EZRUN Mini28 ESC Instruction Manual

Introduction

Thank you for choosing the Hobbywing EZRUN Mini28 Electronic Speed Controller (ESC). This high-performance sensored brushless ESC is designed to enhance your experience with Hobbywing brushless power systems in 1/28th and 1/27th scale vehicles. Please read this manual thoroughly before operation to ensure proper use and to maximize the lifespan of your product.

Safety Precautions

Adhering to these safety guidelines is crucial for preventing damage to your equipment and ensuring personal safety:

• Insulation: To avoid short circuits, ensure that all wires and connections are well insulated before connecting the ESC to related devices.
• Secure Connections: Ensure all devices are well connected to prevent poor connections and avoid damage to your electronic components.
• Power Configuration: Read through the manuals of all power devices and chassis components. Ensure the power configuration is rational and suitable for this unit before use.
• Soldering: Use a soldering iron with a power of at least 60W to solder all input and output wires and connectors.
• Temperature Monitoring: Stop immediate usage if the casing of the ESC exceeds 90°C (194°F), as this may cause damage to both the ESC and motor. Hobbywing recommends setting the "ESC Thermal Protection" to 105°C (221°F) (referring to the internal temperature of the ESC).
• Battery Disconnection: Always disconnect the batteries from the ESC immediately after use. The ESC continuously consumes current if connected to the batteries, even when turned off. Prolonged connection can lead to complete battery discharge and potential damage to the battery or ESC, which will not be covered under warranty.

Product Features

• Brushless Sensored Electronic Speed Controller (SKU: 30101300).
• Continuous/Peak Current: 30A/80A.
• Input Voltage: 2S LiPo.
• BEC Output: 6V/7.4V @ Max 3.5A.
• Compact Size: 22.7x14.2x11.8mm.
• Lightweight: 5g (without wires).
• Ideal for 1626 Size Motors in 1/28th and 1/27th scale vehicles.
• Programmable via LCD G2 Program Box, OTA Programmer, or Throttle Wire.

Product Overview

This image shows the compact design of the EZRUN Mini28 ESC, highlighting its small form factor and the attached power and signal wires. The main body of the ESC is black with minimal branding visible.

A closer, angled view of the EZRUN Mini28 ESC, clearly displaying the "EZRUN MINI28", "2S LiPo BEC 6V/7.4V", "CE FC RoHS", and "MADE IN CHINA" labels on its top surface. The solder pads for motor connections are also visible.

This image provides a perspective view, highlighting the programming (PRG) port and throttle (TH) wire connection point. The motor phase output labels (A, B, C) are also clearly visible on the side of the ESC.

An elevated view of the EZRUN Mini28 ESC, showcasing its compact dimensions relative to the attached wires. This angle emphasizes the small footprint of the unit, making it suitable for miniature RC applications.

An overhead shot of the EZRUN Mini28 ESC, providing a clear view of the entire unit including the length of the input (red/black) and output (three black) wires. The main body of the ESC is centered in the frame.

Specifications

Setup Guide

Proper setup is essential for optimal performance and longevity of your EZRUN Mini28 ESC. Follow these steps carefully:

1. Mounting the ESC: Securely mount the ESC in your vehicle chassis using double-sided tape or a suitable mounting solution. Ensure it is in a location with adequate airflow for cooling.
2. Motor Connection: Connect the three motor phase wires (A, B, C) from the ESC to the corresponding motor terminals. Ensure correct polarity and secure soldering if necessary.
3. Battery Connection: Connect the ESC's power input wires (red for positive, black for negative) to your 2S LiPo battery connector. Double-check polarity before making the final connection.
4. Receiver Connection: Plug the ESC's throttle wire into the throttle channel (usually Channel 2) of your RC receiver.
5. Sensor Wire Connection: If using a sensored motor, connect the sensor wire from the motor to the sensor port on the ESC. Ensure the connector is fully seated and oriented correctly.
6. Calibration: Perform throttle range calibration with your radio transmitter according to the ESC's specific calibration procedure (refer to Hobbywing's general ESC calibration guide if not detailed here). This ensures the ESC recognizes the full throttle and brake range of your transmitter.
7. Programming (Optional): Use a Hobbywing LCD G2 Program Box, OTA Programmer, or throttle wire method to adjust ESC parameters such as thermal protection, drag brake, punch, etc., to suit your driving style and vehicle.

Operating Instructions

Once the EZRUN Mini28 ESC is properly installed and calibrated, you can begin operation:

1. Power On: Ensure your transmitter is turned on first. Then, connect the battery to the ESC. The ESC will emit a series of beeps indicating successful power-up and cell count detection.
2. Initial Check: Before driving, gently test the throttle and steering to ensure all controls respond correctly.
3. Driving: Operate your RC vehicle as desired. Pay attention to the ESC and motor temperatures during operation, especially during extended runs or in demanding conditions.
4. Thermal Protection: The ESC has built-in thermal protection. If the ESC reaches its set temperature limit (default 105°C / 221°F recommended), it will reduce power or shut down to prevent damage. Allow it to cool down before resuming operation.
5. Power Off: Always disconnect the battery from the ESC immediately after use. Then, turn off your radio transmitter.

Maintenance

Regular maintenance helps ensure the longevity and reliable performance of your EZRUN Mini28 ESC:

• Cleaning: After each use, especially in dusty or dirty environments, gently clean the ESC with a soft brush or compressed air to remove debris. Avoid using liquids.
• Inspections: Periodically inspect all wires and connectors for signs of wear, fraying, or corrosion. Ensure all solder joints are secure.
• Temperature Monitoring: Continuously monitor the ESC and motor temperatures during operation. Excessive heat can indicate an issue with gearing, motor, or ESC settings.
• Storage: Store the ESC in a clean, dry place away from direct sunlight and extreme temperatures. Always disconnect batteries before storage.

Troubleshooting

This section provides solutions to common issues you might encounter with your EZRUN Mini28 ESC:

Warranty and Support

Hobbywing products are manufactured to the highest quality standards. For specific warranty terms and conditions, please refer to the official Hobbywing website or contact your local distributor. Please note that damage resulting from improper use, unauthorized modifications, or failure to follow the instructions in this manual (e.g., continuous battery connection) may void your warranty.

For technical support, troubleshooting assistance, or service inquiries, please visit the Hobbywing official website or contact their customer service department. Have your product model number (30101300) and purchase information ready when contacting support.