SEQURE 28120 Brushless ESC Instruction Manual

1. Introduction

Thank you for purchasing the SEQURE 28120 Brushless Electronic Speed Controller (ESC). This manual provides detailed instructions for the proper use, setup, and maintenance of your ESC. Please read these instructions carefully before use and strictly adhere to all specified operating procedures. Users should possess a foundational understanding of electronics and proficient soldering skills. Incorrect usage may lead to personal injury and equipment damage. We do not assume any liability for issues arising from the use of this product or unauthorized modifications, including but not limited to incidental or indirect losses.

2. Product Features

• High-Performance Processor: Equipped with a 32-bit high-performance STM32G071 processor, operating at up to 64MHz, supporting a maximum motor PWM frequency of 128KHz.
• Efficient Heat Dissipation: Utilizes high-power MOSFETs combined with a CNC metal radiator for effective heat dissipation under high current loads, ensuring stable and continuous operation.

  

• Versatile Motion Modes: Supports multiple motor motion modes, including unidirectional, bidirectional, and braked operation.
• Comprehensive Protections: Features multiple protection mechanisms such as low voltage protection, temperature protection, locked rotor protection, and current protection.
• Wide Signal Protocol Support: Automatically detects throttle signals upon power-on, supporting all Dshot signals, as well as PWM, Oneshot, and Multishot protocols.
• Visual Programming Tool: A visual programming parameter adjustment tool allows for settings such as motor timing, throttle calibration, current detection, motor steering, and telemetry signal configuration.
• Customizable RGB LED: Onboard RGB LED color lights offer customizable color settings.
• Adjustable BEC Output:
  • 4A BEC Version: Supports adjustable outputs of 5V/4A, 6V/4A, 7.2V/4A, 8.2V/4A, and 12V/3A.
  • 10A BEC Version: Supports adjustable outputs of 5V/10A, 6V/10A, 7.2V/10A, 8.2V/10A, and 12V/10A.
  This allows direct power supply to external devices like receivers and servos, enhancing the ESC's application flexibility.
• Broad Application Scenarios: Widely applicable in multi-axis drones, fixed-wing aircraft models, multi-rotor drones, plant protection machines, model ships, RC model cars, and rock crawlers.

  

3. Specifications

Dimensions and Weight

• 28120 (AM32/BLHeli_32) without BEC:
  • Length (L): 50mm
  • Width (W): 20mm
  • Height (H): 17mm
  • Weight: 21.6g

  

• 28120 (AM32/BLHeli_32) with 14AWG Power Cable:
  • Length (L): 50mm
  • Width (W): 20mm
  • Height (H): 20.5mm
  • Weight: 43.7g

4. Setup and Installation

Wiring Diagram

The following diagram illustrates the correct wiring for the SEQURE 28120 ESC, both for versions without a BEC and those with an integrated BEC. Ensure all connections are secure and correctly polarized before applying power.

• Motor Connections: Connect the three motor wires to the A, B, and C terminals on the ESC.
• Power Input: Connect your DC 7V-33.6V (2-8S Lipo) battery to the + (positive) and - (negative) terminals. Pay close attention to polarity.
• Signal Input (S): Connect the signal wire from your flight controller or receiver to the 'S' pin.
• Telemetry Signal (T): Connect the telemetry wire to the 'T' pin for data feedback.
• Ground (GND): Connect the ground wire to the 'GND' pin.
• BEC Voltage Output (V) (for +BEC versions): This output provides regulated power for external devices.

BEC Settings (If Applicable)

The BEC output voltage can be adjusted using jumpers on the ESC. Refer to the diagrams below for the correct jumper configurations for your specific BEC version.

Carefully configure the jumpers according to the desired voltage output for your external devices. Incorrect jumper settings may damage connected components.

5. Operation and Programming

The SEQURE 28120 ESC supports visual programming and parameter adjustment through dedicated software tools. This allows for fine-tuning of various operational characteristics.

Firmware and Software

• The ESC supports BLHeli_32, AM32, and ESCape32 firmware.
• For BLHeli_32 firmware, use the BLHeli Suite 32 software.
• For AM32 firmware, use the SEQURE PRO software.
• Important Note: All BL32 firmware provided by this store are pre-release versions. It is recommended to contact customer service or download the corresponding ESC configuration tool from the official SEQURE website for the latest and most stable versions.

Adjustable Parameters

Using the appropriate software, you can adjust parameters such as:

• Motor Timing
• Throttle Calibration
• Current Detection
• Motor Steering
• Telemetry Signal settings
• RGB LED Color settings
• And other advanced settings specific to the firmware.

6. Maintenance

• Keep Clean: Regularly clean the ESC to prevent dust and debris buildup, especially around the heatsink, which can impede cooling.
• Inspect Connections: Periodically check all solder joints and wire connections for looseness or damage. Re-solder or replace as necessary.
• Heat Management: Ensure adequate airflow around the ESC during operation, especially in enclosed spaces, to prevent overheating.
• Storage: Store the ESC in a dry, cool environment away from direct sunlight and extreme temperatures.

7. Troubleshooting

• Motor Not Spinning:
  • Check all power connections to the ESC and motor.
  • Verify the signal cable from the flight controller/receiver is correctly connected.
  • Ensure the battery is charged and within the specified voltage range (2-8S Lipo).
  • Recalibrate the throttle range.
• Erratic Motor Behavior:
  • Check for any loose connections or damaged wires.
  • Ensure the ESC firmware is up-to-date and correctly configured.
  • Check for potential electromagnetic interference (EMI) from other components.
  • Verify motor timing settings are appropriate for your motor.
• ESC Overheating:
  • Ensure the ESC has sufficient airflow for cooling.
  • Check if the motor is drawing excessive current (e.g., due to propeller size, motor KV, or mechanical binding).
  • Verify that the continuous and maximum current ratings of the ESC are not being exceeded.
• No Telemetry Data:
  • Ensure the telemetry signal wire is correctly connected to your flight controller.
  • Verify telemetry settings are enabled and configured in the ESC programming software.

8. User Tips

• Polarity Check: Always double-check the positive and negative polarity of your power connections before applying power to prevent irreversible damage to the ESC and other components.
• Firmware Updates: For optimal performance and access to the latest features, regularly check the official SEQURE website for firmware updates and corresponding configuration tools.
• Voltage Range: Confirm that your battery's voltage (2-8S Lipo, DC 7V-33.6V) is within the ESC's specified input range to avoid damage.
• BEC Utilization: Take advantage of the adjustable BEC output to power your receiver, servos, or other low-power accessories directly from the ESC, simplifying your wiring and power distribution. Remember to set the correct voltage using the onboard jumpers.
• Heat Management: While the ESC has a metal radiator, ensure it's not enclosed in a way that restricts airflow, especially in high-current applications, to maintain optimal operating temperatures.

9. Warranty and Support

Warranty Terms

• For performance faults caused by non-human factors within 3 months from the date of purchase, free repair and maintenance service is provided.
• After 3 months, no labor fee will be charged for repairs, but the cost of replacement parts must be covered by the user.
• The warranty does not cover man-made damage, faults caused by self-disassembly, improper use, or consumables such as soldering tips.

Contact Information

For technical support, warranty claims, or further inquiries, please contact:

• Email: info@sequremall.com
• Website: www.sequremall.com

10. Safety Precautions

• Firmware Integrity: Do not flash unofficial firmware to the ESC, as this may cause irreparable damage.
• Operating Limits: Always operate the ESC within its specified voltage and current ranges to prevent damage and ensure safety.
• Polarity Verification: Before connecting power, meticulously check and confirm that the positive and negative polarities are correct.
• Regulatory Compliance: Use the product in compliance with all local regulations and ensure safe operating practices.
• Accessory Safety: Use only accessories that meet safety standards and keep the product and its components out of reach of children.