9IMOD AM32 80A Brushless ESC User Manual

Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your 9IMOD AM32 80A Brushless Electronic Speed Controller (ESC). This ESC is pre-installed with AM32 custom firmware, optimized for smooth and quiet operation in RC crawler vehicles, and suitable for various 1/8 scale or smaller cars. It features a built-in adjustable quad-group voltage BEC with a maximum current of 10A for high-torque servo applications, and an e-Switch for enhanced durability. All wires are pre-soldered for convenience.

Features

• AM32 custom firmware
• Sine wave start for smooth motor operation at ultra-low speeds
• Variable driving frequency
• Low voltage, runaway, and rotor lock protection
• High-performance 32-bit MCU
• Durable and waterproof E-switch
• Built-in adjustable quad-group voltage BEC (Max 10A, Output 5.2/6.0/7.4/8.2V)
• Firmware upgradeable via Betaflight pass-through, single-wire serial, or Arduino
• Supports Servo PWM, Dshot (300,600) motor protocol
• Bi-directional rotation
• KISS standard ESC telemetry
• Variable PWM frequency
• Sine start mode, designed to accelerate large motors

Specifications

Setup

Component Identification

Wiring Connections

Connect the ESC to your RC vehicle components as follows:

1. Battery Connection: Connect your 2-6S Lipo battery to the battery plug (typically XT60 or similar, not included with ESC).
2. Motor Connection: Connect the three motor wires from the ESC to your brushless motor. Ensure correct phase connection for proper rotation.
3. Receiver Connection: Plug the receiver cable from the ESC into the throttle channel of your RC receiver.
4. Power Switch: Connect the electronic power switch to the designated port on the ESC.
5. USBLink (Optional): For configuration or firmware upgrade, connect the USBLink module to the ESC signal plug and then to a computer via a USB Type-C cable.

Important Note: The remote control must be adjusted to the neutral position before connecting the ESC to ensure proper initialization.

BEC Output Voltage Adjustment

The BEC output voltage can be adjusted using the DIP switches on the ESC. Refer to the table below for settings:

Operating Instructions

General Parameter Settings

The ESC comes with default settings optimized for crawler vehicles. You can adjust various parameters using the configuration tool. Refer to the image below for a detailed table of common settings and their descriptions:

Recommended Setting Parameters

For optimal performance, consider the following recommended parameters based on your battery type and motor specifications:

For 3S-4S Batteries:

For 6S Batteries:

Important Operating Notes:

• If using a 6S Lithium battery, do not set the sine power value to 10, as this will cause both the motor and the ESC to become very hot.
• When using 3-4S Lithium batteries, set the sine power value based on the direct weight of the vehicle. A value around 6-8 is generally appropriate.

Firmware Upgrade and Configuration (USBLink)

The USBLink module allows you to connect the ESC to a computer for configuration and firmware upgrades. This process requires installing a VCP driver and using the Multi ESC Config Tool.

Required Downloads:

• Configuration Tool: Download Multi ESC Config Tool
• CH340 Driver: Download CH340 Driver

Upgrade Steps:

1. Connect the ESC to the tuner (USBLink module).
2. Open the ESC Configuration Tool.
3. Check the "Direct Connect" box when using an Arduino PC Link. (Do not check this box if using the flight controller interface).
4. Select your Arduino port.
5. Click the "Connect" button.
6. Read the ESC settings using the M1 button.
7. Now, you can adjust settings, change tabs, upload new firmware, or load the default EEPROM settings.
8. After making adjustments, save your settings.
9. To carefully check if your settings have been applied, close the connection, then reconnect and press M1 again.

Maintenance

Proper maintenance ensures the longevity and optimal performance of your ESC:

• Cleaning: Regularly clean the ESC to remove dirt, dust, and debris. Use a soft brush or compressed air. Avoid using liquids directly on the ESC.
• Moisture Protection: Although the e-Switch is waterproof, avoid prolonged exposure to water or extreme humidity. Ensure all connections are dry before operation.
• Connection Checks: Periodically inspect all wiring and connectors for signs of wear, corrosion, or loose connections. Secure any loose parts.
• Storage: Store the ESC in a cool, dry place away from direct sunlight and extreme temperatures.

Troubleshooting

If you encounter issues with your ESC, consider the following common troubleshooting steps:

• No Power:
  • Check battery connection and ensure it is fully charged.
  • Verify the electronic switch is in the "ON" position.
  • Inspect all power wires for damage.
• Motor Not Responding/Erratic Behavior:
  • Ensure the remote control is in neutral position before powering on the ESC.
  • Check motor wire connections for proper phasing.
  • Verify receiver connection to the throttle channel.
  • Recalibrate the ESC with your remote control if necessary.
  • Check for any obstructions in the motor or drivetrain.
• Overheating:
  • Ensure adequate airflow around the ESC.
  • Check motor and battery specifications to ensure they are compatible with the ESC's ratings.
  • Review ESC parameter settings, especially timing and sine power values, to ensure they are appropriate for your setup.
• BEC Output Issues:
  • Verify DIP switch settings for the desired voltage output.
  • Check connections to servos or other accessories powered by the BEC.

User Tips

• Initial Setup: Always ensure your remote control's throttle trim is at neutral before connecting the battery to the ESC. This prevents unexpected motor startup.
• Battery Compatibility: Pay close attention to the recommended sine power settings for 3-4S vs. 6S LiPo batteries to prevent damage.
• Firmware Updates: Regularly check for and apply firmware updates using the USBLink module to benefit from performance improvements and bug fixes.
• Waterproofing: While the e-Switch is waterproof, it's good practice to add additional waterproofing measures (e.g., conformal coating) to the main ESC board if operating frequently in wet conditions.

Warranty and Support

For warranty information, technical support, or service inquiries, please contact the manufacturer or your point of purchase. Keep your purchase receipt as proof of purchase.

⚠ WARNING: This product can expose you to chemicals including phthalates (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.