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1. This is intended to elucidate the textual description of the user interface es previously and should be studied in conjunction with that description Normal sormaz op ii E DLE i ixSchedule ee a 0 100 a Jesse EIN OME B setraiisaze G 0 100 NullO0ut Ls Jerogres Y Program 2 ESA rro He M2 PerServo restos pO A Ss Ultimix 5000 Om a oreset User Interface Map KEY C PostRev 0 1 Q O CAN One of Five Numerical Flash Cancel Menu Menu LED Button 10 Program Recording Sheet For your convenience the final page of this manual consists of three copies of a write in table covering all the elements of a complete Ultimix user program You can use it to record present values of any program which has taken a while to perfect for example in case you intend to experiment with the values and wish to record the previous settings or if you are sending your Ultimix back for upgrade and wish to record the program s You are welcome to photocopy this table as many times as you like or to download the Internet PDF version of this document from our web site and print out further copies 14 wicsenete Perl Jo rmeoue Offset rosno vso fr Prol mmeow Ofe 152. Update mode the Blue and Amber LEDs are lit to indicate that the Ultimix is searching for a download adaptor The Blue extinguishes when such an adaptor is found and downloading starts then after a few seconds Red or Green indicates whether or not the download was succesful If downloading starts but does not complete the Ultimix remembers this state and thereafter will always power up straight into Update mode until a successful download is performed in order to ensure that the Ultimix cannot be put into use with corrupted software If downloading was successful the next power up activates the new 11 software version This process is documented here for completeness only as Dawnmist Studio does not at present support end user downloads due to the cost of the download hardware Please note that this electronic update facility only exists on Version 2 00 and later of the Ultimix earlier versions can still be updated but this requires physical removal of the microprocessor chip from its socket for reprogramming The final special function Factory Reset may occasionally be of use to the user To access this mode hold down the Cancel and Enter buttons during power up When the buttons are subsequently released the unit wipes all of its program memories by copying the blank program into each memory in turn and leaving the current program selection unset this returns the unit to precisely the state in which it was delivered
3. When this has been done all five LEDs flicker rapidly as an acknowledgement and the unit then commences normal operation with a blank program Please note that performing a Factory Reset erases all previous contents of the unit s program memories and thereafter there is no way to retrieve the previous settings This is why this mode has been deliberately made difficult to select to prevent accidents If you wish to clear the current settings without erasing stored programs please refer to Select Blank Program in the programming instructions see Main Menu Blue option To erase only selected program memories select the blank program and then Store it in the chosen memory or memories see Main Menu Amber function 5 Upgrades UltiMix 5000 is designed to be upgradable Its on board operating software can be reprogrammed by Dawnmist Studio for a nominal handling cost keeping your investment up to date with the latest technical innovations and improvements Even new mixing schedules and whole new functional blocks can be added in software Dawnmist Studio is committed to continual product development and improvement We are always interested to hear customers feedback and suggestions for ways in which our products could be improved please let us know what features you would like to see in future versions of the UltiMix 5000 software The version number of the currently installed operating software will be found on the printed lab
4. another servo The upper limit of this parameter varies according to the version of software installed future releases of Ultimix with more mixing schedules will have a higher maximum Even though it can range higher than 9 it is treated as a single digit parameter as far as numerical menus are concerned for convenience of adjusting it up or down as well as for logical consistency with earlier software versions in which it could not exceed 9 10 4 2 4 The Recall Program Menu M3 Following a flicker of the Green LED to confirm Recall Mode this menu offers a One of Five selection of which of the five stored programs to recall When Enter is pressed the selected program is made current i e copied to the current program store where it can be modified if desired Another flicker of the Green LED confirms that the Recall is complete Recalling a program also causes the unit to remember the recalled program as the power on default 4 2 5 The Save Program Menu M4 Following a flicker of the Amber LED to confirm Save Mode this menu offers a One of Five selection of which of the five stored programs to overwrite with the current program When Enter is pressed the current program is copied to the selected program store overwriting any previous contents of the store Another flicker of the Amber LED confirms that the Save is complete Saving a program also causes the unit to remember the saved program as the power on default An
5. example will help to clarify things let us assume that we wish to create a modified version of Program 3 to make a new Program 4 Start by Recalling Program 3 and then alter parameters as required using the Parameters menus This will affect only the current program not the stored Program 3 When satisfied with the changes save the current program as Program 4 From now on Program 4 will be loaded as the power on default until another program is Recalled or Saved Any changes made to the current program but not Saved will be lost next time the power is turned off or if another program is Recalled so it is simple to undo any mistakes or unintended changes Section 10 provides a program recording sheet to enable you to note down the parameters of any programs which you wish to keep permanently for reference 4 3 Test and Special Modes There are three special functions of UltiMix 5000 that can be selected by holding down a combination of buttons as the unit is being powered up One of these is a Factory Test mode to help Dawnmist Studio to assure the quality of our products one is used for loading software upgrades and the other is a Factory Reset that erases all stored programs and settings restoring the unit to its as delivered state None of these functions need be used in normal circumstances Please note that to access these special functions the relevant buttons must be held down right throughout the start up procedure and then
6. out the flashing is stopped immediately and the button acted upon otherwise a button is awaited after flashing finishes As soon as any button is pressed the updated value of the number is flashed out unless the Enter button is pressed to accept the new value In numeric input mode the buttons have the following functions e Cancel Forces the numeric value to zero e Left For a parameter with a 0 100 range rather than a single digit this button increments the tens digit by one If the count is ninety something then pressing Left raises the number to 100 if the count is already 100 pressing Left wraps around to zero For single digit parameters Left instead decrements the units by one sticking at zero e Right For a parameter with a 0 100 range increments the units digit by one wrapping round from 9 to zero without incrementing the tens digit For single digit parameters the count sticks at maximum and does not wrap round e Enter Accepts the number currently displayed This procedure may seem a little complicated at first but with practice it becomes very simple to use A little experimentation is helpful to accustom yourself to the way the menu system works Remember that you can experiment freely with the current program without affecting any of the stored programs 4 2 The Menus 4 2 1 The Main Menu MO The first menu entered upon pressing Cancel to start up the user
7. Dawnmist Studio Updated copies of the manual may be downloaded from the Internet see above or obtained by post While the manual is written to reflect the current latest release of software it is intended also to cover as far as is possible the earlier versions This table describes the revision history of the software to enable users with older versions to be aware of which features their software lacks and to help you decide upon when or if to upgrade to the latest revision V2 30 10 Jul 09 Added mixing schedule 11 differential steering with centre motor in response to customer requests V2 20 24 Feb 05 Added support for differential steering mixing schedules 9 and 10 expanded and V2 10 28 Sep 04 Added output post mix reversal block previous versions had only the pre mix 2 00 01 Aug 04 Major new version adding mixing schedules 7 and 8 to support heading hold gyro applications and introducing electronic update facility for easy download of new software versions V1 10 24 Apr 04 Added offset and limit block for storing trim or offset data previous version lacked this and corresponding per servo program parameter V1 00 01 Apr 04 First release with five functional blocks reverse exponential mixing scaling failsafe and mixing schedules 0 6 13 9 User Interface Map The figure below shows a graphical representation of the various components of the user interface menus etc and how they fit together
8. Dawnmist UltiMix 5000 Instruction Manual Computer Radio Control System Upgrade and Mixer Revision 2 3 0 Software v 2 30 July 2009 Contents 1 Introduction 2 How It Works 21 The Vine Schedules q 20 5 Resco Rea A IS EA D 22 Connec ng UP A e da 2 Transmitter Setup E NT A NE ST NDA TENA RN 3 Normal Operation 4 Programming UltiMix 5000 4 1 The User Internac rs a ena a a donee Bn E NE E a ALT Cima Men s ti a RRA RA Aiea AS ee ee 4 12 Numere Menus iio A A AS a a ts Ga va IS Rd A O 8 ste ce AAs Len Bw ge avid a e a Wve th tA nah Bowe ee 4 2 1 Te Main Men M0 acessi 58 ha Bebe ls Ba Oey ble ei 4 2 2 The Per Program Parameters Menu M1 220 4 244 668 444 2b eee bes 4 2 3 The Per Servo Parameters Menu M2 0 20 00 ee eee 4 2 4 The Recall Program Menu M3 iS a 2S a 4 2 5 The Save Program Menu M4 esac wih ae wane nee a a 4 3 Test and Special Modes Esa RA AS ADAN REA EA 5 Upgrades 6 Technical Specifications 6 1 Exponential Values a Ds AI A A A hat 7 Warranty and Support 8 Revision History 9 User Interface Map 10 Program Recording Sheet 12 12 13 13 13 14 14 1 Introduction UltiMix 5000 adds full microcomputer functionality to a model aircraft or other model fitted with a simple conventional PPM R C system Unlike typical computer R C s which perform most of the processing at the transmitter UltiMix 5000 places the computer functionality in the model itself which
9. MHz RISC Approvals Meets relevant C specifications 12 6 1 Exponential Values For each possible value of the Exponential setting 0 8 this table shows the gain ratio ie the gain at full stick fully up or fully down relative to the gain at mid stick neutral Essentially 0 is linear 1 gives the mildest exponential effect while 8 gives the most pronounced exponential effect Opn 31251623 fe 1138143 paja pja 7 3 pa fee 7 7 Warranty and Support The UltiMix 5000 comes with a limited warranty against defects in parts and workmanship for a period of one year after purchase This does not cover damage caused by overload misuse impact or unauthorised modification and is limited to the repair or replacement of the defective unit Consequential losses of any sort are not covered and it is stressed that it is the purchaser s responsibility to ensure that this product is used safely and properly This does not affect your statutory rights Dawnmist products are engineered to a high standard and we want you to get the best out of them If you have any difficulties please email tech dawnmist org for fast response expert help Dawnmist Studio Exwick Exeter EX4 2LJ United Kingdom UK http www dawnmist org An online version of this document can be found at http www dawnmist org ultimix pdf 8 Revision History This document and the software to which it relates is carefully maintained and regularly updated by
10. altered whenever you like but still retains data indefinitely in the absence of power so the unit cannot forget its programming 2 1 The Mixing Schedules The unit s operating software at present provides a choice of 12 different mixing schedules which are listed here with their Schedule Numbers There are two parameters P1 and P2 associated with the mixing schedule though P2 is not used in Schedules 5 and 6 and neither parameter is used in Schedule 0 The schedule number and parameters chosen are stored as part of the user s program 0 No Mixing This schedule allows the UltiMix 5000 to be used in a standard airframe with the usual four control axes This allows the unit to be used to add scaling reversal exponentiation and failsafe to a standard aircraft configuration without performing any mixing In this schedule the mixer block in Fig 1 does nothing so the outputs a e are simply processed versions of the elevator aileron throttle rudder and auxiliary throttle optional respectively Hua CPM1 90 Swashplate This schedule performs a typical helicopter mixing operation P1 sets the relative contribution made to the collective pitch by the Throttle Collective and Elevator Aileron controls 50 giving equal weights while P2 sets the relative contribution made to the tail servo by Throttle Collective and Rudder controls again 50 gives equal weights Mathematically the transfer function of the mixer block is t
11. at Enter is pressed to select Blue These positions are held as the current program s failsafe positions and may be Saved along with the rest of the program Therefore it is necessary to have the transmitter switched on and sending a valid signal when this option is selected 4 2 3 The Per Servo Parameters Menu M2 Following a flicker of the Yellow LED to confirm M2 Mode this menu offers a One of Five selection of which servo s parameters to view change The menu options are as follows or Cancel can be pressed to exit to normal operation without changing anything Red Servo A Yellow Servo B Green Servo C Amber Servo D Blue Servo E When a servo is selected first of all the corresponding LED flickers to confirm the selection There is then a sequence of five numerical menu inputs for the servo as detailed below Upon completion the user interface goes back to M2 to allow another servo to be altered if desired use Cancel to escape 1 Flicker Yellow then view change input pre mix or stick Reverse parameter 0 1 0 for no reversal Flicker Green then view change Exponential parameter 0 8 0 for linear Flicker Red then view change Scale parameter 0 100 100 for no change Flicker Amber then view change Offset parameter 0 100 50 for no change a AeA WwW N Flicker Yellow then view change output post mix or servo Reverse parameter 0 1 0 for no reversal 6 Flicker Blue then return to M2 for
12. brings a number of technical advantages It is only recently that sufficiently powerful microprocessors to do this have become available and affordable the UltiMix 5000 uses the very latest technology to cram an entire high reliability real time microcomputer into a 17 gram package that is smaller than many R C receivers UltiMix 5000 is ideally suitable for helicopters as it provides mixing programs for both 90 and 120 swashplates as well as support for exotic aircraft configurations such as Vee Tail and Elevons delta wing and differential steering as used on tracked vehicles e g tanks and some water craft UltiMix 5000 is also designed to be upgradable Its on board operating software can be reprogrammed for a nominal handling cost by Dawnmist Studio keeping your investment up to date with the latest technical innovations and improvements INPUT OFFSET OUTPUT REVERSE EXPONENTIAL MIXING SCALING amp LIMIT REVERSE FAILSAFE SERVOS Ele Schedule i a Thr Y Oia C Rud 4 P1 0 100 Positions d P2 0 100 5 off e Fig 1 Block Diagram of UltiMix 5000 Operation 2 How It Works The UltiMix 5000 contains seven logical sub units as illustrated in Fig 1 and with the variable parameters shown You will see that there are five signal paths through the unit leading eventually to the five possible servo outputs a to e The fifth channel is an auxiliary throttle and its p
13. c to drive a non reversible ESC from the Aux Throttle channel while driving reversible ESCs from left and right channels If the range of outputs provided by the Aux Throttle function needs to be adjusted to match your ESC the Ultimix s Offset and possibly also Scale functions will be found helpful for example if the centre ESC does not start until the stick is well above centre a positive offset should be applied to the Aux Throttle channel Mathematically Elevator a unchanged Ailerons b unchanged Left Motor c P2 xThr 0 5xRud Right Motor d P2 xThr 0 5xRud Aux throttle e See Text UltiMix 5000 To main Receiver Battery Servos or BEC Fig 2a Connecting Up No Gyro Aux Servos UltiMix To main Receiver Battery Servos or BEC Orng Fig 2b Connecting Up With Rudder Gyro 2 2 Connecting Up Referring to Fig 2a b and also Fig 3 you will see that connecting the UltiMix 5000 into your R C system is simple the UltiMix has a ribbon cable ending in four 3 pin servo type plugs and these plug into the primary four channel outputs of the Rx colours as shown Please note that the plugs are non polarized so that they will suit any make of R C and therefore it is important to plug them in the right way round By looking at the Rx s battery socket you will see that the centre pin is positive
14. d decrease the rudder effect Mathematically Tailplane left a P1 x Ele 100 P1 Rud Ailerons b unchanged Throttle c unchanged Tailplane right d P1 x Ele 100 P1 xRud Aux throttle e unchanged AAA AAA Elevons A delta winged aeroplane typically uses two independently movable elevons to perform the functions normally provided by ailerons and elevators This mixing schedule combines the aileron and elevator signals in the appropriate way P1 sets the relative sensitivity to aileron and elevator commands 50 is equal In most cases equal sensitivity is usually appropriate but any desired weighting can be chosen higher values of P1 increase the elevator effect and decrease the aileron effect Mathematically Left elevon a P1 xEle 100 P1 x Ail Right elevon b P1 xEle 100 P1 x Ail Throttle c unchanged Rudder d unchanged Aux throttle e unchanged 7 HH CPM 90 Swashplate This schedule performs a variation of Schedule 1 without the tail mixing 10 11 function for use with heading hold gyros Since P2 is not needed for tail mixing it is instead used to allow direct adjustment of the relative sensitivity of the swashplate servos to aileron elevator P1 sets the effect of the throttle while P2 sets the effect of the elevator and ailerons Mathematically the transfer function of the mixer block is thus Swashplate rear a P1 xThr P2 x Ele Swashplate left b P1 xThr P2 xAil Swa
15. ear a P1 xThr 100 P1 xEle Swashplate left b P1 xThr 1 154x 100 P1 xAil 0 5x 100 P1 xEle Swashplate right c P1 xThr 1 154x 100 P1 x Ail 0 5 x 100 P1 x Ele Tail servo d P2 xThr 100 P2 x Rud Aux throttle e unchanged CCPM2 120 Swashplate Reverse Tail Very similar to Schedule 3 this simply reverses the effect of the Throttle Collective input on the tail servo without also reversing its effect on the swashplate servos This is the only reversal that cannot be covered by the Reverse blocks at the input and output see Fig 1 and is therefore provided as a separate schedule Mathematically Swashplate rear a P1 xThr 100 P1 xEle Swashplate left b P1 xThr 1 154x 100 P1 xAil 0 5x 100 P1 x Ele Swashplate right c P1 xThr 1 154x 100 P1 x Ail 0 5 x 100 P1 x Ele Tail servo d 100 P2 x Rud P2 x Thr Aux throttle e unchanged Vee Tail A Vee tailed aeroplane uses two independently movable diagonally slanted tailplanes to perform the functions normally provided by rudder and elevators This mixing schedule combines the rudder and elevator signals in the appropriate way P1 sets the relative sensitivity to rudder and elevator commands 50 is equal When the tailplanes are angled 45 from horizontal equal sensitivity is usually appropriate For other angles P1 should be adjusted to give the desired relative sensitivity higher numbers increase the elevator effect an
16. el on the underside of the unit Check out the Dawnmist web site for details of any available upgrades www dawnmist org rcm htm and any version specific information about upgrades To obtain an upgrade simply mail the UltiMix 5000 back to Dawnmist Studio with the appropriate upgrade fee see web site and your return address then we will do the rest Electronic updates which can be done to any Ultimix with software version 2 00 or later are inexpensive and are done by return of post Early units with Version 1 xx software can still be updated to the latest spec but this requires a chip change and takes a little longer Please be aware that the process of upgrading the software will clear all stored programs Therefore it is prudent to make a note of the parameters of any programs you wish to keep prior to returning the unit to us so that they can be re entered when the upgraded unit is returned to you 6 Technical Specifications Product Title Dawnmist UltiMix 5000 Software Version 2 30 July 2009 Dimensions 58x24x12 mm Weight 17 gram including cables connectors Power 4 5 6V at less than 25mA one LED on Inputs 4 channels from Rx and or Gyro Outputs 1 5 servos Program Memories 5 non volatile 1 temporary Memory type Non volatile FLASH memory Memory life 40 years typical Buttons Cancel Left Right Enter LEDs Daylight visible Red Yellow Green Amber and Blue Failsafe Fully configurable 5 channel Processor 20
17. eters to view change this affects only the Current Program of course The options are Red Mixing Schedule 0 11 Yellow Mixing Parameter P1 0 100 Green Mixing Parameter P2 0 100 Amber Time out Setting 0 100 Blue Set Failsafe Values The first four of these functions use a numerical menu to show adjust the relevant parameter as explained previously In all cases the selection is confirmed by a flicker of the appropriate LED and likewise final confirmation of pressing Enter causes the same LED to flicker again After performing any function within M1 the user interface returns to M1 again to allow other parameters to be altered To exit M1 press Cancel which returns to normal operation The meanings of the mixing parameters were described previously The Time out is expressed as a percentage of maximum 5 seconds e g a value of 20 gives a one second time out Zero means never time out if you require an instantaneous time out use 1 instead of zero If the time out is set to zero the unit always holds the last valid position after a signal loss and never goes to the stored failsafe positions The final Blue function of M1 is slightly different This is the set failsafe option and sets the failsafe positions of all five servos for the current program Instead of using some kind of menu input this option simply takes a snapshot of the servo positions being commanded by the Transmitter at the precise moment th
18. ew unit the blue LED does not flash at all and the blank program is selected by default As soon as the blue LED has flashed out the program number the unit enters normal operation In normal operation either the red or green LED is illuminated and no others green if the Rx is receiving a valid signal or red if not You can see the unit change state by switching the Tx on and off this will also demonstrate the failsafe function In normal operation the UltiMix 5000 simply obeys the selected program processing the input signals in accordance with Fig 1 and outputting them to the servos In the event of a glitch or signal loss the time out procedure begins the red LED lights instead of green and the unit initially holds the servos in their last valid position If a signal is not restored before the pre set Time out has expired the servos move to their programmed failsafe positions When a signal is finally restored the LEDs change back from red to green and the servos take up the transmitted positions The unit remains in normal operation at all times unless it is sent into Programming Mode by pressing the Cancel button Even while programs are being edited the unit still accepts inputs and produces outputs as defined by the current program settings but the red and green LEDs do not indicate status as they are used as part of the user interface for programming Thus the basic functions of UltiMix remain in operation all the t
19. hus Swashplate rear a P1 xThr 100 P1 xEle Swashplate left b P1 xThr 100 P1 x Ail Swashplate right c P1 xThr 100 P1 x Ail Tail servo d P2 xThr 100 P2 x Rud Aux throttle e unchanged 2 CPM2 90 Swashplate Reverse Tail Very similar to Schedule 1 this simply reverses the effect of the Throttle Collective input on the tail servo without also reversing its effect on the swashplate 3 servos This is the only reversal that cannot be covered by the Reverse blocks at the input and output see Fig 1 and is therefore provided as a separate schedule Mathematically Swashplate rear a P1 xThr 100 P1 xEle Swashplate left b P1 xThr 100 P1 x Ail Swashplate right c P1 xThr 100 P1 x Ail Tail servo d 100 P2 x Rud P2 x Thr Aux throttle e unchanged CCPM1 120 Swashplate This schedule performs helicopter mixing for equi spaced 120 swashplates P1 sets the relative contribution made to the collective pitch by the Throttle Collective and Elevator Aileron controls 50 giving equal weights while P2 sets the relative contribution made to the tail servo by Throttle Collective and Rudder controls again 50 gives equal weights Due to the 120 spacing of the servos the transfer function is rather complicated in order to keep the elevator aileron and collective functions from interacting Mathematically the transfer function of the mixer block is thus Swashplate r
20. iMix and the servo see Fig 2b A standard three conductor lead connects the gyro to the Rx in the usual way allowing the gyro to obtain its power from the Rx By connecting the gyro before the UltiMix the tail mixing function will not fight against the gyro s corrections Similarly if a gyro is fitted to another control function for example a few modellers use a gyro for aileron stabilization of an aeroplane then again the gyro s should be fitted between the Rx and the UltiMix 5000 in order to prevent any conflicts between the gyro corrections and the mixing functions As a final point if your R C has more than four channels then whatever auxiliary channels it uses are connected directly to servos rather than through the UltiMix again as shown in Fig 2a b This applies to auxiliary functions such as landing gear retracts which do not require processing via the UltiMix The physical layout of the UltiMix unit is shown in Fig 3 Studying this figure in conjunction with the mixing schedules above will help to identify which of the five servo outputs is which The figure also shows the locations of the buttons and LEDs that are used for setting up the unit Outputs a To b Servos c d e Negative usually black Positive usually red Data usually white LEDs R Red Y Yellow G Green A Amber Gi nie B Blue f T bis Buttons ain See X Cancel BO ey lt Left OOOO ee e sai Fig 3 Layout
21. ime 4 Programming UltiMix 5000 4 1 The User Interface Referring to Fig 3 you will see that there are four buttons designated Cancel Left Right and Enter and five coloured LEDs The software uses these resources to provide a powerful but easy to use scheme for setting up and programming the UltiMix 5000 To keep things simple the entire user interface is built around just two types of user interaction called respectively One of Five and Numeric menus To activate the user interface simply press and release Cancel The unit carries on operating normally upon the R C signals at all times but this action cancels the usual red green LED indication and invokes the user interface instead One special feature that is worthy of note is the one minute time out At any point in the user interface if no button is pressed for an entire minute the unit exits from whichever menu it is in and reverts to normal operation This makes it simple to recover from any confusion that might occur over which menu the unit is in After the time out has occurred another press on the Cancel button is required to re enter the user interface at the top level menu A graphical map of the user interface is given in Section 9 Referring to this alongside the descriptions given here should make the unit s operation clear 4 1 1 One of Five Menus In any One of Five menu one out of the five LEDs flashes The flash rate varies from menu
22. interface is the Main Menu or MO This is a One of Five menu that selects top level functions The table below shows which function corresponds to which LED and which sub menu is activated Red Inspect change per program parameters M1 Yellow Inspect change per servo parameters M2 Green Recall stored program M3 Amber Save current program M4 Blue Null out current program It will be seen that all of these functions invoke a lower level menu of some sort with the exception of the NULL function Blue The latter simply clears the current program to a do nothing setting that passes the input signals through unchanged flickering the Blue led for confirmation This can be a useful starting point for constructing your own programs Please note that NULLing the current program does not in itself affect any of the five stored programs The stored programs can only be altered with the SAVE command and the selection of which of these is loaded at power up can only be altered by either the SAVE or RECALL commands The mixing schedule number is treated as a single digit even though it can exceed 9 This is usually found to be more convenient than treating it as a multi digit number as it can thus be directly incremented or decremented using the Left and Right keys 4 2 2 The Per Program Parameters Menu M1 Following a flicker of the Red LED to confirm M1 Mode this menu offers a One of Five selection of which of the per program param
23. ir commanded positions To summarize then UltiMix 5000 can store up to five user programs using non volatile memory i e memory is retained even in the absence of power Each program consists of the following settings and their defaults in a blank program are as shown e Five input pre mix stick reversal settings one per servo These are Yes No settings default No e Five exponential settings one per servo These range from 0 linear to 8 strongest exponential Default is linear 0 The details of the exponential values can be found under Technical Specifications e An optional mixing schedule No mixing CPM1 CPM2 CCPM1 CCPM2 VeeTail Elevons HH CPM HH CCPM DiffSteering DiffSteering Elevons SpecialDiff and up to two mixing parameters 2 whose use is explained under each mixing schedule Default is no mixing both parameters default to 50 Five scale settings one per servo Each is 0 100 default 100 Five offset settings one per servo Each is 0 100 default 50 Five output post mix servo reversal settings one per servo These are Yes No settings default No e A stored snapshot of the failsafe servo positions one per servo Default central e A time out value for failsafe operation 0 5 seconds or Off Default 1 second The offset and limit function works as follows the offset parameter is expressed as a percentage of full travel such that servo cen
24. of UltiMix 5000 2 3 Transmitter Setup The UltiMix 5000 does not require any complicated transmitter Tx setup being designed to work with transmitters with minimal facilities Some more elaborate transmitters have some degree of adjustability most usually this is scaling adjustment of servo throw sometimes called ATV and reversal in addition to the basic trims that all transmitters have Scaling if provided should be turned off adjust the control for full throw operation as it can upset the exponential function of UltiMix Scaling can be done at the UltiMix instead where it takes place after any mixing functions which is the correct place for it Servo reversal can be selected at the Tx if desired but since the UltiMix 5000 also has a channel by chamnel reverse facility itis usually simpler to ignore the reversal switches at the Tx and perform any reversals needed at the UltiMix This is particularly true if you move your equipment between several models by keeping the Tx setup fixed and performing all the setup at the UltiMix with its automatic memories for up to 5 models a lot of confusion can be avoided 3 Normal Operation When first powered up the UltiMix 5000 first flashes all five of its LEDs then flashes out the number of the user program selected the last time it was operated this is flashed on the blue LED 1 to 5 flashes corresponding to Programs 1 to 5 If no program has ever been selected as in the case of a brand n
25. released after the initial LED flashing has finished To enter Factory Test mode hold down the Cancel and Left buttons during power up The unit will then remain in test mode until it is powered down Accessing this test mode does not affect any stored user programs in any way and the selected program is still obeyed as in normal operation The only difference is that the buttons do not perform their usual programming functions but instead access test functions The precise functions of Factory Test mode are not explained here as they are only of use to the unit s manufacturer The test mode is documented here for completeness only To enter Software Update mode hold down the Cancel and Right buttons during power up In this mode normal operation does not occur but instead the unit attempts to access an external computer and download a new version of its internal software This is made possible by the use of advanced Flash Memory in the microprocessor that powers the Ultimix which can be updated thousands of times Update mode is generally only used by Dawnmist Studio for installing upgrades If this mode is entered by accident simply switch off the unit and it will return to normal operation at next power up the software can only be changed by a complex interaction with an external system and cannot be corrupted by accidentally entering Update mode without a special external download adaptor connected to the Ultimix Upon entry to
26. s low a P2 value usually makes for steering which is over sensitive at high speeds On the other hand a P2 of 100 allows full speed ahead and limits the steering angle at high speeds Intermediate P2 values give intermediate results some experimentation will help you choose the best setting for your model Mathematically Elevator a unchanged Ailerons b unchanged Left Motor c P2 xThr 0 5xRud Right Motor d P2 xThr 0 5xRud Aux throttle e unchanged Differential Steering with Elevons Used for models which combine differential steering see Schedule 9 with Elevons see Schedule 6 this schedule is simply a combination of Schedules 6 and 9 Left elevon a P1 xEle 100 P1 xAil Right elevon b P1 x Ele 100 P1 x Ail Left Motor c P2 xThr 0 5xRud Right Motor d P2 xThr 0 5xRud Aux throttle e unchanged Differential Steering with Centre Engine This schedule is identical to schedule 9 except that it adds special processing to the Aux Throttle output to drive a forward only centre motor in conjunction 5 with reversible left and right motors This configuration is used on some boats The right and left channels should be set up with reference to schedule 9 while the Aux Throttle function has no parameters to adjust Its function is to map the upper half of the throttle stick s travel to the full range of the output and leave the output at minimum when the stick is below halfway This is the correct logi
27. shplate right c P1 xThr P2 xAil Rudder d unchanged Aux throttle e unchanged HH CCPM 120 Swashplate Similar to Schedule 7 but for 120 swashplates this schedule performs a variation of Schedule 3 without the tail mixing function for use with heading hold gyros Since P2 is not needed for tail mixing it is instead used to allow direct adjustment of the relative sensitivity of the swashplate servos to aileron elevator P1 sets the effect of the throttle while P2 sets the effect of the elevator and ailerons Mathematically the transfer function of the mixer block is thus Swashplate rear a P1 xThr P2 x Ele Swashplate left b P1 xThr 1 154xP2 xAil 0 5x P2 x Ele Swashplate right c P1 xThr 1 154xP2 x Ail 0 5x P2 x Ele Rudder d unchanged Aux throttle e unchanged Differential Steering Used for models which steer by means of two motors which run at different speeds in lieu of a rudder The classic example of this type of steering is of course tracked vehicles such as tanks though differential steering can be found on all sorts of craft This mixing schedule combines the throttle and rudder signals to derive left and right motor throttle signals P2 defines the action of the throttle relative to the rudder 50 gives true differential steering where the full range of steering angles is available at any speed but correspondingly the fastest dead ahead speed is limited to half throttle thi
28. to menu as a reminder of which menu you are in The flashing LED varies from leftmost red representing Option 1 to rightmost blue representing Option 5 You can move the selection left and right respectively by using the Left and Right buttons Pressing Cancel escapes right out of the user interface and reverts to normal operation without performing any menu selection Pressing Enter accepts the current selection and performs the chosen menu function 4 1 2 Numeric Menus Numeric menus are used when a numerical parameter is to be displayed and or amended Using the menu consists of displaying the current value of the parameter and then allowing the user to modify the value before re displaying it This display change sequence continues until Enter is pressed or until the one minute time out operates if no buttons are pressed All numeric parameters used in UltiMix 5000 lie within the range 0 100 and some are restricted to smaller ranges Numbers are indicated on the LED display by flashing out the tens on Amber then the units on Blue e g 54 will be shown as five flashes of Amber followed by four flashes of Blue with two exceptions for zero and 100 Zero is indicated by the Green Amber and Blue LEDs flashing once together otherwise there would be no flashes at all for zero and 100 is indicated by the Green LED flashing once as a hundreds column in effect If any button is pressed while the number is being flashed
29. tred is offset to the specified percentage of full travel thus 50 means no offset centred input gives centred output values less than 50 give negative offset values greater than 50 give positive offset After offsetting the servo travel is limited to legal values a range of slightly over 90 of servo rotation This provides a clipping effect which can sometimes be useful for example with the offset set to 0 negative offset of half travel the servo will not move off the end position until the processed stick value reaches almost half stick Offset is a relatively rarely used function if you don t need it simply leave the offset set to 50 and it will have no effect The commonest use of the offset facility is to store trim settings in the UltiMix rather than having to adjust the Tx trims when the R C is moved between different models In this application offset values are typically not far from 50 As well as the five non volatile program stores the unit has a current program store which is used to alter and experiment with programs before storing them in one of the five non volatile stores and also has a preset blank program which can be loaded as a starting point for creating your own programs Any existing program may also be recalled as a starting point for a new program All five stored programs as well as a record of which one is selected are stored in non volatile FLASH memory This memory can be
30. urpose will become clear when discussing collective pitch mixing CPM for helicopters The unit can store and recall up to five independent user programs where each program has its own user defined values for all these variables It can be seen that each signal path can be independently reversed before and or after the mixing process subjected to varying degrees of exponential from 0 linear to 8 sharpest exponential mixed in various ways scaled by between 0 100 offset by an arbitrary distance and limited to legal limits of travel and finally output to the servos subject to the unit s failsafe operation The failsafe is conceptually simple but very powerful in use for each program a specific failsafe set of servo positions is memorized along with a time out which can vary between zero and five seconds or can be set never to time out When the integrity of the incoming signal from the Rx is lost due to a glitch equipment failure interference etc the UltiMix initially holds its outputs at their last valid setting If the time out period expires before the signal returns the unit switches its outputs to the remembered failsafe settings Typically the time out is set to a second or two so that momentary glitches do not disturb the aircraft s flight path but guaranteeing that a failsafe position is rapidly adopted if the signal is lost As soon as a valid signal reappears the unit exits failsafe mode and the servos move to the
31. usually red and one of the side pins is negative usually black the remaining pin being unconnected on the battery pack this becomes the data out pin on a servo socket Plug the four plugs from the UltiMix in such that the three connectors with only one pin used are orientated so that the used pin corresponds to data out and not battery negative The remaining Elevator plug has all three pins implemented and this is inserted such 6 that the brown lead corresponds to battery negative and the orange lead to data out the UltiMix 5000 obtains its operating power via this connection Accidental reversal of the plugs is not likely to cause any damage but will prevent the system from working until the mistake is corrected In a similar way up to five main servos whose precise functions depend upon the mixing schedule selected are plugged in to the male connectors on the UltiMix 5000 These connectors are again unpolarized for compatibility with all manufacturers and are oriented such that the negative pin is towards the edge of the board and the data out pin towards the large black microchip visible on the board Please refer to Fig 3 to find your way around the UltiMix 5000 board this also shows which servo output is which Whena gyro is in use as in a helicopter rudder application the gyro should be connected inline between the Rx s Rudder output and the UltiMix 5000 s Rudder input rather than between the Ult
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