How to Use DIN Rail 24v 2.4a Power Supply: Examples, Pinouts, and Specs

The Meanwell MDR-60-24 is a DIN rail-mounted power supply unit designed to provide a stable 24V DC output with a current capacity of 2.4 amps. This power supply is commonly used in industrial and automation applications, where reliable and consistent power delivery is crucial. Its compact design and ease of installation make it a popular choice for powering various electronic devices and systems.

1. Mounting the Power Supply:

   • Securely mount the MDR-60-24 on a DIN rail in your control panel or enclosure.

2. Connecting the Input:

   • Connect the AC Live wire to the L terminal.
   • Connect the AC Neutral wire to the N terminal.
   • Optionally, connect the Frame Ground (Earth) to the FG terminal for safety.

3. Connecting the Output:

   • Connect the positive terminal of your load to the +V terminal.
   • Connect the negative terminal of your load to the -V terminal.

4. Powering Up:

   • Ensure all connections are secure and correct.
   • Apply AC power to the input terminals. The power supply will convert the AC input to a stable 24V DC output.

• Ventilation: Ensure adequate ventilation around the power supply to prevent overheating.
• Load Capacity: Do not exceed the maximum output current of 2.4A to avoid damaging the power supply.
• Safety: Always disconnect power before making any connections or modifications to the circuit.
• Surge Protection: Consider using surge protection devices to safeguard the power supply from voltage spikes.

1. No Output Voltage:

   • Check Input Connections: Ensure the AC input connections are secure and correct.
   • Verify Input Voltage: Confirm that the input voltage is within the specified range (85-264V AC).
   • Inspect Fuses: Check for any blown fuses in the input circuit.

2. Output Voltage Fluctuations:

   • Check Load: Ensure the load connected to the power supply does not exceed 2.4A.
   • Inspect Connections: Verify that all output connections are secure and free from corrosion.

3. Overheating:

   • Ventilation: Ensure there is adequate ventilation around the power supply.
   • Ambient Temperature: Confirm that the operating environment is within the specified temperature range (-20°C to +70°C).

Q: Can the MDR-60-24 be used with an Arduino UNO? A: Yes, the MDR-60-24 can be used to power an Arduino UNO. Connect the +V terminal to the VIN pin and the -V terminal to the GND pin of the Arduino.

Q: Is the MDR-60-24 protected against short circuits? A: Yes, the MDR-60-24 has built-in protection against short circuits, overloads, and over-voltage conditions.

Q: Can I use the MDR-60-24 in outdoor applications? A: The MDR-60-24 is designed for indoor use. If you need to use it outdoors, ensure it is housed in a weatherproof enclosure.

Below is an example code to demonstrate how to power an Arduino UNO using the MDR-60-24 power supply:

// Example code to blink an LED on Arduino UNO powered by MDR-60-24

const int ledPin = 13; // Pin number for the onboard LED

void setup() {
  pinMode(ledPin, OUTPUT); // Set the LED pin as an output
}

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

Note: Ensure the +V terminal of the MDR-60-24 is connected to the VIN pin and the -V terminal is connected to the GND pin of the Arduino UNO.

By following this documentation, users can effectively utilize the Meanwell MDR-60-24 DIN Rail 24V 2.4A Power Supply in their projects, ensuring reliable and stable power delivery for various applications.