1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the PHOENIX CONTACT UNO2-PS/1AC/24DC/480W DIN Rail Power Supply. Please read this manual thoroughly before using the device and keep it for future reference.
The UNO2-PS/1AC/24DC/480W is a primary-switched power supply designed for DIN rail mounting. It accepts a single-phase AC input and provides a stable 24 V DC output with a power rating of 480 W. This power supply is suitable for various industrial and automation applications requiring reliable DC power.
2. Safety Instructions
WARNING: Failure to follow these safety instructions may result in serious injury or equipment damage.
- Installation and maintenance must only be performed by qualified personnel.
- Ensure the power supply is disconnected from the mains before any installation, wiring, or maintenance work.
- Protect the device from moisture, dust, and extreme temperatures.
- Do not operate the device if it is damaged.
- Observe all local and national electrical safety regulations.
- Ensure proper grounding of the device.
3. Setup and Installation
3.1 Mounting
The UNO2-PS/1AC/24DC/480W power supply is designed for mounting on a standard 35 mm DIN rail (EN 60715). Ensure adequate ventilation space around the unit (minimum 20 mm top/bottom, 10 mm sides) to prevent overheating.
- Hook the top edge of the power supply onto the DIN rail.
- Press the bottom edge firmly until it clicks into place.
- Verify that the unit is securely fastened to the DIN rail.
3.2 Wiring
Connect the input and output wiring according to the terminal markings on the device. Use appropriate wire gauges for the current ratings.
- Input (AC): Connect the single-phase AC input to the terminals marked L and N. Connect the protective earth (PE) to the designated ground terminal. Ensure the input voltage is within the specified range (e.g., 100-240 V AC).
- Output (DC): Connect the 24 V DC output to the terminals marked + and -. Observe correct polarity. The output is rated for 480 W.
Figure 1: Typical wiring connections for the UNO2-PS/1AC/24DC/480W power supply. Ensure all connections are secure and correctly polarized.
4. Operation
4.1 Initial Power-Up
After completing all wiring and ensuring safety precautions are met, apply power to the AC input. The power supply will begin operation immediately.
4.2 Status Indicators
The power supply features an LED indicator to show its operational status:
- Green LED ON: Output voltage is present and within tolerance.
- Green LED OFF: No output voltage or device is not powered.
4.3 Output Voltage Adjustment
The output voltage can be finely adjusted using the potentiometer located on the front of the unit. Use a small screwdriver to turn the potentiometer clockwise to increase the voltage or counter-clockwise to decrease it. Do not exceed the specified output voltage range.
5. Maintenance
The UNO2-PS/1AC/24DC/480W power supply is designed for maintenance-free operation under normal conditions. However, periodic inspection is recommended.
- Cleaning: If necessary, clean the exterior of the unit with a dry, lint-free cloth. Do not use liquid cleaners or solvents. Ensure the unit is powered off and disconnected from the mains before cleaning.
- Inspection: Periodically check for loose connections, damaged cables, or signs of overheating (discoloration). Ensure ventilation openings are clear of obstructions.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No output voltage / Green LED OFF | No input voltage; Blown fuse; Internal fault; Incorrect wiring. | Check input power supply; Check input fuse; Verify wiring connections; If fault persists, contact support. |
| Output voltage too low/high | Output voltage adjustment incorrect; Overload; Internal fault. | Adjust output voltage potentiometer; Check load for short circuits or excessive current draw; If fault persists, contact support. |
| Unit is hot | Insufficient ventilation; Overload. | Ensure adequate clearance around the unit; Reduce load; Check for obstructions in ventilation openings. |
7. Technical Specifications
| Parameter | Value |
|---|---|
| Brand | PHOENIX CONTACT |
| Model | UNO2-PS/1AC/24DC/480W |
| Input Type | Single-phase AC |
| Output Voltage | 24 V DC |
| Output Wattage | 480 W |
| Mounting Type | DIN Rail |
| ASIN | B08TCGVTMZ |
| UPC/GTIN | 709081473849 |
8. Warranty and Support
8.1 Warranty Information
PHOENIX CONTACT products are manufactured to high-quality standards. This product typically comes with a standard manufacturer's warranty. Please refer to the official PHOENIX CONTACT website or your purchase documentation for specific warranty terms and conditions applicable to your region.
8.2 Technical Support
For technical assistance, troubleshooting beyond this manual, or inquiries regarding spare parts, please contact PHOENIX CONTACT customer support. You can find contact information and additional resources on the official PHOENIX CONTACT website: www.phoenixcontact.com