USER MANUAL
Contents
1. 01 Introduction Thank you for purchasing the XERUN XR8 PLUS HOBBYWING s high performance sensored brushless motor electronic speed controller Brushless power systems can be very dangerous Any improper use may cause personal injury and damage to the product and related devices We strongly recommend reading through this user manual before use Because we have no control over the use installation or maintenance of USER MANUAL Brushless Electronic Speed Controller XERUN XR8 Plus this product no liability may be assumed for any damage or losses resulting from the use of the product We do not assume responsibility for any losses caused by unauthorized modifications to our product e Ensure all wires and connections are well insulated before connecting the ESC to related devices as short circuit will damage your ESC e Ensure all devices are well connected in order to prevent poor connections that may cause your vehicle to lose control or other unpredictable issues like damage to the device Read through the manuals of all power devices and chassis and ensure the power configuration is rational before using this unit Please use a soldering iron with the power of at least 60W to solder all input output wires and connectors Do not hold the vehicle in the air and run it up to full throttle as rubber tires can expand to extreme size or even crack to cause serious injury e Stop using the ESC when its casing tempera2. the ESC sensor port and the motor sensor port with the stock 6 pin sensor cable Note 1 1 If you don t plug the sensor cable in your ESC will still work in sensorless mode even if you re using a sensored motor 2 After you install the motor if you find the car runs in reverse then please correct the motor rotation in the 6th programmable item B Sensorless Motor Wiring There is no polarity on the A B C wires between ESC and motor so do not worry about how you connect them initially You may find it necessary to swap two wires if the motor runs in reverse 2 Receiver Wiring Plug the throttle control cable also called Rx cable on the ESC into the throttle TH channel on receiver The red wire in the throttle control cable will output the BEC voltage of 6V 7 2V to the receiver and servo so please do not connect any additional battery to the receiver Otherwise your ESC may get damaged 3 External Capacitor Module also called CapPack Wiring This operation is Optional When using a 6S LiPo and either of the following vehicles you must connect an external cappack item sold separately Otherwise the insufficient capability of the built in cappack may cause the ESC to work abnormally or even get damaged 1 A vehicle with the total weight battery ESC motor servo and etc included exceeds 7kg such as CEG GST TEAM C TS8TE and etc 2 A vehicle with regular weight but its chassis is specially designed for running a super high speed over 10
3. time when the throttle stick trigger is at the neutral position Possible Causes 1 No power was supplied to the ESC 2 The ESC switch was damaged The battery voltage was beyond the normal operating voltage range of the ESC 1 The ESC didn t detect any throttle signal 2 The neutral throttle value stored on your ESC is different from the one stored on the transmitter Your chassis is different from popular chassis 1 The receiver was influenced by some foreign interference 2 The ESC entered the LVC protection 3 The ESC entered the thermal shutdown protection 1 Some soldering between the motor and the ESC was not so good 2 The ESC was damaged some MOSFETs were burnt 1 The throttle neutral position on your transmitter was actually in the braking zone 2 Set the Running Mode improperly 3 The ESC was damaged 1 The neutral position on the transmitter was not stable so signals were not stable either 2 The ESC calibration was not proper The programming cable with 2 JR male connectors was plugged into the wrong port at the ESC end 1 The ESC throttle cable wasn t plugged in the correct channel on the receiver 2 The ESC throttle cable was reversely plugged in When pairing with a sensored motor the ESC will automatically switch to sensorless mode from sensored mode when errors occur Solution s 1 Check if all ESC amp battery connectors have been well soldered or firmly connected
4. will be void even if you set it to any value besides 0 if the following Coast is not 0 12 Coast It allows the motor to gradually lower RPM when reducing the throttle from full or near full speed back to neutral The vehicle will not abruptly slow when the throttle is reduced to return to the neutral position The bigger the value the more the COAST will be felt Example COAST of 0 deactivates and a COAST of 20 would be the maximum amount of COAST What is COAST When a vehicle is operated with smaller pinions and larger spur gears the vehicle tends to create a feel of braking known as gear brake HOBBYWING COAST technology is to allow the car to roll coast as if the vehicle was geared with a larger pinion The Coast function brings better and smoother control feelings to racers Also some drivers will refer to this feel as how the traditional brushed motors felt they COASTED more because the armature with the wire on it was heavy and harder to stop spinning in the brushless motor the rotor being relatively light stops spinning more abruptly 13 Neutral Range Adjust the throttle neutral zone as per your preference as shown Because the neutral position on some transmitters is not stable and it can cause the vehicle to go forward backward slowly so please set the throttle neutral width to a bigger value when this issue happens 14 Drive Mode Option 1 Sensored Sensorless Hybrid The ESC drives the motor in senso
5. your vehicle only brakes won t reverse when the 1st time you push the throttle trigger forward away from you 1st push If the motor stops when you quickly release the throttle trigger and then re push the trigger quickly 2nd push the vehicle will reverse If the motor does not stop then your vehicle won t reverse but brake you need to push the throttle trigger one more time The vehicle only reverses after the motor stops This method is for preventing vehicle from being accidentally reversed 2 LiPo Cells We strongly recommend setting this item manually instead of using the default setting Auto Calculation which means calculating the LiPo cells automatically The ESC can identify 2S 4S and 6S LiPo packs when setting this item to Auto Calculation After you power on the ESC if the battery voltage is below 8 8V it will be identified as a 2S if the voltage is from 8 8V to 17 6V it will be identified as a 4S if the voltage is above 17 6V and it will be identified as a 6S Note 5 You need to set this item to Auto Calculation when you use a NiMH pack or a 5S LiPo AND customize the Low Voltage Cutoff threshold 3 Cutoff Voltage Sets the voltage at which the ESC lowers or removes power to the motor in order to protect the LiPo battery from irreversible damage caused by over discharge The ESC will monitor the battery voltage all the time it will immediately reduce the power to 50 and cut off the output 10 seconds la
6. 0km h like Traxxas XO 1 Note 2 For the above two kinds of vehicles we strongly recommend using HOBBYWING EZRUN MAX6 ESC instead because the MAX6 ESC has greater power output than XR8 External Cappack Wiring Diagram as shown on the right picture Connect a cappack to the ESC input end and ensure red positive to red positive black negative to black negative 4 Battery Wiring Proper polarity is essential here Make absolutely sure positive of ESC connects to positive of battery and negative of ESC connects to negative of battery when you plug in your battery If reverse polarity is applied to your ESC from the battery it will damage your ESC This will not be covered under warranty External Capacitor Module also called Cappack Wiring Those black backgroud and white text options are the factory default settings Basic Setting Option 1 Option 2 Option 3 Option4 Option5 Option6 Option 7 Option8 Option9 1 Running Mode Fwd Brk Fwd Rev Brk 2 LiPo Cells Auto Calculation 3S 4s 6S 3 Cutoff Voltage Disabled Customized 5 0 20V 4 ESC Thermal Protection 105C 221F 125 C 257 F Disabled 5 Motor Thermal Protection Disabled 105C 221F 125 C 257 F 6 Motor Rotate 7 BEC Voltage 8 Brake Force 37 5 62 5 75 0 87 5 100 Disabled Level 4 Level 6 Level 7 Level 8 Level 9 9 Reverse Force
7. 10 Start Mode Punch Level 1 Level 2 Level 3 Advanced Settings 11 Drag Brake 0 100 adjustable Default 0 12 Coast 0 20 adjustable Default 0 13 Neutral Range 6 9 Norma 12 14 Drive Mode eNSOreg SENSOne ona Full Sensored 15 Boost Timing 0 15 degrees adjustable default 0 degree 16 Turbo Timing 0 15 degrees adjustable default 0 degree 0 05s 0 1s 0 15s 0 2s 0 25s 0 3s 0 35s 0 4s Note 4 1 Fwd Forward Rev Reverse Brk Brake 2 The 14th 16th and 17th items are reserved items Most 4 pole motors on the market are suffering from the severe sensor interference now for these motors the full sensored mode can easily cause drive errors and further result in abnormal operation of the ESC and motor or even get them burnt so these functions have been temporarily shut down in the current version of ESC firmware HOBBYWING will release some new 4 pole motors that can ensure the ESC works in full sensored mode soon users can get access to those functions through firmware upgrade then 17 Turbo Delay 1 Running Mode Option 1 Forward with Brake The vehicle can go forward and brake but cannot reverse in this mode This mode is usually for racing Option 2 Forward Reverse with Brake This mode provides the braking function it s usually for training Forward Reverse with Brake mode adopted the DOUBLE CLICK method that is
8. 2 Replace the broken switch Check the battery voltage 1 Check if the throttle wire is reversely plugged in or in the wrong channel and if the transmitter is turned on 2 Re calibrate the throttle range after you release the throttle trigger to the neutral position Set the Motor Rotation to CW 1 Check all devices and try to find out all possible causes and check the transmitter s battery voltage 2 The RED LED keeps flashing indicating the LVC protection is activated please replace your pack 3 The GREEN LED keeps flashing indicating the thermal shutdown protection is activated please let your ESC cool down before using it again 1 Check all soldering points please re solder if necessary 2 Contact the distributor for repair or other customer services 1 Re calibrate the throttle neutral position No LED on the ESC will come on when the throttle trigger is at the neutral position Set the running mode to Forward Reverse with Brake Contact the distributor for repair or other customer services Replace your transmitter Re calibrate the throttle range or fine tune the neutral position on the transmitter N The programming port of this ESC is also the fan port so please unplug the fan and then plug the programming cable with 2 JR male connectors to the fan port 1 Plug the throttle cable into the throttle TH channel on your receiver 2 Plug in the throttle cable prope
9. 6 Turbo Timing Turbo Timing is adjustable from 0 degree to 15 degrees the corresponding turbo timing you set will initiate at full throttle It s usually activated on pretty long straightaway and makes the motor unleash its maximum potential 17 Turbo Delay Turbo delay is the time from the throttle stick trigger is moved to the full throttle position and keeps at that point to the moment Turbo Timing is really activated If you set this item to INSTANT then the Turbo Timing will be activated right after the throttle stick trigger is moved to the full throttle position If set it to any other values then you need to keep the throttle stick trigger at the full throttle position for a while as you set till the Turbo Timing initiates 3 Programmable Items Proportional brake with 9 levels of Maximum Brake Force and adjustable Drag Brake Force range from 0 to 100 e 9 levels of acceleration punch from soft to aggressive for different vehicles tires and tracks e Innovative COAST function will make the RC vehicle coast like a real car after you release the throttle trigger avoid the sudden slow down this sudden slow down often happens to motors with very strong magnetic force and brings you the great control feel e Multiple protections motor lock up protection low voltage cutoff protection thermal protection overload protection and fail safe throttle signal loss protection e Advanced programming via the portab
10. RED amp GREEN LEDs flash a short single flash that repeats vr x 7x at the same time indicating the drive mode has been automatically switched to sensorless mode from senored mode because of abnormal sensor signal when pairing the ESC with a sensored motor 08 trouble Shooting The ESC was unable to start the status LED the motor and the cooling fan after it was powered on The ESC was unable to start the motor after it was powered on but the motor beeped a short double beep that repeats with GREEN LED on the ESC blinked The interval between two beeps was 1 second After the ESC was powered on and finished LiPo detection the GREEN LED flashed N times and then the RED LED flashed rapidly The vehicle ran backward when you pulled the throttle trigger towards you The motor suddenly stopped or significantly reduced the output in operation The motor stuttered but couldn t start The vehicle could run forward and brake but could not reverse The car ran forward backward slowly when the throttle trigger was at the neutral position The LCD program box kept displaying CONNECTING ESC after you connected it to your ESC When pressing the SET button to set the throttle neutral position the GREEN LED didn t flash and no beep was emitted or you were unable to set the full throttle endpoint and the full brake endpoint after the neutral position was accepted GREEN amp RED LEDs flash rapidly at the same
11. SC Start with the ESC turned on press and hold the ON OFF button to turn off the ESC 2 Warning Tones Turn on the ESC in the normal way that is to turn it on without holding the SET button the motor will beep the number of LiPo cells you have plugged in For example 3 beeps indicate a 3S LiPo 4 beeps indicate a4S LiPo and 6 beeps indicate a 6S LiPo 9 Reverse Force Different reverse amount will bring different reversing speed For the safety of your vehicle we recommend using a low amount 10 Start Mode Punch You can choose the punch from level 1 very soft to level 9 very aggressive as per the track tires grip your preference and etc This feature is very useful for preventing tires from slipping in the starting up process In addition level 7 level 8 and level 9 have strict requirement on battery s discharge capability It may affect the starting up if the battery discharges poorly and cannot provide large current in a short time The car stutters or suddenly loses power in the starting up process indicating the battery s discharge capability is not good you need to reduce the punch or increase the FDR Final Drive Ratio 11 Drag Brake Drag brake is the braking power produced when releasing the throttle trigger to neutral zone This is to simulate the slight braking effect of a neutral brushed motor while coasting Attention Drag brake will consume much power so please apply it cautiously Note 7 The drag brake
12. ats x when the temperature gets up to the value you preset and activates the ESC thermal protection The output won t resume until the temperature gets down Warning Never set the ESC Overheat protection to DISABLED unless in some special situations like racing otherwise you may damage your ESC and even damage your motor 5 Motor Thermal Protection The motor will automatically cut off the output and the GREEN LED will flash a short double flash that repeats x x x Xz xx when the temperature gets up to the value you preset and activates the motor thermal protection The output won t resume until the temperature gets down Warning Never set the Motor Overheat Protection to DISABLED unless in some special situations like racing otherwise you may damage your ESC and even damage your motor For non HOBBYWING motor different thermal sensor may cause the ESC to trigger the Motor Thermal Protection early or later In this case please set the Motor Overheat Protection to DISABLED and check the motor temperature with an infrared thermometer or bare hand if you don t have the device but be careful all the time regularly 6 Motor Rotate Pull the throttle trigger with the motor shaft faces you the motor spins counter clockwise if this item is set to CCW the motor spins clockwise if it s set to CW In general the vehicle goes forward when the motor rotates counter clockwise However some chassis manufacturers design their products base o
13. ease the SET ON OFF button y button button once the LED ON Move the throttle trigger to the neutral position and press the SET button Move the throttle trigger to the end position of forward and press the SET button Move the throttle trigger to the end position of backward and press the SET button ys N x JE The Green LED flashes once and motor emits cit Beep tone Ui 3 Set the neutral point the full throttle endpoint and the full brake endpoint Leave the throttle trigger at the neutral position press the SET button the RED LED dies out and the GREEN LED flashes 1 time and the motor beeps 1 time to accept the neutral position e Pull the throttle trigger to the full throttle position press the SET button the GREEN LED blinks 2 times and the motor beeps 2 times to accept the full throttle endpoint e Push the throttle trigger to the full brake position press the SET button the GREEN LED blinks 3 times and the motor beeps 3 times to accept the full brake endpoint 4 The motor can be started 3 seconds after the ESC Radio calibration is complete The Green LED flashes twice and motor emits Beep Beep Cir Beep tone me twice and motor emits Beep Beep FE tone Lui law 2 Power ON OFF amp Warning Tones 2 Power ON OFF amp Warning Tones 1 Power ON OFF Start with the ESC turned off press the ON OFF button to turn on the E
14. ication between your ESC and the program box The CONNECTING ESC will be displayed a few seconds later the program box will display the current mode like profile 1 and then the 1st programmable item like Running Mode You can adjust the setting through ITEM amp VALUE buttons and then press the OK button to save new settings to your ESC 4 ESC Programming The programming port of this ESC is also the fan port so you need to unplug the fan first and then plug one end of the programming cable in the PRG FAN port and the other end of the programming cable in the ESC port on the LCD program box Please don t use the throttle control cable also called Rx cable on the ESC to connect the program box otherwise the program box won t function External Programming Port for Connecting Program Card e Restore the default values with the SET button 5 Factory Reset Press and hold the SET button for over 3 seconds anytime when the throttle trigger is at the neutral position except during the ESC calibration can factory reset your ESC RED amp GREEN LEDs flash simultaneously indicating you have successfully restored all the default values within your ESC Once you power the ESC off and then back on your settings will be back in the default mode e Restore the default values with a multifunction LCD program box After connecting the program box to the ESC continuously press the ITEM butto
15. le multifunction LCD program box Firmware upgrade via HOBBYWING multifunction LCD program box item sold separately 04 Specifications Cont Peak Current 150A 950A Motor Type Sensored Sensorless Brushless Motor Main Applications 1 8th Scale On road Buggy Truggy for High level Races AS LiPo 12S NiMH KV lt 3000 for 4274 size or smaller motor 6S LiPo 18S NiMH KV lt 2400 for 4274 size or smaller motor Motor Limit LiPo NiMH Cells 2 6S LiPo 6 18S NiMH BEC Output 6V 7 2V Switchable Continuous Current of 6A Switch mode BEC Cooling Fan Powered by the stable BEC output voltage of 6V 7 2V Connectors Input End No Output End No Size Weight 58 7 L x 48 W x 36 9 H 127g W O Wires Programming Port FAN PRG Port 05 Connections Yellow B Orange C Penn z Battery Receiver Sensor wire This is an extremely powerful brushless power system For your safety and the safety of those around you we strongly recommend removing the pinion gear before performing calibration and programming functions with this system and keeping wheels in the air when you turn on the ESC 1 Motor Wiring The sensored motor wiring is different from the sensorless motor wiring please make sure that you will strictly follow the introductions below A Sensored Motor Wiring There is strict wiring order from the ESC to the motor the three A B C ESC wires must connect to the three A B C motor wires correspondingly and then connect
16. n on the program box until you see the RESTORE DEFAULT item and then press OK to factory reset your ESC 07 Status of LEDs 1 During the Start up Process 1 The RED LED keeps flashing rapidly indicating the ESC doesn t detect any throttle signal or the neutral throttle value stored on your ESC may be different from the current value stored on the transmitter 2 The GREEN LED flashes N times indicating the number of LiPo cells you have connected to the ESC 2 In Operation 1 RED amp GREEN LEDs die out when the throttle trigger is in the throttle neutral zone 2 The RED LED turns on solid when your vehicle runs forward The GREEN LED will also come on when pulling the throttle trigger to the full 100 throttle endpoint 3 The RED LED turns on solid when you brake your vehicle the GREEN LED will also come on when pushing the throttle trigger to the full brake endpoint and setting the brake amount maximum brake force to 100 4 The RED LED turns on solid when you reverse your vehicle 3 Some Protection is Activated 1 The RED LED flashes a short single flash that repeats Yr x indicating the low voltage cutoff protection is activated 2 The GREEN LED flashes a short single flash that repeats Yx vx vv indicating the ESC thermal protection is activated 3 The GREEN LED flashes a short double flash that repeats sv vs vv indicating the motor thermal protection is activated 4 The
17. n the completely different theories so your vehicle may go backward when the motor spins counter clockwise In that case you need to set this item to CW instead 7 BEC Voltage Option 1 6 0V It s applicable to ordinary servos Do not use this option with high voltage servos otherwise your servos may not function normally due to insufficient voltage Option 2 7 2V It s applicable to high voltage servos Do not use this option with ordinary servos otherwise your servos may be burnt due to high voltage 8 Brake Force This ESC provides the proportional braking function the braking effect is decided by the position of the throttle trigger It sets what percentage of available braking power is applied with full brake Large amount will shorten the braking time but it may damage your pinion and spur Please select the most suitable brake amount as per your car condition and your preference Note 8 Turbo Timing and Turbo Delay only function when you set the Drive Mode to Full Sensored Program your ESC with a multifunction LCD program box You can program this XERUN XR8 PLUS through a multifunction LCD program box or a PC HOBBYWING USB LINK software needs to be installed on the PC Before the programming you need to connect your ESC and the LCD program box through a cable with two JR male connectors and turn on the ESC then the boot screen will show up on the LCD press any button on the program box to initiate the commun
18. of throttle channel on your transmitter otherwise the ESC cannot work properly We strongly recommend activating the Fail Save function of the radio system and set it F S to Output OFF or set its value to the Neutral Position to ensure the motor can be stopped when there is no signal received from the transmitter About setting the throttle range let s take Futaba transmitter as an example 1 Turn on the transmitter set parameters on the throttle channel like D R EPA and ATL to 100 for transmitter without LCD please turn the knob to the maximum and the throttle TRIM to 0 for transmitter without LCD please turn the corresponding knob to the neutral position For FutabaTM radio transmitter the direction of throttle channel shall be set to REV while other radio systems shall be set to NOR Please ensure the ABS braking function of your transmitter must be DISABLED 2 Start with transmitter on and the ESC turned off but connected to a battery Holding the SET button and press the ON OFF button to turn on the ESC the RED LED on the ESC starts to flash Note 2 the motor beeps at the same time and then release the SET button immediately The ESC will enter the programming mode if the SET button is not released in 3 seconds then you need to restart from step 1 Note 3 Beeps from the motor may be low sometimes and you can check the LED status instead Hold the SET Press the Rel
19. red mode during the low speed start up process after that the ESC will switch to driving the motor in sensorless mode Option 2 Full Sensored You can select this option only when using a HOBBYWING matching motor that means HOBBYWING new 1 8th motor without Hall sensor interference the control feeling will be better the efficiency of the power system will be higher and the turbo timing of the ESC can be activated to get the maximum burst power Warning 1 Do not select this option if you use a non HOBBYWING matching motor especially when it s a 4 pole sensored motor otherwise you may damage the ESC and the motor 2 If you select this option but you forget to plug the motor sensor cable in or you connect your ESC to a sensorless motor then the ESC will be unable to drive the motor 15 Boost Timing Boost Timing is adjustable from O degree to 15 degrees it has three effects 1 Compatible with different motors Some motors may function abnormally with the default Boost Timing 0 you need to adjust the timing to a proper degree and then they will work fine 2 Fine tune the maximum RPM of the motor through adjusting this Boost Timing The bigger the timing the higher the RPM and the more electric energy it will consume 3 Make the motor operate at the optimum efficiency point through adjusting this Timing Attention After you adjust the Timing you need to check the actual effect first and then decide if it s necessary to make the adjustment 1
20. rly by referring to relevant mark shown on your receiver 1 Check if the sensor cable is loose or poor contact exists 2 The Hall sensor inside the motor is damaged
21. ter when the voltage goes below the cutoff threshold The RED LED will flash a short single flash that repeats yx yx yx to indicate the low voltage cutoff protection is activated If you use a NiMH pack then please set the Cutoff Voltage to Disabled Option 1 Disabled The ESC won t cut off the power due to low voltage after you select this option We do not recommend using this option when you use any LiPo battery otherwise you will irreversibly damage it However for avoiding losing power in racing due to low voltage we recommend using this option this still may cause damage to your battery pack You need to select this option when you use a NiMH pack Option 2 Auto The ESC will automatically calculate the corresponding cutoff voltage as per the number of LiPo cells it detects and the 3 1V cell rule For example if the ESC detects a 4S Lipo then the cutoff voltage for the battery shall be 3 1x4 12 4V Option 3 Customized The customized cutoff threshold is a voltage for the whole battery pack adjustable from 5 0V to 20V Please calculate the value as per the number of LiPo cells you are using For example when you use a 4S and you want the cutoff voltage for each cell is 3V then you need to set this item to 12V Note 6 please set this item to CUSTOMIZED when you use a 5S LiPo 4 ESC Thermal Protection The ESC will automatically cut off the output and the GREEN LED will flash a short single flash that repe
22. ture exceeds 90 C 194 F otherwise the ESC may get destroyed and may also get your motor damaged We recommend setting the ESC Thermal Protection to 105 C 221 F this refers to the internal temperature of the ESC e Always disconnect and remove batteries after use as the ESC will continue to consume current if it s still connected to batteries even if the ESC is turned off Long time contact will cause batteries to completely discharge and result in damage to batteries or and ESC This will not be covered under warranty 03 Features e Compatible with sensored sensorless brushless motors In sensored mode it s compatible with most popular sensored brushless motors on the market In sensorless mode it s compatible with 99 of brushless motors on the market e Super internal switch mode BEC with switchable voltage of 6V 7 2V and cont peak current of 6A 15A for easily driving big torque servos and high voltage servos e Highly reliable electronic switch avoids troubles which may happen to traditional mechanical switch due to dirt water dash and etc e Aluminum cases build highly efficient heat dissipation system e Separate programming port to easily connect the LCD program box to the ESC 06 ESC Setup 1 ESC Radio Calibration In order to make the ESC match the throttle range you must calibrate it when you begin to use a new ESC or a new transmitter or after you change the settings such as the TRIM D R EPA and other parameters
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