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USER MANUAL OF XTREME STOCK ESC HW-SM502ENG-20120817 Page 1 of 4

【DECLARATION】

Thanks for purchasing our Electronic Speed Controller (ESC). High power system for RC model can be very

dangerous, so please read this manual carefully. In that we have no control over the correct use, installation,

application, or maintenance of our products, no liability shall be assumed nor accepted for any damages, losses

or costs resulting from the use of the product. Any claims arising from the operating, failure of malfunctioning

etc. will be denied. We assume no liability for personal injury, consequential damages resulting from our

product or our workmanship. As far as is legally permitted, the obligation to compensation is limited to the

invoice amount of the affected product.

【FEATURES】

 Smart and small with metal shell.

 Drives sensored and sensorless brushless motors.

 Factory pre-installed supercharged STOCK competition firmware with Boost Timing and Turbo Timing function.

 Firmware updatable. Zero timing firmware is optional to be compliant with ROAR SPORTMAN rules.

 Compatible with all firmwares of XERUN-120A-SD and XERUN-60A-SD ESC.

 User programmable. Plenty of programmable items make the ESC be suitable for each racing.

 Easily programmed with the “SET” button on the ESC, and also compatible with the advanced professional LCD

Program Box.

 Multiple protection features: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection /

Motor blocked protection.

 Splash proof and dust proof.

【SPECIFICATIONS】

【BEGIN TO USE THE NEW ESC】

1. Connect the ESC, motor, receiver, battery and servo correctly.

a) Sensored brushless motor wiring

When using brushless motor with Hall

Sensor ， it is necessary to connect the

sensor cable to the “SENSOR” port on the

ESC, and ESC can automatically identify the

motor type (sensored or sensorless) by

detecting the signal coming from the

SENSOR port.

WARNING! For sensored brushless

motor, the #A, #B, #C wires of the ESC

MUST be connected with the motor wire

#A, #B, #C respectively. Do not change

the wires sequence optionally!

b) Sensorless brushless motor wiring

When using brushless motor without Hall Sensor,

the #A, #B, #C wires of the ESC can be

connected with the motor wires freely (without

any order). If the motor runs in the opposite direction, please swap any two wire connections.

Note: For SENSORLESS motor, you can also set the throttle channel of your transmitter to the “Reverse”

direction, and then the motor will run oppositely. And please calibrate the throttle range again after changing the

direction of throttle channel. Please keep in mind that this method is ONLY available for SENSORLESS motor.

2. Throttle Range Setting

(Throttle Range Calibration )

In order to make the ESC fit the throttle range, you must calibrate it when you begin to use a new ESC, or a new

transmitter, or change the settings such as the neutral position of the throttle stick, ATV or EPA parameters, etc.

Otherwise the ESC cannot work properly.

There are 3 points need to be set, they are the “Top point of forward”, the “Top point of backward” and the “Neutral point”.

The following pictures show how to set the throttle range with a Futaba

transmitter.

3. The LED Status In Normal Running

► Normally, if the throttle stick locates in the neutral range, neither the red LED nor the green LED lights.

► The red LED lights when the car is running forward or backward and it will flash quickly when the car is braking.

► The green LED lights when the throttle stick is moved to the top point of the forward zone.

【ALERT TONES】

1. Input voltage abnormal alert tone: The ESC begins to check the input voltage when power on, if the voltage is out of

the normal range, such an alert tone will be heard: “beep-beep-, beep-beep-, beep-beep-” (There is 1 second interval

between every “beep-beep-” tone).

2. Throttle signal abnormal alert tone: When the ESC can’t detect the normal throttle signal, such an alert tone will be

heard: “beep-, beep-, beep-” (There is 2 seconds interval between every “beep-” tone).

Model

XTREME STOCK ESC

Cont./ Burst Current

60A/380A

Suitable Motor

Sensored & Sensorless Brushless Motors

Suitable Car

1/10, 1/12 on-road & off-road cars for all STOCK racings

Suitable

Motor

4-6 cells NiMH or 2S Lipo

≥8.5T(1/10 on-road), ≥11.5T(1/10 off-road)

8-9 cells NiMH or 3S Lipo

≥13.5T(1/10 on-road), ≥17.5T(1/10 off-road)

NOTE: The pre-installed firmware has Boost Timing and Turbo Timing function, which makes the motor run at an extreme high speed.

You should NEVER speed up the throttle while the motor is empty loaded.

Please disable the Boost Timing and Turbo Timing when the ESC is used in an off-road car to avoid the damage to the chassis or the

gearing system.

Resistance

0.0006 ohm

Battery

4-9 cells NiMH or 2-3S Lipo

BEC Output

6V@2A Built-in BEC (Linear mode DC-DC regulator)

Dimension

33mm*28mm* 31.5mm (Cooling fan included)

Weight

46g (Neither cooling fan nor wires included)

Fan Working Voltage

5V@0.16A (The fan gets the power supply from the built-in BEC)

A) Switch off the ESC, turn on the

transmitter, set the direction of throttle

channel to ”REV”, set the throttle trim to

“0”, set the “EPA/ATV” value of throttle

channel to “100%”, and disable the

ABS function of your transmitter.

B) Use a pen or screw driver to hold the

“SET” key and then switch on the ESC,

and release the “SET” key as soon as

possible when the red LED begins to

flash.

(Refer to the picture on the right side)

C) Set the 3 points

according to the

pictures on the right

side.

► The neutral point

► The end point of

forward direction

► The end point of

backward direction

D) When the process of

calibration is finished,

the motor can be

started after 3

seconds.

Summary of content (4 pages)

PAGE 1
USER MANUAL OF XTREME STOCK ESC HW-SM502ENG-20120817 【DECLARATION】 Thanks for purchasing our Electronic Speed Controller (ESC). High power system for RC model can be very dangerous, so please read this manual carefully. In that we have no control over the correct use, installation, application, or maintenance of our products, no liability shall be assumed nor accepted for any damages, losses or costs resulting from the use of the product.
PAGE 2
USER MANUAL OF XTREME STOCK ESC HW-SM502ENG-20120817 【TROUBLE SHOOTING】 Trouble Possible Reason The optional firmware versions are as follows: Solution After power on, motor doesn’t work, no sound The connections of battery pack are Check the power connections, replace is emitted not correct connectors or switch The switch is damaged After power on, motor can't work, but emits “ Input voltage is abnormal, too high Check the voltage of the battery pack beep-beep-, beep-beep- ” alert tone.
PAGE 3
USER MANUAL OF XTREME STOCK ESC HW-SM502ENG-20120817 2.8. Throttle Neutral Range: Please refer to the following picture to adjust the neutral range as your like. 2.9. Boost Timing: It is effective throughout the entire throttle range and affects the motor speed in the entire track. Please note this refers to the maximum value of the ESC internal timing, the actual timing is always dynamically changed every moment according to the motor RPM.
PAGE 4
USER MANUAL OF XTREME STOCK ESC HW-SM502ENG-20120817 Note: ► In the program process, the motor will emit “Beep” tone at the same time when the LED is flashing. ► If the “N” is bigger than the number “5”, we use a long time flash and long “Beep---” tone to represent “5”, so it is easy to identify the items of the big number. For example, if the LED flashes as the following: “A long time flash + a short time flash” (Motor sounds “Beep---Beep”) = the No.