How to Use POWER SUPPLY 24v 350w: Examples, Pinouts, and Specs

The Meanwell POWER SUPPLY 24v 350w is a high-performance, reliable power supply designed to convert electrical energy into a stable 24V DC output. With a maximum power output of 350 watts, this power supply is ideal for powering a wide range of electronic devices and circuits. Its robust design ensures consistent performance, making it suitable for industrial, commercial, and hobbyist applications.

• Industrial automation systems
• LED lighting and signage
• CNC machines and 3D printers
• Robotics and motor controllers
• Laboratory equipment and testing setups
• DIY electronics projects requiring stable DC power

The following table outlines the key technical details of the Meanwell POWER SUPPLY 24v 350w:

The power supply features input and output terminals for easy integration into circuits. Below is the pin configuration:

1. Mounting the Power Supply: Secure the power supply in a well-ventilated area to prevent overheating. Ensure it is mounted away from flammable materials.
2. Connecting the Input:
   • Connect the AC live wire to the L terminal.
   • Connect the AC neutral wire to the N terminal.
   • Connect the earth wire to the FG terminal for safety.
3. Connecting the Output:
   • Connect the V+ terminals to the positive input of your load.
   • Connect the V- terminals to the negative input of your load.
4. Adjusting the Output Voltage (if necessary):
   • Use the built-in potentiometer to fine-tune the output voltage. This is typically located near the output terminals.
5. Powering On:
   • Ensure all connections are secure and correct.
   • Plug the power supply into an AC outlet and switch it on.

• Load Requirements: Ensure the total load does not exceed 350W or 14.6A to prevent overloading.
• Ventilation: Maintain adequate airflow around the power supply to avoid overheating.
• Safety: Always disconnect the power supply from the mains before making any wiring changes.
• Fusing: Use an appropriate fuse on the input side to protect against overcurrent conditions.
• Isolation: Avoid direct contact with the terminals when the power supply is energized.

The Meanwell POWER SUPPLY 24v 350w can be used to power an Arduino UNO via a step-down voltage regulator (e.g., LM2596) to convert 24V to 5V. Below is an example circuit and Arduino code:

1. Connect the V+ and V- terminals of the power supply to the input of the LM2596 regulator.
2. Adjust the LM2596 output to 5V using its potentiometer.
3. Connect the 5V output of the regulator to the Arduino UNO's 5V and GND pins.

// Example code to blink an LED connected to pin 13 of the Arduino UNO
void setup() {
  pinMode(13, OUTPUT); // Set pin 13 as an output
}

void loop() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(1000);            // Wait for 1 second
  digitalWrite(13, LOW);  // Turn the LED off
  delay(1000);            // Wait for 1 second
}

1. No Output Voltage:

   • Check if the input AC voltage is within the specified range (85-264V AC).
   • Verify that the connections to the L, N, and FG terminals are correct.
   • Ensure the power supply is switched on and the fuse (if used) is intact.

2. Overheating:

   • Ensure the power supply is not overloaded (max 350W).
   • Check for proper ventilation and remove any obstructions around the unit.

3. Voltage Fluctuations:

   • Verify that the load is stable and does not exceed the rated current.
   • Use the potentiometer to fine-tune the output voltage if necessary.

4. Short Circuit Protection Triggered:

   • Disconnect the load and inspect for any short circuits in the connected circuit.
   • After resolving the issue, power cycle the supply to reset the protection.

• Use a multimeter to measure the input and output voltages for diagnostics.
• If the power supply fails to operate, inspect for visible damage or burnt components.
• For persistent issues, consult the Meanwell user manual or contact technical support.

By following this documentation, users can safely and effectively integrate the Meanwell POWER SUPPLY 24v 350w into their projects and applications.