Hobbywing XTREME STOCK ESC User Manual download pdf (Page 3)

USER MANUAL OF XTREME STOCK ESC HW-SM502ENG-20120817 Page 3 of 4

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.

Timing: The “timing” item is usable for both sensored and sensorless brushless motors. Please select the most

suitable timing value according to the motor you are just using. Generally, higher timing value brings out higher power

output, but the whole efficiency of the system will be slightly lower down.

2.10. Over-Heat Protection: If the function is activated, the output power will be cut-off when the temperature of the

ESC or the internal temperature of the sensored brushless motor is up to a factory-preset value for 5 seconds. When the

protection happens, the Green LED will flash.

 When the ESC is over-heat: The Green LED flashes as “☆-, ☆-, ☆-” (Single flash).

 When the motor is over-heat: The Green LED flashes as “☆-☆-, ☆-☆-, ☆-☆-” (Double flash).

Note: The motor over-heat protection function is only available for the sensored brushless motor made by the same

manufacturer of the ESC. For motors made by other manufacturers, this function maybe not available or the protection

point doesn’t match the design of the ESC, please disable the over-heat protection function in such a case.

2.11. Reserved item: With no function.

2.12. Turbo Timing: It is the additional timing that added to the Boosting Timing and only effective when the throttle is

fully opened, so usually it is useful for long straight track.

2.13. Boost Start RPM: ESC begins to increase the internal timing when motor speed reaches the Boost Start PRM. A

lower Boost Start RPM setting will produce a faster rate of boost because the ESC increases the internal timing earlier.

2.14. Turbo Delay: This is the time that must expire at fully opened throttle to engage turbo. If the fully opened time of

throttle is less than the setting value, the turbo will NOT be activated.

2.15. Timing Punch: This refers to the RPM increment that triggers the ESC timing increase of 1 Degree. A lower

Timing Punch setting will produce a faster acceleration and hotter temperature of the motor.

The different settings of Boost Start RPM and Timing Punch make different internal timing-change curves, which apply

different acceleration effect at the motor. We use END PRM to present the motor speed when the presetting timing is

fully applied at the motor.

END RPM = Boost Start RPM + (Boost Timing + Turbo Timing) * Timing Punch

Boost Start RPM

Timing Punch

Boost Timing

Turbo Timing

End RPM

Example #A

4500 RPM

200 RPM/°

12°

7°

8300 RPM

Example #B

6000 RPM

300 RPM/°

15°

4°

11700 RPM

Example #A: When motor speed reaches 4500RPM, the ESC begins to increase the internal timing with the step of 1

Degree per 200 RPM increment.

Example #B: When motor speed reaches 6000RPM, the ESC begins to increase the internal timing with the step of 1

Degree per 300 RPM increment.

Because Example #A uses lower Boost Start RPM and lower Timing Punch settings, it products a faster internal timing

increase, that means the motor has a faster acceleration, but the motor will be hotter.

SUMMARY

1. To get higher motor speed, please choose higher timing settings.

2. To get faster acceleration, please choose lower Boost Start RPM and lower Timing Punch settings.

3. To get lower motor temperature and long running time, please choose lower timing, higher Boost Start RPM and

higher Timing Punch settings.

SUGGESTED SETTINGS

The following settings are suitable for 1/10 scale on-road touring cars, and the motor has an initial mechanical timing

(also called: Endbell timing) of 0 to 5 Degree.

3. Reset All Items To Default Values

At any time when the throttle is located in neutral zone (except in the throttle calibration or parameters program process),

hold the “SET” key for over 3 seconds, the red LED and green LED will flash at the same time , which means each

programmable item has be reset to its default value.

【PROGRAM THE ESC】

1. Program the ESC with advanced LCD program box (Optional equipment )

Please refer to the user manual of LCD program box.

2. Program the ESC with the SET button on the ESC

Please refer to the instructions at the right side. (This function will be invalid when using the firmware with 15

programmable items)

Motor

Final Gear

Rate

＃9

Boost Timing

＃12

Turbo Timing

＃13

Boost Start

RPM

＃14

Turbo Delay

＃15

Timing Punch

11.5T

6.0-6.5

Option 6

Option 7

Option 5

13.5T

6.5-7.0

Option 8

Option 7

Option 3

Option 5

Option 2

17.5T

6.0-6.5

Option 8

Option 9

Option 1

Option 5

Option 1

1 2 3 4

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Hobbywing XTREME STOCK ESC User Manual Page 3

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