reset the value.
After programming the data, check thoroughly that the Ailvator mixer works correctly with full and free movement of the aileron and elevator controls in the correct sense and without hitting any mechanical stops.
The servo throw (%age) and direction can be adjusted for both winglet rudders (RUDDER 1 and RUDDER 2”). The method is described above. Following the highlighting and confirming the appropriate fields, scroll the “CAP TOUCH SENSOR“ to adjust the %age settings for the throws and confirm the settings with
“RTN”.
The pre-set values are set to 100% each; touching the ‘RTN’key for at least 1 second will reset the value.
Please note that this function only is available when the correct
Model Type (Flying Wing & Winglet) is selected in the Linkage
Menu.
44
11.21 ELECTRIC MOTOR SETTINGS (MOTOR)
This Menu lets you set the parameters for switching an electric motor in a powered glider or similar aircraft. Of particular interest is the option to use a switch as the motor control for two speed ranges, slow and high-speed flight. Therefore, it is recommended to use a 3-position switch to operate this function (switch SG is the factory default).
A ONE-TIME Operation mode is featured, that will by operating the programmed control switch once, use a second throttle curve when set to ON. This is used to set a second throttle curve, with alternative delay, brake points and also to set a
“Soft Start” time delay curve for take off, thereafter switching the motor On and Off will be made with the Normal throttle curve settings. This feature is particularly useful for take off with high-powered electric models and F5B pylon racers with very high revving motors.
Highlight the “MOTOR” Option in Model Menu with the “CAP
TOUCH SENSOR” and confirm with “RTN”. The Display has two sub-menus, which are as follows:
FX-20
In the second Display 2/2, the “SPEED” settings are entered.
This sub-menu must also be activated in the usual manner in the ACT/INH field. Then it must be determined whether the
“SPEED” mode should be activated. The setting is made exactly like activating the mixer.
In the „SPEED 1 ->2“ data entry in Display 2/2 one can set the boundary position between Off and On within the bar chart graphic.
Finally, the time delays for both ‘SPEED1’ and ‘SPEED2’ can be entered. To do this, highlight the relevant field and enter the %-age value using the “CAP TOUCH SENSOR“. It is then possible to set the delay time for each switch direction (On and
Off), to do this highlight the required field and scroll the sensor to set the required value. The range is between 0 and 27 steps
(maximum of 9 seconds), pre set is 0 seconds.
Ensure that the MOTOR OFF setting is made in combination with the Failsafe settings.
Example:
Model menu
11.22 RUDDER -> ELEVATOR MIXER
(Only airplane model type)
This function is used to mix elevator operation with the rudder.
It is used to compensate for unwanted control interaction particularly in knife-edge or extreme 3D flight. There is often the tendency for the model to pitch down or up when applying rudder and this mix is used to compensate for this.
The mix rate can be precisely adjusted via two values. The function can have a switch assigned to turn it on or off in flight.
When the “LINK“ is active (“ON“), other mixers of the Slave channel, in this case “ELEVATOR“ will also be active.
Highlight the “RUD-ELE” Option in Model Menu with the “CAP
TOUCH SENSOR” and confirm with “RTN”. The Display has one sub-menus which is as follows:
Also this function must firstly be activated in the ‘ACT/INH’ field. Highlight the cell and set to ACT with “CAP TOUCH SEN-
SOR“ and finally activate with “RTN”. In Display 1/2, an operating switch can be assigned (main operating switch default is switch SG) to stop the motor starting without warning. The field
MOTOR OFF sets the position where the motor is switched off. Highlight the field, when the assigned switch is in the OFF position, and confirm by pressing the “RTN” key. The setting will be stored and shown as a value in this field. Here, it is only the OFF position defined.
Note:
For safety reasons, the switch on settings must always be made without a propeller fitted.
Also this function must firstly be activated in the ‘ACT/INH’ field.
Highlight the cell and set to ACT with “CAP TOUCH SENSOR“ and finally activate with “RTN”. Finally an operating switch must be assigned. The pre-set is ‘--’.
The mix value can be entered and programmed in the Display. Via the mix value, the mix rate is entered and defines the amount of elevator throw applied when the rudder is operated.
If it is required to mix the Flap servos also, then the ‘LINK’ must be switched ON. Similarly, the flap mixer that you wish to link to must also be turned ON (ACT) and the „LINK“ turned on. No other switch or control switch should be assigned otherwise the
“LINK“ Function will no longer work.
45
11.23 SNAP-ROLL-FUNCTION
This Function defines the switch and throw adjustments of ailerons, elevator and rudder when performing a “Snap Roll”.
When required, a switch operates this manoevre. The servo movements cannot be over-ridden. For this manoevres, the three main control surfaces (aileron, elevator and rudder) can be assigned with up to four settings (right/up; right/down; left/ up; left/down). MASTER or SINGLE operation modes can be selected, where the Snap Roll function is turned ON/OFF by the master switch. It is possible to set the direction switch to the direction in which you want to snap roll. When [Single] mode is selected, The snap roll in each direction can be executed by means of independent switches and positions.
A safety switch can be set to prevent the inadvertent activation of the snap roll. For example, the landing gear is lowered; even if the switch were turned on accidentally the snap roll would not be executed. The snap roll switch is activated only when the safety switch is OFF.
Highlight and the “GYRO” option in the Model Menu using the
“CAP TOUCH SENSOR and confirm with “RTN”.
The servo throws can be set as %ages in the first menu page for all three controls (ailerons, elevator and rudder).
Using the usual method to adjust settings, highlight the relevant field with the “CAP TOUCH SENSOR and confirm with “RTN”.
FX-20
In the second menu the operation MODE and switch assignment can be made for ‘MASTER’- or
‘SINGLE’- mode.
As already described, as well as the master switch, ‘MASTER’-
Mode requires a safety switch to be assigned using the usual method in H/W SELECT. In the third menu, switches can be programmed for each of the four snap roll directions by the usual method of highlighting, selecting and data entry using the
“CAP TOUCH SENSOR“. Dependent upon the switch positions the ACT condition will be displayed as ON or OFF.
Model menu
11.24 AIRBRAKE MIXER
(Active only with Airplane Model Type)
AIL1 FLP1 FLP2 AIL2
This function is used to increase the aircraft‘s drag and is useful for landing or diving, etc.. The preset elevators and flaps
(camber flap, brake flap) off-
ELE
RUD
ELE ELE2
V-TAIL AILVATOR set amount can be activated by a switch.
The offset amount of the aileron, elevator, and flap servos can be adjusted as needed. Also the operation SPEED of the aileron, elevator, and flap servos can be adjusted in both directions. If the Auto Mode is activated, this will link the Airbrake to a stick, switch, or knob. A separate stick switch or knob can also be programmed as the ON/OFF switch.
When operating the Airbrake, most models have a pitch trim change and an Elevator compensation can be programmed to counteract this.
Finally, double check all settings on the ground before flying with Snap Roll activated.
The Function will only be active when the Model Type Airplane and FLAP Wing Type i.e. 2 AIL+1 or 2FLP is selected in Lin-
46
kage Menu.
Highlight the “AIRBRAKE” Option in Model Menu with the “CAP
TOUCH SENSOR” and confirm with “RTN”. The Display has two sub-menus, which are as follows:
If no control stick or knob (Auto SW) is assigned to operate the Airbrake, then it is possible to assign any switch to operate the Airbrake surfaces and elevator compensation. The throws of the aileron, flap and elevator surfaces can be programmed.
Also the operation SPEED in both directions can also be set for all the airbrake control surfaces.
Using the second page of the menu, activate the mixer in the
ACT/INH field. Using the usual method, program a switch field to operate the Airbrake. The preset condition is ‘--’ and the mixer is permanently on.
If you wish to use a joystick control to operate the AIRBRAKE automatically, mark the AUTO-SW field and select in H/W SE-
LECT, the desired stick control and its On/Off switching position using the usual method.
FX-20
11.25 FUEL MIX (ONLY MOTOR MODEL)
This function works only in the Airplane and Helicopter Model
Types. It allows a separate servo to be used for mixture control of the carburetor mixture. The advantage is that the mixture servo throw can programmed as a 5 point curve to operate in conjunction with the throttle curve, thereby ensuring the optimum mixture setting throughout the throttle range. An additional acceleration function ensures that when opening the throttle that the engine receives more fuel than normal.
Highlight FUEL MIX in the Model Menu. The Display has three pages of sub menus:
To program this function, please do as follows:
Activate the Function
To be able to use the automatic Fuel Mix function, it must be activated. On page 2/3, set the ACT/INH field to ACT to activate.
Model menu
Setting 5 point Curve
The Mix type (MIX/UNMIX) must be selected. Highlight and select the mixer type in the MIX field. If MIX is selected, then the Master Data from the programmed throttle curve will be applied. If UNMIX is selected, then the Master Data is dependent upon the actual position of the throttle stick. n. The 5-point curve programming is made on page 1 and highlights each point and adjusts the %age values to set each of the five adjustment points.
Needle High Trim setting
Page 1/3 has a TRIM function to allow fine-tuning of the Highspeed mixture. A switch or knob should be assigned; this is made in the usual way. The pre-set is ‘--’, i.e. the function is always turned on. After highlighting the field, the switch or rotary knob selection may be made in H/W SELECT menu.
Acceleration RATE setting
When opening the throttle the engine requires more fuel and it is helpful to momentarily richen the mixture when the throttle is being opened quickly. The RATE may be adjusted for LOW and HIGH throttle openings. Highlight the field to be adjusted and the %age set to suit. The adjustment range is between
0-100 %. During the throttle opening, the mixture servo moves to the mixed position. At 0%, the mixture servo opens at the same rate as the throttle servo, at 100 %; the mixture servo opens 10 - 15° in front of the throttle and then returns to the programmed setting. The pre-set for this is 0%. Touching
‘RTN’-key for approx.1 sec. will return to pre-set %age.
The acceleration function may also be damped (DUMPING), so that the motor doesn’t suffer from a sudden rich mixture.
Highlight the DUMPING field, and adjust between 0 % to 100
%. The pre-set value is 0 %. Touching RESET key will return to initial value.
Using the ACT POS fields, the operation point setting can be adjusted in page 3/3. Two ranges are available, for the lower range, from 0 to 49% (Min.) and for the upper range, from 50 to 100 % (Max.) can be programmed. The %-values is shown in the respective fields.
47
Adjusting specific throttle conditions
The Tx Software has two pre-programmed throttle condition already described in the Linkage Menu.
- THROTTLE CUT, Chapter. 10.11, S. 30
- IDLE DOWN, Chapter 10.12, S. 31
This menu programs the needle valve position for these two throttle conditions. When activating such a function, the throttle servo moves to a preset position, programmed by the throttle condition selected. Simultaneously, the needle valve will be adjusted so that the mixture is optimized for the selected throttle condition. The programming is made by setting the %age values using the usual programming method, i.e. highlight the field and adjust the setting with the “CAP TOUCH SENSOR”.
FX-20
12. LINKAGE MENU (HELICOPTER MODELS)
The functions of the Linkage Menu, which have already been fully described previously, differ only with the addition of swashplate and swashplate ring programming. Only the additional Helicopter specific features are described here. Therefore, please refer to pages 24-34 for a full description of the rest of the functions of the Linkage Menu. The functions of the
Linkage Menu, which are already fully described already, are to make the basic settings of a Model or Model Memory. The individual data are stored under the Model Name in separate memories.
Note:
When turning the Tx on, should the Display show: “WAR-
NING! IDLE UP1, 2 or 3” and the Tx alarm beeps, in such a way the corresponding Switches must be switched to
“Normal“ or the “NO“ Field in the TRANSMIT? field selected and confirmed by touching “RTN“.
Highlight the Linkage Menu in HOME Display with the “CAP
TOUCH SENSOR“ and confirm selection with ‘RTN’. A summary of the Linkage Menu functions will now be displayed.
Linkage menu helicopter
After activating the Helicopter Model Type, the following options may be selected:
SERVO:
MODEL SEL:
MODEL TYPE:
FREQUENCY:
FUNCTION:
SUB-TRIM:
REVERSE:
FAIL SAFE:
END POINT:
THR CUT:
SWASH RING:
SWASH:
T1-T4 SET:
WARNING:
DATA RESET:
Servo throw bar chart see page 24
Model memory select see page 25
Model type selection see page 26
Frequency- and Modulation select page 28
Control & Trim assignment and order
Servo center fine adjustment see page 30
Servo direction reversing see page 31
Fail Safe adjustment see page 31
Servo maximum throw adjustment see page 32
Motor cut function see page 32
Throw Limit Display of swashplate
Swashplate programming menu
Adjust Trim steps and mode see page 32
Warning of any active mixers see page 33
Reset all Data to factory pre-sets see page 33
RECEIVER OUTPUT ALLOCATION FOR HELICOPTER MO-
DELS
2 x
Since not all the functions of the Linkage Menu can be displayed in a single Display, there is a second page that has the remaining functions. This may be viewed by touching the S1 key to leaf between pages 1/2 and 2/2. Scrolling the “CAP
TOUCH SENSOR” to the last item on each page will automatically leaf to the next page. The selection is made by scrolling the “CAP TOUCH SENSOR“ in the required direction to select the required function. The second page of the Linkage Menu is:
1x
Model type Helicopter
Receive Output
1
2
AILeron Cyclic pitch
ELEvator Cyclic Pitch
3
4
5
6
7
8
THRottle
RUD/ Tail rotor
GYRO
Collective PITch
Rotor speed GOVernor
ELEevator 2 Cyclic Pitch/ NDL
Note:
The receiver output channels 1-7 are the same for all Helicopter model types with the exception of H-4 and H-4X, which uses channel 8 for “ELE 2“. All other swashplate types use channel 8 for “NDL“.
48
1 2.1 FUNCTION
The selection of the Model Type acts as the basis for the Mix functions and Control assignment and automatically defines the Control Configuration for a selected Model Type. All servo outputs channels, functions (aileron elevator etc) and control
(sticks, switches and trim levers) are freely assignable. However, we recommend, wherever possible, to keep the standard control allocation layout to be able to maintain a consistent control standard.
In the “FUNCTION” menu, there is a summary display of which servo is connected to its respective receiver output. On functions with two or more servos, the corresponding control that is configured in the software is also displayed. Within a Model
Type, the control configuration varies very little.
CHANGING FUNCTIONS
Highlight the “FUNCTION” Menu in the Linkage Menu using the
“CAP TOUCH SENSOR“ and confirm with “RTN”. There are 4 pages in the function menu, the page number is found in the right hand part pf the Display. This menu allows you to assign the Transmitter control, trim and the receiver output channel for all control functions.
The following Displays look like:
FX-20
SELECT TRIM LEVERS
The trim levers are also freely assignable. The method is identical to the Control assignment. Highlight and confirm the function in the Trim column, the Trim Control Menu will appear in the H/W SELECT Menu. The selected Trim may be assigned to any of the Controls in the table on the left hand side of the menu.
TRIM SETTINGS
Linkage menu helicopter
This Menu allows the following further settings to be made:
Every control function can be assigned to a preferred transmitter control. Likewise, the corresponding channel can also be freely modified.
• To do this, highlight “FUNCTION” with the “CAP TOUCH
SENSOR” and confirm with “RTN”
• Then scroll to the respective function, e.g. ‘TAIL’ for tailrotor.
• Finally, assign the required control for this function. Highlight the selected channel in ‘CTRL’ column and activate.
The Display changes to H/W SELECT Menu which shows a symbolic table of all the transmitter controls.
• The required control can now be selected for the chosen
Function in this menu by scrolling the flashing cursor with the “CAP TOUCH SENSOR“ and confirm the assignment by touching the ‘RTN’-key.
• Trim Rate
The setting of the Trim Rate range is from -150 to +150% of the control throw. The Initial value is +30%. Following the highlighting and activation of this option, scroll the ‘CAP
TOUCH SENSOR’ to adjust the %-value. Confirm by touching the ‘RTN’-key for 1 second will reset it to the initial value (30%).
• Trim Mode
Following the highlighting and activation of this option, scroll the ‘CAP TOUCH SENSOR’ to assign the following
Trim Modes
NORM = Normal Mode, the Trim range is symmetrical about the middle. The selected Trim range will be moved about the middle, which also moves the servo End Point accordingly.
ATL = Asymmetrical Trim Limit, changes the Trim range at only one end of the servo travel, used mainly for idle trim adjustment without affecting the full throttle position.
ATL Normal/Reverse= Trim operation operates either above
(Normal) or only below (Reverse) the neutral stick position.
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Trim inactive (only Helicopter and Glider)
The throttle trim can be turned off in all flight conditions, except „NORMAL“, as here, the throttle trim is not required to be trimmed and it stops accidental movement of the trim as well.
To be able to programme the throttle trim in Glider and Helicopter to off, „IDLE UP 1-3“ or „AUTO“ must be selected. Then confirm the „THR“ trim (T1-4) with „RTN“ key held for at least 1 second in the „FUNCTION“ menu.
An „X“ will appear by the Trim item and indicates that the throttle trim is switched off for this flight condition.
Note:
Switching off the throttle trimmer applies for each flight condition!
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CHANGE TRANSMITTER CONTROL ASSIGNMENT
To be able to assign the correct controls to the channel required, the transmitter control channel may be re-assigned to another channel output. Select the Control (CTRL) to be changed and highlight. Then select the new Transmitter Control required from the H/W SELECT Menu.
Different Trim Settings per Flight Condition
The Function (COMBination. / SEPARate) is only active in
Helicopter and Glider Linkage Menus, since only these model types use flight condition switching, See Chapter .10.13 “T1-T4
TRIM-SETTING“ on page 32.
It is a significant advantage with helicopter models to be able to adjust and store the trim settings for both “Hovering “ and
“Aerobatic” flight conditions.
VIRTUAL CHANNELS
The “FUNCTION“ option in the Linkage Menu is used to configure the Virtual Channels, V1 to V-4. A virtual channel is one, which does not have its own servo and uses other servo channels as a “Dual Function”. A virtual channel is a separate control curve that is effective with a control on a servo output.
The servo allocation table on page 48 includes the virtual channels.
RECEIVER OUTPUT CHANGE
To be able to change the receiver servo output for example, from channel 7 to channel 5, one can change the receiver output, quickly and with no mechanical changes in the model.
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Linkage menu helicopter
12.2 SWASH RING
The Swashplate Ring mixer limits the aileron and elevator cyclic pitch travel to a fixed range so that damage to the swash linkage is prevented when using simultaneous operation of both aileron and elevator cyclic pitch controls. This is particularly useful in 3D aerobatic flight where large servo travels are used. Selecting from the ACT/INH field in the Display activates the function.
The operating range “ RATE“ is from 50 - 200%. If you require to reset the range to the pre-set value of 100%, then touch
„RTN“ key for one second. The %age values for stick input are displayed on the lower left hand part of the Display.
12.3 SWASH SETTINGS
(E.g. Type HR-3)
Individual control settings for aileron, elevator and collective pitch. The SWASH Menu has several menu pages. The page numbers are shown in the top right hand side of the Display.
Touching the S1-Key will leaf through the different menu pages.
You can set the Stick travel and directions of the aileron (AIL), elevator (ELE) and collective pitch (PIT) travels; additionally mixing rates and compensations may be programmed in this menu.
Highlight the “SWASH” option in Linkage Menu with the “CAP
TOUCH SENSOR“ and confirm with “RTN”. The Display is as follows:
FX-20
This function is not available for Swashplate Type H-1, because the Collective Pitch function is not mixed.
Servo Neutral Adjustment
Now adjust the servo neutral position (NEUTRAL POS), this is programmed as a %-age value. Set the mechanical neutrals such that the servo arms are all set to 90 degrees to the linkages, so that the neutral position is around 50%. Move the
Collective Pitch stick to its neutral position and check that the servo arms and their linkage are at right angles.
Stick Travel Adjustment (AFR)
The aileron, elevator and collective pitch swashplate travels can be individually adjusted. To do this, highlight the respective control AFR field with the “CAP TOUCH SENSOR“ and adjust the %-age value as required. The adjustment range is between
-100% and +100%. The pre-set values are 50%. Touching the
“RTN“ key for one second will reset the values to the pre-set.
Using the function “SERVO REV” sets all the swashplate servos so that they operate in the same direction when moving the collective pitch stick. In page 5/5, change the + or – signs to set the servo direction for aileron and elevator so that they operate in the correct control sense. Set the largest mechanical throw, but not so large that the linkages bind the servo travel. Check the maximum Collective Pitch, Aileron and Elevator functions at the limits of control. Depending upon the swashplate type and style of rotor head, if too much throw is available, the swashplate may bind and then limit the travel with the Swash mixer.
Mixing Rate setting
The HR3 swash-plate type will be used as an example to describe mixing rate setting. The mixing used in other swash modes may be different, however, the setting procedure is the same.
Set the throttle stick to the preset neutral point. Adjust the length of the linkage rod so that the swash plate is horizontal at this position. The sub-trim function can be used to make small adjustments.
Adjust so that the pitch curve is a straight line and the helicopter achieves maximum pitch. Move the cursor to the item you want to adjust and touch the RTN button to switch to the data input mode. Touch the RTN button to end adjustment and return to the cursor mode.
Linkage menu helicopter
Adjust the AIL to PIT rate so there is no binding in the elevator or pitch movement when the aileron stick is moved to the left and right.
Adjust the ELE to AIL and ELE to PIT rates so there is no binding in the aileron or pitch movement when the elevator stick is moved up and down.
Adjust the PIT to AIL and PIT to ELE rates so that the swash plate moves to the level/ horizontal position when the throttle stick was moved to maximum low and full high.
This sub-menu compensates for the mechanical interaction caused by the different linkages.
Set the throttle to the lowest position. Move the aileron stick to the left and right and adjust the aileron compensation amount on page 5/5 so that interaction in the elevator or pitch direction is minimal.
Adjust by scrolling the CAP TOUCH SENSOR. The left and right sides can be adjusted individually.
If the interaction increases when the compensation amount was increased, make adjustments with the compensation di-
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rection [DIR.] as „-“.
Adjust the elevator compensation amount so that the aileron or pitch direction interference when the elevator stick was moved up and down is minimal.
Repeat the above steps; perform aileron and elevator compensation similarly at full throttle.
In Menu 5/5, the speed compensation (SPEED) can be adjusted. touch the RTN button to switch to the data input mode.
Set the throttle stick to the neutral point position. Quickly move the elevator stick and adjust the speed compensation amount
[SPEED] for minimum interference in the pitch direction.
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13. LINKAGE-MENU (HELICOPTER MODELS)
This section deals with the helicopter specific menus within the Linkage Menu. To activate Heli Mode, the HELICOPTER
Model Type must be selected in Linkage Menu and confirmed by touching “RTN”. A summary of all the Heli-specific Model
Menus will be displayed:
2 x
Model menu helicopter
13.1 FLIGHT CONDITION (IDLE UP 1, 2 &3/ HOLD)
The Software of the FX-20 has five different flight conditions per model memory. For the different flight tasks, one can store the optimized settings. When required, a switch can be used to activate the flight condition required.
This option allows gyro, rotor speed and control throws to be varied and accessed by a switch to suit the flight condition.
If several flight conditions are set up for one model, the priority may be freely assigned. The flight conditions may also be copied and a delay time may also be programmed for each channel, so that a soft transition is made when switching flight condition, without a major trim change occurring.
Highlight “CONDITION” in the Model Menu with the “CAP
TOUCH SENSOR“ and confirm with “RTN”.
The programming process contains the following steps:
• SINGLE / LOGIC Switch
1x
direction
Adjust by scrolling the “CAP TOUCH SENSOR” and highlighting to adjust the settings. Touch the RTN key to return to the cursor mode.
• SERVO:
• CONDITION:
• DUAL RATE:
• PROG. MIX:
• PIT CURVE:
• THR CURVE:
• THR HOLD:
• SWASH MIX:
• THR MIX:
• PITCH -> RUD:
• GYRO:
• GOVERNOR:
• FUEL MIX:
Servo throw display see page 22
Idle Up selection
Second control throw curve see page 34
Programmable Mixer see page 35
Collective pitch settings
Throttle curve settings
Throttle Hold/Autorotation settings
Swashplate mixer
Swash-> Throttle Mixer
Pitch -> Tail rotor Mixer
Gyro settings
Rotor head speed governor
Carburetor mixture adjustment settings
If more than one flight condition has been programmed, the operational priority may be customized to use Logic switches to activate the flight conditions. The following functions are available for use:
• AND: Serial connection of the switches e.g. “SA AND “SB“ activate the flight condition.
• OR: Parallel connection of the switches e.g. “SA“ OR „SB“ activate the flight condition.
• EX-OR: Either -Or connection and exception of specific swit-
ches e.g. EITHER “SA“ OR “SB“ activates the flight
condition.
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• PRIORITY CHANGE
Move the cursor to the priority up-arrow or down-arrow with the “CAP TOUCH SENSOR” of the flight condition you want to change and touch the RTN button. The priority of the corresponding condition is changed. The last condition line in the Display becomes the highest priority and works across all flight conditions! (Note: The normal condition cannot be shifted. The priority is always the lowest)
• COPY FLIGHT CONDITION
Select the source flight condition that is to be copied from.
Then highlight the target field, to which the source condition should be copied. Now highlight “COPY“ and confirm with touching ‘RTN’-key for 1 second. The Flight Condition settings are now copied into the new one.
activ condition
Model menu helicopter
13.2 SET COLLECTIVE PITCH CURVES
Moving the Throttle/Pitch stick, not only moves the Collective
Pitch servo, but also the Throttle servo will be controlled. To make independent adjustments to match both curves, the Collective Pitch function has a curve, with up to 5 programmable points available, which can be coupled to the Throttle curve.
Note:
Before changing any pitch curve settings, ensure you have the correct flight conditions and assigned all switches in the correct positions/priorities. It is also possible to adjust the throttle curve of another flight condition, without changing flight condition. Select the required flight condition in the „EDIT“ field.
Highlight “PIT CURVE” with the “CAP TOUCH SENSOR“ in the
Helicopter Model-Menu and confirm with “RTN”.
The Display has three pages/sub menus, which are as follows:
• SET CONDITION DELAY
Select the condition for which you want to set. Move the cursor to the „DELAY“ item of the channel you want to set and touch the RTN button to switch to the data input mode.
Adjust the delay amount by scrolling the touch sensor. The
Adjustment range is 0~27 (maximum delay) and the initial pre-set value is 0 (no delay time programmed). Touch the
RTN button to end adjustment and return to the cursor mode.
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This Menu adjusts the Pitch Curves for the following Flight
Conditions:
• Normal: For starting and stopping the motor
• IDLE UP 1: For hovering flight
• IDLE UP 2: For circuit flying
• IDLE UP 3: For aerobatics
• HOLD: For autorotation landings
Switching between these flight conditions is made using the assigned (CONDITION) switches. When turning on the Transmitter, the NORMAL flight condition must be selected, otherwise a WARNING alarm will sound and you will be questioned whether to transmit a signal. This may be programmed in the
MIX-ALARM option.
Example of the Pitch Curve for
‘NORMAL’ flight condition. Program the curve so that the motor r.p.m. remains as constant as possible across the entire pitch range.
Example of a Curve for ‘IDLE UP 1’.
For hovering, the settings are adjusted so that the correct rpm is held for all pitch settings.
Example of a Curve for “IDLE UP2”.
For circuit flying, the settings are adjusted so that the correct rpm is held for all pitch settings.
Example of a Curve for “IDLE UP3”.
For aerobatic flying, the basic curve is a straight line and the settings are adjusted so that the correct rpm is held for all pitch settings.
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Example of a Curve for “HOLD”. For autorotation, the lower portion of the throttle curve is adjusted so that either the motor is cut or returns to a reliable idle.
Model menu helicopter move the end points of the servo travel respectively. The
Centre Trim (CTRM) works also around the servo neutral point but does not change the servo end point. The trim throws work asymmetrically.
• Furthermore, the trim RANGE can also be programmed. If a smaller Trim Range is required, then the trim only operates near the neutral stick point. Also, further Flight Conditions can be configured from pages 2 & 3 of the Menu in case that no control has been assigned in the flight condition menu.
The lower part of the pitch curve is adjusted so that the highest possible rotor head speed is achieved. Thereby giving the most stored rotor energy to flare and land the helicopter under full control.
The illustrated curves are only shown as examples, since you must test fly your machine and adjust the individual settings to suit the specific model characteristics!
The programming for all flight conditions is as follows:
• Program Pitch Curve
The programming of the Curve, in the first Menu is made in the usual method. The Curve must be set up. Highlight the point (1-5) on the Pitch Curve that needs adjustment with the “CAP TOUCH SENSOR“ and scroll the sensor to adjust the %age value to achieve the pitch setting required.
• Copy Pitch Curve
To copy the created Pitch Curve, using the “CAP TOUCH
SENSOR“ within the source Pitch Curve Display, scroll and select “COPY“. Select the target Pitch Curve to be over written and confirm YES or NO prompt with RTN.
• Carry out Pitch Trimming
On pages 2 and 3 of the Display, the Pitch Trim can be optimized. In the second menu page, the Hovering Pitch (IDLE
UP1) will be set up. The function must be activated by turning ON.
In the line ‘--’ the Tx control is assigned to act as Pitch Trimmer (the rotary knob LD is pre-set). After highlighting the control with the “CAP TOUCH SENSOR“ and confirming with “RTN”, the H/W SELECT menu appears and an alternative can be assigned using the normal control assignment method.
• Now program the ‘MODE’ for the Pitch-Trim. The modes
‘NORM’ and ‘CTRM’ are available. With NORM, the trim area is symmetrical about the neutral point and will also
Scroll the cursor to the field beside “EDIT“ and confirm with “RTN“.
Using the “CAP TOUCH SENSOR“, select the required flight condition.
• The third page of the menu is used to adjust ‘MIN’- and
‘MAX-PITCH’, for the end limits of the pitch servo.
• The programming is totally identical to that used for the
IDLE UP 1 (hovering) trim settings. No Trim mode and Trim
Range may be entered here. Finally, the Trim RATE is entered. The adjustment is made from -30 to +30% of the control throw. The pre-set value is +30%. After highlighting and activating this option, scroll the ‘CAP TOUCH SENSOR’ to set the required value. Touching ‘RTN’-key for at least 1 second will return to the pre-set value of 30%.
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13.3 THR CURVE/ HOVERING THROTTLE TRIM
Moving the Throttle/Pitch stick, not only moves the throttle servo, but also the pitch servo will be controlled. To make independent adjustments to match both curves, the throttle function has a curve, with up to 5 programmable points available, which can be coupled to the pitch curve.
Highlight “THR CURVE” with the “CAP TOUCH SENSOR“ in the Helicopter Model-Menu and confirm with “RTN”.The Display has three pages/sub menus, which are as follows:
This Menu adjusts the Throttle Curves for the following Flight
Conditions:
• Normal: For starting and stopping the motor
• IDLE UP 1: For hovering flight
• IDLE UP 2: For circuit flying
• IDLE UP 3: For aerobatics
• HOLD: For autorotation landings
Switching between these flight conditions is made using the assigned (CONDITION) switches. When turning on the Transmitter, the NORMAL flight condition must be selected, otherwise a
FX-20
WARNING alarm will sound and you will be questioned whether to transmit a signal…The YES or NO must be selected and confirmed with RTN!
Example of the Pitch Curve for
‘NORMAL’ flight condition. Program the curve so that the motor r.p.m. remains as constant as possible across the entire pitch range.
Example of a Curve for ‘IDLE UP 1’.
For hovering, the settings are adjusted so that the correct rpm is held for all pitch settings.
Example of a Curve for “IDLE UP2”.
For circuit flying, the settings are adjusted so that the correct rpm is held for all pitch settings.
Example of a Curve for “IDLE UP3”.
For 3D aerobatic flying, the basic curve is a straight line. For 3D/inverted flying, a V-Curve is created such that full throttle is commanded at maximum negative as well as positive pitch settings. The aim is to achieve constant rotor speed being held for all upright and inverted pitch settings.
The illustrated curves are only shown as examples, since you must test fly your machine and adjust the individual settings to suit the specific model characteristics!
The programming of the Throttle Curve for all flight conditions is made in exactly the same way as for the Pitch Curve. The same also applies for programming the Hovering Gas Trim, in
IDLE UP1 on page two of the menu.
Model menu helicopter
Also it is possible to set up a different Throttle Curve of any particular throttle flight condition without operating the Condition switches. This is useful for adjusting the IDLE UP 1,2 & 3 throttle curves on the ground with the motor running. In the
“EDIT“ line of the Display, select the required flight condition throttle curve to be adjusted and press RTN and adjust as required.
To copy the modified curve to another Flight Condition, scroll to and select “COPY” and select the destination Flight Condition to be replaced with the displayed pre-set curve. Following a confirmation message (YES or NO), the existing condition curve will be over-written with the new one.
THROTTLE LIMITER (3/3)
The Throttle Limiter can be used to set a point on the throttle function so that it will be held to a limited opening whilst carrying it or programming is being carried out
Use MAX and Min to set the end point . Use CENTER to set the middle of the 3 point curve and a Tx control, e.g. a linear slide may used. Thereby one has a second throttle curve that will allow the motor to run throttles back.
The Gas Limiter Position is programmed by using a separate
Tx control e,g. Linear Slider. The throttle servo remains at its programmed position, even if the throttle stick is moved. The
Collective Pitch function remains fully controllable. Take heed of the COMBination and SEPA Rate trim settings for the flight condition.
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13.4 THR HOLD (AUTOROTATION SETTINGS)
Initially, this setting does not assign the throttle hold switch.
Prior to adjusting the parameters for the throttle hold, we suggest designating a throttle hold switch. To do so, access the
Condition menu within the Helicopter Model Menu options and activate HOLD to operate with a convenient switch such as
SG..
This function sets the throttle cut position for autorotation landings. The throttle servo operating speed can also be adjusted. (Speed) Select [THR HOLD] from the Model menu and access the setup screen shown below by touching the RTN button.
FX-20
13.5 SWASH MIXER
The swash mix function is used to trim the swash plate in the aileron (roll) direction and elevator (cyclic pitch) to compensate for any unwanted interactions occurring when any flight condition (NORMAL, HOLD and IDLE UP) is in operation. This function allows the independent rate adjustments of the ailerons, elevator and pitch. Four mixers are available for each mix, two mix rates are active and an operating switch may also be assigned.
Select [SWASH MIX] in the Helicopter Model Menu and confirm with “RTN”. The set-up Displays are:
Use the Condition select menu of the Model menu to assign the hold condition switch.
For example: SG
Finally adjust the Hold position by moving the cursor to the hold position item and touch the RTN button to switch to the data input mode. Adjust the %age rate of the “HOLD POS” by scrolling the touch sensor to set the throttle hold position.
Then move the cursor to the servo SPEED item and touch the
RTN button to switch to the data input mode. Adjust the rate by scrolling the touch sensor. The pre-set is 0 and the adjustment range is 0~27 (maximum delay).
Take care when starting the motor that THR HOLD and IDLE
UP are switched off.
In the second Display, move the cursor to the [ACT] item and touch the RTN button to switch to the data input mode. Select the ACT mode by scrolling the touch sensor. The display blinks and touch the RTN button to activate the mixing and return to the cursor mode. (ON is displayed.) The compensation mixing is made in the first Display and programming is made in the usual manner.
Virtual Swashplate Rotation (adjustable from 0-45°)
To achieve an adjustable virtual swashplate rotation of 45°, activate the first two mixers with a mix rate of 100% and Trim
“ON”. To finely tune possible swashplate control interaction differences, it is possible to achieve “straight and level” flight with the helicopter with mix settings with only small differences.
Selecting the Helicopter Model Type H4X makes a fixed Virtual
Swashplate Rotation of 45 degrees.
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Model menu helicopter
13.6 THR-MIX
This function corrects slowing of engine speed caused by swash plate operation during aileron or elevator operation. The method of applying clockwise or counterclockwise torque when pirouetting can also be corrected. Before adjusting values, select the Flight Condition to be changed.
Using the CAP
TOUCH SENSOR, select [THROTTLE MIX] at the Model menu and access the setup screen shown below by touching RTN.
Both Displays are:
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13.7 PIT -> RUD (REVOLUTION) MIXING
Use this mix when you want to suppress the reaction torque generated by main rotor pitch and speed changes during pitch operation. Adjust so that the nose does not move in the rudder direction. When a GY Series or other modern heading hold gyro is used, since correction is performed by the gyro, this mix is not utilised.
If this function is used when the gyro operation mode is the AVCS mode, the neutral position will change.
Before adjusting settings, select the relevant flight condition switch or the “EDIT“ function.
Select PIT to RUD in the Model Menu and access the single setup screen shown below by touching the RTN key.
Model menu helicopter
13.8 GYRO MIXING
This function used to adjust gyro sensitivity. The sensitivity as
%age and operation mode (Normal mode/ AVCS mode) can be set for each flight condition. The gyro gain/sensitivity can be switched by either each flight condition OR using separate switches with up to 5 gains/sensitivities being available to use.
Before making any adjustments, select the flight condition or activate switch mode by highlighting the “CONDITION” field and changing it to “SWITCH” oder dem Flugzustandsfunktiond Feld auswählen (NORMAL, GASVORW1, etc.)
Select GYRO in the Helicopter Model Menu and access the setup screen shown below by touching RTN:
The first Display programs the Mix Rate. move the cursor and highlight the mixing rate item you want to correct and touch the RTN button to switch to the data input mode. Adjust the rate independently by scrolling the touch sensor. The RATEs are displayed as %ages and have an adjustment range of
-100~+100% for each mixer and in both servo directions (When the RTN button is touched for one second, the rate is reset to the initial value). Touch the RTN button to end the adjustment and return to the cursor mode. The second column is used to activate every mix that is required. When [[--]] is set, the swash mixing function is operated by selecting the flight condition.
When setting an [ON]/[OFF] switch, move the cursor to the
[SW] item and touch the RTN button to call the H/W SELECT screen. Set the switch and its ON position. To set the Operation MODE, Move the cursor to the [MODE] item and touch the
RTN button to switch to the data input mode. Select the operation mode by scrolling the touch sensor to select either: CTRM mode which corrects near the center only, or LINear mode which corrects the complete range. Touch the RTN button to change the operation mode and return to the cursor mode.
In the ‘SW’ cell, a switch can be assigned and its operating direction defined in H/W SELECT menu. The pre-set condition is always on when the display is set to ‘--’.
When using this function, move the cursor to the ACT item and touch the RTN button to switch to the data input mode. Select the ACT mode by scrolling the touch sensor. Touch the RTN key to activate the mixing and return to the cursor mode. (ON is displayed.) In most cases, a straight-line mix curve is ideal for the Revolution Mixer.
To copy the curve, move the cursor to COPY item and touch the RTN key to switch to the data input mode. Select the copy destination IDLE UP condition, by scrolling the touch sensor and touch the RTN key. Select the YES and touch the RTN key. Now the relevant IDLE UP curve can be finely adjusted.
Make adjustments in small steps and check each change by making short test flights. When adding or reducing pitch from a stable hover, the nose of the helicopter should not rotate at all.
This function is normally switched ON in every Flight Condition. To turn it OFF, scroll to the ON field and select INH in the normal manner.
Move the cursor to the gyro TYPE selection item and touch the
RTN button to switch to the data input mode. Select the gyro type by scrolling the touch sensor. Select GY: when a Futaba
GYA gyro is used Or NORM: When other than Futaba GYA gyro is used touch the RTN button to change the gyro type and return to the cursor mode. The TYPE item can be used to select either an AVCS or NORM gyro type. Further advice will be found in the instructions of your gyro being used.
Depending upon the Flight Condition selected, the gyro gain/ sensitivity or RATE can be adjusted as a %-age value. Using the normal method, scroll to the RATE item with the “CAP
TOUCH SENSOR” and adjust the sensitivity. The Initial value is 80%. Touching the ‘RTN’-key for 1 second will reset to factory pre-set value.
Here, one can make fine adjustments to the mixer settings using FINE TUNING . Select the transmitter control required for these adjustments. Using the CAP TOUCH SENSOR move the cursor to the [--] item and touch the RTN button to ac-
57
cess the H/W SELECT Display screen. Move the cursor to the rate item and touch the RTN button to switch to the data input mode,. adjust the trim rate by scrolling the cursor; the current settings and direction are displayed. The initial value is 0% and the adjustment range is -20~+20%. When the RTN button is touched for one second, the gain/sensitivity is reset to the initial value. Touch the RTN button to return to the cursor mode.
If the GYRO settings in the FUNCTION menu (LINKAGE) have been assigned a separate transmitter control i.e. (Rotary Knob
LD) to make the trim adjustments, the menu settings and control position will work against each other. The Gyro function can, however, be accessed via a switch.
To do this, access CONDITION in the Display using the CAP
TOUCH SENSOR, change the selection to SWITCH, which may then be assigned. The Display is as follows:
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13.9 GOVERNOR MIXING
When using a Futaba GV-1 governor, this function is used to switch the RPM of the helicopter‘s rotor head. The rotor head speed can be switched with each flight condition or a separate switch to access up to 5 different speed settings from the transmitter. The governor is used by connecting the governor speed setting channel to CH7 (initial setting). The required head speed is entered as a %age value. Fine-tuning can be made by assigning a transmitter knob or trim.
Before making any adjustments, select the flight condition or activate switch mode by highlighting the “CONDITION” field and changing it to “SWITCH”.
Select GOVERNOR in the Helicopter Model Menu and access the setup screen shown below by touching RTN:
Model menu helicopter
For FINE TUNING settings, move the cursor to the “--“ item and touch the RTN button to access the selection screen. Select the control, e.g. “RG” in H/W SELECT. Move the cursor to the
RATE item and touch the RTN button to switch to the data input mode. Adjust the trim rate by scrolling the touch sensor. Initial value: 0% (0 rpm). Adjustment range: -20~+20% (-200~+200 rpm). When the RTN button is touched for one second, the sensitivity is reset to the initial value. Touch the RTN button to return to the cursor mode.
A switch may also operate the Governor function. Using the
“CAP TOUCH SENSOR“, highlight “CONDITION in the Display. Select “SWITCH” and the Display is as follows:
Also this function must firstly be activated in the ‘ACT/INH’ field. Highlight the required selection with the “CAP TOUCH SENSOR“ and activate with RTN. This field will now indicate “ON” or
“OFF”, dependent upon the switch position.
In the „SW“ item, by using the normal method, a switch can be assigned and its operating direction defined in H/W SELECT menu.
The pre-set condition is set to ‘--’, i.e. it is always turned on.
To access any of the ACTIVE # 1….5 gyro settings, use the
“CAP TOUCH SENSOR”, select “#1“ and touch “RTN“ key to select between #1..#5.
All other gyro adjustments are made in exactly the same manner as the “CONDITION” mode.
This function must be activated by selecting ACT in the INH field with the “CAP TOUCH SENSOR“ and activate by touching
“RTN”. The Display will now show either “ON” or “INH”.
Depending on the selected flight condition, the rotor head rpm can be programmed by moving the cursor to the RATE item, touch the RTN button to switch to the data input mode. Adjust the rpm by scrolling the touch sensor. Initial value is 50% (1500 rpm) Adjustment range is OFF, 0~110% (OFF, 1000~2100 rpm). When the RTN button is touched for one second, the sensitivity is reset to the initial value. Move the cursor to the
UNIT item and touch the RTN button to switch to the data input mode. Select the unit (% age or rpm) by scrolling the touch sensor. Touch RTN to confirm.
This function must be activated by selecting ACT in the INH field with the “CAP TOUCH SENSOR“ and activate by touching
“RTN”. The Display will now show either “ON” or “INH”.
Go to the SW field to assign a switch in the usual method to turn the governor rate ON or OFF as required. The preset switch status is ‘--’, i.e. The Gyro Gain is always turned on.
To access any of the ACTIVE # 1…. 5 governor settings, use the “CAP TOUCH SENSOR”, select “#1“ and touch “RTN“ key to select between #1. #5. All other governor adjustments are made in the same manner as when the “CONDITION” mode is active.
58
13.10 FUEL MIX
This function is utilized to refine in-flight needle adjustments of engines that offer mixture control carburetors. It utilizes a separate servo to adjust the mixture of the carburetor. A major advantage is that the mixture can be mixed to work in conjunction with the throttle function. If this option is activated, then the optimum mixture settings can be programmed for all throttle settings to give increased motor running reliability. An additional acceleration function ensures that the motor is enriched momentarily as the throttle is opened.
Before making adjustments to the settings, assign the
FUEL MIX to an unused channel in FUNCTION in the Linkage Menu. Also select the flight condition or use the
“EDIT” field to select a flight condition in the software.
Highlight the “FUEL MIX” option in the helicopter model menu.
The Display has two pages as below:
When programming they go as follows:
Activation of the Option
To use the automatic mixture control, it must first be activated in the ACT field from INH to ACT, ON is now displayed and the option is activated.
FX-20
Programming Curve
The Mixing Mode (MIX/UNMIX) must now be set. Highlight the
MIX field and select the mixer mode. When “MIX” is selected then the throttle curve setting data becomes the mixing master side data. When “UNMIX” is selected; the throttle stick position becomes the mixing master.
Programming the 5-point curve is made in the first menu page and with the usual method.
Copy Curve
To be able to copy the curve settings to another flight condition, highlight the “COPY” field with the “CAP TOUCH SENSOR“ and select the IDLE UP condition that needs to be adjusted and overwritten.
Adjustments for particular throttle conditions
The Tx Software contains two pre-programmed adjustable and accessible throttle conditions, already described in the Linkage
Menu section.
- Throttle Cut function (THR CUT), chapter. 10.11, page. 31
- Throttle Hold/ Autorotation (HOLD), chapter. 13.4, page 56
Operation linked with the throttle hold function, throttle cut function, and idle down function is possible. The throttle cut position can be adjusted to suit. Set it to the full closed position. At the same time the mixture servo will also move to its programmed position.
Move the cursor to the throttle cut or idle down item and touch the RTN button to switch to the data input mode. Adjust the servo position as %age value by scrolling the touch sensor.
Initial value: THR CUT: 17%, IDLE DOWN: 0% Adjustment range: THR CUT: 0~50%, IDLE DOWN: 0~100%. When the
RTN button is touched for one second, the rate is reset to the initial value.
Model menu helicopter
59
14. PROGRAMMING EXAMPLE FOR FX-20 TRANSMIT-
TER EXAMPLE: 4 FLAP GLIDER
1. Create new model memory in Linkage Menu
FX-20
1x
2 x
1x
2. Assign Model Type
1Sek.
60
1x
1x
Programming example
1x
1x
1Sek.
FX-20
3. Select Modulation / Receiver Type (Modula-
tion MULTI)
1x
1x
1x
Programming example
4. Bind receiver to transmitter
Switch on transmitter and select to „Radiate“.
During the RF Pairing or Binding process, no other 2.4 GHz transmitters should be turned on in the vicinity.
Press the „LINK“ button on the receiver for 2 seconds.
Observe the receiver LED to ensure that the Pairing was made.
61
FX-20 Programming example
5. Create a Model Name
The Model Select Menu can be accessed via the Start Display as well as the Linkage Menu.
Highlight the required model Memory
1x alphanumeric cha-
1x racters by scrolling the sensor left or right and select with RTN.
4x
1x
62
Spaces are inserted with the right hand arrow key below Enter.
1x
1x
Storing the new name is confirmed with a beep, the cursor will
1Sek.
then move to the left hand side.
1x
FX-20 Programming example
63
6. Define Servo Direction/Reverse
1x
FX-20 Programming example
7. Set Servo Neutral/ Sub Trim
2 x
1x
1x
1x
1x
64
Note: touching RTN
1x for 1 second will reset the value to zero.
FX-20
8. Set Servo Throws and Limits
1x
Adjust the servo throw so that the maximum mechanical hrow is achieved without stalling
1x the servo. If necessary, limit maximum throw using the Limit Function.
1x
Programming example
65
9. Set Fail-safe (Modulation MULTI)
1x
FX-20
HOLD-Mode: The receiver stores the last „good“ signal and the servos maintains their last commanded position until the interference stops.
This is factory pre-set for the Throttle channel and is, due to safety reasons, only recommended to be used on servo channels (MULTI operation)!
Programming example
(F/S) Fail-Safe: Here all the servos will move to a transmitter pre-programmed position, which is then stored by the receiver.
For safety, it is recommended that, Failsafe position for Drive
Motors is set to OFF or Idle.
Changing channel 3 Throttle to Fail-safe Position (F/S):
1x
1x
Program Motor Control or Switch to its respective (OFF) position!
IIn 7 CH operation, the Failsafe Function is assigned to channel 3 (throttle) and cannot be changed. In „MULTI“ operation, channels 1-8 may all be set libary.
1Sek.
66
Battery-Fail-Safe warns the Pilot, when receiver battery has only a little power remaining.
In MULTI mode the Battery F/S can be switched on or off.
Activate Battery-Fail-Safe for the Throttle:
1x
FX-20
1x
1x 1x
1x
Programming example
To be able to regain control after Battery F/S , The battery failsafe may be released or Reset by operating a predefined control on the transmitter (default is throttle).
Select a switch for Battery-Fail-Safe Reset:
1x
1x
1x
67
68
1x
1x
1x
1x
1x
FX-20
1x
1Sek.
Programming example
10. Set Dual Rate in Model Menu
1x
1x
1x
FX-20
Select a switch to changeover between the different control throw settings.
1x 1x
1x 1x
1x 1x
Programming example
69
Operate switch SG, to be able to pro-
1x gram the second control throw.
Operate switch SG to check the set-
1x tings.
FX-20
70
1x 1Sek.
Programming example
11. Set Expo
2 x
Select a switch to changeover between the different control
1x curve settings.
1x
1x
1x
FX-20
1x
Define first control curve, switch position 1:
Programming example
1x
71
1x
Move switch SB to position 2, to be able to set the second control curve.
1x
Operate switch SB to check the settings.
FX-20
72
1x
1Sek.
Tip: Expo makes it possible to soften the control around the neutral position but still retain maximum control movement.
A good starting point for the first flights is to have Expo set between 20-30 %.
Programming example
12. Set Aileron Differential
2 x
1x
Adjust Left Aileron (AIL):
FX-20
1x
1x
Adjust Right Aileron (AIL2):
Programming example
Test in Servo Menu
1x
(see also page 70):
Full deflection right
Full deflection left
1x
73
Butterfly Mixer Aileron and Flaps as Airbrake
The ailerons move upwards and the camber flaps move up to
90° downwards, which causes an enormous braking effect.
1x
Adjust Left Aileron:
FX-20
1x
Adjust Right Aileron:
Programming example
2 x
1x 1x 1x
74
1x
Adjust Left Flap:
1x
1x
Adjust Right Flap:
FX-20 Programming example
1x
I n many cases when using Crow Braking, the elevator position must be set slightly up or down (elevator compensation).
The setting of the elevator compensation can be checked in flight and remains initially unchanged. At a safe height, operate the mixer and observe the flight path of the model.
If the nose pitches up, then some down elevator must be set.
If the model dives steeply, then up elevator is needed. A good staring point for the compensation is 5-10%.
1x
75
Setting the elevator compensation mix:
1x
Activate the Butterfly Mixer:
FX-20 Programming example
Define the Offset for the Butterfly transmitter control. The
Offset defines at which point the control takes affect on the
Ailerons/ Flaps to start moving as airbrakes.
1x
The allocated control for the Butterfly Mixer is the Throttle stick with ratchet.
Move the control to the required position, the position will be shown in the lowest
Display field. e.g. <100%>
Naturally, a switch
1x can also be chosen.
1Sek.
1x
76
Check the settings in Servo Menu:
FX-20
1x
So that the deflected ailerons have sufficient throw for some aileron (roll) control, the Butterfly function can be set with a small amount of aileron differential. Thereby, the throw of the downgoing aileron is increased.
1x
1Sek.
2 x
The ailerons (chan-
1x nels 1 and 6) have now the same throw upwards, the camber flaps (channels 7 and 8) have the same throw downwards.
1x
1x
1Sek.
Programming example
77
Define the switch to turn the Butterfly Mixer on and off.
To avoid accidental operation of the Butterfly Mixer control, a separate „safety“ switch may be assigned to de-/activate the mixer
1x
FX-20
1x
1x
2 x
1x
1x
78
1x
1x
1Sek.
Programming example
Program Aileron-Camber Flap Mixer
When operating the ailerons, the flaps will move in the same sense as them to operate as ailerons . In a turn, the roll rate improves and the aerodynamic drag is reduced at the same time.
Adjust Left Camber Flap:
FX-20
1x
2 x
1x
1x
1x
Adjust Right Camber Flap:
1x
Programming example
79
1x
1x
80
1x
1x
Activate Aileron-
Camber Flap Mixer:
FX-20
The Aileron-> Cam-
1x ber Flap Mixer is always active.
Programming example
1x
Define the switch to turn the Butterfly Mixer on and off.
1Sek.
FX-20
1x
1x
Programming example
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15. TRANSMITTER SOFTWARE UPDATE
The FX-20 Software can be updated by the user to the latest version. The Update data is available to download from the robbe-Homepage. We recommend that you register at http:// support.robbe.com, so that you can receive any new Updates by E-Mail Newsletter and be able to access the protected Support areas of the website.
This data must be copied to a Card Read/writer to copy the data to an SD-card. The upload of the new Software into the
Tx memory is as follows.
SOFTWARE UPDATE:
1) Download compressed Software data from robbe Support
Server http:// www.robbe.com/rsc.
2) Unzip data.
3) A folder name of “FX-20 update” will be created.
4) Open folder and double click FX-20 update.exe.
5) The “Futaba File System Utility” will open.
6) Select the SD Card drive and click “OK”.
7) A question follows:
“Data Copy on the SD-card. OK?”
Click OK
8) The following message will appear:
“The copy to the SD-card ended normally”
9) Place the SD card into the Transmitter:
I nsert the SD card with the Update-data in to the receptacle in the battery compartment of Tx
FX-20
Software update switch
SD-cart tunnel
Update position
SD-cart tunnelling
10) Slide the ‘Update’-switch to the Update-position. Use a
jeweller’s screwdriver for this.
11) Turn the Tx on. After approx. 10 seconds, the following
message will be displayed.
Follow the on-screen instructions and touch the ‘RTN’-key for at least 3 seconds.
When no card is present or one without or corrupt data is inserted, the following message will appear:
Turn the Tx off and check the card and the data.
12) After touching the ‘RTN’-key, the data transfer will com-
mence.
Software Update
13) As soon as the data transfer has successfully taken place,
the Display will be:
14) Turn the Tx off and move the Update-switch to its normal
position.
Note:
Take care that battery doesn’t slide out of its compartment during the update! This will cause a complete Software crash! To prevent this happening, secure the battery by replacing the cover.
82
16. Tips for the installation of 2.4 GHz receivers and aerials
Over the years, RC users gather their own experience in the installation and use of RC components. 2.4 GHz technology has ushered in a new epoch, which brings enormous advantages. At the same time this new equipment is different in nature from previous technology, and we need to adopt appropriate measures when installing and operating a 2.4 GHz system.
One of the most common mistakes is to wrap the receiver in foam or fit it in a foam tube as we have always done with 35
MHz receivers, in order to protect the unit from vibration. This is not necessary with 2.4 GHz FASST receivers, as they do not contain ceramic filters, and are therefore not vulnerable to vibration in the same way. This “well meant” measure is actually counter-productive, as 2.4 GHz receivers contain high-performance ICs with a fairly high current drain, and this results in heat generation. Wrapping the receiver in foam prevents waste heat being dissipated from the receiver. We recommend that you install 2.4 GHz receivers using doublesided foam tape (or Velcro tape). If possible the tape mounting should not cover the full area of the case; it is better to fit tape “feet”, so that air can circulate freely around and under the receiver. Installing the receiver vertically also enhances air circulation. The temperature range for radio control system components is generally stated as -15°C ... +55°C: this is the typical range, which is stated by manufacturers of electronic components. This temperature range applies to virtually all electronic apparatus used in our daily lives.
The same range (-15 ... +55°C) also applies to RC system receivers, has done for many years, and is equally applicable to the new generation of 2.4 GHz FASST receivers. For other 2.4 GHz systems this temperature range is significant because they employ ICs developed for WLAN applications; these are generally operated under normal conditions, and their temperature limits are therefore the same. Of course, the stated maximum is a theoretical ‘safe’ limit, and in practice these receivers can cope with considerably higher ambient temperatures (approx. 70 - 75°C). Nevertheless, manufacturing tolerances mean that the component manufacturers cannot guarantee higher values.
For these reasons we recommend that you handle your 2.4
GHz equipment with appropriate caution, and in particular observe the following points:
FX-20
• The use of two LiPo cells without voltage reduction is not recommended.
• Voltage converters used with LiPo cells generate their own waste heat, and should not be positioned in the same compartment as the receiver, or too close to it.
• On hot, sunny days you should not leave models in the car, to avoid the model and electronics becoming too hot.
• Provide effective ventilation, or - even better - take the model out of the car, and park it in the shade of the vehicle.
• If your model is fitted with a clear canopy, or one painted a light colour, the sun shining through the canopy can heat up the fuselage and RC components. You can avoid this problem by removing the canopy to ensure good air circulation in the fuselage, or by covering the area with a light-coloured cloth.
• Cover dark-coloured models with a cloth, or park them in
Never leave slim / black CFRP / GRP fuselages containing a receiver in the car or in bright sunlight.
• Do not install the receiver close to a motor and / or exhaust system, as the radiated heat may cause the receiver to overheat.
• Silencers installed inside fuselages should be partitioned off using balsa panels or similar to avoid heat transfer and prevent excessive temperatures in the fuselage.
• Take measures to ensure that air can circulate through the fuselage.
• You may wish to cut ventilation openings in the canopy or fuselage.
Supplementary notes regarding additional RC components.
Although receivers are a special case, most other electronic components will also benefit from the measures suggested above.
• Speed controller heat-sinks, which are already warm or hot, are not so efficient at dissipating heat, and this may result in components overheating in use.
• At temperatures of about 45°C and above, LiPo batteries have a much worse energy yield (approx. 10 - 12%), which in turn will have an adverse effect on your model’s performance.
• Servos also lose a proportion of their power when hot: the higher the temperature of the motor winding, the worse its efficiency. This means that the power of a servo may be reduced by up to 20% at temperatures of 55°C and above compared with cold conditions. This figure is quickly reached, as servo motors generate their own heat.
General information on the subject of 2.4 GHz RC systems
• In general terms the range of 2.4 GHz FASST systems is greater than that of 35 MHz equipment. Close to the ground the range is around 2000 metres, and in the air it is more than 3000 metres. The potential range reductions described in the following section, caused by unfavourable weather conditions and obstacles, have no adverse effect on the system’s function; all they do is reduce the safety margin.
• Large obstacles between the transmitter and the receiver can have a damping or blocking effect on the signal.
• Close to the ground the transmitter signal is damped more severely than is the case with 35 MHz systems. On foggy days and / or when the ground is wet the range may be reduced at very low altitudes If a model is close to the ground, and if an obstacle (person, vehicle, object etc.) moves between the transmitter and the receiver, then effective range may be significantly reduced.
• 2.4 GHz signals radiate from the transmitter virtually in a straight line, for which reason it is essential to maintain visual contact with the model at all times.
• The FASST R R607, R617, R608, R6008 and R6014 receivers feature a diversity system with dual aerials and corresponding input stages. This system constantly checks the signal level at both aerial inputs, and switches lightning-fast to the stronger signal, without any interruption.
• Arranging the two aerials at an angle of 90° to each other significantly improves the attitude-dependency, which is usual with a single aerial, and this in turn provides a clear improvement security of reception.
• The PRE-VISION software constantly scans the input signal, and carries out error-correction as and when necessary.
To obtain optimum reception results, please note the following points regarding aerial deployment:
• The two aerials should be deployed in a straight line.
• The angle between the two aerials should be approximately
90°.
This area lay stretched possible
Antenne Koaxial Kabel aetials Coaxial cable
• Large models often contain quite large metal parts, which
83
may have a damping effect on RF reception; in such cases the aerials, should be positioned to left and right of the offending object.
• The aerials should not be deployed parallel with each other, and should always be positioned at least 1.5 to 2 cm away from the following items:
• Anything made of metal or carbon, electrical cables, control ‘snakes’, control cables, carbon fibre pushrods, carbon roving reinforcements, etc.
• High-current speed controller cables and motor leads;
• Sparkplugs, glowplugs, glowplug heating circuits;
• Locations liable to static charge build-up, e.g. toothed belts, turbines etc.
• Where the fuselage includes materials with a shielding effect (carbon, metal, etc.), route the aerials out of the fuselage by the shortest possible route.
• The aerial ends should never be attached to electrically conductive materials (metal, carbon) either inside or outside the model.
• This applies not only to the co-ax cable but also to the end part of the aerials.
• Avoid bending the co-axial cables through tight radii, and do not kink the leads.
• Protect the receiver from damp at all times.
Notes on installing 2.4 GHz FASST receivers:
• Wherever possible, the receiver should be powered by consisting of low-impedance NC or NiMH cells.
• Pulsed BEC systems used as receiver power supplies must be adequately specified; if the voltage under load falls below 3.8 Volts, then the receiver will carry out a reset and restart, which equates to a period of signal loss lasting about two or three seconds. This can be prevented by using so-called RX capacitors at the receiver, which bridge brief voltage collapses (RX capacitor, 1800 uF, No. F 1621 or
22.000 uF, No. F 1622).
• FASST 2.4 GHz receivers are relatively immune to ‘electro-smog’ (such as metal-to-metal noise, stray RF signals,
84
FX-20 static charge effects, etc.) due to their high intermediate frequency of 800 MHz. At frequencies of about 300 - 400 MHz and higher the amplitude of these effects is quite small.
Certain supplementary electronic devices are known to be powerful sources of interference, and under unfavourable circumstances it may be necessary to install a suppressor filter, No. F 1413, in order to keep such interference from the receiver. A range check will show up whether this type of filter is actually required or not.
To prevent the build-up of powerful static charges certain measures are required at the model:
Helicopters:
• Use an earthing strap to connect the tail boom to the chassis. Toothed-belt tail rotor drive systems may require a
“copper brush” to dissipate electrical charges from the toothed belt. It may also be necessary to connect the toothedbelt pulleys electrically to the chassis.
• In electric-powered model helicopters it is generally necessary to connect the tail boom to the motor case.
• If the model is fitted with CFRP / GRP blades and a carbon fibre tail boom, massive static charges can be generated at high rotational speeds when air humidity is low. To avoid this an electrically conductive connection should be present between the tail rotor gearbox and the main rotor shaft. The use of anti-static sprays (e.g. Kontakt Chemie) has also proved effective.
Turbines:
• Connect an earthing strap to the turbine shielding plate to prevent the build-up of static charges.
• The high airspeeds of fast GRP model jets can result in high static charges (around 40,000 Volts), especially in conditions of low humidity. If this produces a problem, all the model’s GRP components with a surface area larger than about 10 cm² should be interconnected using an electrically conductive material.
• Turbine connections, (that are routed outside of the fuselage, such as fueltank connections, etc.), should also be connected to each other electrically in order to avoid static charge problems. Static charges affecting the refueling hose can even have the effect of operating shut-off valves.
• The tyres of the aircraft’s undercarriage can also provoke static charge effects, and should therefore be fitted with copper brushes.
16.1 RF OFF/ RANGE TEST (POWER DOWN MODE)
Range test:
It is recommended that a range test is made every time before operating a new model or receiver for the first time. The model should not be placed on the ground, but approximately 1-1,5 m above the ground. Place the model on a plastic or wooden table or a cardboard box or crate. DON’T use a metal table keep it away from conductive objects, such as fences or cars etc. and that the helper doesn’t stand too close to the model.
Activate the Power-Down Mode:
• Turn on Tx. And touch RTN at the same time Select RANGE
TEST and confirm with RTN
• This mode will transmit on reduced power
• When this mode is activated, the red right hand LED flashes and beeps every three seconds.
• Switch on the model without engine running or connected.
• Slowly move away from the model, operating the controls slowly and continuously
• During this activity, check that the controls follow the stick input with no jerkiness or holding. If necessary, get a helper to observe the controls as you perform the range check.
• Move the Tx from left to right to simulate different aerial positions.
• You should achieve 50 m range in Power-Down-Mode, better are 80 - 120 m.
• If this first range test is ok, then perform the same test but with the motor running (ENSURE MODEL IS SECURELY
RESTRAINED)
• The range may be reduced by a maximum of 20%. If it noticeably less, then the receiver is getting interference from the power unit. Get help to make sure whether all of the above mentioned interference protection measures have been made correctly
• The Power-Down mode remains active for only 90 seconds and switches automatically back to normal operation. To extend the Power-Down-Mode during the 90 seconds, select the “NEW START” field with the CAP TOUCH SEN-
SOR and press the “RTN” button. The time will be extended for a further 90 seconds.
• Should the Power-Down-Mode be required after the time limit, and then the Tx must be switched off and on again.
The power-Down-Mode can be switched on as previously described.
Attention:
Never take off with the Tx in Power-Down- Mode.
For safety reasons a further range test is not possible when the Tx is already transmitting at full power. It is necessary to turn the Tx off and on again. This measure stops an accidental switch to range test power during normal operation.
FX-20
RF OFF
When using a flight simulator or programming the Tx. Battery life will be extended and improved with the Radio Frequency
(RF) switched off. Use the following procedure.
Switch on using the same procedure as with the Range Test.
Highlight RF OFF in the lower part of the Display and confirm with RTN. The Start Display will now be active but will show that the Tx active is but with no RF radiating.
16.2 SWITCH HARNESS
It must be possible to operate the receiving system switch easily, without mechanical restriction, i.e. the cutout in the fuselage side must be large enough to avoid obstructing the mechanism. In powered models with internal-combustion engines, the switch should be mounted on the opposite side to the exhaust, to avoid the danger of oil penetrating the housing and soiling the contacts. If your model is fitted with a large number of high-power digital servos, we recommend the use of a standard commercial dual-battery power supply system.
1 6.3 SERVO LEADS
When deploying servo leads, please ensure that they are not under any mechanical strain and are not kinked or bent tightly, as this might cause them to fracture over time. Make sure there are no sharp edges, which might damage the cable insulation.
All connectors must be firmly fitted and secure. When disconnecting servo plugs, pull on the plastic housings - not on the wires. Servo leads should not just be left trailing loosely inside the fuselage; it is far better to attach them neatly to, say, the fuselage side or the chassis using adhesive tape or cable ties. It is not permissible for modifications of any nature to be made to the receiving system components. Avoid reversed polarity and short-circuits of all kinds, as the electronics are not protected against such errors.
16.4 SERVO SUPPRESSOR FILTERS
If you wish to use long servo leads or extension leads, please note that interference may be picked up via the over length cables. Where servo cables are longer than two normal leads
(approx. 50 cm), you should at least use twisted cables (No. F
1452).
Even better: use suppressor filters, No. F 1413.
16.5 INSTALLING SERVOS
When installing servos in a model, always use the rubber grommets and tubular brass spacers (eyelets) supplied. When you fit the servo retaining screws, ensure that they are not tightened beyond the point where the brass eyelets make contact top and bottom; if the rubber grommets are compressed to this point; they are no longer capable of absorbing vibration.
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1
2
3
4
1
2
3
4
5
5
6
1. Woodscrew
2. Washer
3. Rubber grommet
4. Metal spacer sleeve
5. Madera
1 Nut
2 Washer
3 Rubber grommet
4 Metal spacer sleeve
5 Placa de aluminio
6 Tornillo
In RC model cars the servos are usually fitted in the openings provided for them in the RC installation plate. Robbe quickrelease servo mounts are a good choice for model boats. Please take great care over mounting servos, as they are sensitive to vibration.
16.6 SERVO TRAVEL / SERVO OUTPUT LEVERS
The crown-gear servo-lever facilitates mechanical adjustment of the neutral position.
Setting the neutral position
Remove fixing screw of driving lever, lift off lever, refit in required neutral position and retighten screw.
Effect
For the smallest possible adjustment (3.6°) to the RIGHT,
ARM 2 of the 4-armed servo-lever has to be placed on the closest possible position of base line A so that arm 3 is adjusted by 7.2° and arm 4 by 10.8°. For the smallest possible adjustment of the LEFT, ARM 4 has to be placed on the next position of base line A.
Division
The gear shaft and gear drive lever are divided into 25 segments. Therefore, any change of setting amounts to 360°: 25
= 14,4°/segment. The minimum adjustment depends on the number of lever arms. For a 4-armed lever, this minimum adjustment amounts to 360° : (25 x 4) = 3.6°, for a 6-armed lever this equals 2.4°. ARM 2 can be moved by 2.4° to the right,
ARM 3 by 4.8° to the right, ARM 6 by 2.4° to the left, ARM 5 by 4.8° to the left, ARM 4 by 7.2° to the left and right.
86
FX-20
A range of different servo output arms is available for robbe servos, and they are illustrated in the picture at the bottom of the page. The drawing also shows the angular change per individual spline segment.
16.7 INSTALLING PUSHROD LINKAGES
The basic rule when installing mechanical linkages and control surfaces is that they must be extremely free moving, otherwise the servos will draw excessive currents, and the effective operating time per battery charge will be greatly reduced. At the same time the centring accuracy of the control system will be worse, which in turn has a negative influence on the model’s flying characteristics.
Pushrod
Retaining screw
17. THE SYSTEM IN USE
All robbe-Futaba receivers continue to work with full range at reduced voltage, down to the point where the supply voltage falls to 3 V. The advantage of this feature is that the receiving system will normally continue to work even if one cell fails completely (short-circuit), since robbe-Futaba servos still work down to 3.6V, albeit at slightly lower speed and with reduced power. This is very important in winter, when ambient temperatures are very low; otherwise any momentary voltage collapse could cause the loss of a model. However, there is a drawback: under certain circumstances the user may not even notice the failure of a battery cell. For this reason it is important to check the receiver battery from time to time. We especially recommend the use of robbe battery monitors, No. 8409, which indicate the condition of the battery by means of a chain of LEDs.
17.1 POWER-ON SEQUENCE
Always switch the transmitter on first, and only then the receiver; reverse the sequence when switching off. When you switch the receiver on, the servos run to the neutral position.
We recommend that you check each function in turn by operating the associated stick or other transmitter control. Check that each control surface operates in the correct “sense” (direction) relative to the stick movement. If any control surface moves in the wrong direction, that servo must be reversed at the transmitter.
17.2 ‘ELECTRICAL NOISE’ INTERFERENCE
If your radio control system is to operate safely and reliably, it is essential to avoid what is known as electrical ‘noise’ interference. This problem is due to metal parts - such as pushrods - rubbing against each other intermittently as a result of vibration. For this reason the linkage to the engine’s carburettor must always terminate in a plastic clevis - never connect a metal linkage directly to the carburettor arm without an insulator between them.
17.3 ELECTRIC MOTORS
All conventional electric motors in RC models must be effectively suppressed, otherwise the sparks which are generated between the armature and the carbon brushes when the motor is running will have a serious adverse effect on the radio
Power connections
100 nF
100 nF
47 nF
Electric motor
control system, i.e. they cause interference. We recommend robbe suppressor filters, No. 8306, 8307 or a set of suppressor capacitors, No. 4008. Each electric motor in the model must be suppressed individually as shown in the diagram.
17.4 ELECTRONIC IGNITION SYSTEMS
The ignition systems of spark-ignition petrol engines can also generate interference, which has an adverse effect on the radio control system. Never power an ignition system from the receiver battery; a separate battery is essential. Be sure to use properly suppressed spark plugs, plug caps and shielded ignition cables. Keep the receiving system as far away as possible from any ignition system.
17.5 RECEIVER BATTERY CAPACITY / OPERATING
TIMES
This rule applies to all types of battery: at low temperatures battery capacity is severely reduced, i.e. safe operating times are shorter in cold weather.
The safe operating time varies greatly according to the number of servos connected to the receiver, the stiffness of the linkages, and the frequency of control commands generated by the pilot or operator. A standard servo draws between 150 mA and 600 mA when the motor is running, and about 8 mA at idle.
Super-servos and powerful digital units can draw peak currents of up to 1300 mA at full power.
Be sure to select a receiver battery with ample capacity, bearing in mind the likely current drain and the number of servos in the model.
Ensure that all mechanical linkages are free moving, and that the servo is not obstructed in its travel. A servo running constantly against a mechanical stop or limit draws a very high current, and will also inevitably suffer damage in the long-term.
You will notice the point where the receiver battery is almost discharged, because the servos will respond much more slowly than normal. The moment you realise this, land the model immediately and recharge the battery.
We recommend the use of a battery controller to monitor the receiver pack during a session, as this gives you a useful idea of the state of charge of the battery between flights.
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18. GUARANTEE
All our products, including this radio control system, are guaranteed for the full statutory period of 24 months. If you wish to make a valid claim under guarantee, please contact your dealer, who is responsible for the guarantee and the processing of any guarantee claim. During the guarantee period we will correct any material defects or faults in operation or manufacture at no cost to you. All other claims, e.g. in the case of consequent damage, are excluded from the guarantee. The system must be returned to us carriage-paid; we will pay the cost of transport back to you. We will not accept shipments sent C.O.D. We accept no liability for damage in transit or loss of your shipment; we recommend that you take out suitable insurance to cover this. Send your equipment to the robbe Service Centre for the country in which you live.
To process your guarantee claims the following conditions must be fulfilled:
• The purchase receipt must be included with your shipment.
• The units must have been operated in accordance with the operating instructions.
• Recommended batteries and genuine robbe accessories must have been used exclusively.
• Damage due to damp, tampering, reversed polarity, overloading and mechanical damage are not covered.
• Please be sure to include a succinct description of the problem to help us locate the fault or defect.
19. LIABILITY EXCLUSION robbe Modellsport are not in a position to influence the way you install, operate and maintain the radio control system components. For this reason we are obliged to deny all liability for loss, damage or costs which are incurred due to the incompetent or incorrect use and operation of our products, or which are connected with such operation in any way. Unless otherwise prescribed by law, the obligation of the company to pay compensation is limited to the invoice value of the robbe products, which were immediately and directly involved in the event, which caused the damage. This does not apply if robbe is found to be subject to unlimited liability according to binding legal regulation on account of deliberate or gross negligence.
20. POST OFFICE REGULATIONS
The R&TTE (Radio Equipment & Telecommunications Terminal Equipment) Directive is the new European regulation, which applies to radio systems and telecommunications apparatus, and is applicable to all such equipment, which has general conformity approval in the EC. One section of the R&TTE Directive regulates the setting up and operation of radio systems in the European Community. An important change compared with earlier regulations is the abolition of approval procedures.
The manufacturer or importer must submit the radio system to a conformity assessment procedure before marketing the equipment, and is obliged to notify the appropriate authority
(register) when the process is completed.
The CE symbol is applied to all such equipment, and indicates that it fulfils the currently valid European norms. An exclamation mark is also applied to radio transmitting equipment as an indication that the approved frequencies are not uniform throughout Europe. This symbol is used in all the countries of the European Union. Other nations such as Switzerland, Norway, Estonia and Sweden have also adopted this directive.
Your radio control system is registered (i.e. approved) in all these countries, and can legally be sold and operated in all of them. Please note that this radio control system may only be operated on the frequencies approved for use in your country.
A frequency table is supplied with your system. We are obliged to point out that the responsibility for this, and also for operating a radio system, which fulfils the requirements of the directives, rests with you, the user. In Germany radio control systems for models operating in the frequency bands of 27 MHz, 35
MHz and 40 MHz do not need to be registered or licensed, and no fee is payable, but this may not apply in the country in which you live and operate the system. In Germany a ‘General Licence’ to use these frequencies is granted by right, and a copy of this General Licence is supplied with your system.
Before using the system please check whether you need to register or license your radio control equipment in the country where you intend to operate it.
21. CONFORMITY DECLARATION robbe Modellsport GmbH & Co. KG hereby declares that this product satisfies the fundamental requirements and other relevant regulations contained in the following Directives:
Regulation relating to radio equipment and telecommunications transmitting apparatus (FTEG) and Directive 1999/5/EG
(R&TTE), Directive RL 2004/108/EG (electro-magnetic compatibility), Directive LVD 73-23/93/68 EWG (low voltage directive)
The original Conformity Declaration can be viewed on the Internet under www.robbe.com: click on the logo button marked
“Conform” which is included in each device description.
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21. German Compliance Information Statement
At the operating frequency of 2400 ... 2483.5 MHz, the operation of radio systems is registration or fees. There was a general allocation of spectrum for use by the general public issued by the Federal Network Agency.
Allgemeinzuteilung von Frequenzen im Frequenzbereich 2400,0 – 2483,5 MHz für die Nutzung durch die Allgemeinheit in lokalen Netzwerken; Wireless Local Area Networks (WLAN- Funkanwendungen).
Auf Grund § 47 Abs. 1 und 5 des Telekommunikationsgesetzes ( TKG ) vom 25. Juli 1996 ( BGBl. I S.
1120 ) in Verbindung mit der Frequenzzuteilungsverordnung (FreqZutV) vom 26. April 2001 (BGBl. I S.
829) wird hiermit der Frequenzbereich 2400,0 – 2483,5 MHz zur Nutzung durch die Allgemeinheit für
WLAN – Funkanwendungen in lokalen Netzwerken zugeteilt.
Die Nutzung der Frequenzen ist nicht an einen bestimmten technischen Standard gebunden.
Die Amtsblattverfügung Nr. 154/1999 „Allgemeinzuteilung von Frequenzen für die Benutzung durch die
Allgemeinheit für Funkanlagen für die breitbandige Datenübertragung im Frequenzbereich 2400 –
2483,5 MHz (RLAN - Funkanlagen)“, veröffentlicht im Amtsblatt der Regulierungsbehörde für Telekommunikation und Post (Reg TP) Nr. 22/99 vom 01.12.99, S. 3765, wird aufgehoben.
1. Frequenznutzungsparameter
Frequenzbereich Kanalbreite
/Kanalraster
2400 - 2483,5 MHz keine Einschränkung
Maximale
äquivalente
Strahlungsleistung
10 mW (EIRP)
Die äquivalente Strahlungsleistung bezieht sich, unabhängig vom Modulations- bzw. Übertragungsverfahren, auf die Summenleistung mit Bezug auf den Frequenzbereich von 2400,0 bis 2483,5 MHz.
2. Nutzungsbestimmungen
2. Geräte, die im Rahmen dieser Frequenznutzung eingesetzt werden, unterliegen den Bestim mungen des „Gesetzes über Funkanlagen und Telekommunikationsendeinrichtungen“ (FTEG) und des „Gesetzes über die Elektromagnetische Verträglichkeit von Geräten“ (EMVG).
3. Diese Frequenzzuteilung berührt nicht rechtliche Verpflichtungen, die sich für die Frequenz nutzer aus anderen öffentlich-rechtlichen Vorschriften, auch telekommunikationsrechtlicher
Art, oder Verpflichtungen privatrechtlicher Art ergeben. Dies gilt insbesondere für Genehmigungs- oder Erlaubnisvorbehalte (z.B. baurechtlicher oder umweltrechtlicher Art).
4. Der Frequenznutzer ist für die Einhaltung der Zuteilungsbestimmungen und für die Folgen von
Verstößen, z. B. Abhilfemaßnahmen und Ordnungswidrigkeiten verantwortlich.
5. Der Frequenznutzer unterliegt hinsichtlich des Schutzes von Personen in den durch den Betrieb von Funkanlagen entstehenden elektromagnetischen Feldern den jeweils gültigen Vorschriften.
6. Beauftragten der Reg TP ist gemäß §§ 7 und 8 EMVG der Zugang zu Grundstücken, Räumlichkeiten und Wohnungen, in denen sich Funkanlagen und Zubehör befinden, zur Prüfung der
Anlagen und Einrichtungen zu gestatten bzw. zu ermöglichen.
7. Beim Auftreten von Störungen sowie im Rahmen technischer Überprüfungen werden für
WLAN - Funkanwendungen im 2,4 GHz - Frequenzbereich die Parameter der europäisch harmonisierten Norm EN 300 328-2 zu Grunde gelegt. Hinweise zu Messvorschriften und
Testmethoden, die zur Überprüfung der o. g. Parameter beachtet werden müssen, sind ebenfalls dieser Norm zu entnehmen.
Maximale spektrale Leistungsdichte bei Frequenzsprung-
Spektrumspreizverfahren (FHSS)
100 mW/100 kHz
Maximale spektrale Leistungsdichte bei Direktsequenz Spektrumspreizverfahren (DSSS) und anderen
Zugriffsverfahren
10 mW/1 MHz
225-13
3. Befristung
Diese Allgemeinzuteilung ist bis zum 31.12.2013 befristet.
Hinweise:
1. Die oben genannten Frequenzbereiche werden auch für andere Funkanwendungen genutzt.
Die Reg TP übernimmt keine Gewähr für eine Mindestqualität oder Störungsfreiheit des Funkverkehrs. Ein Schutz vor Beeinträchtigungen durch andere bestimmungsgemäße Frequenznutzungen kann nicht in jedem Fall gewährleistet werden. Insbesondere sind bei gemeinschaftlicher Frequenznutzung gegenseitige Beeinträchtigungen der WLAN - Funkanwendungen nicht auszuschließen und hinzunehmen.
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23. ACCESSORIES
Trainer cord
No. F1591
Skysport T4YF, T4EX, FF9,
T12Z, T14MZ, FX-40, FX-30
Y-lead No. F1423
To connect two servos in parallel, to one receiver output socket.
Power Peak I4 EQ-BID No. 8507
The ultimate, fourth generation intelligent charging station and incorporating convenient battery management. For charging and discharging NC, NiMH, Lead and LiFe, LiIo,
LiPO batteries, with integral equalizer and Cap touch operating system.
Cell counts
NC batteries:
NiMH batteries:
1 … 30 cells
1 … 30 cells
Lead-acid batteries: 1 … 6 cells
Lithium batteries:
Charge current:
1 … 12 cells
0,1 ... 10 A ((max. 210 W)
Discharge current 0.1 … 5 A (max. 50 W)
Adaptor lead for use with flight simulators
No. 8239
Skysport T4YF, T4EX, FF9,
T12Z, T14MZ, FX-40,FX-30
Accu monitor No. 8409
The robbe 8-LED Battery
Monitor is an accurate digital
Voltmeter to monitor of receiver batteries with 4.8 V or 6 V nominal voltage (4 or
5-cell
NC / NiMH battery).
Power
Peak B6 EQ-BID No. 8561
Inexpensive and compact 12V charge-discharge station with battery management for 1…14 cell NiCad/NiMH batteries,
1…6 cell LiIo, LiPo or LiFe batteries, as well as 2...12V leadacid batteries. With integral Equalizer and BID-system in high quality metal case. Including 230V AC/ 12V DC mains power supply, extensive accessories and alloy case.
S-BUS PWM Adapter SBD-1, 1 -> 3 No. F1695
Allow the fitting of the new S-BUS system to existing models and servos. Adapter for connecting 3 standard servos to the
S-BUS. Converts the signal for each output separately from
S-BUS to PWM .and the outputs may be assigned the same or different channel numbers. The outputs assignment is made either by PC or PC Link software or the handy, PC independed
S-BUS Programmer SBC-1.
Receiver battery charge lead
No. F 1416
T12FG transmitter battery charge lead
No. 8260
Power Peak TRIPLE EQ-BID No. 8541
Compact TRIPL3 charger-discharger with battery management for 3 x 1…14 cell NC/NIMH batteries, 3 x 1…6-cell LiIo,
LiPo or LiFe batteries as well as 3 x 2…12V lead batteries.
With 3 integrated equalizers and 3 BID systems.
S-BUS
Kanal Programmer SBC-1 No. F1696
Handy programmer to allocate the S-BUS channel numbers to
S-BUS servos or S-BUS PWM adapters
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Servo S 9070-SB
No. F1630
Fast and powerful universal digital servo with double ball-raced metalgear Low profile, only 23 mm high. Appropriated for the operation with 2 LiPo-cells.
The servo is connected via a separate adapter (CIU-2) to a USB interface on the PC for programming. Besides the normal adjustments like servo throw and end points, reversing and servo neutral as well as the acceleration and speed characteristics can also be adjusted. The new system is the perfect way to cater for coming developments. It is possible to assign the servo with an ID address and channel number for future applications
Servo S 9071-SB
No. F1626
The gearbox features twin ballraces, and an indirect drive system to couple the gearbox to the special potentiometer with
6-finger wiper. It is designed as a swash-plate servo for micro and mini helicopters, but suitable for small applications where power and speed is also needed at the same time.
Servo S 3171-SB
No. F1624
S-BUS nano-size digital servo with the sensational torque of
46 Ncm from a servo only 10.8 mm wide. The robust five-stage gearbox features four metal gears; two widely spaced ballraces support the output gear effectively against radial forces.
The robust five-stage gearbox features four metal gears; two widely spaced ball-races support the output gear highly effectively against radial forces.
Although designed for four-cell operation, the servo can also be used with a BEC circuit or, with up to 6 Volts with a 6-Volt limiter and a battery backer. An ideal wing-mounting servo, even for quite large gliders and competition machines, as well as mini and micro-helicopters. Programmable!
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FX-20
USB Adapter CIU 2
No. F1405
USB adapter for adjusting the servo, gyro and speed controller parameters via a PC. Suitable for Windows Vista / XP /
2000
SMM Gyro GY520
No. F1244
Ultra small and light AVCS heli gyro with the latest MEMS sensor technology.
Rx Capacitor 1800 uF
No. F1621
Minimises voltage breaks to the receiver. Which can lead to short breaks in power supply.
Capacitance 1800 uF
Rx Capacitor 22.000 uF
No. F1622
Minimises voltage breaks to the receiver. Which can lead to short breaks in power supply.
Capacitance 22,000 uF
Wireless Trainer System No. F1414
The WTR7 is a Wireless Trainer System designed for 2,4 GHz
FASST radios and replaces the Trainer Lead with a radio system. The Receiver is connected to the Trainer socket of the
Teacher transmitter, thereafter the 2,4 Ghz FASST Pupil transmitter is bound to it. Transmission is made in 7-channel mode set in the Teacher Tx. The range of the system is approximately
100m. A very convenient alternative solution that make the tiresome Trainer Cord a thing of the past. Also different FASST pupil Tx can be bound very quickly to it.
Spare Tx battery FX-20/ FX-30
No. 4846
LiPo battery with integral electronics to guard against deepdischarge and overcharging. With integral Equalizer function.
Aluminium Transmitter Case Futaba Aeroteam
No. 8899
Spacious aluminium case suitable for all current robbe-Futaba transmitters in transmitter tray and stick switches. Features printed robbe-Futaba AERO-TEAM logo. Universal internal layout with separate stickers for FF-8, FF-9, FF-10, T12FG,
FX-30, for the custom look.
FX-20 Service centre addresses
24. SERVICE CENTRE ADDRESS
Land Firma Strasse Stadt Telefon Fax E-Mail
Andorra Sorteney Santa Anna, 13 AND-00130 Les escaldes-Princip.D‘Andorre 00376-862 865
Dänemark Nordic Hobby A/S Bogensevej 13 DK-8940 Randers SV
Deutschland robbe-Service Metzloser Str. 38 D-36355 Grebenhain
England
Frankreich
Griechenland
Italien robbe-Schlüter UK
S.A.V Messe
LE10-UB
6, Rue Usson du Poitou, BP 12
TAG Models Hellas 18,Vriullon Str.
MC-Electronic
Niederlande/Belg. Jan van Mouwerik
GB-LE10 3DS Leicestershire
F-57730 Folschviller
Via del Progresso, 25
GR-14341 New Philadelfia/Athen
I-36010 Cavazzale di Monticello C.Otto (Vi)
Slot de Houvelaan 30 NL-3155 Maasland
Norwegen
Österreich
Schweden
Schweiz
Norwegian Modellers Box 2140 robbe-Service Puchgasse 1
N-3103 Toensberg
A-1220 Wien
Minicars Hobby A.B. Bergsbrunnagatan 18 S-75323 Uppsala robbe Futaba Service Baselstrasse 67 A CH-4203 Grellingen
Slowakische Rep. Ivo Marhoun
Spanien robbe-Service
Tschech. Rep.
Ivo Marhoun
Horova 9
Metzloser Str. 38
Horova 9
CZ-35201 AS
D-36355 Grebenhain
CZ-35201 AS
00376-825 476 [email protected]
0045-86-43 61 00
0049-6644-87-777
0044-1455-637151
0045-86-43 77 44 [email protected]
0049-6644-87-779 [email protected]
0044-1455-635151 [email protected]
0033 3 87 94 62 58 0033-3-87 94 62 58 [email protected]
0030-2-102584380 0030-2-102533533 [email protected]
0039 0444 945992
0031-10-59 13 594
0047-333 78 000
0043-1259-66-52
0046-186 06 571
0041-61-741 23 22
00420 351 120 162
0049-6644-87-777
00420 351 120 162
0039 0444 945991 [email protected]
0031-10-59 13 594 [email protected]
0047-333 78 001
0043-1258-11-79 [email protected]
0046-186 06 579 [email protected]
0041-61 741 23 34 [email protected]
0049-6644-87-779 [email protected]
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25. Disposal
Disposal of equipment: this symbol attached to an item of electrical and electronic equipment means that you are required to dispose of it separately from the general household waste when it reaches the end of its useful life. Take your unwanted equipment to your local specialist waste collection point or recycling centre. This applies to all countries of the European Union, and to other European countries with a separate waste collection system.
FX-20
Dear Customer, you have purchased a battery- operated product from us.
The battery lifetime is indeed very long, nevertheless, it will need disposal of at some point. Old batteries do not belong in the household rubbish. Users are legally required to deposit old batteries at suitable collection points. Old batteries have valuable raw materials that can be recycled. The environment and robbe say thank you!
The Rubbish means:
Batteries must not be disposed of in the Household
Waste.
The symbols below the Bin means:
Pb: Battery contains lead
Cd: Battery contains Cadmium
Hg: Battery contains Mercury
Note: (applies to Germany only)
•
•
On 1 October 1998 a new Battery Regulation came into force, which regulates the return and disposal of exhausted batteries. This regulation creates an obligation to return, recycle and dispose of all types of battery. We comply with this regulation by participating in the Common
Battery Return System (GRS - Batteries), which provides for the return and disposal of every type of battery. You, dear customer, can return your batteries to the following collection points for disposal at no charge to you.
• Communal collection points
Your dealer
Any battery retail outlet (regardless of where the battery was originally purchased) robbe Modellsport GmbH & Co.KG
Metzloser Strasse 38
D-36355 Grebenhain OT Metzlos-Gehaag
Telefono +49 (0) 6644 / 87-0 www.robbe.com
www.robbe.com/rsc robbe Form AHBA 40-5597
92
We accept no liability for errors and technical modifications.
Copyright robbe Modellsport 2010
This document may not be copied or reproduced in whole or in part without the prior written approval of robbe Modellsport GmbH & Co. KG

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