1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your MEAN WELL RSP-2000-48 AC/DC enclosed switching power supply. The RSP-2000-48 is a high-performance 2016W power supply designed for various industrial and commercial applications requiring a stable 48V DC output.
Please read this manual thoroughly before installing or operating the unit and retain it for future reference. Proper adherence to these instructions will ensure optimal performance and longevity of the product.
2. Safety Instructions
WARNING: Risk of electric shock and energy hazard. Installation must be performed by qualified personnel only.
- Ensure the power supply is disconnected from the AC mains before any installation, wiring, or maintenance procedures.
- Verify that the input voltage range of the power supply matches your local AC mains voltage. The RSP-2000-48 features universal AC input (90~264VAC).
- Proper grounding is essential to prevent electric shock. Connect the protective earth (PE) terminal to a reliable ground connection.
- Do not operate the unit in environments with high humidity, excessive dust, or corrosive substances. This unit is designed for indoor use.
- Ensure adequate ventilation around the power supply. Do not block the cooling fan or air vents. Maintain sufficient clearance for airflow.
- Do not open the power supply casing. There are no user-serviceable parts inside. Opening the casing voids the warranty.
- Avoid touching live terminals when the unit is powered on.
3. Product Overview
The MEAN WELL RSP-2000-48 is a 2016W single-output enclosed type power supply with a 1U low profile design. It incorporates advanced features for high reliability and efficiency.
Key Features:
- 1U low profile design (41mm height).
- Universal AC input / Full range (90~264VAC).
- Built-in active Power Factor Correction (PFC) function.
- Protections: Short circuit, Overload, Over voltage, Over temperature, Fan alarm.
- Forced air cooling by built-in DC fan.
- High power density up to 21.4W/in³.
- Output voltage (Vo) can be trimmed by external control signal.
- Built-in current sharing function up to 4 units.
- Built-in remote sense and ON/OFF control.
- Built-in auxiliary power.
- DC OK signal output.
- Alarm signal output.
Component Identification:
Refer to the diagram below for the location of input/output terminals, control signals, and indicators.
Figure 1: RSP-2000-48 Front and Side View with Terminal Labels
This image illustrates the physical layout of the RSP-2000-48 power supply, highlighting the AC input terminals, DC output terminals, fan location, and various control signal connectors. Understanding these locations is crucial for correct installation and operation.
4. Setup and Installation
4.1 Mounting
- Mount the power supply in a well-ventilated area to ensure proper heat dissipation.
- Ensure sufficient clearance (at least 10-15 cm) around the unit, especially near the fan intake and exhaust.
- Use appropriate screws and mounting hardware to secure the unit firmly to a stable surface.
- The unit can be mounted horizontally or vertically, but ensure the fan is not obstructed.
4.2 Wiring Connections
All wiring must comply with local electrical codes and standards. Use appropriate wire gauges for the expected current loads.
- AC Input Connection: Connect the AC mains (Line, Neutral, Earth) to the designated input terminals. Ensure the Earth terminal is securely connected to a protective ground.
- DC Output Connection: Connect the DC output terminals (+V and -V) to your load. Observe correct polarity.
- Remote Sense (Optional): For applications requiring precise voltage regulation at the load, connect the remote sense terminals (+S and -S) to the load's positive and negative terminals, respectively. This compensates for voltage drop across the output cables.
- ON/OFF Control (Optional): The unit features a remote ON/OFF control. Refer to the detailed wiring diagram for specific connections to enable or disable the output remotely.
- Current Sharing (Optional): For parallel operation of multiple RSP-2000-48 units to increase total output power, connect the current sharing pins (CS) of up to four units. Ensure all units are of the same model and output voltage.
- Auxiliary Power (Optional): An auxiliary power output may be available for external control circuits. Consult the product datasheet for specifications.
Figure 2: Typical Wiring Diagram for RSP-2000-48
This diagram illustrates the standard and optional wiring connections for the RSP-2000-48 power supply. It shows how to connect AC input, DC output, and the various control signals like remote sense and current sharing for proper system integration.
5. Operating Instructions
5.1 Powering On/Off
- After all connections are securely made and verified, apply AC mains power to the unit.
- The built-in fan will start operating, and the DC OK indicator (if present) should illuminate, indicating stable output voltage.
- To power off, disconnect the AC mains supply.
5.2 Output Voltage Adjustment (Vo Trim)
The output voltage can be finely adjusted using an external control signal. Refer to the product datasheet for the specific voltage range and control method (e.g., external potentiometer or DC voltage signal). This allows for precise tuning of the 48V output to meet specific application requirements.
5.3 Monitoring Signals
- DC OK Signal: This signal indicates that the DC output voltage is within its specified operating range.
- Alarm Signal: This signal activates in case of a fault condition, such as over-temperature, over-voltage, or fan failure.
6. Maintenance
The RSP-2000-48 power supply is designed for high reliability and requires minimal maintenance. However, periodic checks can help ensure optimal performance and extend its lifespan.
- Visual Inspection: Periodically inspect the unit for any signs of damage, loose connections, or excessive dust accumulation.
- Cleaning: If dust accumulates on the fan or vents, gently clean them using compressed air or a soft brush. Ensure the power supply is disconnected from the mains before cleaning. Do not use liquid cleaners.
- Fan Operation: Listen for any unusual noises from the cooling fan. A failing fan can lead to overheating.
- Environmental Conditions: Ensure the operating environment remains within the specified temperature and humidity ranges.
7. Troubleshooting
If the power supply is not functioning as expected, refer to the following troubleshooting guide. Always disconnect the AC mains before inspecting any connections.
| Problem | Possible Cause | Solution |
|---|---|---|
| No output voltage / Unit not powering on |
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| Output voltage unstable or too low |
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| Unit shuts down unexpectedly |
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| Fan not operating or making unusual noise |
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8. Specifications
| Parameter | Value |
|---|---|
| Model | RSP-2000-48 |
| Output Voltage | 48V DC |
| Output Current | 42A |
| Output Power | 2016W |
| Input Voltage Range | 90 ~ 264VAC (Universal AC input) |
| Form Factor | 1U Low Profile |
| Dimensions (L x W x H) | 295 x 127 x 41mm |
| Cooling Method | Forced air cooling by built-in DC fan |
| Protections | Short circuit, Overload, Over voltage, Over temperature, Fan alarm |
| PFC Function | Built-in active PFC |
| Current Sharing | Up to 4 units |
9. Warranty and Support
9.1 Warranty Information
The MEAN WELL RSP-2000-48 power supply comes with a 5-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service conditions. The warranty does not cover damage caused by improper installation, misuse, unauthorized modifications, or natural disasters.
Please retain your proof of purchase for warranty claims.
9.2 Technical Support
For technical assistance, troubleshooting beyond this manual, or warranty service, please contact your authorized MEAN WELL distributor or dealer. You can also visit the official MEAN WELL website for additional resources, datasheets, and contact information.
When contacting support, please have your product model number (RSP-2000-48) and purchase details readily available.
