operating instructions
Contents
1.2. have got wet may not function properly even after thorough drying You should send them back to us for cleaning and testing Do not use speed controllers in conjunction with a power supply connected to the mains En ergy reversal can occur when the motor slows down and stops and this may damage the power supply or cause an over voltage condi tion which could damage the controller Never disconnect the flight pack while the mo tor is running as this could cause damage on a speed controller or a soft switch On no account connect a separate receiver bat tery or an electronic battery switch two re ceiver batteries as this may cause damage to the speed controller and could cause cur rent to flow from the receiver battery to the motor If you want to use a separate receiver battery cut through the wire in the receiver ca ble or pull it out of the connector if possible However for greater protection against motor inducted interference it is always better to use a speed controller with an opto coupler Vl vA smart series of micro processor controlled speed controllers Protect the speed controller or soft switch from mechanical loads vibration dirt and conta mination Keep the cables to the battery and to the motor as short as possible Never leave the flight battery connected when the model is not in use and or the battery pack is being charged Although some speed controllers feature a separate On O
3. If voltage continues to fall the controller switches off the motor entirely Of course you can re start the motor again briefly by moving the throttle stick back to stop for about 2 sec to re arm the sy stem The speed controller and your model aircraft remain fully controllable until the last drop of usable energy is exhausted We can not predict how long you can still con trol your model with the residual battery charge as this depends on many parameters such as the number of cells in the pack the cell type actual motor current and the way you control your model The only solution is for you to time the period yourself with the model on the ground If the voltage monitor trips i e the mo tor starts to throttle back without your interventi on you should stop the motor at once with the throttle stick in any case so that you have the maximum possible reserve of power Current monitor Our smart controllers feature a current monitor circuit which permits a high start up current and then gradually within 1 2 seconds reduces the threshold value to the maximum permissible continuous current If the motor is stalled the controller limits the current drain This means that a motor which draws an excessive current will never reach full throttle and the current schulze elektronik gmbh page 9 stays below the specified maximum value The LED then glows at about half maximum bright ness Receiver signal monito
4. cells 2A 10 cells 1 5A 12 cells peak current can only flow for less than 1 second followed by a cooling off period The maximum permissible continous current is much lower and is limited by the maximum power disspiation of the voltage regulator used No limiting circuits The maximum power dissipation is about 2 5W i e with a BEC voltage of 5 2V and a bat tery voltage of 9 6V difference 4 4V the maximum continous current is about 0 57A schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http www schulze elektronik com e mail mail schulze elektronik com smart series of micro processor controlled speed controllers for software V4 date of issue 02 OCT 1997 operating instructions 5 Protective circuits Note the monitor circuits are effective but they cannot detect every possible operating condition Temperature monitor The temperature monitor throttles back the mo tor in two stages before switching it off entirely You can reset the unit using the auto arm function throttle stick to stop for about 2 sec If the motor windings are short circui ted the temperature monitor reacts too N slowly to prevent damage Switch the motor off immediately to avoid perma nent damage to the speed controller Voltage monitor As soon as the voltage of the drive battery falls back to about half the no load voltage or the 5V threshold the motor is throttled back
5. flight battery c Switch transmitter on T Xon e smart confirms brake position with D d Switch receiver on and connect RXon a single beep and is now armed flight battery tion Keep clear of danger area with a double beep f Place the model in the launch posi e smart confirms full throttle position ay around propeller IN io collective pitch idl ition an position and leave it there for about ve DRE TICE postion ang f M hrottl ickl ini g Move throttle quickly to full throttle Sue S ae ee leave it there for about 1 2 second 1 2 second Motor is already run ning as with a conventional speed X controller X by interrupting the motor run very single beep and is now armed briefly a barely perceptible blip If the full throttle position is not con h The smart is completely configu firmed the smart cannot supply red full throttle because stick travel bet ween neutral point and full throttle i Place the helicopter in the take off point is too short If this happens position Keep well clear of danger set the servo travel for the throttle area around rotor Open throttle channel as high as possible e g gradually to start the flight 15096 the pulse width for the thrott Note to avoid the motor stopping le channel must be at least 1 95ms completely when collective pitch is reduced to minimum we recom i The smart is completely configured mend that you switch on idle up af and the model can be flown ter com
6. of radiated interference in model aircraft half of the receiver aerial s length should be routed along the fuselage the other half should be allowed to trail freely take care not to tread on it Do not attach the end of the aerial to the fin in model boats half of the receiver aerial s length should be deployed inside the hull above the waterline the other half should be threaded into a small tube moun ted upright Every time you intend to use the power sy stem before you turn on the receiver schulze elektronik gmbh page 3 make sure that NO one else is using the same frequency identical channel number your transmitter is switched on and the throttle stick is as a rule in the STOP posi tion exceptions see Section 9 Carry out a range check before each flight Ask an assistand to hold the model aircraft and set the throttle stick to the half throttle positi on full throttle if using a soft switch Col lapse the transmitter aerial Walk away from the model to the distance stated by the RC system manufacturer this might be a di stance of about 50 60 m 200 Make sure that you still have full control of the system at this range As a general rule receiver interference is more likely to occur when using a controller or governor with BEC system as these units do not feature an opto coupler with its opti cal link When Ni Cd batteries approach the end of their cha
7. the transmitter stick is at the brake position double beep full throttle position you must disconnect the controller and operate the servo reverse facility on your transmit ter otherwise the controller would arm itself single beep at the full throttle setting of your transmitter and would run at full throttle with the stick at the stopped position the exact opposite of what is required 9 2 1 Propeller brake mode 9 2 2 No brake mode a Receiver off and flight battery discon a Receiver off and flight battery discon nected nected b Setthrottle stick to brake position b Setthrottle stick to full throttle posi tion c Switch transmitter on TXon c Switch transmitter on TXon d Switch receiver on and connect RXon flight battery d Switch receiver on and connect RXon flight battery e smart confirms brake position with D a single beep and is now armed e smart confirms full throttle position JJ with a double beep Move throttle quickly to idle position and leave it there for about 1 2 se cond f Hold model in launch position keep clear of danger area around N f propeller g Move throttle quickly to full throttle position and leave it there for about 1 2 second Motor is already run ning as with a conventional speed g smart confirms idle position with a controller X single beep and is now armed h smart confirms full throttle position h The smart is completely configu by interrupting the motor run
8. 3 5 mm gold contact connector system pp35 max load gt 80A red plug wide sleeve narrow socket red e akku TUE CER D Battery smart em St _ black socket narrow sleeve wide plug black e akku Caution remove locating lug from battery cable Do not remove lug from any cables attached to controllers or charge leads Fit the connectors in the order shown above the contacts are pressed in as follows a Place plastic sleeve vertically on table grip end up b Push contact down into sleeve c Place 2 5mm wide screwdriver blade on top of cable solder joint inside sleeve d Tap screwdriver to press contact into sleeve until latch engages 7 2 4 mm gold contact connector system CT 4 max load gt 80A red sleeve wide plug Socket sleeve narrow red e akku B mart black sleeve narrow socket plug sleeve wide black 6 akku Fit the connectors in the order shown above the contacts are pressed in as follows a Rest plastic sleeve on vice jaws with cables hanging down b Close vice jaws until cables are just free to move c Fit plug into socket and tap into sleeve until latch engages d Fit socket onto plug and tap into sleeve until latch engages 7 3 MPX gold contact connector system green or red max load approx 30A red heat shrink socket plug heat shrink red e akku Battery i a smart black heat shrink socket heat shrink red amp akku Fit the connectors in the ord
9. BEC voltage 5 2V gives faster servo transit speeds smart 70be only Integral voltage converter produces an auxiliary voltage for the Power MOSFETs resulting in ultra low losses smart 75bo and 70be High 2kHz pulse frequency keeping the motor and controller cool and shielding the recei ver system from interference LED monitor Auto arm function and power on reset ips intelligent programming system with no pots The speed controller automatically confi gures itself to the stick travel when you switch your transmitter on The brake can also be disabled in the same way if required During the configuration process the motor acts as a loudspeaker to give you audible confirma tion of the procedure Coupling mm mQ mQ opto coupler opto coupler BEC 5 2V 2 5A peak opto coupler Current rating Maximum current nominal current All smart feature a current monitor circuit which permits a high start up current The maximum current limit will decrease gradually within 1 2 seconds to the nomi nal current value The nominal current value is the continous current at which the smart can be operated at full throttle when connected to a 10V 2Ah battery Weight excluding including cables Throttle brake Internal resistance of FETs as stated in the maker s data sheets Other features Overheating threshold approximately 110 C Pulse frequency 2 kHz BEC 5 2V peak current 3A with 6 Ni Cd cells 2 5A 8
10. controller current regulator with opto coupler designed for use in medium sized models with 10 to 24 Ni Cd cells smart 75bo a speed controller with opto coupler offering high maximum load a wide range of cells and impressively low interference and therefore suitable for any application smart 70be this controller is designed for use with 6 to 12 Ni Cd cells in models where it is necessary to save the weight of a seperate receiver battery The high capacity BEC circuit can cope with very high peak currents i e the smart can be used with 4 6 servos Highlights common to all units Ultra small ultra light units due to absence of cooling fins Better than 200 step resolution over the whole control range for extremely fine speed control 4 Technical data Type Strom Ni Cd Size unit A cells mm g smart A7bo 47 95 6 16 41x31 x 11 smart 52bo 52 105 10 24 41x31x11 smart 70be 70 140 6 12 52 x31 x 11 smart 75bo 75 150 6 32 52x31x11 Weight Cable Thrott Brake 21 55 25 33 10 21 55 25 27 8 33 65 4 0 25 33 33 65 4 0 2 5 3 VAVA 4 smart series of micro processor controlled speed controllers Variable low voltage threshold dependent on number of cells and load Avoids harmful deep discharge of cells which can result in polarity reversal Controllers work reliably and without causing in terference right down to the last usable scrap of battery energy our ultra high capacity BEC system max 3A with enhanced
11. eceiver batteries as this may cau se damage to the smart 70be and could cause cur rent to flow from the receiver battery to the motor If you want to use a separate receiver battery cut through the wire in the receiver cable or pull it out of the connec tor if possible However for greater protection against mo tor inducted interference it is always better to use a speed controller with an opto coupler t 1 motor r schulze elektronik gmbh page 7 9 Using for the first time 9 1 Symbols and terminology Stick The throttle stick on the transmitter 0 minimum stick usually pointing towards you 100 maximum stick pointing away from you Brake position or neutral position Idle position or position where the motor just barely runs Brake position or idle position Position of the throttle stick where the motor stops or just barely runs Full throttle position 10096 voltage passed to the motor speed controller mode maximum con figured motor rpm governor mode Audible indicators These indicators are only audible when a motor is attached as the mo tor itself acts as the loudspeaker Single beep D D Q Wait 0 5 seconds X Double beep Momentary interruption in running inverse beep schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http Awww schulze elektronik com e mail mail schulze elektronik co
12. er shown above the contacts are soldered as follows a To center the contacts fit plug and socket together before soldering b Tin all 6 exposed contacts of plug or socket c Fit cable end into triangle of contacts solder to all three contacts d Position heat shrink sleeve and shrink over joint 7 4 2 0 2 5 mm gold contact connector system max load approx 30A red Socket sleeve narrow sleeve wide plug red e akku Battery sma 0 a ct black socket sleeve narrow sleeve wide plug black 6 akku Fit the connectors in the order shown above the contacts are pressed in as described for the pp35 system schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http www schulze elektronik com e mail mail schulze elektronik com Vl vA smart series of micro processor controlled speed controllers smart series of micro processor controlled speed controllers for software V4 date of issue 02 OCT 1997 operating instructions 8 Installation connections Installing in the fuselage Velcro hoop and loop tape is the ideal method of mounting the controller in the fuselage Do not pack the smart in foam as this may lead to a heat buildt up in the controller Length of connecting cables The cables to the flight battery and in particular to the motor should be kept as short as possible Long cables tend to act as aerials and radiate interference they also add
13. ff switch this does not isolate it completely from the battery Note the limited capacity of the BEC system when used with a high number of cells in the flight pack see Specification Section 4 Speed controllers and soft switches can only function properly if they are in full working condition The protective and monitoring cir cuits can also only work if the speed control ler is in good operating condition In the case of motor failure e g short circuits in the windings the over tem perature sensor in the controllers may Zi react too slowly to prevent damage Switch the motor off immediately to prevent permanent damage to the speed controller If a transistor fails in the throttle stage neither a stop signal from the transmit ter nor the temperature monitor nor the current limiter will be able to throttle back or stop the motor Note Please remember that the monitoring cir cuits are unable to detect every abnormal operating condition such as a short bet ween the motor cables Note also that a stalled motor will only trip the current limiter if the motor s stall current is well above the controller s peak current For example if you are using an 80 A controller in con junction with a 20 A motor the current moni tor will not detect an excessive current even when the motor is stalled schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http www schu
14. ght to refuse repair to units which have been modified or improved by unauthorized experts As we mentioned earlier if you have a problem with one of our products please send it back to us or our authorized representative see cata logue This ensures that the proper replace ment parts will be used and that you will gain maximum pleasure from using these products You also have the comfort of a properly repai red unit with a renewed warranty The guaran tee period of repaired devices is applicable only to the repair This period is shorter than the guarantee period of a new product See our ge neral conditions of business 10 2 Liability damages We have invested a lot of effort in helping you to exploit this unit to maximum However since neither the manufacturer schulze nor the im porter have control over how these products are used we cannot accept liability for any direct or consequential damage loss and or injuries to the user to third parties or the environment page 1 0 Vi vA smart series of micro processor controlled speed controllers from the use of this product Taking into ac count our legal obligations and regardeless of the legal basis for any action our liability to compensate for damages shall be limited to the invoice amount of the portion of the merchan dise directly involved in the event which incur red the damages This does not apply in re spect of our unlimited liability due to wrongful
15. intend or gross negligence as prescribed by law 10 3 CE certification The products described in this manual are ma nufactured in accordance with all specific and mandatory European CE guidelines EMI 89 336 EEC 91 263 EEC and 92 31 EEC The products have been tested according to the following norms EMl emissions EN 50 081 1 1992 EMI resistance EN 50 082 1 1992 or EN 50 082 2 1995 The design and construction of our products comply with the requirements for safe operati on EMI emissions were tested under realistic con ditions i e using suitable motors close to the maximum allowed currents The use of resi stors instead of motors do not create maximum emission levels Further testing is carried out to ensure adequa te EMI resistance against emissions from other apparatus The RF signals used for these tests are similar to those produced by mobile tele phones and RC transmitters We wish to point out again that our products are tested under realistic conditions for the most dangerous scenario exposed to the field of a powerful transmitter the motor must not start while you are working on the model Problems involving our products are most likely caused by unsuitable combinations of radio components or improper installations schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http www schulze elektronik com e mail mail schulze elektronik com
16. l 9 Helicopter mode wo oe wa de ee hee eka Se oe Sem 9 Legal matters 3 22 doe a See sis dno Co ede e Oa eeu ade dod qe BE 10 Waranty mi i aeaii meti aeai aiei e a E a o a a aE 10 Limited liability damages lll 10 GE certification i a m gor Tuae Un Ord avd ard EUNE 8 Go EE OE Bo 10 schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http Awww schulze elektronik com e mail mail schulze elektronik com page 2 1 Warning notes cautions Electric motors fitted with propellers are dange rous and require proper care for safe operati on Keep well clear of the propeller at all times when the battery pack is connected Technical defects of an electrical or mechanical nature may result in unintended motor runs loose parts may cause serious personal in juriy and or property damage The CE certificate on the speed controller does not absolve you from taking proper care when handling the system Speed controllers and soft switches are exclusi vely for use in RC models Their use in man carrying aircraft is prohibited Speed controllers and softswitches are not pro tected against reverse polarity terminal and terminal reversed Connecting the battery pack to the motor leads of the con troller or soft switch will almost certainly cause irreparable damage Electronic equipment is sensitive to humidity Speed controllers and soft switches which
17. lze elektronik com e mail mail schulze elektronik com smart series of micro processor controlled speed controllers for software V4 date of issue 02 OCT 1997 operating instructions 2 Ensuring safe trouble free operation Use only compatible connectors A 2mm pin cannot provide reliable contact in a 2 5mm socket The same applies with 2mm gold contact pins and 2mm tin plated sockets Please also remember that the wiring of your RC components must be checked regularly for loose wires oxida tion or damaged insulation especially when using a BEC system your motor is suppressed by at least two better three ceramic capacitors of 10 to 100nF 63 to 100V Extra suppression can also be achieved using filters with coils the CE certificate on the speed controller does not absolve you from the need to handle the system carefully your receiver and the aerial must be at least 3 cm gt 1 away from motor speed controller and high current cables For ex ample the magnetic fields around the high current cables can cause interference to the receiver all high current cables must be as short as possible Maximum length between flight pack and speed controller should not ex ceed 20 cm 7 between speed controller and motor 5 cm 2 all high current cables longer than 5 cm 2 must be twisted together This applies in particular to the motor power cables which are very powerful sources
18. m page 8 9 2 ips the intelligent programming system for configuring the smart to suit your application The ips reflects the initial set up procedure used with our speed controllers until recently i e the process of adjusting the braking point with the help of a trim pot For any normal application with an EMF brake for a folding propeller the start up procedure is entirely conventional throttle stick to motor stopped switch first transmitter then receiver on hold model in lauch position apply full throttle launch The controller has to be adjusted to match the stick travel of your transmitter a procedure we term configuration and with these units the process is fully automatic If you wish to use the controller in a model which does not require a pro peller brake or in a model helicopter in which the full throttle setting of the motor does not coincide with the maximum collective pitch setting the procedure is slightly different see below The brake point and the full throttle point must be configured in such a way that full stick travel is always available to operate the motor as this provides the finest possi ble level of control If you have a transmitter with adjustable servo travel we recommend that you set throttle servo to normal full travel i e 100 A single beep always indicates that the controller is armed When you next move the throttle stick the motor will start running If the smart beeps twice when
19. pleting the configuration procedure outlined above The configured data is retained in the smart until you disconnect the flight pack or switch off the BEC system Note This position must not be the hover point it should be at least 3096 in the direction of maxi mum collective pitch For the technically minded throttle channel pulse width at least 1 65ms schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http Awww schulze elektronik com e mail mail schulze elektronik com 10 Legal matters 10 1 Warranty conditions All schulze products are 100 dynamically te sted by using a battery and a motor We do not simulate tests If your unit develops a problem please return it to schulze or to the importer Include a des cription of the problem Please be careful and precise and list the battery voltage and capaci ty motor type conditions under which failure occured etc A note saying doesn t work does not help us much and it may lead to waisted time in trouble shooting Before returning the unit for repair please test it one more time ca refully If we find that the controller is operating correctly whether it is under warranty or not we will make a charge for our lost time One final note Please don t try trouble shoot a defective unit yourself Very few hobby shops are equipped to analyze and repair surface mount printed circuit boards We reserve the ri
20. r If the receiver signal fails or the signal is longer or shorter than the usual range of values the smart controller reverts to hold mode for about 0 5 seconds before switching to disarmed mode Reverse polarity protection These speed controllers are not pro tected against reversed polarity Watchdog If this circuit is tripped the speed controller stops working briefly and then reverts to normal operation 6 Monitor displays Our smart controllers feature two LEDs 2 one Duo LED to help to understand the status of the unit at any time The meaning of the colou red lights is as follows 100 brake red full brightness flashing No load g amp r alternating flashing fast 1096 forward green 1096 brightness 9096 forward green 9096 brightness 10096 forward g amp r full brightness Function Note No load red green alternating flashing fast smart is armed throttle and brake off Waiting for arming red green alternating flashing slowly smart is disarmed always if full throttle is configured first Throttle stick to brake position activates smart Excess temperature red flashing together Wait until temperature falls Auto arm activates smart schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http Awww schulze elektronik com e mail mail schulze elektronik com page 6 7 Connector systems and mounting instructions 7 1
21. rge voltage falls drastically and quickly The smart detects this and reduces power to the motor automatically This should lea ve sufficient energy to bring your model safely back home However if you use a small number of cells of high internal resi stance and operate at high motor currents the controller may reduce power before the pack is discharged You can eliminate this problem by using low resistance straps to connect the cells or use the direct cell to cell soldering technique sticks and short heavy gauge wire if you assemble your own batteries Your receiver also benefits from the stability of the voltage supplied from the battery If the BEC voltage is stable the receiver is less liable to suffer interference If you are using a mechanical gyro Always disconnect the flight pack before turning off the receiver As the gyro runs down it may product sufficient voltage for the receiver to send an unwanted signal to the controller and this could cause the mo tor to burst into life schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http Awww schulze elektronik com e mail mail schulze elektronik com page 4 3 Intended applications Special features of individual controllers smart 47bo a speed controller current regulator with opto coupler designed for use in small to medium sized models with 6 to 16 Ni Cd cells smart 52bo a speed
22. smart series of micro processor controlled speed controllers operating instructions Chapter Oo co OO FWD 9 1 9 2 9 2 1 9 2 2 9 2 3 9 2 4 10 10 1 10 2 10 3 schulze for software V4 date of issue 02 OCT 1997 elektronik gmbh page 1 l i hulze LED 6 32NiCd Schulze gt m 41 i 5 Zellen E on back side of pcb Inenn 75A E Im x150A 0897 v22 Key to illustrations 1 Receiver cable 3 pin 2 Battery connection negative terminal black 3 Battery connection positive terminal red 4 Motor connection positive terminal red 5 Motor connection negative yellow Subject Page Warning notes cautions 2 Ensuring safe trouble free operation 3 Intended applications 4 Technical data s i iip x 330958 ee SG EO eS a ee URS 4 Protective circulls ss og ouo x E RU RO GS ee ee eG 5 Monitor displays o ook x ox ho sk ox 5 Connector systems and mounting instructions 6 Installing and connecting the unit 7 Using the controller for the first time 7 Symbols and terminology llle ln 7 ips the intelligent programming system aooo a 8 Normal operation propeller brake mode Ln 8 No brake m de 52 4 tee etre e psa sro ar Doct Se OR a Sa a Be 8 Use with self neutralising stick cs
23. unnecessary weight See also Section 2 Power connection battery lt gt smart It is essential to use polarized gold plated contact connectors fitting any other type of connector invali dates the warranty Connectors which are not fitted as standard with a polarized insulating sleeve can be effectively polari zed by soldering the positive battery lead attached to the smart to a socket and the negative battery lead attached to the smartto a plug Power connection smart lt gt motor Solder the blue or yellow and the red cable length max 5cm 2 directly to the motor terminals or shorten the existing motor cables The overall length of the connection after soldering should not exceed 5cm 2 If you prefer to have a plug in connection between smart and motor solder 2 sockets on the cable atta ched to the smart and 2 plugs on the cable attached to the motor Fit the connectors as described in Sec tion 7 1 vaut smart 2x socket BEEN 2x plug E D V tm Receiver connection Connect the receiver cable attached to the smart to the receiver servo output corresponding to the thrott le stick or a switch on the transmitter The smart 70be supplies the receiver with its opera ting voltage via this output socket For this reason check regularly that the receiver cable is undamaged and firmly seated at the smart On no account con nect a separate receiver battery or an electronic bat tery switch two r
24. very Ql red briefly a barely perceptible blip i Place the model in the launch posi i The smart is completely configu tion Keep clear of danger area red and the model can be flown around propeller Open throttle in the normal way to start the flight The configured data is retained in the smart until you disconnect the flight pack or switch off the BEC system schulze elektronik gmbh prenzlauer weg 6 D 64331 weiterstadt tel 06150 1306 5 fax 1306 99 internet http www schulze elektronik com e mail mail schulze elektronik com Vil vA smart series of micro processor controlled speed controllers smart series of micro processor controlled speed controllers schulze operating instructions for software V4 date of issue 02 OCT 1997 elektronik gmbh page 9 9 2 3 Propeller brake mode 9 2 4 Helicopter mode nobrake half stick travel a Receiver off and flight battery discon a Receiver off and flight battery discon nected nected b Setthe collective pitch stick to the b Settransmitter stick to neutral posi position in which the smart is requi tion brake position for the techni red to provide full throttle cally minded pulse width smaller It is important that you can always than 1 65ms call up this precise point for the start up procedure The best method is to c Switch transmitter on TXon assign the value to one switch positi on of a Dual Rate switch d Switch receiver on and connect RXon
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