1. Einleitung
This manual provides detailed instructions for the installation, operation, and maintenance of the Aideepen PWM DC Motor Speed Controller, Model BLM-30A. This device is designed to control the speed of DC motors by adjusting the Pulse Width Modulation (PWM) signal. It features a wide input voltage range, high current capacity, and a clear LED display for precise speed monitoring.
Hauptmerkmale:
- Langlebige Konstruktion: Manufactured from robust materials for enhanced durability and wear resistance.
- Einfache Installation: Equipped with screw terminals for convenient and quick wiring.
- LED-Digitalanzeige: Zeigt die Motordrehzahl in Prozent antage of the maximum speed, allowing for easy data reading.
- Breites Volumentage Reichweite: Supports DC input voltages from 6V to 60V, compatible with 12V, 24V, 36V, and 48V power supplies.
- Hoher Ausgangsstrom: Provides an adjustable output current from 0A to 30A.
- Stabile Leistung: Features an instant start/stop switch and a rotary potentiometer for reliable and precise speed control.
2. Sicherheitshinweise
Bitte lesen und verstehen Sie alle Sicherheitshinweise, bevor Sie dieses Gerät installieren oder in Betrieb nehmen. Die Nichtbeachtung dieser Hinweise kann zu Stromschlag, Brand oder schweren Verletzungen führen.
- Stellen Sie sicher, dass die Stromversorgung unterbrochen ist, bevor Sie Kabelverbindungen herstellen.
- Überprüfen Sie, ob die Eingangslautstärketage and current ratings match the specifications of the controller and your motor.
- Die maximale Nennstromstärke von 30 A darf nicht überschritten werden.
- Install the controller in a dry, well-ventilated area, away from flammable materials.
- Avoid short circuits during wiring and operation.
- This device is intended for DC motors only. Do not connect to AC power.
3. Produktüberschreitungview
The Aideepen PWM DC Motor Speed Controller features a compact design with an intuitive interface.

Abbildung 3.1: Vorderseite view of the speed controller, highlighting the LED display, SET button, PWM OUT indicator, and the multi-function rotary knob for speed adjustment and start/stop control.

Figure 3.2: Close-up of the LED digital display, which indicates the motor speed as a percentage.

Figure 3.3: Close-up of the rotary knob, used for adjusting speed and initiating motor start/stop functions.
4. Spezifikationen
| Parameter | Wert |
|---|---|
| Modellnummer | BLM-30A (A7XI0023) |
| Eingangslautstärketage Reichweite | Gleichstrom 6 V - 60 V |
| Ausgangsstrom | 0A - 30A (Continuous current: 20A) |
| Geschwindigkeitsbereich | 0 % - 100 % |
| Steuerungstyp | Steuerstrom |
| Kontrollfrequenz | 15 kHz |
| Anpassungsmethode | Potentiometer (Rotary Knob) |
| Verdrahtungstyp | Schraubklemme |
| Produktabmessungen (L x B x H) | 9 x 6 x 3.5 cm (ca. 3.54 x 2.36 x 1.38 Zoll) |
| Gewicht | 100 Gramm |
5. Einrichtung und Installation
Follow these steps to correctly install and wire your motor speed controller.
Verkabelungsanleitungen:

Figure 5.1: Wiring diagram illustrating the connection points for power input and motor output.
- Leistungsaufnahme: Connect your DC power supply to the terminals labeled 'Input positive 6-60V' (positive) and 'negative power supply' (negative). Ensure the voltage is within the 6V-60V DC range.
- Motorleistung: Connect your DC motor to the terminals labeled 'motor positive' (positive) and 'motor negative' (negative).
- Sichere Verbindungen: Tighten all screw terminals to ensure a secure and stable connection. Loose connections can cause overheating or malfunction.
Always double-check your wiring before applying power to prevent damage to the controller or motor.

Figure 5.2: Detail of the screw terminals for power and motor connections.
6. Bedienungsanleitung
Once the controller is correctly wired and powered on, you can begin operating your DC motor.
- Einschalten: Apply power to the controller. The LED display will illuminate, showing the current speed percentage.
- Start/Stop-Funktion: The rotary knob also functions as a start/stop switch. A short press of the knob will start or stop the motor.
- Geschwindigkeitsanpassung: Rotate the knob clockwise to increase the motor speed and counter-clockwise to decrease it. The LED display will show the speed as a percentage (0-100 %).
- Setting Mode (Advanced): A long press of the rotary knob will enter the setting mode for advanced parameters. Refer to specific product documentation or manufacturer support for details on advanced settings if needed.

Figure 6.1: Controller interface with labels for function, parameter value, and rotary knob operation.
7. Wartung
To ensure the longevity and optimal performance of your Aideepen PWM DC Motor Speed Controller, follow these maintenance guidelines:
- Reinigung: Periodically clean the exterior of the controller with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Inspektion: Regularly inspect the wiring connections for any signs of looseness, corrosion, or damage. Tighten connections as needed.
- Belüftung: Um eine Überhitzung zu vermeiden, ist darauf zu achten, dass die Lüftungsöffnungen nicht verstopft sind.
- Lagerung: If storing the controller for an extended period, keep it in a dry, dust-free environment.
8. Fehlerbehebung
If you encounter issues with your motor speed controller, refer to the following troubleshooting guide:
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Motor startet nicht | No power supply; Incorrect wiring; Motor in stop mode; Faulty motor. | Überprüfen Sie die Stromanschlüsse und die Versorgungsspannung.tage; Verify wiring according to Figure 5.1; Short press the rotary knob to start the motor; Test motor independently. |
| Motor speed cannot be adjusted | Rotary knob malfunction; Controller fault. | Ensure the knob rotates freely; If issue persists, contact support. |
| LED display is off or flickering | No power; Low input voltage; Lose Verbindung. | Check power supply; Ensure input voltage is within 6-60V; Inspect and tighten all wiring connections. |
| Controller überhitzt | Overload; Poor ventilation; Short circuit. | Reduce motor load; Ensure adequate airflow around the controller; Check for short circuits in wiring. |
9. Garantie und Support
Information regarding specific warranty terms and conditions for the Aideepen PWM DC Motor Speed Controller is not available in this document. For warranty claims, technical support, or further assistance, please contact your retailer or the manufacturer directly through their official support channels.
Please have your product model (BLM-30A) and purchase details ready when contacting support.