Hobbywing EZRUN-60A, EZRUN-35A User Manual

User Manual of “EZRUN” Series Brushless Speed Controller HW-SM401ENG-20120630 Page - 1 -

Model

EZRUN-18A-SL

EZRUN-25A-SL

EZRUN-35A-SL

EZRUN-60A-SL

Cont. Current

18A

25A

35A

60A

Burst Current

50A

90A

190A

380A

Resistance

0.01 ohm

0.005 ohm

0.0015 ohm

0.0007 ohm

Suitable Car

1/18, 1/16 car

1/10 car

Suitable
Brushless Motor

2 cells Lipo

6 cells NiMH

On-road: ≥12T

Off-road: ≥18T

2030 size motor

On-road: ≥9T

Off-road: ≥12T

3650 size motor

On-road: ≥5.5T

Off-road: ≥8.5T

3650 size motor

3 cells Lipo

9 cells NiMH

On-road: ≥18T

Off-road: ≥24T

2030 size motor

On-road: ≥12T

Off-road: ≥18T

3650 size motor

On-road: ≥8.5T

Off-road: ≥13T

3650 size motor

Battery

4-9 Cells NiMH or 2-3 Cells Li-Po

1) For 4-6 cells NiMH or 2 cells Lipo: You needn’t change the fan combined with the ESC;

2) For 7-9 cell NiMH or 3 cells Lipo: You must change the fan combined with the controller
because it cannot work with such a high voltage, so please choose a high voltage fan or supply
the fan from the receiver (+5V); (*Note1)

BEC Output

6V/1A

6V/1.5A

Motor Type

Sensorless Brushless Motor

Dimension

31.5* 24* 15

31.5* 27.5* 16

31.5* 27.5* 24

(The height of fan is not included)

Weight

19g (W/O wires)

23g (W/O wires)

30g (W/O wires)

32g (W/O wires)

【DECLARATION】
Thanks for purchasing “EZRUN” series Electronic Speed Controller (ESC). High power system for RC

USER MANUAL

EZRUN SERIES

SENSORLESS BRUSHLESS

SPEED CONTROLLER

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.

【FEATURES】

1. Specially designed for RC car and truck, with excellent start-up, acceleration and linearity features.

2. Compatible with sensorless brushless motor.

3. 3 running modes suitable for different applications (“Forward with brake” mode, “Forward/Backward with
brake” mode and “Rock crawler” mode).

4. 4 steps of maximum reverse force adjustment.

5. Proportional ABS brake function with 4 steps of maximum brake force adjustment, 8 steps of drag-brake force
adjustment and 4 steps of initial brake force adjustment.

6. 9 start modes (“Punch”) from “Soft” to “Very aggressive” to be suitable for different chassis, tires and tracks.

7. Multiple protection features: Low voltage cut-off protection for lithium or nickel battery / Over-heat protection /
Throttle signal loss protection / Motor blocked protection.

8. 8 steps of timing adjustment.

9. User programmable. Several program methods are supported, such as: The “SET” button on the ESC, the
digital LED program card, the advanced LCD program box, the PC software, etc. The program card and
program box are pocket-sized and they have friendly user interface to be easily used.

10. The firmware of ESC can be online updated through an USB adapter on the advanced LCD program box.

11. Dustproof.

【SPECIFICATIONS】

FOR

CAR AND TRUCK

Note1: For information about the high voltage cooling fan,
please refer to the brief introduction on page 2.

【BEGIN TO USE THE NEW ESC】

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

according to the following diagram

“+” and “-” wires of the ESC are connected with the battery
pack, and #A, #B and #C are connected with the motor wires.
The “SET” button is used for programming the ESC.

The control cable of the ESC (trio wires with black, red and

white color) is connected with the throttle channel of the
receiver (Usually CH2).

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: You can use the transmitter to set the throttle

channel to the “Reverse” direction, and then the motor
will run oppositely. Please calibrate the throttle range
again after changing the direction of throttle channel.

User Manual of “EZRUN” Series Brushless Speed Controller HW-SM401ENG-20120630 Page - 2 -

Trouble

Possible Reason

Solution

After power on, motor can’t work, no
sound is emitted

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, motor can’t work, but
emits “beep-, beep-, beep-” alert tone.
(Every “beep-” has a time interval of
about 2 seconds)

Throttle signal is abnormal

Check the transmitter and the
receiver
Check the wire of the throttle
channel

The motor runs in the opposite direction

The wire connections between
ESC and the motor need to be
changed

Swap any two wire connections
between the ESC and the motor.

The motor suddenly stops running
while in working state
The throttle signal is lost

Check the transmitter and the
receiver
Check the wire of the throttle
channel

The ESC has entered the Low
Voltage Protection Mode

Replace the battery pack

Random stop or restart or irregular
working state

Some connections are not
reliable

Check all the connections: battery
pack connections, throttle signal
wire, and motor connections, etc.

There is strong Electro ­Magnetic interference in flying
field.

Reset the ESC to resume normal
operation. If the function could not
resume, you might need to move to
another area to run the car.

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” brake function
of your transmitter. (*Note2)

B) Hold the “SET” key and then switch on the

ESC, when the red LED begins to flash,
release the key immediately. (*Note3)

(Please refer to the picture on the right side)

C) Set the THREE points

according to the steps
shown in the picture on
the right side.

1) Neutral point

2) End point of forward
direction

3) End point of backward
direction

D) When the process of

calibration is finished, the
motor can be started after
3 seconds.

2. Throttle Range Setting (Throttle Range Calibration)

【TROUBLE SHOOTING】

In order to make the ESC fit the throttle range, you must calibrate it for the following cases; otherwise the ESC
cannot work properly.

1) Begin to use a new ESC;

2) Begin to use a new transmitter;

3) Change the settings of neutral position of the throttle stick, ATV or EPA parameters, etc.
There are 3 points need to be set, they are the top point of “forward”,” backward” and the neutral point.
The following pictures show how to set the throttle range with a FutabaTM transmitter.

Note2: If you don’t release the “SET” key after 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.
Note3: The “SET” key of EZRUN-18A-SL is beside the main switch of the controller.

3. The LED Status in Normal Running

a) In normal use, if the throttle stick is in the neutral range, neither the red LED nor the green LED lights.
b) The red LED lights when the car is run forward or backward and it will flash quickly when the car is braking.
c) 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 it is out of the
normal range, such an alert tone will be emitted: “beep-beep-, beep-beep-, beep-beep-” (There is 1 second
time 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 emitted: “beep-, beep-, beep-” (There is 2 seconds time interval between every “beep-” tone).

【PROTECTION FUNCTION】

1. Low voltage cut-off protection: If the voltage of a lithium battery pack is lower than the threshold for 2 seconds,
the ESC will cut of the output power. Please note that the ESC cannot be restarted if the voltage of each
lithium cell is lower than 3.5V.
For NiMH battery packs, if the voltage of the whole NiMH battery pack is higher than 9.0V but lower than 12V,
it will be considered as a 3 cell lithium battery pack; If it is lower than 9.0V, it will be considered as a 2 cell
lithium battery pack. For example, if the NiMH battery pack is 8.0V, and the threshold is set to 2.6V/Cell, so it
will be considered as a 2 cell lithium battery pack, and the low-voltage cut-off threshold for this NiMH battery
pack is 2.6*2=5.2V.

2. Over-heat protection: When the temperature of the ESC is over a factory preset threshold for 5 seconds, the
ESC will cut off the output power. You can disable the over-heat protection function for competition race.

3. Throttle signal loss protection: The ESC will cut off the output power if the throttle signal is lost for 0.2 second.

【OPTIONAL ACCESSORIES FOR UPGRADE】

We provide the following optional accessories for upgrade your power system:

1. Cooling fan (12V): The high voltage fan is necessary when you are using
battery pack more than 6 cells of NiMH. It is located on the heat sink of the ESC, it
helps to cool the ESC with downward airflow. The picture on the right side shows
the installation.

WARNING! Please note the original fan (5V) combined with the ESC can
ONLY work with a 2 cells lithium battery pack or 4-6 cells NiMH battery pack.
Please NEVER use it with a 3 cells lithium battery pack or NiMH battery pack
more than 6 cells, otherwise it may be destroyed.
Please check the label of the fan carefully to confirm its working voltage
before using it.

2. Program card (Digital LED Display).

Program card is an optional accessory which needs to be purchased separately.
It has a friendly user interface. The process of programming the ESC becomes
quite easy and fast with this pocket sized device. When the programmable value
needs to be changed, please just plug the control wires of the ESC (trio wires with
black, red and white color) into the socket of the program card (The socket is on
the right corner, and marked with ), and then connect the main battery pack
to the ESC, each item’s value will be shown on the program card. Use “ITEM” and
“VALUE” buttons to select the programmable items and new values, and then
press “OK” button to store the new settings into the ESC.

3. Advanced program box (LCD Display).

Advanced program box is an optional accessory which needs to be purchased separately.
It has LCD display to show the programmable items, so it can work as an individual device to set the ESC. And it
can also work as an USB adapter to connect the ESC with a PC to update the ESC firmware online.