E-flite 20-Amp Brushless ESC User Manual

20-Amp Brushless

Speed Control

For Unparalleled Sensorless Brushless Performance

• Automatically selects cutoff voltage for 2- to 3-cell Li-Po batteries (6V/9V)*

• Automatically sets correct motor timing

• Safe power-on mode prevents accidental starts

• Programmable braking (on/off)

• 1.5A Battery Eliminator Circuit (BEC) to power radio & servos

• Includes gold bullet connectors for your motor

Speciﬁcations

Length: 36mm (1.4 in) Width: 24mm (.95 in) Height: 9mm (.37 in) Weight: 14 g (.5 oz) Cells: 6–12 Ni-Cd/Ni-MH; 2–3 Li-Po Continuous Amps: 20

* You must always use a fully charged battery pack in order to ensure proper cutoff voltage is selected. Once a battery pack has been partially discharged and unplugged from the ESC, reconnecting it before fully recharging the pack may result in the incorrect voltage cutoff being selected, potentially causing damage to the pack.

Servo Ratings with BEC Enabled:

CELLS SERVOS–HIGH TORQUE SERVOS STANDARD

6–8 Ni-Cd/Ni-MH 3 4 9–10 Ni-Cd/Ni-MH 2 3 11–12 Ni-Cd/Ni-MH N/A N/A 2 Li-Po 3 4 3 Li-Po 2 3

If you wish to disable the BEC (required if you’re using more than 10 cells), you must ﬁrst remove the red receiver wire and then insulate properly to prevent shorting.

20-Amp Brushless

Speed Control

PLEASE READ THESE INSTRUCTIONS IN THEIR ENTIRETY BEFORE USE

Before installing your ESC, take a moment to look it over. One side has a black wire, a red wire and a servo plug. The other side has three gold plugs.

The wires connect to your power battery. The servo plug connects to the throttle channel on your radio receiver. YOU MUST ENSURE THAT YOU CONNECT THE BATTERY PROPERLY. The red wire connects to the red wire on your battery pack, the black wire to the black wire on your battery pack. If the wires are reversed, the ESC may be damaged. Reversing the battery will void your warranty, so always double-check this connection. Solder a connector to the speed control that matches your battery connector. We suggest a set of Dean’s Ultra Plugs (WSD1300). Make sure you install the male connector on the ESC and the female on your battery.

The three wires from your motor connect to the three round gold connectors on the ESC. The order of connection to the motor is not important; you can plug any motor wire into any connector. If, when you test the system, the motor runs backwards, reverse any two of the motor wire plugs. It is usually easiest to switch the outside wires. If your motor does not come with connectors, solder the three male gold bullet connectors (EFLA241) included with your ESC to the three motor wires.

NOTE: If your brushless motor (such as Hacker E-Series motors by E-ﬂite have silicone insulated wire leads, you should solder the included pieces of silicone wire to your motor leads ﬁrst (use heat shrink tubing). Then you can solder the silicone wire leads directly to the female gold connectors on the ESC (be careful not to desolder the connectors from the board) or solder the male connectors to the silicone leads and plug into your ESC.

Before ﬁrst use, please refer to the chart on the front of this card for BEC usage and cutoff voltage guidelines. You must follow these guidelines for safe operation.

Plug the receiver wire into the throttle channel of your receiver before testing the ESC. First, turn on your transmitter. Then, plug the power battery into the ESC. Always start your system in this sequence. Your motor will beep when you plug the power battery in, and your servos should move. Check servo motion as part of your preﬂight check. You must always use a fully charged battery pack. It is very important you make sure linkages are free-moving with no binding. When you are ready to ﬂy, move the throttle stick to the low position. The motor will beep twice indicating the system is armed. You are now ready to ﬂy.

Changing the brake programming:

To turn the prop brake on or off, follow this sequence:

Disconnect the ESC from the battery, and leave disconnected for at least 30 seconds to allow the speed control to reset. Turn your transmitter ON.

Move the throttle control on your transmitter to FULL throttle.

Plug the battery into the ESC.

Wait 5 seconds. You should hear a second beep after the initial power-on beep.

Move the throttle control on your transmitter to the CENTER position.

Wait another 5 seconds. You will hear another beep.

Move the throttle control BACK to FULL throttle and wait for another beep.

Move the throttle control back to the CENTER position. You will hear three beeps.

To turn the brake ON, move the throttle BACK to the FULL throttle position.

10.

To turn the brake OFF, move the throttle DOWN to the OFF throttle position.

11.

Disconnect the battery. The brake is now programmed.

EFLA311 20 AMP

™

) does not

Made in USA

™

E-ﬂite

is an exclusive brand of Horizon Hobby, Inc.

For warranty guidelines or product support, call 877.504.0233.

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