1. Introduction
The Miuzei MG90S is a compact and lightweight micro servo motor featuring metal gears for enhanced durability and performance. It is suitable for a wide range of applications including remote-controlled vehicles, robotics, and various electronic projects requiring precise angular control.
2. Package Contents
Verify that all components are present in your package:
- MG90S Micro Servo Motor(s)
- Assorted Servo Horns (e.g., cross, star, bar types)
- Mounting Screws for Servo Horns and Servo
Image: Miuzei MG90S Micro Servo Motor with various servo horns and mounting hardware.
3. Setup and Connection
Follow these steps to properly set up and connect your MG90S servo motor:
- Identify Servo Wires: The MG90S servo typically has three wires:
- Brown/Dark Wire: Ground (GND)
- Red Wire: Power (VCC, 4.8V-6V)
- Orange/Yellow Wire: Signal (PWM input)
- Connect to Controller: Connect the servo wires to your microcontroller (e.g., Arduino) or RC receiver according to the pinout diagram of your specific board. Ensure correct polarity for power and ground connections to prevent damage.
- Attach Servo Horn: Select the appropriate servo horn for your application and securely attach it to the servo's output shaft using the provided screw. Ensure the servo is centered (usually by sending a 1500µs pulse) before attaching the horn to ensure proper alignment.
Image: Detailed parameters and a color-coded wiring diagram for the MG90S servo motor, showing grey for negative, red for positive, and yellow for signal.
Video: An official Miuzei video demonstrating the MG90S Micro Servo Motor in an RC car application, showcasing its movement and functionality.
4. Operating Instructions
The MG90S servo operates by receiving Pulse Width Modulation (PWM) signals from a microcontroller or RC receiver. The width of the pulse determines the angular position of the servo arm.
- Angular Range: The servo has a rotation angle of approximately 180 degrees.
- Pulse Width Control: Typically, a pulse width of 1000µs corresponds to 0 degrees, 1500µs to 90 degrees (neutral position), and 2000µs to 180 degrees. These values may vary slightly depending on the specific servo and controller.
- Power Supply: Ensure the servo is powered within its specified operating voltage range of 4.8V to 6V. Inadequate power can lead to erratic behavior or reduced torque.
Image: Illustration of the MG90S servo's 180-degree rotation capability, showing various angular positions.
Image: Examples of the MG90S servo's application in robots, manipulators, ship models, cars, aircraft, and DIY projects.
5. Maintenance
Proper maintenance ensures the longevity and optimal performance of your MG90S servo motor:
- Keep Clean: Regularly clean the servo to prevent dust, dirt, or debris from entering the internal mechanism, especially around the output shaft.
- Avoid Overloading: Do not apply excessive force or torque beyond the servo's rated stall torque. This can damage the gears or motor.
- Check Connections: Periodically inspect all wiring connections for looseness or damage.
- Storage: Store the servo in a dry, clean environment away from extreme temperatures.
Image: An exploded view of the MG90S servo, showing its internal metal gear structure for durability and precision.
6. Troubleshooting
If you encounter issues with your MG90S servo, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Servo does not move | Incorrect wiring, insufficient power, no signal, damaged servo. | Check all connections (power, ground, signal). Ensure power supply is within 4.8V-6V. Verify signal generation from controller. Test with a known working servo or controller. |
| Erratic or jittery movement | Noisy power supply, signal interference, loose connections, servo overload. | Ensure a stable power supply. Check for signal interference. Secure all connections. Reduce load on the servo. |
| Weak or no torque | Low voltage, excessive load, internal gear damage. | Verify power supply voltage. Reduce the mechanical load on the servo. If gears are damaged, replacement may be necessary. |
| Unusual noise during operation | Gear wear, foreign objects, servo overload. | Inspect gears for wear or damage. Check for any obstructions. Ensure the servo is not continuously stalled or overloaded. |
7. Specifications
Key technical specifications for the Miuzei MG90S Micro Servo Motor:
| Feature | Specification |
|---|---|
| Model | MG90S |
| Weight | 9 Grams (0.317 ounces) |
| Dimensions | 22.4 x 12.1 x 22.8 mm (0.88 x 0.49 x 0.9 inches) |
| Operating Voltage | 4.8V - 6V |
| Stall Torque (4.8V) | 1.8 kg/cm |
| Stall Torque (6V) | 2.0 kg/cm |
| Operating Speed (4.8V) | 0.11 seconds/60 degrees |
| Operating Speed (6V) | 0.08 seconds/60 degrees |
| Rotation Angle | 180 degrees (when 500-2500µs pulse) |
| Gear Type | Metal Gear |
| Dead Zone Width | 5 Microseconds |
| Cable Length | 250 mm / 9.84 inches |
Image: Technical drawing showing the precise dimensions of the MG90S servo motor in millimeters and inches.
8. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Miuzei customer service directly. Keep your proof of purchase for any warranty claims.
