MEAN WELL MDR-60-24 DIN-Rail Power Supply User Manual

1. Introduction

The MEAN WELL MDR-60-24 is a 60W DIN-Rail switching power supply designed to provide a stable 24 Volts DC output at 2.5 Amps. This compact and efficient power supply is suitable for various industrial and scientific applications, offering reliable performance with built-in protections.

2. Safety Information

Please read this manual carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or damage to the unit. Always ensure the power supply is disconnected from the main power source before performing any installation, maintenance, or troubleshooting.

• Installation should be performed by qualified personnel only.
• Ensure proper grounding to prevent electric shock.
• Do not operate the unit in environments exceeding its specified temperature and humidity ranges.
• Avoid blocking ventilation openings to prevent overheating.
• Verify input voltage compatibility before connecting to power.

3. Product Features

• Universal AC input range (85-264VAC, 47-63Hz) or 120-370VDC.
• Protections: Short-circuit, Overload, Overvoltage.
• 100% Full load burn-in test for reliability.
• Soft-start circuit, limiting AC surge current.
• DIN-Rail mountable design for easy installation.
• High efficiency: 88%.
• Compact dimensions: 1.57 x 3.54 x 3.94 inches.
• Agency Approvals: UL/CUL/TUV/CB/CE.

4. Setup and Installation

The MDR-60-24 is designed for easy installation on a standard 35mm DIN rail. Follow these steps for proper setup:

1. Mounting: Securely attach the power supply to a 35mm DIN rail by pushing it onto the rail until it clicks into place. Ensure it is firmly seated.
2. Input Wiring: Connect the AC input (L, N) and Ground (FG) wires to the corresponding screw terminals. Refer to the product label for correct terminal identification. Ensure all connections are tight and secure.
3. Output Wiring: Connect the DC output wires (+V, -V) to your load. The unit features screw terminals for output connections. Observe correct polarity.
4. Voltage Adjustment: The unit may have a potentiometer for fine-tuning the output voltage. Use a small screwdriver to adjust the voltage within the specified range if necessary.
5. Verification: Before applying power, double-check all wiring connections for correctness and security.

5. Operating Instructions

Once properly installed and wired, the MDR-60-24 power supply operates automatically. Apply the specified AC input voltage to the L and N terminals. The unit will convert this to a stable 24V DC output. The "DC OK" indicator (if present) will illuminate when the output voltage is within the acceptable range.

• Ensure the total load connected to the power supply does not exceed 60W or 2.5 Amps at 24V.
• Monitor the "DC OK" indicator for proper operation.
• In case of overload or short-circuit, the unit's protection circuits will activate to prevent damage. Remove the fault condition, and the unit should resume normal operation.

6. Maintenance

The MEAN WELL MDR-60-24 power supply is designed for long-term, maintenance-free operation. However, periodic checks can help ensure optimal performance and longevity:

• Cleaning: Keep the unit free from dust and debris. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners.
• Ventilation: Ensure that the ventilation slots are not obstructed. Adequate airflow is crucial for heat dissipation.
• Connections: Periodically check all screw terminal connections to ensure they remain tight and secure. Loose connections can lead to poor performance or overheating.
• Environmental Conditions: Verify that the operating environment remains within the specified temperature and humidity limits.

7. Troubleshooting

If the power supply is not functioning as expected, consider the following troubleshooting steps:

• No Output Voltage / "DC OK" Indicator Off:
  • Check the input power source. Ensure AC voltage is present at the L and N terminals.
  • Verify all input and output wiring connections are correct and secure.
  • Disconnect the load. If the power supply then operates normally, the load may be drawing too much current or have a short circuit.
  • Check for short circuits in the output wiring or connected device.
• Intermittent Operation:
  • Ensure adequate ventilation and that the ambient temperature is within the specified operating range. Overheating can cause the unit to shut down temporarily.
  • Check for loose connections at the input or output terminals.
• Output Voltage Incorrect:
  • Use a multimeter to measure the output voltage directly at the terminals.
  • Adjust the voltage potentiometer (if available) to fine-tune the output.
  • Ensure the load is not exceeding the maximum output current.

If problems persist after following these steps, contact MEAN WELL customer support or a qualified technician.

8. Specifications

9. Warranty and Support

The MEAN WELL MDR-60-24 DIN-Rail Power Supply comes with a 3-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.

For technical support, warranty claims, or further assistance, please contact your authorized MEAN WELL distributor or visit the official MEAN WELL website for contact information.