User manual
User Manual of Brushless Speed Controller
[TROUBLE SHOOTING]
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
interferenceinyingeld.
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.
[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
ESCwithdownwardairow.Thepictureontherightsideshowstheinstallation.
Mark:Directionoftheairow
and the impeller
Fan
Heat Sink
Speed Controller
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 conrm 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
workasanUSBadaptertoconnecttheESCwithaPCtoupdatetheESCrmwareonline.
Page - 2 -
2. Throttle Range Setting (Throttle Range Calibration)
InordertomaketheESCtthethrottlerange,youmustcalibrateitforthefollowingcases;otherwisetheESCcannotworkproperly.
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 Futaba
TM
transmitter.
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,
whentheredLEDbeginstoash,releasethe
key immediately. (*Note3)
(Please refer to the picture on the right side)
“SET” Key Hold the “Set” key
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
nished,themotorcanbestarted
after 3 seconds.
Move the throttle stick to the
neutral position
Press “SET” key, the Green
LED ashes once and motor
emits “Beep” tone
Press “SET” key, the Green
LED ashes twice and motor
emits “Beep-Beep” tone
Press “SET” key, the Green
LED ashes thrice and motor
emits “Beep-Beep-Beep” tone
Move the throttle stick to
the end position of forward.
Move the throttle stick to the
end position of backward.
Note2: If you don’t release the “SET” key after the red LED begins to ash, 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 18A-SL is beside the main switch of the controller.
3. 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%.
[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.