1. Introduction
The 9IMOD AM32 Brushless Electronic Speed Controller (ESC) is optimized for RC crawler vehicles, providing very smooth and quiet operation. Available in 30A, 40A, and 80A variants, it is designed for various scales of RC cars and boats. The included USB Link module allows for easy configuration and firmware upgrades.
This manual provides detailed instructions for setting up, operating, and maintaining your AM32 Brushless ESC and USB Link. Please read it thoroughly before use to ensure proper functionality and safety.
2. Features
- AM32 custom firmware for optimized performance.
- Sine wave start for smooth motor operation at ultra-low speeds.
- Variable driving frequency.
- Pre-soldered wires for 30A and 80A ESCs; 40A ESC allows DIY battery and motor plug customization.
- Integrated protection features: low voltage, runaway, and rotor lock protection.
- USB Link module for easy configuration and firmware updates.
Note: The remote control must be adjusted to the neutral position for the ESC to connect properly.
3. Specifications
General Features
- Optimized for crawler vehicles.
- Smooth and rapid start with linear throttle response.
- Suitable for various vehicle types and flight controllers.
80A ESC Specifications
| Parameter | Value |
|---|---|
| Brand | 9IMOD |
| Battery | 2~6S Lipo |
| Continuous Current | 80A |
| BEC Output | Max 10A, 5.2/6.0/7.4/8.2V (adjustable via DIP switch) |
| Electronic Switch | Supported |
| Firmware | AM32 (for AT32 ARM processors) |
| Suitable For | 1:8 / 1:10 Scale Cars (Axial SCX10, Traxxas TRX-4, TRX-6 Crawler Car) |
40A ESC Specifications
| Parameter | Value |
|---|---|
| Brand | 9IMOD |
| Battery | 2~4S Lipo |
| Continuous Current | 40A |
| Suitable For | RC boats, Cars smaller than 1:18 (Current not exceeding 30A) |
| Motor | 28 Series Motors (e.g., 2810, 2812, 2806) |
| Dimensions | 277 x 13 x 9mm |
| Weight | 16.4g |
30A ESC Specifications
| Parameter | Value |
|---|---|
| Brand | 9IMOD |
| Battery | 2~4S Lipo |
| BEC Output | 6V@2A |
| Continuous Current | 30A |
| Momentary Current (10s) | 80A |
| Motor | 1224/1621/2204 Brushless Motor |
| Suitable For | 1:18 / 1:24 Crawler Car (Axial SCX24, TRX4M) |
| Dimensions | 285 x 19 x 9mm |
| Weight | 15g |
4. Setup and Wiring
Proper connection of your ESC is crucial for safe and optimal performance. Follow these diagrams carefully.
4.1. General ESC Connections
Ensure all connections are secure and observe correct polarity to prevent damage to the ESC or other components.
4.2. BEC Output Voltage Adjustment (80A ESC)
For the 80A ESC, the BEC output voltage can be adjusted using DIP switches. Refer to the diagram and table below for settings.
| DIP Switch 1 | DIP Switch 2 | BEC Output Voltage |
|---|---|---|
| OFF | OFF | 5.2V |
| OFF | ON | 6.0V |
| ON | OFF | 7.4V |
| ON | ON | 8.2V |
4.3. ESC Plug Types (30A ESC)
4.4. 40A ESC Connection Points
5. Operating and Configuration
The AM32 ESCs can be configured using the Multi ESC Config Tool via the USB Link module.
5.1. Connecting the USB Link
- First, check the appropriate box for 'Direct Connect'.
- Second, select the serial port number where the USB Link (tuner) is located.
- Third, click 'Connect' to establish a connection with the ESC.
5.2. Recommended Setting Parameters
The recommended parameters for the ESC vary based on the battery type. Always set the motor KV value and the number of poles according to your motor's specifications.
For 6S Batteries:
For 3S-4S Batteries:
5.3. Parameter Settings Table
This table provides a detailed overview of various ESC settings and their descriptions.
Pay special attention to a few points here:
- If using a 6S lithium battery, do not set the sine power value to 10, as this will cause 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, usually around 6-8 is appropriate.
6. Firmware Upgrade
To ensure optimal performance and access to the latest features, it is recommended to keep your ESC firmware updated.
- Launch the Charger Master software on your computer. It will automatically detect the connected device.
- If detected, click to check for firmware updates.
- If a new version is available, an 'Update' button will appear.
- Click 'Update' and wait for the process to complete.
WARNING! DO NOT power off or exit the program during the upgrade process!
7. Troubleshooting
If you encounter issues with your ESC, refer to the following common problems and solutions.
Common Issues and Solutions
| Symptom | Possible Cause | Solution |
|---|---|---|
| ESC not connecting to remote | Remote not in neutral position. | Adjust remote to neutral position before connecting ESC. |
| Motor/ESC overheating with 6S battery | Sine power value set too high (e.g., 10). | Reduce sine power value (e.g., to 6-8) for 6S batteries. |
| Difficulty with 40A ESC battery/motor plugs | 40A ESC requires DIY plugs. | Ensure proper DIY soldering and connection of battery and motor plugs. |
8. Maintenance
To ensure the longevity and reliable performance of your 9IMOD AM32 Brushless ESC, follow these general maintenance guidelines:
- Keep Clean: Regularly clean the ESC and its connections to prevent dust, dirt, or moisture buildup, which can cause short circuits or overheating. Use a soft brush or compressed air.
- Inspect Connections: Periodically check all wiring and connectors for signs of wear, fraying, or corrosion. Ensure all plugs are securely seated.
- Avoid Overheating: Monitor ESC temperature during operation. If it consistently runs hot, consider adjusting settings (e.g., sine power value), improving airflow, or using a lower current draw.
- Proper Storage: When not in use, store the ESC in a dry, cool place away from direct sunlight and extreme temperatures.
- Firmware Updates: Keep the firmware updated to benefit from performance improvements and bug fixes.
9. User Tips
- For optimal low-speed crawling, experiment with the 'Sine Mode Power' and 'Running Brake Level' settings in the configuration tool.
- When customizing the 40A ESC, ensure your DIY battery and motor plugs are rated for the continuous and momentary current draw to prevent component failure.
- Always double-check battery polarity before connecting to avoid damage to the ESC.
10. Package Contents
The following items are included in your 9IMOD AM32 Brushless ESC package:
- 1x 9IMOD AM32 Brushless ESC (30A, 40A, or 80A variant as purchased)
- 1x USBLink Module
11. Warranty and Support
This product is guaranteed to be free of manufacturing and assembly defects for a period of one year from the time of purchase. The warranty covers material or operational defects present at the time of purchase. During this period, defective products will be repaired or replaced free of service charge.
This warranty is not valid for any damage resulting from misuse, modification, or failure to follow the procedures outlined in this manual.
For any questions not covered in this manual, please contact your dealer or the manufacturer's support channels.