FLYSKY FS-R4D-ESC (01) PDF Document

The FLYSKY FS-R4D-ESC is a 2-in-1 receiver and electronic speed control unit with the following specifications:

The receiver features various pins and cables for control and power:

[1] CH1 Interface

[2] CH3 Interface

[3] CH4 Interface

[4] Left Turn Signal Light

[5] Right Turn Signal Light

[6] Headlight Interface

[7] Tail Light Interface

[8] Ambient Light Interface

[9] Roof Light Interface

[10] Car Light Interface Negative Pole

[11] Car Light Interface Positive Pole

[12] Tab for Hanging Power Switch

[13] Power Switch Cable

[14] Motor Cable Positive (+)

[15] Power Cable Positive (+)

[16] Power Cable Negative (-)

[17] Motor Cable Negative (-)

[18] Heatsink

[19] Antenna

[20] Receiver LED

[21] ESC LED

[22] CH Interface Signal Pin

[23] CH Interface Positive (+)

[24] CH Interface Negative (-)

The receiver automatically enters binding mode once it is powered on. Follow these steps:

1. First, put the transmitter into binding mode.

2. Turn on the receiver. It will wait for 1 second for a connection. If no connection is found, the receiver will enter binding mode automatically.

3. Once binding is successful, the receiver LED will remain solid on.

4. Verify that the transmitter and receiver are working properly. If you need to re-bind, repeat the steps above.

Note: Set the transmitter to its binding state first, then the receiver. If binding is not completed within 10 seconds, the receiver LED will enter a slow flashing state. If re-binding is successful, all car light settings will be restored to default values.

The FLYSKY FS-R4D-ESC includes low/high voltage and overheating protection:

Low Voltage Protection: When low voltage is detected, CH2 has no output and all car lights flash slowly. The ESC LED will flash slowly and continuously. Once voltage returns to normal, the receiver exits protection mode.

High Voltage Protection: When high voltage is detected, all channels will stop outputting and all car lights will flash fast.

Overheating Protection: If the internal temperature of the ESC is detected to be too high, CH2 provides no output and all car lights flash fast. Once the temperature returns to normal, the channel resumes output.

The FLYSKY FS-R4D-ESC supports 6 sets of lights and two control modes (four-channel or two-channel). You can switch between these modes by turning on the transmitter, rotating the steering wheel clockwise to the maximum travel, and then turning on the receiver at the same time.

Car Light Operation Modes: There are four modes: Normal mode, sports mode, gradual mode, and sharp flash mode. Quickly press the CH4 button twice to cycle through these modes. By default, the unit operates in normal mode.

Ambient and roof lights can work in separate or combination modes. By default, they work in separate mode. To switch between these two modes, turn the steering wheel from the neutral position four times clockwise quickly.

Separate Mode: Ambient and roof lights operate independently. Rotate the steering wheel clockwise quickly three times to switch ambient light states (Gradual, Sharp Flash, Three-flash-one-off, OFF). Rotate the steering wheel counterclockwise quickly three times to switch roof light states (Solid ON, Slow Flash, OFF).

Combination Mode: Ambient and roof lights are controlled in a unified manner. Turn the steering wheel clockwise three times from center to cycle through Fast Flash, Gradual State, and OFF.

The ESC automatically recognizes the throttle neutral every time it is powered on. It must complete a self-inspection (about 3 seconds) before it can be operated normally.

Battery Recognition:

2S LiPo: ESC LED flashes twice and motor beeps twice.

3S LiPo: ESC LED flashes three times and motor beeps three times.

NiMH cells: ESC LED flashes once and motor beeps once.

Calibration: After successful calibration, the ESC LED flashes once and the motor gives a long beep. If throttle neutral is not recognized, the motor will continue to beep quickly and no power output will occur.

Normal Operation LED Status:

Throttle at neutral: ESC LED is off, no motor output.

Forward movement: ESC LED flashes quickly; at 100% throttle, the LED becomes solid on.

Reversing or Failsafe: ESC LED flashes quickly.

The failsafe function protects the model and personnel if the receiver loses signal:

CH1, CH3, and CH4: These can be set at the transmitter side. The default setting is “Not set”.

CH2 (ESC): This channel automatically enters a braking state in case of out-of-control signal loss.

Light Control: If in an emergency state, the emergency lights keep their last state. For other car light modes, all lights turn off during signal loss.

Ensure the product is installed and calibrated correctly to avoid serious injury.

Verify that power matching is reasonable for the car frame and power devices before use.

Do not allow external system temperatures to exceed 90 degrees Celsius (194 degrees Fahrenheit).

Always disconnect the receiver battery before turning off the transmitter to prevent out-of-control accidents.

After use, always disconnect the battery from the ESC; otherwise, the ESC will continue to consume power even when off, which can lead to complete battery failure.

Keep the receiver antenna at least 1cm away from conductive materials like carbon or metal.

If throttle trim is adjusted on the transmitter, the receiver must be re-powered to recognize the new neutral position.