How to Use EPS-120-24: Examples, Pinouts, and Specs

The EPS-120-24 is a 120W enclosed AC-DC power supply manufactured by Converter. It delivers a stable 24V DC output and is designed for a wide range of applications, including LED lighting systems, industrial automation, and general-purpose electronic equipment. This power supply is equipped with essential protection features such as short circuit, overload, and overvoltage protection, ensuring reliable and safe operation in demanding environments.

• LED lighting systems
• Industrial control systems
• Automation equipment
• Test and measurement devices
• General-purpose DC power supply for electronics

The EPS-120-24 features screw terminal connections for input and output. Below is the pin configuration:

1. Mounting the Power Supply: Secure the EPS-120-24 in a well-ventilated area to ensure proper heat dissipation. Avoid placing it near heat-sensitive components.
2. Connecting Input Power:
   • Connect the L terminal to the live AC line.
   • Connect the N terminal to the neutral AC line.
   • Connect the FG terminal to the earth ground for safety.
3. Connecting the Output Load:
   • Connect the +V terminal to the positive input of your load.
   • Connect the -V terminal to the ground or negative input of your load.
4. Powering On: After verifying all connections, apply AC power to the input terminals. The power supply will provide a stable 24V DC output.

• Input Voltage Range: Ensure the input voltage is within the specified range (88-264V AC). Operating outside this range may damage the power supply.
• Load Requirements: Do not exceed the maximum output current of 5A. Overloading the power supply may trigger the overload protection or cause permanent damage.
• Ventilation: Ensure adequate airflow around the power supply to prevent overheating. Avoid enclosing the unit in a sealed space.
• Wiring: Use appropriately rated wires for both input and output connections to handle the current safely.
• Safety: Always disconnect the power supply from the mains before making any wiring changes.

The EPS-120-24 can be used to power an Arduino UNO and other peripherals. Below is an example circuit and code:

1. Connect the +V terminal of the EPS-120-24 to the VIN pin of the Arduino UNO.
2. Connect the -V terminal of the EPS-120-24 to the GND pin of the Arduino UNO.
3. Ensure the total current draw of the Arduino and peripherals does not exceed 5A.

// Example code for Arduino UNO powered by EPS-120-24
// This code blinks an LED connected to pin 13

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. Can the EPS-120-24 be used outdoors?

   • No, the EPS-120-24 is not weatherproof. It must be used in a dry, indoor environment.

2. What happens if the load exceeds 5A?

   • The overload protection will activate, shutting down the output to protect the power supply. Reduce the load and restart the power supply.

3. Can I use the EPS-120-24 to charge batteries?

   • While it is possible, the EPS-120-24 does not include specific charging circuitry. Use a dedicated battery charger for optimal performance and safety.

4. Is the EPS-120-24 compatible with 12V devices?

   • No, the EPS-120-24 provides a fixed 24V output. Using it with 12V devices may damage them unless a step-down converter is used.

By following this documentation, users can safely and effectively integrate the EPS-120-24 into their projects.