Hobbywing XERUN SCT PRO User Manual

USER MANUAL OF XERUN-SCT PRO ESC VER: HW-SM507ENG-20121102 Page 1 of 3

Model

XERUN-SCT PRO

Cont./Burst Current

120A / 760A

Suitable Motor

Sensorless brushless motors

Suitable Car

1/10th and 1/8th scale Truggy / Buggy

( Includes TRAXXAS 1/10th scale Truggy and buggy)

Motor Turns

2S Lipo : KV≤6000 3S Lipo : KV≤4000 4S Lipo : KV≤3000

Resistance

0.0004 ohm

Battery

6-12 cells Ni-xx (NiMH or NiCd)

2-4S Li-Po

BEC Output Note 1

6V/3A (Switching mode built-in BEC)

Dimension

53.5(L) × 36(W) × 36(H)

Weight

99g

A) Switch off the ESC, turn on the transmitter,

set the direction of throttle channel to ”REV”, set the “EPA/ATV” value of throttle channel to “100%”, and disable the ABS function of your transmitter.

B) 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.

(Note2 )

C) Set the 3 points according to

the steps shown in the pictures on the right side.

1) The neutral point Move the throttle stick at the neutral point, and then click the SET key, the green LED flashes 1 time.

2) The end point of forward

direction

Move the throttle stick at the end point of forward direction, and then click the SET key, the green LED flashes 2 times.

3) The end point of backward

direction

Move the throttle stick at the end point of backward direction, and then click the SET key, the green LED flashes 3 times.

D) Throttle range is calibrated;

motor can be started after 3 seconds.

【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】

 Suitable for 1/10th and 1/8

scale short course trucks and 1/8th scale buggies.

 Compatible with sensored and sensorless brushless motors, with the best control feelings.  The built-in switching mode BEC has a powerful output to supply all electronic equipments even with 4S Lipo input.  Excellent start-up, acceleration and linearity.  Proportional ABS brake function with 5 steps of maximum brake force adjustment, 8 steps of drag-brake force

adjustment and 4 steps of initial brake force adjustment. Also compatible with the mechanical disc-brake system.

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

Motor blocked protection

 Easily programmed with only one button and compatible with pocket-sized Program Card (Optional equipment) and

the advanced LCD Program Box (Optional equipment).

 ESC firmware can be updated through an USB adapter on the LCD Program Box (Optional equipment).  Splash proof and dust proof.

【SPECIFICATIONS】

If 2 battery packs are connected in series, please take the wiring picture at the right side as reference.

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 of neutral position of the throttle stick, ATV or EPA parameters, etc. Otherwise the ESC cannot work properly. The following pictures show how to set the throttle range with a FutabaTM transmitter.

NOTE1 : The cooling fans of ESC is supplied by the built-in BEC, so it is always working under 6V .

【BEGIN TO USE THE NEW ESC】 WARNING! THIS BRUSHLESS SYSTEM IS VERY POWERFUL! FOR SAFETY, PLEASE ALWAYS KEEP THE

WHEELS AWAY FROM THE TRACK WHEN YOU BEGIN TO SWITCH ON THE ESC.

A) Sensored brushless motor wiring

When using brushless motor with Hall Sensor， please connect the motor and the ESC with a sensor cable.

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

Note2: If you don’t release the “SET” key as soon as the red LED begins to flash, the ESC will enter the program mode,

in such a case, please switch off the ESC and re-calibrate the throttle range again from step A to step D.

3. Check The LED Status In Normal Running

► Normally, if the throttle stick is located 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.

4. Check The Lipo Cells Setting If You Are Using Lithium Battery

If you are using Lipo battery, we strongly suggest setting the programmable item # 12 --- “Lipo Cells” manually to avoid the over-discharge problem. Please read the instructions on page 2. In normal case, when the ESC is switched on, the motor will emit several “Beep” tones to express the cells amount of the battery pack. For example, “Beep-Beep-” means 2S Lipo, “Beep-Beep-Beep-” means 3S Lipo, etc.

USER MANUAL OF XERUN-SCT PRO ESC VER: HW-SM507ENG-20121102 Page 2 of 3

1 2 3 4 5 6 7 8 9

1. Running Mode

Forward

with Brake

Forward/Reverse

with Brake

Forward and

Reverse

2.Drag Brake Force 0% 5% 10% 20% 40% 60% 80% 100%

3.Low Voltage Cut-Off Threshold

Non-Protection 2.6V/Cell 2.8V/Cell

3.0V /Cell

3.2V /Cell

3.4V /Cell

4.Start Mode(Punch) Level1 Level2 Level3 Level4 Level5 Level6 Level7 Level8 Level9

Programmable

Items

Basic Items

Programmable Value

1 2 3 4 5 6 7 8 9

5.Max Brake Force 25% 50% 75% 100% Disable

6.Max Reverse Force 25% 50% 75% 100%

7.Initial Brake Force

= Drag Brake

Force

0% 20% 40%

8.Neutral Range 6% (Narrow) 9% (Normal) 12% (Wide)

9.Timing 0.00 ° 3.75 ° 7.50 ° 11.25 ° 15.00 ° 18.75 ° 22.50° 26.25°

10.Over-heat Protection Enable

11.Motor Rotation

Counter

Clockwise

12.Lipo Cells Auto Calculate 2 Cells 3 Cells 4 Cells

Programmable

Items

Advanced Items

Programmable Value

【PROGRAMMABLE ITEMS LIST】(The italics texts in the above form are the default settings)

Programmable Values

1.1. Running Mode: In “Forward with Brake” mode, the car can go forward and brake, but cannot go backward, this mode is suitable for competition; “Forward/Reverse with Brake” mode provides backward function, which is suitable for daily training. Note: “Forward/Reverse with Brake” mode uses “Double-click” method to make the car go backward. When you move the throttle stick from forward zone to backward zone for the first time (The 1st “click”), the ESC begins to brake the motor, the motor speeds down but it is still running, not completely stopped, so the backward action is NOT happened immediately. When the throttle stick is moved to the backward zone again (The 2nd “click”), if the motor speed is slowed down to zero (i.e. stopped), the backward action will happen. The “Double-Click” method can prevent mistakenly reversing action when the brake function is frequently used in steering. By the way, in the process of braking or reversing, if the throttle stick is moved to forward zone, the motor will run forward at once. “Forward/Reverse” mode uses “Single-click” method to make the car go backward. When you move the throttle stick from forward zone to backward zone, the car will go backward immediately. This mode is usually used for the Rock Crawler.

1.2. Drag Brake Force: Set the amount of drag brake applied at neutral throttle to simulate the slight braking effect of a neutral brushed motor while coasting.

1.3. Low Voltage Cut-Off: The function prevents the lithium battery pack from over discharging. The ESC detects the battery’s voltage at any time, if the voltage is lower than the threshold for 2 seconds, the output power will be cut off, and the red LED flashes in such a way: “☆-☆-, ☆-☆-, ☆-☆-”. There are 6 preset options for this item. You can customize the cutoff threshold by using a LCD program box (optional equipment) to trim it with a step of 0.1V, so it will be more suitable for all kinds of batteries (NiMH, NiCd, Li-ion, Lipo, LFP, etc).

1.4. Start Mode (Also called “Punch”): Select from “Level1” to “Level9” as you like, Level1 has a very soft start effect, while level9 has a very aggressive start effect. From Level1 to Level9, the start force is increasing. Please note that if you choose “Level7” to “Level9” mode, you must use good quality battery pack with powerful discharge ability, otherwise these modes cannot get the burst start effect as you want. If the motor cannot run smoothly (the motor is trembling), it may caused by the weak discharge ability of the battery pack, please choose a better battery or a softer gear ratio.

1.5. Maximum Brake Force: The ESC provides proportional brake function. The brake force is related to the position of the throttle stick. Maximum brake force refers to the force when the throttle stick is located at the end point of the backward zone. A very large brake force can shorten the brake time, but it may damage the gears. The “Disable” option inhibits the inherent brake function of the speed controller. When this option is selected, the brake function is realized by a traditional mechanical disc-brake system driven by a servo.

1.6. Maximum Reverse Force: Sets how much power will be applied in the reverse direction. Different value makes different reverse speed.

1.7. Initial Brake Force: It is also called “minimum brake force”, and it refers to the force when the throttle stick is located at the initial position of the backward zone. The default value is equal to the drag brake force, so the brake effect can be very smoothly.

1.8. Throttle Neutral Range: Please refer to the picture on the right side to adjust the neutral range as your like.

1.9. Timing: There are many differences among structures and parameters of different brushless motors, so a fixed timing ESC is difficult to compatible with all brushless motors. It is necessary to make the timing value programmable. 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.

1.10. Over-Heat Protection: This function is permanently activated by the factory, user cannot disable it. The output power will be cut-off when the temperature of the ESC is higher than a factory-preset value for 5 seconds. When the

protection happens, the Green LED will flash in such a way: “☆-, ☆-, ☆-”.

1.11. Motor Rotation: You can use this item to change the rotation direction. Face to the motor shaft (That means the rear cover of the motor is far from your face), and move the throttle stick to the top point of the forward zone. If this item is set to “CCW”, the shaft runs counter-clockwise. If this item is set to “CW”, the shaft runs clockwise.

1.12. Lipo Cells: We strongly suggest setting the “Lipo Cells” item manually because sometimes the default setting “Auto Calculate” will cause mistake. For example, if you are using a discharged 4S Lipo battery, the ESC may mistakenly consider it as a fully charged 3S Lipo battery, and then the “Low voltage cut-off” protection function will be inordinate.

2. 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.

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