USER MANUAL
Contents
1. sily fit in all ordinary receivers Make sure you connect it to receiver with correct polarity and use channel 2 Sensor Connector located underneath the solder tabs The bi directional multipole sensor wire connects the speed control and the motor Always use the sensor wire and do not alter or modify this cable Through this sensor connector the Comet can be upda ted with the latest software updates available at www Nosram cc using the optional USB Bridge 92501 MOT A Blue Power Capacitor Sensor Connector underneath solder tabs Power Wires For maximum performance flexible 3 3mm silicone power wires with no connectors are used The new splitted solder U tabs allow easy and con venient replacement of the power wires Avoid soldering longer then 5sec per soldering joint to prevent possible damage to the speed control due to overheating of the components Heatsink To achieve best perfomance even under ex treme conditions the heatsink has been directly mounted to the speed control This ensures the best possible heat transfer away from the speed control Fan Connector Plugged Fan 90970 only your speed control con tains a low profile cooling fan 30x30x6mm and moun ting crews The fan mounts on top of the heatsink and should be used for tough applications such as TC Modi fied or 4wd OffRoad As a guideline we recommend using the fan when using motors with 5 5T or lower with 2S LiPo batteries The f2. at which the Boost Timing becomes active below this RPM there is 0 boost timing R amp S Mode 6 Turbo Timing Important this mode is only visible if you select values 1 10 in Mode 4 if you selected 0 it will hop straight to Mode 7 Remark Wem 0 1 2 3 Turbo Timing i disabled 5 ee W0 applies an adjustable extra turbo timing on top of the Boost Timing when the set Boost Timing level has been reached e g ramp section has ended you apply 100 throttle on your radio Be aware that turbo timing will not engage if your motors RPM your gearing and the selected boost timing and boost angle do not match well So if your motor is too low RPM the selected boost angle to shallow the boost timing high the timing will never reach it s destination and the turbo timing will never activate ROL Mode 7 Cut Off Voltage 0 Cut Off Voltage IMI 2 use for disabled i il Motor Temp Cut Off 110 C 230 F when the battery voltage reaches the selected cut off voltage the motor function will be disabled and the LED s will indicate that the shutdown has occured due to undervoltage of your batteries Important Default setting is 2S LiPo so if you use other batteries you need to adjust this mode before first use Using value 0 in this mode will also disable the motor temperature cut off function entirely Repair Procedures Limited Warrant
3. gt 81 F 72 F 63 F 54 F 45 F 36 F 27 F 18 F 9 F down The crossed out wheeled bin means that within the European Union the product must be taken to seperate collection at the product end of life Do not dispose of these products as unsorted municipal waste Mode Programming The Comet features 7 modes which enable you to finetune it in detail to YOUR special requirements The factory settings are shown in grey colour gt Press MODE button for 3 or more seconds gt Count the number of flashes of the green SET LED value 1 value 2 etc How to get into Mode Programming e How to check the stored values How to change the value How to get to the next Mode How to leave the programming mode gt Press SET button to increase value by one step gt Press MODE button once gt If you are in MODE 7 press the MODE button one more time which will also store the settings Important do not turn the switch off before leaving Mode 7 by one more press of the MODE button as otherwise your recent changes won t be stored in the memory of the Comet Take your time to understand the different mode s and it s parameters profiles and functions Otherwise you will not fully benefit from the latest achievements built into this speed control Special Features further explanations Boost0 Racing the blue LED will flash in neutra
4. speed control is now ready to be set up USB Software Updateability Be aware that the Comet can only be updated with the latest USB Bridge Spec 2 92501 and is not supported by the older 92500 USB Bridge The new 92501 bridge does support all previous speed controls as well of course Through the sensor connector the speed control can be updated to the latest firmware available for download at www Nosram com The optional USB bridge and a computer are required to do so please refer to exact details in USB Bridge manual Thank you for your trust in Nosram products By purchasing an Nosram Comet Evo Nosram Comet HD brushless speed control you have chosen one of the most advanced speed controls of today This speed control with all of its high tech features and specially selected electronic components is one of the best speed controls currently available on the market IFMAR World Champion Technology e Pure Brushless Competition e Full aluminium case heatsink design e Perfect for Modified AND Stock Racing e Fully adjustable with 7 setting modes Bulletproof 6V 3A Linear BEC e 125 faster microcontroller e LowResistance PowerPCB with U soldertabs e USB Software Updateability Please read the following instructions carefully before you start using your speed control This user guide contains important notes for the safety the use and the maintenance of this product Thus protecting yourself and avoid damages of the product Proceed accord
5. turn it on the next time regularly which will reset the memory This feature allows you to accurately check if all is running well or if you re close to shutdown already Shutdown occurs at 10 flashes and you should not exceed 8 flashes during normal use for both motor and speed control temperature Please adjust your profiles gearing and motor accordingly so you stay within these safe limits Every flash below 10 equals to 5 C temperature decrease Caution motor temperature read out only works if motor has a built in NTC temperature sensor At your own risk if you wish to disable motor temperature cut off completely you can do so by using value 0 in Mode 7 We call this function Hardcore Racing Mode as it also disables the cell voltage cut off The speed controls thermal cut off system can not be disabled How to read out the temperature gt switch in OFF position keep MODE button pressed while you turn switch to ON then release button gt at first speed control temperature will be indicated e count the number of flashes of the green LED other LED s must be off gt to change to motor temperature read out press MODE button one more time e count the number of flashes of the green LED other LED s must be off Temperature chart e g How close to shutdown for speed control and motor 1 2 3 4 5 6 1 8 9 10 gt 45 C 40 C 35 C 30 C 25 C 20 c 15 C 10 C 5 C Shut
6. RAOOxxx Version 14 11 12 _USER MANUAL 0 Si ee ee O 90960 Comet Evo 90970 Comet HD Brushless Competition Modified Stock Profiles Linear BEC 6 0V 3 0A USB Software Updateability Firmware v1 4 for distributor address see packaging www nosram com Specifications 90960 90970 90960 90970 Rec Motor Limit 7 4V gt 9 5T gt 3 0T Plugged 30x30mm Fan optional yes Pure Brushless Competition yes LinearBEC 6 0V 3 0A Forward Brake yes Multi Mode Profile adjustment yes 7 Case Size BxLxH 32x34x21mm Boost 0 Mode yes Weight excl wires 38g 40g X Brake Pro yes Full aluminium case heatsink yes 3 Way Protection System yes Voltage Input 3 7 7 4V SmartTemp Readout System 2 yes Typ Voltage Drop 20A per phase 0 022V 0 011V Power Wires 3 3mm2 Rated Current per phase 200A 400A USB Software Updateability yes Compatible winding styles Star Specifications subject to change without notice User Interface As known from Nosram fast amp simple trackside adjustments are a must have and therefore we continue using our user interface using two buttons and several LED s which indicate you correct operation the mode s and settings you have selected etc A inside the LED symbolises a flashing LED MODE SET button amp LED button amp LED red blue yellow green Receiver Connecting Wire the Comet is equipped with an Nosram Multicon receiver wire As supplied it will ea
7. an get s plugged into the 3 pin con nector on the front On Off Switch Receiverwire Installation Guide Position the speed control where it is protected in the event of a crash and give you easy access to the connec tors and buttons Mount the speed control using the supplied thick black doubled sided tape Make sure there is enough clearance between the speed control power wires antenna and receiver Avoid any direct contact between power components the receiver or the antenna as this can cause interference If interference occurs position the components at a different place in the model The aerial should be run vertically up and away from the receiver Avoid contact with any parts made of carbon fibre or metal If the aerial is too long don t coil up the excess length See also the instructions supplied with your radio control system Connection to receiver motor and battery e Connect the speed control to the receiver position Channel 2 e Connect the speed control to the brushless motor A blue wire gt tomotor A e B yellow wire gt tomotor B_ e C orange wire gt tomotor C e hall sensor cable Doublecheck all connections before connecting the speed control to a battery Caution f battery is connected with reversed polarity it will destroy your speed control e Connect the speed control to your battery e red wire gt tobattery Plus e black wire gt to battery Minus The
8. ch and want the speed control to be turned on instantly once you connect it to a battery you must remove the switch and not connect the two wires which go to the switch On the other hand if you use 1S batteries and a receiver battery pack or BEC booster you should bridge the switch wires to leave the speed control in Off position Adaptive Brake Response newly revised X Brake Pro with sharper response and super linear feeling A good starting point for the brake setting on your radio is 80 for all classes Make sure you do the radio setup with all settings on the radio on 100 Changing Mode Settings without the Transmitter with FM radio s you simply disconnect the receiver lead from the receiver and change the MODE settings on the speed control as described under Mode Program ming With 2 4GHz radios you don t even need to unplug the receiver lead Works Default Settings All Nosram speed controls come factory adjusted defaults are grey shaded If you loose track of the modes you can restore the works default settings easily With your radio switched on hold the SET button pressed while you switch on the speed control This returns the unit to our works default settings Lower Motor Temperatures our further sophisticated software with improved commutation algorithm and the improved hardware result in further reduced motor operating temperatures Fading Compensation a special algorithm compensates the feeling that the car may act s
9. ds to be included Otherwise no warranty can be granted For quick repair and return service add your address and detailed description of the malfunction f NOSRAM no longer manufactures a returned defective product and we are unable to service it we shall provide you with a product that has at least the same value from one of the successor series he specifications like weight size and others should be seen as guide values Due to ongoing technical improve ments which are done in the interest of the product NOSRAM does not take any responsibility for the accuracy of these specs NOSRAM Distributor Service Package your product carefully and include sales receipt and detailed description of malfunction Send parcel to your national NOSRAM distributor Distributor repairs or exchanges the product Shipment back to you usually by COD cash on delivery but this is subject to your national NOSRAM distributor s general policy
10. g cut off voltage selected battery damaged motor too strong for battery discharge capability poor connection bad connector bad soldering joint too aggressive settings for timing modes too high gear ratio too low motor wind for application defective motor rotor does not spin drivetrain stuck sensor wire missing or defective Motor Thermal Shutdown Battery Low Voltage Cut Off Speed Control Thermal Shutdown Locked Rotor protection S Nalena RonsRon Sensor Wire Issue Active power reduction at critical temperatures in case you re getting near critical motor or speed control temperature the speed control will automatically switch to Boost0 mode during operation This function allows you to finish your run or at least reach the pitlane at slightly reduced speed Info the critical temperature at which this protection activates is 9 flashes You can easily indicate this has happened in case the blue LED flashes which means the speedo is in Boost0 mode after the run even tough you started with torque or boost timing enabled For your next run after swit ching off on your choosen profiles will be active again and not Boost0 SmartTemp Readout System 2 allows you to read out the maximum internal temperature that the speedo and motor have reached during the run You can convienently read out the temperature back in the pits since it remains stored until you
11. ing no motor function Speedo plugged in incorrectly Wiring problem Sensor wire missing defective Motor defective Speedo defective d Plug speedo to receiver as Ch 2 Pare Check wires and connectors instail repiace sensor wire Replace motor Send in product for repair No servo and no motor function Speedo connected to receiver with wrong polarity Speedo defective Connect speedo with correct polarity Send in product for repair Motor stutters while accelerating Sensor wire defective Power capacitor damaged Speedo defective Replace sensor wire w Replace power capacitor i Send in product for repair Motor runs in reverse when accelerating forward on radio Model with reversed gearbox Can not use a sensored brushless system Speed control switches off frequently Motor never stops runs at constant slow speed Wrong cut off voltage setting Mode 7 Model used too often without cool down periods i Motor stronger than motorlimit or input voltage rivetrai or ball bearing Motor defective i idity water ir in speedo Motor or sensor board in motor defective _ Change cut off voltage setting accordingly ar Let cool down after every run Use only motors and batteries which are within the speed control Replace motor d Repeat set up procedure r immediately unplug and dry speedo _ E voces Replace sensor board or motor Radio interfere
12. ing to the user guide in order to understand your speed control better Please take your time as you will have much more joy with your product if you know it exactly This user manual shall be kept in a safe place If another customer is using this product this manual has to be handed out together with it Calibrate Speed Control to Radio n setup mode the speed control stores every step e g learning your radios neutral and endpoints by pressing the SET button All the settings will be stored in the memory even if it will be disconnected from the battery TRANSMITTER SETTINGS Setup the following basic functions on your transmitter if available Throttle Travel __ High ATV EPA 100 Brake Travel Low ATV EPA ATL 100 Throttle Exponential EXP EXPO i startwith0 Nauta TO acct SUB Ue aae eontra a ce tne Servo Reverse Throttle Reverse any setting don t change after set up procedure If your transmitter doesn t offer any of above functions it s already in basic setup mode e Ensure that the speed control is not connected to the drive battery and is switched off Remove motor pinion or ensure that the wheels of the model are free to rotate e Switch the transmitter on and set the transmitter throttle stick to neutral e Connect the speed control to the battery and switch the unit on e Hold SET button pressed for at least 3sec Green SET LED will be on while you press SET butt
13. l trigger position to indicate that entire timing advancement is disabled for true stock racing as required by certain federations Boost0 is enabled when Mode3 4 are set to 0 value then Mode5 6 will not be visible Linear BEC a powerful linear 6V 3A output has been integrated which offers bulletproof stable voltage to the receiver servo Keep in mind that even the strongest BEC may suffer from a faulty servo or cooling fans so if you run into trouble with unstable voltage supply or unexpected receiver problems make sure that you also check the servo and fan s as it is known that certain digital servos draw excessive currents and cooling fans can get damaged 1S LiPo Usage the Comet can operate with lower input voltage then 7 4V but be aware that you need to run a receiver battery or RX booster when you re using a 1S LiPo or 4cell NiMH battery pack as it doesn t have a built in booster Connect a suitable receiver pack directly to the receiver and leave the switch in off position Make sure the receiver packs voltage is within your receivers amp servo s limitations On Off Switch unique design please read The switch operates as active low this means if you cut off the switch the speed control will always be turned on and not off The reason is that in case the switch gets damaged in a crash and fails you ll still be able to complete your run with no switch In case you d prefer running without the On Off swit
14. lightly different with fully charged batteries vs semi full batteries This algorithm takes that into account and compensates for that offset so the feeling should remain closely the same for the entire run Power Capacitor Never run without a power capacitor It is needed for protection and increases punch it must be connected to BAT and BAT solderpads with shortest possible wires Troubleshooting Guide To eliminate all other possibilities or improper handling first check all other components in your model and the trouble shooting guide before you send in this product for repair If products are sent in for repair which do operate perfectly we have to charge a service fee according to our pricelist Always check error by checking LED error code first this gives you a good indication were to search SYMPTOM Motor overheats Cc E False settings in timing modes Too high mechanical motor timing Too little motor cooling REMEDY Adjust settings of timing modes Decrease mechanical motor timing Add cooling fan and or heatsink Insufficient performance E g poor power topspeed or brake Wrong Gear ratio Transmitter settings changed after set up ee Power Capacitor damaged Motor or sensor board in motor defective y Speed control defective Adjust gear ratio Repeat set up procedure O Replace Power Capacitor Replace sensor board or motor _ Send in product for repair i Servo is work
15. nce Receiver or antenna too close to power wires motor battery or speedo Receiver aerial too short orcoiledup sh Receiver defective too sensitive Transmitter defective transmitter output power too low servo problem Poor battery connection Transmitter batteries empty See Installation Tips and Installation Replace components one by one Only use original manufacturers crystals Check plugs and connecting wires 000 Replace recharge transmitter batteries _ Mode Automatic Brake Remark Uni 3 4 5 6 7 Autobrake strength t e a Gb 20 25 allows you to set a slight braking action when your trigger is in neutral range amp Mode 2 Feel Initial Drive Remark Units 1 2 3 4 5 Initial Drive 3 5 7_ 3 9 12 also called minimum drive this is the level in where the speed controls initial throttle power will start in relation to your radios trigger position A higher value means more aggressive initial response Mode 3 Torque Timing Remark Wines 0 1 2 3 4 5 Torque Timing disabled 5 10 15 20 25 this function should only be enabled use of 5 25 of torque timing for Pure Pure2 motors all other motors should be used with 0 in this mode In combination with Pure Pure2 motors the Torque Timing will increase the motors torque and efficiency play with the
16. on and once it entered radio calibration both blue and green LED s will flash the green LED will continue flashing during entire setup procedure e Leave transmitter in neutral position and press the SET button once gt Neutral setting is stored MODE LED flashes yellow e Hold full throttle on transmitter and press SET button once gt Full throttle setting is stored MODE LED flashes red e Hold full brake on transmitter and press SET button once gt Full brake setting is stored LED s glow red MODE and green SET This completes the setup procedure and your Comet is ready to use If you make a mistake during the setup procedure don t worry Dis connect the battery for about 10sec and start again from the first step Forward For storage of the car disconnect the drive battery at any time Brake Neutral Neutral when Boost Zero enabled Partial throttle full throttle partial brake full brake 3 Way Protection System informs you about the cause of the shutdown by special LED flashing sequence the green SET LED will flash quickly to indicate there is an error and the MODE LED s will tell you the error code cause for shutdown Error Code LED flashing sequences Error Type Possible Reason 1 too aggressive settings for timing modes too high gear ratio too low motor wind for application too high mechanical motor timing battery empty or wron
17. values to find the best setting for your usage as it also affects drive feeling slightly Important enabled Torque Timing is not complying with Boost0 rules and blue LED will not flash in neutral SE Mode 4 Boost Timing GELES MS 0 1 2 3 4 5 6 7 8 9 10 Boost Timing disabled 5 10 153 20 23 0 35 40 45 50 adjusts the speed controls dynamic boost timing in degrees 5 increase for each step which is applied linearly to the motor based on it s RPM A higher number results in more overall power amp RPM but also higher temperature Important enabled Boost Timing is not complying with Boost0 rules and blue LED will not flash in neutral Mode 5 Boost Angle amp Activation Important this mode is only visible if you select values 1 10 in Mode 4 if you selected 0 it will hop straight to Mode 7 Remark i 2 3 4 1 8 9 10 Boost Angle k 02 04 06 08 1 5 30 35 4 0 Boost Trigger RPM 7600 5100 use for modified racing stock racing Boost Angle this number is given in degrees per 1000RPM so for each RPM increase of your motor the Come will increase it s dynamic boost timing linearly until the set Boost Timing level has been reached Higher numbe means more aggressive timing engagement as more timing is applied at lower RPM already a higher number wi also increase the motor temperatures Boost Trigger RPM
18. y All products from NOSRAM are manufactured according to the highest quality standards NOSRAM guarantees this product to be free from defects in materials or workmanship for 90 days non european countris only from the original date of purchase verified by sales receipt This limited warranty doesn t cover defects which are a result of misuse improper maintenance outside interference or mechanical damage This applies among other things on Cut off original power plug or not using reverse polarity protected plugs Receiver wire and or switch wire damaged Mechanical damage of the case Humidity Water inside the speed control Mechanical damage of electronical components PCB Soldered on the PCB except on solderpads Connected speed control with reversed polarity o eliminate all other possibilities or improper handling first check all other components in your model and the trouble shooting guide if available before you send in this product for repair If products are sent in for repair which do operate perfectly we have to charge a service fee according to our pricelist With sending in this product the customer has to advise NOSRAM if the product should be repaired in either case f there is neither a warranty nor guarantee claim the inspection of the product and the repairs if necessary in either case will be charged with a fee at the customers expense according to our price list A proof of purchase including date of purchase nee
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