1. Introduction
This manual provides essential information for the safe and efficient use of your NULKOMMA LSW1395-30-7M Electric Bicycle Controller. This brushless motor controller is designed to provide stable speed and responsive control for electric bicycles and scooters. Please read these instructions thoroughly before installation and operation to ensure proper function and longevity of the product.
2. Safety Information
- Always disconnect power before installing or performing maintenance on the controller.
- Ensure all connections are secure and correctly matched to prevent electrical shorts or damage.
- Avoid exposing the controller to water or extreme temperatures.
- Do not attempt to open or modify the controller casing, as this may void the warranty and pose safety risks.
- If you are unsure about any installation steps, consult a qualified technician.
3. Product Overview
The NULKOMMA LSW1395-30-7M is a DC48V 20A brushless motor controller designed for e-bikes and scooters. It features a durable aluminum alloy shell for effective heat dissipation and protection of internal circuits.
Key Features:
- Sensitive Control: Provides steady speed and responsive control for braking and direction changes.
- Good Heat Dissipation: Aluminum alloy shell protects the internal circuit and prevents thermal overloading.
- Durable Construction: Wires and interfaces are designed for long-term use with low malfunction rates.
This image shows the NULKOMMA LSW1395-30-7M Electric Bicycle Controller, a rectangular silver unit, with multiple wires extending from one end. The wires are black and red, terminating in various connectors, including a yellow XT60-style connector, a multi-pin circular connector, and smaller white and black connectors. This illustrates the complete unit with its primary connections.
4. Setup and Installation
The controller is designed for easy installation with instruction labels on its interfaces. It is crucial to connect each interface correctly to its matching component.
- Identify Connectors: Familiarize yourself with the different connectors on the controller and their corresponding functions (e.g., motor, battery, display, throttle, brakes).
- Battery Connection: Connect the main power wires (red and black, often with an XT60 connector) to your DC48V battery. Ensure correct polarity.
- Motor Connection: Connect the motor phase wires and Hall sensor wires to the controller. These are typically thicker wires for power and thinner wires for sensing.
- Display/Meter Connection: Connect the display meter cable to the designated port. This often uses a multi-pin circular connector.
- Throttle Connection: Connect the throttle cable. The controller supports a throttle adjustment voltage of 1.2V-4.4V.
- Brake Levers: Connect the brake lever cables, if applicable.
- Secure Mounting: Mount the controller securely in a protected location on your e-bike or scooter, away from direct impact or excessive moisture.
Important: Double-check all connections before applying power to avoid damage to the controller or other components.
This image provides a close-up of the NULKOMMA LSW1395-30-7M Electric Bicycle Controller, specifically highlighting its various connectors. Insets show detailed views of the multi-pin circular connectors (likely for display/motor signals) and the XT60-style connector (for battery power), along with other smaller white and black connectors. This visual aid helps in identifying and correctly connecting the different components during installation.
Installation Video Guide:
This video demonstrates the NULKOMMA LSW1395-30-7M Electric Bicycle Controller, showcasing its physical appearance, the label with specifications, and a detailed view of all the wiring harnesses and connectors. It provides a visual guide to help users identify the different parts of the controller for proper installation.
5. Operating Instructions
Once the controller is correctly installed and all connections are secure:
- Power On: Turn on the main power switch of your e-bike/scooter. The display meter (if connected) should illuminate.
- Throttle Control: Gently twist the throttle to engage the motor. The controller will provide smooth acceleration.
- Braking: Apply the brake levers. The controller is designed to cut power to the motor when brakes are engaged, ensuring safety.
- Monitoring: Use your display meter to monitor speed, battery level, and other relevant parameters.
- Power Off: Always turn off the main power switch when not in use or when parking your e-bike/scooter.
6. Maintenance
- Keep the controller clean and free from dust and debris.
- Regularly inspect all wiring and connectors for signs of wear, damage, or loose connections.
- Ensure the controller's mounting is secure to prevent vibrations from causing damage.
- Avoid pressure washing the controller directly. Use a damp cloth for cleaning.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor not responding | Loose connections, low battery, faulty throttle, motor issue. | Check all wiring connections. Ensure battery is charged. Test throttle functionality. Inspect motor for damage. |
| Intermittent power | Loose battery connection, damaged wiring. | Secure battery connection. Inspect wiring for cuts or fraying. |
| Controller overheating | Excessive load, poor ventilation, internal fault. | Reduce load. Ensure controller is not covered. Contact support if problem persists. |
If you encounter issues not listed here or if solutions do not resolve the problem, please contact NULKOMMA customer support.
8. Specifications
- Model: LSW1395-30-7M
- Rated Voltage: 48V
- Maximum Current: 20A
- Rated Current: 10A
- Low Voltage Protection: 42V
- Throttle Adjustment Voltage: 1.2V-4.4V
- Manufacturer: NULKOMMA
- Item Weight: 13.3 ounces (378 Grams)
- Included Components: LSW1395-30-7M controller
- UPC: 730763208626
This image shows a close-up of the product label affixed to the NULKOMMA LSW1395-30-7M Electric Bicycle Controller. The label clearly lists important technical specifications such as Rated Voltage (48V), Maximum Current (20A), Rated Current (10A), Low Voltage Protection (42V), and Throttle Adjustment Voltage (1.2V-4.4V), along with the product number and ex-factory date. This provides a direct reference for the controller's operational parameters.
9. Warranty and Support
NULKOMMA offers a guarantee for this product. If you are not satisfied with your purchase, you may apply for an unconditional return and refund within 180 days of receipt.
For any product-related inquiries, technical assistance, or warranty claims, please contact NULKOMMA customer support. You can typically find contact information on the seller's page or through your purchase platform.
Note: As this is a customized product, NULKOMMA may contact you after your order to ensure compatibility with your bike. Please respond to these communications promptly.
