Thank you for purchasing HengTuo Innovation Dragonfly Brushless Electronic Speed Controller(ESC). This is a new generation of sensorless speed controllers, with the latest humanized software design, especially for ALL types of brushless motors.

Please read and pay carefully attention to the following instructions before you start to work with your motor and controller.

Warnings! 

l Always connect the motor battery pack just before flight and disconnect it immediately after landing.

l Once the motor battery pack is connected, handle the model with extremely care!

l Ensure that you are well clear of the propeller at all times.

l Rotating propeller is extremely dangerous!

l Even when the receiver (BEC) switch is “OFF”, but please remember the motor battery pack may still be connected. Handle the model with extremely cares and stay clear of the propeller!

l Do Not use bad, damaged, cracked or bulged battery.

l Do Not connect the controller to just ‘any’ kind of power sources. Take care to ensure that the right polarity of NiCd, NiMH or Li-Poly power packs.

l Do Not connect the motor battery to the wrong polarity, the controller will be seriously damaged.

l Do Not connect the motor battery to the wrong polarity, the controller will be seriously damaged.

Specifications:

NOTE:  The above products are customizable to support Oneshot125 high speed control.

         Whether you buy the product with this feature, please consult your sales dealer.

Wires Connection:

The speed controller can be connected to the motor by soldering directly or with high quality connectors. Always use new connectors, which should be soldered carefully to the cables and insulated with heat shrink tube. The maximum length of the battery pack wires shall be within 6 inches.

l Solder controller to the motor wires.

l Solder appropriate connectors to the battery wires.

l Insulate all solder connectors with heat shrink tubes.

l Plug the “JR” connector into the receiver throttle channel.

l Controller Red and Black wires connect to battery pack Red and Black wires respectively.

Installing the Controller:

Install the controller in the model so that it is free from vibration and shock, using Velcro or double sided foam tape. Must be, make sure there is sufficient cooling for the motor and controller by ducting air through cooling holes from outside airflow.

Failure to do it, will cause damage to the motor or controller.

Normal start up:

Switch on transmitter and check throttle settings are +/-100% (for computer radio).

For Futaba Radio programs the “Servo Reverse” function on the throttle channel.

Pull throttle stick in down or brake position;

l Transmitter switches “ON”

l Connect battery pack to the controller

l Connect Flight Controller

l The position of full throttle will be calibrated automatically.

l You motor now is ready to run.

Factory default settings:

Battery type : Li-Poly Auto

Soft start :      Enable

Timing :      Auto

Frequency : 16KHz

How to program your controller:

l Switch on transmitter and push the throttle stick to full throttle.

l Connect the motor battery pack and turn on the receiver (BEC) switch.

l Wait for 2 seconds, you’ll hear two tones; programming mode is entered; for 5 seconds, programming setup can be started.

l When you hear the desired tones, pull the throttle down, then you’ll hear two confirmation tones. The setting is now memorized.

l You can only change one setting at a time, if you need to change more settings, disconnect the motor battery pack and wait 5 seconds, and repeat above procedure for next setting.

l You can exit the programming mode at any time if you disconnect the battery connector from ESC.

1. Rotation reverse

This function is to change the motor rotation direction.

(for example: Right to Left, or vice versa)

_. _. _. _.

2. Soft start (Acceleration)

When gearbox drive system is used. It’s highly recommended to enable the soft start.

It will protect the gearbox not to damage especially propeller of large diameter is used.

Disable the soft start function when direct-drive system is used or being in speed competition

Low:  

_  _   _   _

Normal:

_ _  _ _  _ _  _ _

High:

_ _ _  _ _ _  _ _ _  _ _ _

3. Timing (advance timing)

The controller has three timing modes; Automatic works perfect for ALL types of brushless motor. But for some brands or homemade brushless motors, you have to set the right timing for optimal efficiency and power; 7 degree for multi-pole motors, 30 degree for out runner motors.

Automatic: (7~30 degree)
-   -   -   -

Soft: (7 degree)
- -   - -  - -   - -

Hard: (22 ~ 30 degree)
- - -  - - -  - - - - - -

4. Switching Frequency

 The controller has two switching frequency modes. 8KHz is good for ALL types of two-pole motors. 16KHz is good for multi-pole motors.

8 kHz:

\   \   \   \  
 

16 kHz

/   /   /   / 

5. Restore Factory Default Setting

VV  VV  VV  VV  

Caution!

Warning! Model aircraft equipped with high power motor can kill. High power motor systems can be very dangerous! High currents can heat wires and batteries, causing fires and burning skin or anything. Follow the wiring connection carefully! Always fly at the approved field. Never fly over or near spectators. Even though this controller is equipped with a safety arming program, you should still be cautious when connecting the

main battery.