1. Introduction
This manual provides detailed instructions for the Kaleinavi DC Motor Speed Controller with Remote Control, Model 002915. This device is designed for stepless speed control and forward/reverse rotation of DC motors, operating at 12V or 24V. Please read this manual thoroughly before installation and operation to ensure proper use and longevity of the product.
2. Package Contents
- 1 x DC Motor Speed Controller Receiver
- 1 x Remote Control (with battery installed)
3. Technical Specifications
| Working Voltage | DC 12V / 24V (selectable via jumper) |
| Silent Current | <10mA |
| Maximum Current | <10A |
| Recommended Motor Current (12V) | Within 8A |
| Recommended Motor Current (24V) | Within 5A |
| Frequency | 433 MHz |
| Working Temperature | -10°C to +60°C |
| Reception Sensitivity | >110dbm |
| Reception Range | 50-200 meters (open space) |
| Product Dimensions | 3.94 x 2.36 x 1.18 inches |
| Item Weight | 3.68 ounces |
| Material | Copper (circuit board components) |
4. Product Overview
The Kaleinavi DC Motor Speed Controller consists of a receiver unit and a wireless remote control. The receiver unit connects to your DC power source and motor, while the remote control allows for wireless operation.
4.1. Components

Figure 1: DC Motor Speed Controller Receiver and Remote Control.
This image displays the Kaleinavi DC Motor Speed Controller receiver board alongside its white wireless remote control. The receiver board features terminal blocks for power input and motor connection, along with various electronic components. The remote control has four gray buttons labeled ON/OFF, REVERSE, SPEED UP, and SPEED DOWN.
4.2. Remote Control Button Functions
- A (ON/OFF): Toggles the motor power on or off.
- B (REVERSE): Changes the direction of motor rotation.
- C (SPEED UP): Increases the motor speed.
- D (SPEED DOWN): Decreases the motor speed.
5. Setup and Installation
Follow these steps to properly set up your DC Motor Speed Controller.
5.1. Identify Components and Connections

Figure 2: Receiver board with labeled input, output, and jumper for voltage selection.
This image shows the circuit board of the DC motor speed controller with key components labeled. It highlights the "learn button", the "Jumper for 12/24V change voltage", "DC Input" terminals (+ and -), and "Connect Motor" terminals (+ and -). Dimensions of 50mm by 70mm are also indicated.
5.2. Voltage Selection
The controller supports both 12V and 24V DC operation. Select the appropriate voltage using the jumper on the receiver board. Ensure the jumper setting matches your power supply and motor voltage.
- Locate the jumper labeled "Jumper for 12/24V change voltage" on the circuit board (refer to Figure 2).
- Adjust the jumper to the desired voltage setting (12V or 24V).
5.3. Wiring Connections

Figure 3: Example wiring of the controller to a DC motor and power source.
This image illustrates a complete setup, showing the Kaleinavi DC Motor Speed Controller receiver board connected to a DC motor and a power source. The remote control is also visible, demonstrating the full system. Red and black wires are used for connections, indicating positive and negative terminals.
- Connect Power Input: Connect your DC 12V or 24V power supply to the "DC Input" terminals on the receiver board. Ensure correct polarity (+ to + and - to -).
- Connect Motor: Connect your DC motor to the "Connect Motor" terminals on the receiver board. The polarity here will determine the initial direction of rotation.
- Verify Connections: Double-check all wiring to ensure secure and correct connections before applying power.
Note: It is recommended to use motors within 8A for 12V systems and within 5A for 24V systems to prevent overloading the controller.
6. Operating Instructions
Once the controller is wired and powered, you can operate the motor using the remote control.
6.1. Basic Operation
- Power ON/OFF: Press the ⏻ (ON/OFF) button to start or stop the motor.
- Change Direction: Press the ↻ (REVERSE) button to reverse the motor's rotation direction.
- Increase Speed: Press the + (SPEED UP) button to increase the motor's speed.
- Decrease Speed: Press the - (SPEED DOWN) button to decrease the motor's speed.
6.2. Speed Control Gears
The product features five distinct speed control gears. When the motor is at its full speed (100%), the gears correspond to the following percentages:
- First Gear: 20% of full speed
- Second Gear: 40% of full speed
- Third Gear: 60% of full speed
- Fourth Gear: 80% of full speed
- Fifth Gear: 100% of full speed
For example, if your motor's maximum speed is 100 RPM, the first gear will operate at 20 RPM, the second at 40 RPM, and so on, up to 100 RPM at the fifth gear.
7. Maintenance
The Kaleinavi DC Motor Speed Controller is designed for low maintenance. Keep the unit clean and free from dust and moisture. Avoid exposing the device to extreme temperatures or direct sunlight. Ensure all connections remain secure.
8. Troubleshooting
- Motor not responding:
- Check power supply connections to the receiver board.
- Verify motor connections for correct polarity and secure contact.
- Ensure the remote control battery is functional.
- Confirm the voltage jumper setting matches your power supply.
- Motor runs at incorrect speed or direction:
- Use the SPEED UP/DOWN buttons to adjust.
- Press the REVERSE button to change direction.
- Ensure the motor is not overloaded beyond recommended current limits (8A for 12V, 5A for 24V).
- Reduced remote range:
- Ensure there are no significant obstructions between the remote and the receiver.
- Check for sources of radio frequency interference.
- Replace the remote control battery if necessary.
9. Warranty and Support
This product comes with a one-year warranty from the date of purchase. For warranty claims or technical support, please contact Kaleinavi customer service through your retailer or the official Kaleinavi store page.
For further assistance, please visit the Kaleinavi Store.





