1. Introduction
The ZTW Mantis Slim G2 15A ESC is a high-performance 32-bit bidirectional electronic speed controller designed for RC airplanes, particularly suitable for F3P 3D/4D flying. It features advanced technology for smooth operation, efficient power delivery, and multiple protection mechanisms to ensure reliable performance. This manual provides essential information for the proper setup, operation, and maintenance of your ESC.
2. Key Features
- New generation MOSFET craft for low heat generation, high current withstand, and reliability.
- High-performance 32-bit microprocessor for stronger computing ability and faster running speed.
- Super smooth start-up and accurate throttle linearity.
- Miniature size and lightweight design for higher driving efficiency and energy saving.
- Supports two modes: "Forward Only" and "Forward and Reverse" for versatile 3D/4D flying.
- Integrated SBEC with continuous 6V/3A output and peak 3.5A current for strong servo power.
- Multiple protection features: start-up, over-heat, low-voltage cutoff, signal loss, and phase loss.
- Compatible with high RPM motors and most motors available in the market.
- Flexible programming options via transmitter, Phone App (with ZTW Bluetooth Module), or LCD program card.
3. Specifications
| Feature | Specification |
|---|---|
| Model | Mantis Slim G2 15 |
| Continuous/Burst Current | 15A/30A |
| Battery Cell (NiXX/LiPo) | 5-12NC / 2-4S LiPo |
| Weight | 9g |
| BEC Output | 6V/3A (continuous), 3.5A (peak) |
| Dimensions (L*W*H) | 25.5*15*5.2mm |
| Battery Plug | JST female plug |
| Motor Plug | 2mm gold plug |
| Material | Composite Material |
| For Vehicle Type | Airplanes |
| Recommended Age | 14+ years |
4. Setup
4.1 Wiring Diagram
Ensure all connections are secure and correctly polarized before powering on the ESC. Refer to the images below for visual guidance.
- Battery Connection: Connect your LiPo battery (2-4S) to the JST female plug (red and black wires). Ensure correct polarity.
- Motor Connection: Connect the three black wires from the ESC to your brushless motor. The order of these wires may affect motor rotation; adjust if necessary during initial testing.
- Receiver/Servo Connection: Connect the three-wire servo connector (white, red, black) to the throttle channel of your RC receiver. The white wire is signal, red is positive (+), and black is negative (-).
4.2 Initial Calibration (Throttle Range)
It is recommended to calibrate the throttle range of the ESC with your transmitter for optimal performance. Consult your transmitter's manual for specific throttle calibration procedures. Generally, this involves:
- Turn on your transmitter and set the throttle stick to maximum.
- Connect the battery to the ESC.
- Listen for a series of beeps.
- Move the throttle stick to the minimum position.
- Listen for another series of beeps, indicating successful calibration.
4.3 Programming Options
The ESC supports various programming methods:
- Transmitter: Basic programming can be done through your transmitter stick movements and listening to beep codes.
- Phone App: Requires an optional ZTW Bluetooth Module for wireless programming via a smartphone app.
- LCD Program Card: An optional LCD Program Card can be used for easier and more visual parameter adjustments.
5. Operating Instructions
5.1 Normal Startup Procedure
The ESC has different startup procedures depending on the selected mode (Forward Only or Forward and Reverse).
- Forward Only Mode:
- Turn on the transmitter, move the throttle stick to the bottom position.
- Connect the battery pack to the ESC and wait for about 2 seconds.
- When the motor emits "Beep----Beep", the self-test is finished, and the ESC is ready to work.
- The motor will beep several sounds, indicating the amount of battery cells.
- Forward and Reverse Mode:
- Turn on the transmitter, move the throttle stick to the neutral position.
- Connect the battery pack to the ESC and wait for about 2 seconds.
- When the motor emits "Beep----Beep", the self-test is finished, and the ESC is ready to work.
- The motor will beep several sounds, indicating the amount of battery cells.
5.2 Programming Items
The following parameters can be programmed on your ESC. Default settings are typically in bold.
- Brake Type: OFF / Soft / Mid / Hard
- Timing: Auto / Low / Mid / High (5°/15°/25°)
- Motor Rotation: CW / CCW
- SR function (Synchronous Rectification): ON / OFF
The synchronous rectification function makes the ESC operate with higher driving efficiency and more energy-saving. - Battery cells: Auto / 2S / 3S / 4S
- Low Voltage Cutoff Threshold: OFF / NiMH 50% / NiMH 60% / 3.0V / 3.2V / 3.4V / 3.6V
Example: For 3 lithium batteries and a 3.0V setting, the low voltage protection threshold is 3 * 3.0V = 9.0V. - Low Voltage Cutoff Type: Reduce Power / Cut Off Power
Reduce Power: When voltage drops to the set threshold, ESC reduces power to 70%.
Cut Off Power: When voltage drops to the set threshold, ESC cuts off power immediately. - Acceleration: Normal / Soft
6. Maintenance
- Regular Inspection: Periodically check all wires and connectors for signs of wear, fraying, or corrosion. Ensure plugs are securely seated.
- Cleaning: Keep the ESC clean and free from dust, dirt, and moisture. Use a soft brush or compressed air to remove debris. Avoid using liquids directly on the ESC.
- Heat Management: Ensure adequate airflow around the ESC during operation to prevent overheating. While the ESC has low heat generation due to synchronous rectification, proper ventilation is still crucial.
- Storage: Store the ESC in a dry, cool place away from direct sunlight and extreme temperatures when not in use.
7. Troubleshooting
The ZTW Mantis Slim G2 15A ESC incorporates multiple protection features to safeguard itself and your RC model. Understanding these can help in troubleshooting.
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not start or stutters | Incorrect throttle calibration, poor motor/battery connection, phase loss, start-up protection triggered. | Recalibrate throttle range. Check all wiring connections. Ensure battery is charged. Check motor phase connections. |
| ESC cuts power during flight | Low-voltage cutoff, over-heat protection, signal loss. | Check battery voltage and charge level. Ensure adequate cooling for ESC. Verify receiver signal and connections. |
| Motor runs in wrong direction | Incorrect motor phase wiring. | Swap any two of the three motor wires. Alternatively, change motor rotation setting via programming. |
| ESC gets excessively hot | Overloading, poor ventilation, incorrect timing setting. | Reduce load on the motor. Improve airflow around the ESC. Adjust motor timing to a lower setting. |
| No response from ESC | No power, damaged ESC, signal loss. | Check battery connection and voltage. Verify receiver connection and power. If issues persist, ESC may be faulty. |
8. User Tips
- Battery Matching: Always use batteries within the specified voltage range (2-4S LiPo) to prevent damage to the ESC and ensure optimal performance.
- Propeller Selection: Choose a propeller size appropriate for your motor and aircraft to avoid overloading the ESC. An oversized propeller can cause excessive current draw and heat.
- Secure Mounting: Mount the ESC securely in your aircraft, ensuring it is protected from vibrations and potential impact. Allow for good airflow around the unit.
- Programming Card/App: While transmitter programming is possible, investing in an LCD program card or ZTW Bluetooth Module can significantly simplify and speed up parameter adjustments.
- Initial Testing: Always perform initial tests with the propeller removed to prevent accidental injury during setup and calibration.
9. Warranty and Support
For warranty claims, technical support, or service inquiries, please contact the seller or the manufacturer directly. Keep your proof of purchase for any warranty-related requests. Specific warranty terms and conditions may vary by region and retailer.
