Instructions for Use
1. Product Introductions
2. Instructions
Switch on the transmitter,
move the throttle stick to the top.
Switch on the transmitter,move the
throttle stick to the bottom.
Connect the battery pack to the ESC,
a special tone like "♪123"will be
emitted,means the power supply is OK
Faults
After power on, the
motor does not work,
no sound is emitted.
After power on, the motor
does not work, a warning
tone “beep-beep-, beep-
beep-, beep-beep-” (every
“beep-beep-” has an
interval of 1 second)
is emitted.
After power on, the motor
does not work, a warning
tone “beep-, beep-, beep-”
(every “beep-” has an
interval of 2 seconds)
is emitted.
After power on, the motor
does not work, a warning
tone “beep, beep, beep”
(every “beep” has an
interval of 250 millise-
conds) is emitted.
After power on, the motor
does not work, a special
tone “♪56712” is emitted
after a warning tone
“beep-, beep-”.
The motor runs in
opposite direction.
The line sequence of
connection between
the ESC and the
motor is wrong.
Swap any two wire
connections between
the ESC and the
motor.
The direction of the
throttle channel is
reversed.
Set the direction of
the throttle channel
correctly.
There are two
possible reasons:
● The throttle stick is
not at the bottom.
● The throttle range
is too small.
Solution for each reason:
● If the throttle stick is
not at the bottom, move
the throttle stick to the
bottom.
● If the throttle range is
too small, reset the
throttle range.
The throttle signal is
abnormal:
● The throttle signal
in ESC from the
receiver is loss.
● The throttle channel
of the receiver does
not output the
throttle signal.
Check whether the
transmitter and receiver
are matched, and then
check the connection
of the throttle channel.
The voltage of
battery pack is
abnormal (too
high or too low).
Check the voltage of
the battery pack.
The connection
between the ESC
and the battery
pack is loose.
Check the connection
between the ESC and the
battery pack, plug in or
replace the connector,
make sure the connection
is reliable.
Possible Reasons S olutions
Connect the battery pack to the
ESC,and wait for about 2 seconds.
The"beep-beep-"tone will be emitted,
means the top position of the
throttle range has been confirmed.
Move the throttle stick to the bottom
position,and wait for about 1 second.
Several"beep-"tones will be emitted
to present the number of battery cells.
A"beep"tone will be emitted,means
the lowest position of the throttle
range has been confirmed.
Move the throttle stick upwards
to go flying.
Throttle Range Setting
Normal Start Procedure
Several "beep-"tones will be emitted
to present the number of battery cells.
When self-test is fonished,a
long"beep-----"tone will be emitted.
Move the throttle stick upwards
to go flying.
NO. Tones Items Tone Description
1 beep-
Cut Off Type
Battery Type
Brake
2 short tones
3 short tones
4 short tones
1 long tone
1 long 1 short
1 long 2 short
2 long tones
1 short tone
beep-beep-
Cut Off Voltage
beep-beep-beep-
Start Mode
beep-----
Restore Factory Default
beep-----beep-
Exit
beep-----beep-beep-
beep-----beep-----
beep-beep-beep-beep-
Timing Mode
2
3
4
5
6
7
8
Tones
"beep-"
1 short tone
"beep-beep-"
2 short tones
"beep-beep-beep-"
3 short tones
Items
Brake
OFF ON
Battery Type Li-Po Ni-MH
Cut Off Type Soft-Cut Cut-Off
Cut Off Voltage Low Middle High
Start Mode Normal Soft Very Soft
Timing Mode Low Middle High
Thanks for purchasing the Electronic Speed Controller (ESC). High power
system for RC model can be very dangerous, please read the manual
carefully before use, since incorrect use can cause personal injury and
equipment damage. We assume no liability for personal injury, property
damage or consequential damages resulting from use of the product or
unauthorized alteration of the product. Products and the user manual shall
be subject to any changes without additional notices.
NOTE:
The ESC suffixed by UBEC means this is an ESC with a built-in UBEC.
The ESC model without a suffix means this is an ESC with a built-in BEC.
Ultra battery elimination circuit (UBEC) uses a switch-mode DC-DC
regulator to output the power supply. Compared with the traditional linear
mode BEC, The UBEC has higher efficiency, lower loss, and higher output
driver capability. In heavy load conditions, the UBEC is more stable and
reliable.
NOTE:
Before programming the ESC with transmitter, please check the throttle
curve of transmitter, and make sure the throttle output is set to 0 when the
throttle stick is at bottom position and 100% at the top position.
(2) Set the value by moving the throttle stick to the top when you hear the
matched tone, then a special warning tone “♪1515” will be emitted,
means the value is set and saved.
● If you need to set other programmable items, keep the throttle stick at
top, you will go back to step 2, and you can select other
programmable items and set the value.
● If you do not need to set other programmable items, move the throttle
stick to bottom position within 2 seconds, you will exit the
programming mode directly.
4. Exit the programming mode.
There are two ways to exit the programming mode:
● When set the item value in step 3, after the special warning tone “♪
1515”, please move the throttle stick to the bottom position within 2
seconds.
● When select the programmable items in step 2, after the tone
“beep----- beep-----” (i.e. the eighth item), please move the throttle
stick to the bottom position within 3 seconds.
Steps:
1. Enter the programming mode.
(1) Switch on the transmitter, move the throttle stick to the top position, and
connect the battery pack to the ESC.
(2) Wait for about 2 seconds, the motor will emit a warning tone like
“beep-beep-”.
(3) Wait for another 5 seconds, a special warning tone like “♪56712” will be
emitted, means the programming mode is entered.
2. Select the programmable items.
After entering the programing mode, you will hear 8 different tones in a
loop in the following sequence as shown in the table below. If you move
the throttle stick to the bottom within 3 seconds after one of the tones, this
programmable item will be selected.
As shown in the figure, the ESC is connected with battery pack, brushless
motor and receiver to form a brushless power system.
The input lines of ESC are connected
with the battery pack.
The output lines of ESC are connected
with the motor.
The signal lines of ESC are connected
with the throttle channel of the receiver.
The throttle range setting is as shown in the figure. After setting the throttle
range, you can begin to use the ESC according to the normal start procedure
as shown in the figure.
All the electronic components in ESCs are genuine original, to ensure
the ESCs working with high quality and reliability.
Microprocessor in the ESC is powered by separate voltage regulator IC,
with better anti-jamming capability, greatly reducing the possibility of out
of control.
The ESCs have three start modes: Normal, Soft, and Super-soft, it can
be used for both fixed-wing aircraft and helicopter.
The ESCs have full protection features such as low voltage protection,
over-heat protection, over-load protection, and throttle signal lost
protection, it can effectively extend the service life of the ESCs.
The ESCs support selectable timing, compatible with aircraft motors and
disc-type motors.
The throttle range can be configured, fully compatible with the available
transmitters. The ESCs have smooth and accurate speed control, and
excellent throttle linearity.
The highest motor speed: 210000 RPM (2 poles), 70000 RPM (6 poles),
35000RPM (12 poles).
A LED programming card with a very small size and intuitive interface
can be purchased additionally for easily programming the ESC (For
details, please see the user manual of program card).
1.2 Prog rammable Items
2.1 Begin to Use the ESC
2.2 Prog ram the ESC w ith transmitter
3 Trouble shooting
1.4 S pecifications
CA UTION:Different transmitters have different throttle ranges, when
you use the ESC first time, or change a new transmitter, please calibrate
throttle range before flying.
Brushless Motor Battery Pack
Receiver
Signal line
ESC
1.1 Features
Start protection: If the motor fails to start up within 2 seconds while pushing
up the throttle stick, the ESC will cut off the output power and then try to
restart the motor after 2 seconds. Such a situation happens in the following
cases:
· The connection between the ESC and the motor is loose.
· The propeller is blocked by other objects.
· The gearbox is damaged.
Over-heat protection: When the temperature of the ESC is over about 110
Celsius degrees, the ESC will gradually reduce the output power. To ensure
that the motor can still get power to avoid a crash, the ESC will not shut
down all the output power, maximum reducing to 40% of the full power. After
the temperature drops, the ESC will gradually recover to maximum power.
Low voltage protection: If the battery voltage is lower than the cut off
threshold, the ESC will reduce the output power to zero according to the
pre-set cut off type.
Throttle signal loss protection: The ESC will gradually reduce the output
power if the throttle signal is lost for 1 second, further loss for 2 seconds will
cause the output cut off. If the throttle signal is recovered within 2 seconds,
the throttle control will be recovered immediately.
Over-load protection: If the load of motor increases suddenly, the ESC will
cut off the output power and then try to restart after 2 seconds.
1.3 Protection Functions
Battery Type Values: Li- Po, Ni- MH. The default is Li- Po.
Low Voltage
Protection
Mode
(Cut Off Type)
Low Voltage
Protection
Threshold
(Cut Off
Voltage)
Start Mode
Timing Mode
Values:
S oft- Cut: Gradually reduce the output power.
Cut- Off: Immediately shut off the output power.
The default is S oft Cut.
Items Parameter Description
Brake Values: OFF, ON. The default is OFF.
CAUT ION: When the ESC is in low voltage protection
mode, you need to move the throttle stick to the bottom
to restart the motor. After the restart, the ESC will still be
in low voltage protection mode, so the output power will
be low.
Values: Low , Middle, Hig h. The default is Middle.
When the Battery T ype is Li- Po, the number of battery
cells is calculated automatically. Low, middle and high cut
off voltages for each cell are 2.85V, 3.15V and 3.3V. For
example, for a 3S Li-Po battery pack, when Middle cut
off threshold is set, the cut off voltage will be
3.15*3=9.45V.
When the Battery Type is Ni- MH, low, middle and high
cut off voltages are 0%, 50% and 65% of the start voltage
(i.e. the initial voltage of battery pack), and 0% means the
low voltage cut off function is disabled. For example, for
a 6 cells Ni-MH battery pack, fully charged voltage is
1.44*6=8.64V, when Middle cut off threshold is set, the
cut off voltage will be 8.64*50%=4.3V.
Values: Normal, S oft, V ery Soft. The default is Normal.
It takes 300 milliseconds for Normal mode, 1.5 seconds for
S oft mode, or 3 seconds for V ery S oft mode from initial
throttle advance to full throttle.
Normal mode is suitable for fixed-wing aircraft. S oft or
V ery S oft mode are suitable for helicopters.
Values: Low , Middle, Hig h. The default is Middle.
Low, middle and high timing values are 3.75°, 5° and
26.25°. Usually, Low timing value can be used for most
motors. Due to the large difference of the motor structure,
please try each timing value to get satisfactory effect. To
get higher speed, High timing value can be chosen.
CAUT ION: After changing the timing setting, please test
your RC model on ground prior to flight.
NOTE:
A long tone “beep-----” is equal to five short tones “beep-”, thus the tone
“beep-----beep-” means the sixth item.
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TOMCAT MOTORS RC HOBBY CO., LTD
www.tomcat-motor.com
Email:sales@tomcat-motor.com
3. Set the item value.
(1) After entering the programmable item, you will hear several tones in loop,
for details please see the table below.
Skylord-6A 6A
12A
15A
20A
30A
40A
50A
60A
80A
8A
15A
20A
25A
40A
55A
65A
80A
100A
Skylord-12A
Skylord-15A
Skylord-20A
Skylord-30A
Skylord-40A-UBEC
Skylord-50A-UBEC-5A
Skylord-60A-UBEC
Skylord-80A-UBEC
Cont.
Current
Model
BEC
Mode
Linear
Linear
Linear
Linear
Linear
Switch
Switch
Switch
Switch
2
2~3
5~6
5~9
5~9
5~9
5~9
5~12
5~12
5~18
5~18 80g
62g
42g
42g
38g
20g
17g
10g
5.5g 32*12*4.5
38*18*7
48*23*6
42*25*8
65*25*12
65*25*12
65*25*12
77*35*14
86*38*12
2~3
2~3
2~3
2~4
2~4
2~6
2~6
6 servos
6 servos
6 servos
6 servos
5 servos
6 servos
8 servos
8 servos
5 servos
8 servos
4 servos
4 servos
4 servos
4 servos
8 servos
8 servos
5 servos
8 servos
5 servos
5 servos
5 servos
3 servos
5 servos
5V/1A
5V/2A
5V/2A
5V/2A
5V/2A
5V/3A
5V/5A
5V/5A
5V/5A
BEC
Output
5S Li-Po4S Li-Po3S Li-Po2S Li-Po Li-Po Ni-MH
Weight
BEC Output Capacity Battery Cell
Burst
Current
(10s)
Size
(L*W*H,
unit: mm)
100A 120A
Skylord-100A-UBEC
Switch 5~18 74g 70*30*202~610 servos10 servos12 servos12 servos
5V/10A
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--
--
--
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50A 65A
Skylord-50A-UBEC-3A Switch 5~12 42g 65*25*122~45 servos5 servos5 servos5V/3A
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