Mitoot UAngel 4IN1 45A/60A BLHELI_S ESC Instruction Manual

1. Introduction

Thank you for choosing the Mitoot UAngel 4IN1 45A/60A BLHELI_S Electronic Speed Controller. This high-performance 4-in-1 ESC is designed for FPV drones and RC airplanes, offering robust power delivery and precise motor control. It supports 3-6S LiPo batteries and various digital and analog protocols including DShot300-600, Multishot, Oneshot, and PWM. This manual provides essential information for safe installation, operation, and maintenance of your ESC.

2. Safety Information

⚠️ For recreation use only. Illegal modification of drones/planes is prohibited. Please also pay attention to the relevant laws and regulations on the use of drones/planes in your country/area to ensure legal use.

• Always ensure correct polarity when connecting the ESC to the battery. Incorrect connection can cause severe damage.
• Avoid short circuits during installation and operation.
• Keep the ESC away from water, moisture, and extreme temperatures.
• Ensure proper ventilation to prevent overheating, especially during high-current operation.
• Always disconnect the battery before performing any maintenance or modifications.

3. Package Contents

The package typically includes the following items:

• Mitoot UAngel 4IN1 BLHELI_S ESC (45A or 60A version)
• Electrolytic Capacitor
• Power Wires (Red and Black)
• Signal Cable
• Mounting Grommets (typically purple silicone)

4. Specifications

General Specifications:

Version-Specific Specifications:

5. Setup and Installation

Follow these general steps for installing your 4IN1 ESC. Always refer to your flight controller's manual for specific wiring diagrams and software configuration.

5.1 Physical Installation

1. Mounting: Use the provided mounting grommets to securely attach the ESC to your drone frame. Ensure the ESC is isolated from carbon fiber or other conductive materials to prevent short circuits.
2. Power Connection: Solder the thick red wire to the positive (+) battery pad and the thick black wire to the negative (-) battery pad on the ESC. Ensure strong, clean solder joints.
3. Motor Connections: Solder the three motor wires from each of your four brushless motors to the corresponding M1, M2, M3, M4 pads on the ESC. The order of these wires determines motor direction, which can be reversed in software if needed.

5.2 Signal and Telemetry Connection

4. Signal Cable: Connect the included signal cable from the ESC to your flight controller. This cable typically includes individual signal wires for each motor (M1-M4), a ground wire, and potentially a current sensor wire. Match these to the corresponding pins on your flight controller.
5. Current Sensor: If your flight controller supports it, connect the current sensor wire from the ESC to the current sensor input on your flight controller for real-time current monitoring.
6. Capacitor Installation: Solder the electrolytic capacitor to the main battery pads (positive to positive, negative to negative) on the ESC. This helps filter electrical noise and protect the ESC from voltage spikes.

5.3 Software Configuration

7. Flight Controller Firmware: Ensure your flight controller is running compatible firmware (e.g., Betaflight, ArduPilot) and is configured for a 4-in-1 ESC.
8. BLHELI_S Suite: Connect your flight controller to a computer and use the BLHELI_S configurator software to flash the latest firmware (BLS J_H_30_REV16_7 or newer) to your ESC. Configure motor directions, DShot protocol, and other settings as required for your setup.
9. Motor Testing: Carefully test motor spin direction and responsiveness in the flight controller configurator before attempting flight.

6. Operating Instructions

Once installed and configured, the ESC operates in conjunction with your flight controller to control the speed and direction of your brushless motors.

• Power On: Connect your LiPo battery to the main power lead. The ESC will typically emit a series of beeps indicating successful initialization.
• Arming: Arm your flight controller using your radio transmitter. The motors will be ready to spin.
• Throttle Control: Use your radio transmitter's throttle stick to control motor speed. The ESC translates the flight controller's commands into precise motor output.
• Disarming: Disarm your flight controller after flight to stop the motors and prevent accidental spin-up.

7. Maintenance

• Regular Inspection: Periodically inspect the ESC for any signs of physical damage, loose solder joints, or burnt components.
• Cleaning: Keep the ESC clean from dust, dirt, and debris. Use a soft brush or compressed air. Avoid using liquids directly on the board.
• Firmware Updates: Check for new BLHELI_S firmware versions periodically. Updating firmware can improve performance, add features, or fix bugs.
• Heat Management: Ensure adequate airflow around the ESC, especially during aggressive flying, to prevent thermal throttling or damage.

8. Troubleshooting

• Motor Not Spinning:
  • Check all motor wire solder joints for continuity.
  • Verify motor direction and settings in BLHELI_S configurator.
  • Ensure the flight controller is armed and sending correct signals.
  • Inspect for bent motor shafts or obstructions.
• ESC Overheating:
  • Ensure proper ventilation and airflow.
  • Check for motor issues (e.g., binding, shorted windings) that could draw excessive current.
  • Verify propeller size and pitch are appropriate for your motors and ESC.
• Erratic Motor Behavior:
  • Check for electrical noise. Ensure the capacitor is properly installed.
  • Verify signal wire connections are secure and free from interference.
  • Recalibrate ESCs if using analog protocols (Oneshot/PWM).
• No Power to ESC:
  • Check main battery connection and polarity.
  • Inspect power wire solder joints.
  • Test battery voltage.

9. User Tips

• Soldering Quality: Always strive for clean, strong solder joints. Poor soldering is a common cause of issues in FPV electronics.
• Vibration Isolation: Use the provided silicone grommets to isolate the ESC from frame vibrations, which can affect performance and component longevity.
• Conformal Coating: For added protection against moisture and dust, consider applying a conformal coating to the ESC board, especially if flying in damp conditions.
• Backup Configuration: Always save your BLHELI_S and flight controller configurations as a backup before making significant changes or updates.

10. Warranty and Support

For technical support, troubleshooting assistance, or warranty inquiries, please contact the seller or manufacturer directly. Keep your proof of purchase for any warranty claims.

The manufacturer, Mitoot, is committed to providing quality products. Please refer to their official channels for the most up-to-date support information.