How to Use Phoenix Edge 75 AMP ESC, 8S / 33.6V with 5 AMP BEC: Examples, Pinouts, and Specs

The Phoenix Edge 75 AMP ESC is a high-performance electronic speed controller (ESC) designed for demanding applications in RC vehicles, drones, and other motor-driven systems. Manufactured by Phoenix, this ESC is capable of handling up to 75 amps of continuous current and supports 8S lithium polymer (LiPo) batteries, with a maximum voltage of 33.6V. It also features an integrated 5 amp battery eliminator circuit (BEC), which provides regulated power for servos, receivers, and other onboard electronics.

• Remote-controlled (RC) airplanes, helicopters, and drones
• High-performance RC cars and boats
• Robotics and automation systems
• Custom motor control projects requiring precise speed and power regulation

The following table outlines the key technical details of the Phoenix Edge 75 AMP ESC:

The Phoenix Edge 75 AMP ESC has the following key connections:

1. Connect the Battery: Attach the LiPo battery to the ESC's battery input terminals, ensuring correct polarity.
2. Connect the Motor: Connect the three motor wires (A, B, C) to the brushless motor. If the motor spins in the wrong direction, swap any two wires.
3. Connect the Receiver: Plug the ESC's signal input connector into the throttle channel of your RC receiver.
4. Power the System: Turn on the transmitter first, then connect the battery to the ESC. The ESC will initialize and emit a series of beeps to indicate readiness.
5. Calibrate Throttle: Follow the ESC's manual to calibrate the throttle range for optimal performance.

• Battery Compatibility: Ensure the LiPo battery used is within the 2S to 8S range (7.4V to 33.6V).
• Cooling: Avoid overheating by providing adequate airflow or heat dissipation, especially in high-current applications.
• Firmware Updates: Use the USB port to update the ESC firmware via Phoenix's official software for improved performance and features.
• BEC Usage: Do not exceed the 5A limit of the integrated BEC when powering external devices.

The Phoenix Edge ESC can be controlled using an Arduino UNO by generating a PWM signal. Below is an example code snippet:

#include <Servo.h> // Include the Servo library for PWM signal generation

Servo esc; // Create a Servo object to control the ESC

void setup() {
  esc.attach(9); // Attach the ESC signal wire to pin 9 on the Arduino
  esc.writeMicroseconds(1000); // Send minimum throttle signal (1000 µs)
  delay(2000); // Wait for 2 seconds to allow ESC initialization
}

void loop() {
  esc.writeMicroseconds(1500); // Send mid-throttle signal (1500 µs)
  delay(5000); // Run motor at mid-throttle for 5 seconds

  esc.writeMicroseconds(1000); // Send minimum throttle signal (1000 µs)
  delay(5000); // Stop motor for 5 seconds
}

Note: Ensure the ESC is properly calibrated before using it with an Arduino. Refer to the ESC's manual for calibration instructions.

1. Motor Does Not Spin

   • Cause: Incorrect wiring or throttle signal.
   • Solution: Verify motor connections (A, B, C) and ensure the throttle signal is properly calibrated.

2. ESC Overheating

   • Cause: Excessive current draw or poor ventilation.
   • Solution: Reduce load on the motor or improve cooling with a fan or heat sink.

3. BEC Not Powering Devices

   • Cause: Exceeding the 5A BEC limit.
   • Solution: Use an external BEC or power source for high-current devices.

4. Beeping Sounds

   • Cause: ESC is in programming mode or detecting an error.
   • Solution: Refer to the ESC's manual for beep code meanings and resolve the issue accordingly.

• Can I use this ESC with a brushed motor? No, the Phoenix Edge 75 AMP ESC is designed for brushless motors only.

• What happens if I connect a battery with a voltage higher than 33.6V? Connecting a battery with a voltage higher than the rated 33.6V can damage the ESC permanently.

• Can I disable the BEC? Yes, the BEC can be disabled via the Phoenix software if an external power source is preferred.

• Is the ESC waterproof? No, the ESC is not waterproof. Use waterproofing measures if operating in wet conditions.

This documentation provides a comprehensive guide to using the Phoenix Edge 75 AMP ESC effectively and safely. For further assistance, consult the manufacturer's manual or support resources.