1. Introducció
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your PWM DC Motor Speed Controller with Digital Display. This module is designed to provide precise speed control for DC motors, featuring a digital display for 0-100% speed indication and an adjustable drive module.
The product is an upgraded V2 version, offering improved stability compared to the original.
Figure 1: Cover page of the Motor Controller Description manual
2. Especificacions
Especificacions generals:
- Voltage Rang: 9 V - 60 V
- Vol. De sortidatage: Linear (under load)
- Corrent nominal: 12V35A
- Speed Control Range: 0% - 100% (digital display)
- Corrent màxima: 60A
Figure 2: Important notes and specifications for the PWM controller
Requisits ambientals:
- Mètode de refrigeració: Natural cooling (forced air cooling recommended)
- Entorn de funcionament: Avoid dust, oil mist, and corrosive gases.
- Temperatura de funcionament: 0 °C a +50 °C
- Humitat: <80% RH, non-condensing, non-frosting
- Vibració: Max 5.9m/s²
- Temperatura d'emmagatzematge: -20 °C a +65 °C
- Pes: Aprox. 0.26 kg
Nota important:
Due to drastic changes in storage and transportation temperatures, condensation or frosting may occur. In such cases, the driver should be left for 12 hours until its temperature matches the ambient temperature before powering on.
3. Configuració i instal·lació
Wiring Matching:
Connect the power and motor wires strictly according to the nameplate. Ensure the phase sequence, voltage, and current do not exceed the standard limits. The grounding must be firm.
Figure 3: PWM DC Motor Speed Controller Board (Top View)
Figura 4: A baix view of the controller board
Figura 5: Angle view of the controller board showing components
Pin Definition and Dimensions:
Figure 6: Wiring diagram and dimensions of the controller with pin definitions
- Pin 1: Motor
- Pin 2: Motor
- Pin 3: Pol negatiu d'alimentació
- Pin 4: Pol positiu d'alimentació
Figure 7: Dimensional drawing of the controller board
Components físics:
Figure 8: Digital display, potentiometer, and power switch
Figura 9: superior view of the controller board with terminal blocks
Notes generals d'instal·lació:
- Ensure good ventilation when installing the driver.
- If multiple drivers are used in parallel within a cabinet, maintain a distance of at least 5cm between them.
- For safety, always connect the driver's grounding terminal to the equipment's protective ground.
4. Funcionament
Configuració de paràmetres:
Before starting up, adapt the rated parameters of the motor (power, speed, rated current) to the controller. Adjust the protection values (overcurrent, overheating, undervoltage) as needed.
Operació de posada en marxa:
Avoid frequent start/stop cycles, forward/reverse rotation with carrier frequency, and soft start/soft stop. Prevent overloading and operating at excessive speeds.
Video 1: Demonstration of the PWM speed controller components and assembly
5. Manteniment
Protecció del medi ambient:
Keep the controller away from dust, oil stains, and accumulated water. Operate within the rated temperature range and ensure proper ventilation and heat dissipation. Regularly clean any filter screens.
Maintenance Operations:
- During maintenance, the power must be cut off and discharged.
- It is strictly prohibited to plug and unplug wiring or remove the cover plate while the power is on.
- Regularly check the wiring terminals for looseness and erosion.
Adaptation Protection:
For outdoor or corrosive environments, use a protective controller with waterproof sealing for cables to prevent foreign objects from entering the housing.
6. Solució De Problemes
Tractament d'errors:
If an alarm occurs and the unit shuts down, first power off. Troubleshoot the issue (check wiring, motor, and load), then reset the unit. It is strictly prohibited to operate the device with known faults.
If the controller experiences an over-temperature shutdown, ensure additional heat sinks are installed if necessary.
If an overcurrent (short circuit) fault occurs, check the motor wiring and other potential short circuits. After clearing the fault, power cycle the unit to reset.
If there is no motor fault indication, check the motor wiring. After confirming the wiring is correct, power cycle the unit to reset.
7. Consells d'usuari
- Voltage Compatibilitat: This controller supports a wide voltage range from 9V to 60V. Always verify that your power supply and motor voltage are within this range for optimal performance and safety.
- Mètode de control: The speed is adjusted via the integrated potentiometer and displayed digitally from 0-100%. This controller is not designed for 0-10V analog input control.
- Load Requirement: The PWM controller must be connected to equipment (a motor) to function properly. Do not test the controller without a load.
8. Garantia i assistència
For detailed warranty information and technical support, please refer to the official product documentation or contact your vendor. Always ensure proper installation and operation to maintain warranty validity.
A user manual in PDF format is available for download. Please refer to it for comprehensive details: View Manual d'usuari (PDF)





