Hobbywing EZRUN-WP-SC8, EZRUN-WP-SC10 User Manual

USER MANUAL OF EZRUN-WP-SC8 & EZRUN-WP-SC10 ESC HW-SM414ENG-20140305 Page 1 of 3

【DECLARATION】
Thanks for purchasing our Electronic Speed Controller (ESC). The 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.

【FEATURES】

 Completely water-proof and dust-proof. The ESC works properly even under water.

(Please remove the cooling fan when running car in water, and after running, please make the ESC clean
and then dry it to avoid the oxidation of copper connectors)

 Excellent start-up, acceleration and linearity features, suitable for truggy (especially short course trucks) and buggy.
 The built-in switching mode BEC of EZRUN-WP-SC8 has a powerful output to supply all electronic equipments.
 There is a mounting stand for installing the ESC on chassis easily and firmly.
 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 the SET button of the ESC, and also compatible with pocket-sized Program Card (Optional

equipment) and the advanced LCD Program Box (Optional equipment).

 Special program port for connecting to the LED Program Card or the LCD Program Box. User needn’t unplug the Rx

lead from receiver when programming the ESC.

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

【SPECIFICATIONS】

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.

1. Connect The ESC, Motor, Receiver, Battery
And Servo

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.

2. Throttle Range Setting (Throttle Range
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 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.

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

a) When the throttle stick is in the neutral range, neither the Red LED nor the Green LED lights up.
b) When the car moves forward, the Red LED solidly lights; the Green LED also lights up when the throttle stick is at

the top position (100% throttle).

c) When the car brakes, the Red LED solidly lights; the Green LED also lights up when the throttle stick is at the

bottom position and the maximum brake force is set to 100%.

d) When the car reverses, the Red LED solidly lights; the Green LED also lights up when the throttle stick is at the

bottom position and the maximum reverse force is set to 100%.

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 # 11 --- “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.

Model

EZRUN-WP-SC10

EZRUN-WP-SC8

Cont./Burst Current

80A / 520A

120A / 760A

Suitable Motor

Sensorless brushless motors

Suitable Car

1/10 SCT/Truggy / Buggy /Monster

1/10 SCT/Truggy / Buggy /Monster

1/8 SCT / Buggy

( Includes TRAXXAS 1/10 Truggy and Buggy)

Motor Turns

2S Lipo : KV≤6000
3S Lipo : KV≤4000

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

Resistance

0.0007 ohm

0.0004 ohm

Battery

6-9 cells Ni-xx (NiMH or NiCd)

2-3S Li-Po

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

2-4S Li-Po

BEC Output Note 1

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

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

Dimension

59.3(L) × 38.4(W) × 33.6(H)

Weight

110g (With 12AWG 200mm * 5 wires)

113g (With 12AWG 200mm * 5 wires)

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.

USER MANUAL OF EZRUN-WP-SC8 & EZRUN-WP-SC10 ESC HW-SM414ENG-20140305 Page 2 of 3

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

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

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

Enable

Disable

11.Motor Rotation

Counter

Clockwise

Clockwise

12.Lipo Cells

Auto Calculate

2 Cells 3 Cells 4 Cells

Programmable

Items

Programmable Value

Basic Items

Advanced Items

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 your 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: If the function is activated, 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. It needs to be restarted to complete the whole process.

【TROUBLE SHOOTING】

Trouble

Possible Reason

Solution

After power on, motor doesn’t work,

and the cooling fan doesn’t work

The connections between
battery pack and ESC are not
correct

Check the power connections
Replace the connectors

After power on, motor can’t work,

but emits “beep-beep-, beep-beep-”
alert tone. (Every “beep-beep-” has

a time interval of 1 second )

Input voltage is abnormal, too
high or too low

Check the voltage of the battery pack
After power on, red LED always

lights, the motor doesn’t work

Throttle signal is abnormal

Plug the control wire into the throttle channel
of the receiver correctly.

The motor runs in the opposite
direction when it is accelerated

1)The wire connections between
ESC and the motor are not
correct

2)The chassis is different from
the popular design

Swap any two wire connections between the
ESC and the motor. Or change the
programmable item #11 (Motor Rotation) to
“CW(Clockwise)”

The motor suddenly stops running
while in working state

The throttle signal is lost

Check the transmitter and the receiver
Check the signal wire from the throttle channel
of your receiver

The ESC has entered the Low
Voltage Protection Mode or
Over-heat Protection Mode

Red LED flashing means Low Voltage. Green
LED flashing means Over-heat

When accelerating quickly, the
motor stops or trembles

1) The battery has a bad
discharge performance

2) Gear ratio is too aggressive

3) The “Start Mode (Punch)” of
the ESC is too aggressive

1) Use a better battery

2) Use lower KV motor or softer gear ratio

3) Set the “Start Mode (Punch)” to a softer
value

When the throttle stick is in the
neutral range, the red LED and the
green LED flashes synchronously

Over current protection, motor
demagnetization, or motor is
over load

1) Reduce the load (Use softer gear ratio or
reduce the input voltage)

2) Change the motor

Cannot connected with the LED
Program Card or LCD Program Box

Mistakenly uses the Rx wire to
connect to the program
card/box.

Connect the program card/box to the special
programming port of the ESC, don’t use the
Rx wire.