Horizon Hobby EFLA1045 Manual

Manual of Brushless Motor Speed Controller

Features:

1. Use top quality components to get strong current endurance.
2. Low voltage cut-off protection / over-heat protection / throttle signal loss protection.
3. Throttle range can be configured to be compatible with all transmitters.
4. Maximum motor speed: 210000 RPM (2 poles), 70000 RPM (6 poles), 35000 RPM (12 poles).

Specifications:

Class Model
Current
20A 20A
40A 40A
40A 40A Ubec 40A

Begin To Use Your New ESC

IMPORTANT! Because different transmitter has different throttle range, please calibrate throttle range before flying.
How to set the throttle range and how to use the throttle stick to program the "Brake" function?
1. Move the throttle stick to the top (highest) position, and then connect battery pack to the ESC, You will hear 1 low, long tone to
indicate startup, then the respective number of medium-length mid-tones to indicate the cell count .
2. After 2 seconds, the motor sounds 2 long beeps (B—B—), which means the highest position of the throttle range is already
recognized by the ESC (After the beeps, if the throttle stick is moved to the lowest position in 2 seconds, the ESC will recognize the
lowest position, quit the throttle range calibrating process and get ready to start).
3. After 2 seconds, the motor sounds a short beep (B) after a music, which means the Brake function is Disabled (After the beep, if
the throttle stick is moved to the lowest position in 2 seconds,
programming mode and get ready to start).
4. After 2 seconds, the motor sounds 2 short beeps (BB), which means the Brake function is Enabled (After the beeps, if the throttle
stick is moved to the lowest position in 2 seconds,
mode and get ready to start).
5. After 2 seconds, the ESC stops running.
How to start the ESC?
Move the throttle stick to the lowest position, and then connect battery pack to the ESC, You will hear 1 low, long tone to indicate
startup, then the respective number of medium-length mid-tones to indicate the cell count, followed by 3 rising tones to indicate the
ESC is armed.

Protection Function

1. Start up failure protection: If the motor fails to start within 2 seconds of throttle application, the ESC will cut-off the output power. In
this case, the throttle stick MUST be moved to the bottom again to restart the motor. (Such a situation happens in the following
cases: The connection between ESC and motor is not reliable, the propeller or the motor is blocked, the gearbox is damaged, etc.)
2. Over-heat protection: When the temperature of the ESC is over about 110 Celsius degrees, the ESC will reduce the output power.
3. Throttle signal loss protection: The ESC will reduce the output power if throttle signal is lost for 1 second, further loss for 2 seconds
will cause the output to be cut-off completely.

Trouble Shooting

Trouble
After power on, motor does not work, no
sound is emitted
After power on, motor does not work,
such an alert tone is emitted:
"beep-beep-, beep-beep-,beep-beep-"
(Every "beep-beep-" has a time interval
of about 1 second)
Burst
Cont. BEC
Current
Mode
(>10s)
20A 25A Linear
40A 55A Linear
55A Switch 5V/4A
Possible Reason
1， The connection between battery
pack and ESC is not correct
2，Throttle signal is irregular；
3，The throttle stick is not in the
bottom (lowest) position
Input voltage is abnormal, too high
or too low.
BEC BEC Output Capability
Output
2S Lipo
5V/2A 5 servos
5V/3A 5 servos
5 Servos 5 Servos
the ESC will recognize the Brake function is
the ESC will recognize the Brake function is
Check the power connection.
Replace the connector.
Check the receiver and transmitter
Check the cable of throttle channel
Move the throttle stick to bottom position
Check the voltage of battery pack
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Battery Cell
3S Lipo Lipo NiMH
4 servos 2-3S 5-9 cells
4 servos 2-3S 5-9 cells
2-4S 5-12 Cells 43g
enabled, quit the programming
Action
Size
Weight
L*W*H
19g 42*25*8
35g 68*25*8
65*25*12
disabled, quit the
-