1. Wprowadzenie
The NULKOMMA JH4AS5101DZXJ is a brushless DC motor controller designed for electric bicycles and scooters. It provides stable speed control and sensitive response for braking and direction changes. The controller features a high-quality aluminum alloy shell with a groove design for efficient heat dissipation, protecting internal circuits from thermal overload. Its wires and waterproof interfaces are engineered for durability and low failure rates, ensuring reliable long-term use in various weather conditions.
2. Co znajduje się w pudełku
- 1 x NULKOMMA JH4AS5101DZXJ Electric Bicycle Controller
3. Wizualizacje produktów

Image 1: The NULKOMMA JH4AS5101DZXJ Electric Bicycle Controller, showing the product label with specifications such as voltage (DC48V), low voltage protection (39±1V), and maximum current (28±1A).

Image 2: The NULKOMMA JH4AS5101DZXJ Electric Bicycle Controller, displaying its various colored wires and connectors for different functions, including power, motor phases, and auxiliary signals.
Wideo 1: Overview of the NULKOMMA JH4AS5101DZXJ Electric Bicycle Controller, demonstrating its physical appearance and the various connection points for installation.
4. Konfiguracja i instalacja
- Bezpieczeństwo przede wszystkim: Before installation, ensure the electric bicycle's power is completely off and the battery is disconnected to prevent electrical shock or damage.
- Zidentyfikuj złącza: Carefully examine the JH4AS5101DZXJ controller. Each interface is labeled to guide correct connection. Refer to the labels for specific functions.
- Podłączenie zasilania: Connect the main power cables (typically thicker red and black wires) to your e-bike's battery. Ensure correct polarity (red to positive, black to negative).
- Przewody fazowe silnika: Connect the three thicker motor phase wires (commonly blue, green, and yellow) from the controller to the corresponding motor wires.
- Przewody czujnika Halla: Connect the five thinner Hall sensor wires from the controller to the motor's Hall sensor port.
- Throttle/Accelerator: Connect the throttle or accelerator cable to its designated port on the controller.
- Dźwignie hamulca: Connect the brake lever cables. This controller supports low-level brake signals, which cut motor power when brakes are applied.
- Wyświetl miernik: If your e-bike uses a display meter, connect its cable to the appropriate port on the controller.
- Auxiliary Connections: Connect any other auxiliary cables such as pedal assist sensor (PAS), speed sensor, or light connections as required by your e-bike's specific configuration.
- Zabezpiecz i zamontuj: Secure all connections firmly, ensuring no exposed wires. Mount the controller in a protected location on your e-bike, allowing for adequate airflow to facilitate heat dissipation.
5. Działanie
- Kontrola przed rozpoczęciem pracy: After installation, double-check that all connections are secure and correctly made.
- Włączanie: Turn on the electric bicycle's main power switch. The display meter (if connected) should illuminate, indicating the system is active.
- Test przepustnicy: Gently engage the throttle/accelerator. The motor should respond smoothly and provide power.
- Test hamulca: Test both brake levers. Engaging the brakes should immediately cut power to the motor.
- Weryfikacja funkcji: Verify that all other connected functions, such as pedal assist, lights, and horn (if applicable), are working correctly.
- Kontrola bezpieczeństwa: Always perform a comprehensive safety check before riding, ensuring brakes, throttle, and steering are fully functional and responsive.
6. Konserwacja
- Kontrola połączenia: Regularly inspect all wire connections for any signs of looseness, corrosion, or damage. Tighten loose connections or replace damaged wires as necessary.
- Czyszczenie: Keep the controller clean and free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning. Avoid using harsh chemicals or abrasive materials.
- Ochrona środowiska: Avoid exposing the controller to extreme temperatures, direct sunlight, or heavy rain for prolonged periods.
- Bez demontażu: Nie próbuj otwierać kontrolera casing. Doing so may void the warranty and can expose sensitive internal components to damage.
- Narażenie na wilgoć: If the controller becomes wet, immediately disconnect power and allow it to dry completely in a well-ventilated area before re-applying power.
7. Rozwiązywanie Problemów
- Silnik nie reaguje:
Możliwe przyczyny: Disconnected battery, loose throttle connection, incorrect motor phase/Hall sensor wiring, discharged battery.
Rozwiązania: Check all relevant connections, ensure battery is charged, verify wiring according to the setup instructions. - Zasilanie przerywane:
Możliwe przyczyny: Loose power connections, damaged wires.
Rozwiązania: Inspect all power connections for a secure fit. Check for any frayed or damaged wires and replace if necessary. - Przegrzanie kontrolera:
Możliwe przyczyny: Insufficient airflow, continuous high-load operation.
Rozwiązania: Ensure the controller is mounted in a location with sufficient airflow. Reduce continuous high-load operation if possible. - Hamulce nie odcinają mocy:
Możliwe przyczyny: Incorrect or loose brake lever connections.
Rozwiązania: Verify brake lever connections and ensure they are properly engaged. - Wyświetlacz nie działa:
Możliwe przyczyny: Loose display cable connection.
Rozwiązania: Check the display cable connection to the controller.
For persistent issues or problems not listed here, it is recommended to consult a qualified e-bike technician or contact NULKOMMA customer support for assistance.
8. Specyfikacje
| Funkcja | Specyfikacja |
|---|---|
| Numer modelu | JH4AS5101DZXJ |
| Tomtage | Prąd stały 48 V |
| Niska objętośćtage Ochrona | 39±1 V |
| Maksymalny prąd | 28±1A |
| Poziom hamulca | Niski poziom |
| Wymiary produktu | 5.91 x 1.97 x 1.18 cala |
| Waga przedmiotu | 14.8 uncji |
| Producent | NULKOMMA |
9. Gwarancja i wsparcie
NULKOMMA offers a 180-day unconditional return and refund policy for products received. If you are not satisfied with your purchase, you may apply for a return and refund within this period.
For any product-related issues, technical assistance, or support inquiries, please contact NULKOMMA customer service via email. We are committed to providing timely and helpful assistance to ensure your satisfaction.