1. Pengenalan
The MEAN WELL LRS-50-24 is a 50W single-output enclosed type power supply designed with a low profile of 30mm. It accepts a full range AC input from 85V to 264V. This model specifically provides a 24V DC output.
Ciri-ciri utama termasuk:
- Universal AC input / Full range (85~264VAC)
- Withstands 300VAC surge input for 5 seconds
- No load power consumption less than 0.2W
- Saiz miniatur dan pro rendah 1Ufile reka bentuk
- Suhu operasi tinggi sehingga 70°C
- Perlindungan: Litar pintas, Lebihan beban, Lebih voltage
- Penyejukan melalui perolakan udara bebas
- Compliance with IEC/EN 60335-1(PD3) and IEC/EN61558-1, -2-16 for household appliances
- Ketinggian operasi sehingga 5000 meter
- Withstands 5G vibration test
- Kecekapan tinggi, jangka hayat, dan kebolehpercayaan yang tinggi
- Penunjuk LED untuk menghidupkan kuasa
- 100% ujian terbakar beban penuh
Gambar 1: Lebihview of MEAN WELL LRS-50-24 features and applications.
2. Maklumat Keselamatan
Please read this section carefully before installation and operation to ensure safe use and prevent damage to the unit or connected equipment.
- Keselamatan Elektrik: Installation should be performed by qualified personnel. Ensure all wiring complies with local and national electrical codes.
- Input Voltage: Sahkan bahawa input AC voltage is within the specified range of 85-264VAC before connecting the power supply.
- Pembumian: Always connect the Frame Ground (FG) terminal to a proper earth ground to prevent electric shock.
- Pengudaraan: Ensure adequate free air convection around the unit. Do not obstruct ventilation holes. Maintain sufficient clearance from other components to prevent overheating.
- Perlindungan Lebihan: Do not exceed the rated output power of 50W. Overloading can cause the unit to shut down or be damaged.
- Keadaan Persekitaran: Operate the power supply within the specified temperature and humidity ranges. Avoid exposure to moisture, dust, and corrosive substances.
3. Produk Lebihview
The LRS-50-24 power supply features a compact, enclosed metal case with a perforated design for heat dissipation. It includes a terminal block for secure wiring connections and an LED indicator for operational status.
Rajah 2: Umum view of the MEAN WELL LRS-50-24 power supply.
4. Pemasangan dan Pendawaian
Follow these steps for proper installation and wiring of the LRS-50-24 power supply:
- Pemasangan: Mount the power supply in a location that allows for adequate free air circulation. Ensure the unit is securely fastened.
- Pendawaian Input: Connect the AC input wires to the terminal block. The terminals are typically labeled 'L' (Line), 'N' (Neutral), and 'FG' (Frame Ground). Ensure correct polarity and a secure ground connection.
- Pendawaian Output: Connect the DC output wires to the terminal block. The terminals are typically labeled '+V' (Positive Output) and '-V' (Negative Output). Ensure correct polarity for your connected device.
- Voltage Pelarasan: If necessary, the output voltage can be finely adjusted using the '+V ADJ' potentiometer located near the output terminals. Use a small screwdriver for this adjustment.
- Semakan Akhir: Sebelum menggunakan kuasa, periksa semula semua sambungan untuk memastikan ketat dan kekutuban yang betul.
Rajah 3: Jarak dekat view of the terminal block and labels for wiring connections.
5. Operasi
Once properly installed and wired, apply AC power to the unit. The built-in LED indicator will illuminate, signifying that the power supply is operational and providing output voltage. The unit is designed for continuous operation within its specified parameters.
6. Protections and Troubleshooting
The LRS-50-24 power supply incorporates several protection mechanisms:
- Perlindungan Litar pintas: The unit will protect against short circuits at the output.
- Perlindungan Lebihan: If the output current exceeds the rated limit, the unit will enter protection mode.
- Lebih Voltage Perlindungan: Protects connected devices from excessive output voltage.
In case of an issue, consider the following troubleshooting steps:
- No Output / LED Off: Semak vol input ACtage and ensure all input connections are secure. Verify the input fuse (if external) is intact.
- Intermittent Output: This may indicate an overload condition. Reduce the load connected to the power supply.
- Voltan Output Salahtage: Check the '+V ADJ' potentiometer setting. If still incorrect, verify the load is within specifications.
- Terlalu panas: Ensure proper ventilation and ambient temperature are within the specified range. Remove any obstructions to airflow.
If problems persist after performing these checks, discontinue use and contact technical support.
7. Spesifikasi Teknikal
Detailed specifications for the MEAN WELL LRS-50-24 power supply:
| Parameter | Spesifikasi |
|---|---|
| Model | LRS-50-24 |
| Keluaran Voltage | 24V DC |
| Nilai Semasa | 2.2A |
| Kuasa Dinilai | 50W |
| Voltage Julat Pelarasan | 21.6 ~ 28.8V |
| Input Voltage Julat | 85 ~ 264VAC, 120 ~ 373VDC |
| Julat Kekerapan | 47 ~ 63Hz |
| Kecekapan (Jenis) | 88% |
| Suhu Operasi | -30 ~ +70°C |
| Suhu Penyimpanan | -40 ~ +85°C |
| Kelembapan Operasi | 20 90 ~% RH tidak terkondensasi |
| Getaran | 10 ~ 500Hz, 5G 10min/1cycle |
| Piawaian Keselamatan | UL60950-1, TUV EN60950-1, EN60335-1, EN61558-1/-2-16, CCC GB4943 approved |
| Menahan Voltage | I/P-O/P:3.75KVAC, I/P-FG:2KVAC, O/P-FG:1.25KVAC |
| Dimensi (L x W x H) | 99 x 82 x 30mm (3.9 x 3.23 x 1.18 inci) |
| Berat Barang | 0.23 kg (0.48 lbs) |
| Kaedah Penyejukan | Perolakan udara percuma |
Figure 4: Detailed specifications table for the LRS-50 series, including LRS-50-24.
8. Performance Characteristics and Block Diagram
Understanding the performance characteristics and internal block diagram can aid in system design and troubleshooting.
8.1. Gambarajah Blok
The block diagram illustrates the internal architecture of the power supply, showing the main functional stages from AC input to DC output.
8.2. Derating Curve
The derating curve indicates the maximum permissible output load as a function of ambient temperature. Operating within the specified curve ensures optimal performance and longevity.
8.3. Static Characteristics
The static characteristics graph shows the relationship between input voltage and output load, demonstrating the power supply's stability across its operating range.
Figure 5: Block diagram, derating curve, and static characteristics for the LRS-50 series.
9. Waranti dan Sokongan
The MEAN WELL LRS-50-24 power supply comes with a Waranti 3 tahun dari tarikh pembelian, meliputi kecacatan pada bahan dan mutu kerja di bawah penggunaan biasa.
For technical support, warranty claims, or further assistance, please contact your authorized MEAN WELL distributor or the manufacturer directly. Provide your product model number (LRS-50-24) and purchase details when seeking support.