1. Pengenalan
This manual provides essential information for the safe and efficient operation of the MEAN WELL LRS-350-24 Single Output Switchable Power Supply. Please read this manual thoroughly before installation and use.
Figure 1: MEAN WELL LRS-350-24 Power Supply. This image shows the enclosed power supply unit with its ventilation grille, terminal block, and model label.
2. Maklumat Keselamatan
- Pastikan pembumian yang betul untuk mengelakkan kejutan elektrik.
- Jangan kendalikan unit dalam keadaan basah atauamp syarat.
- Sahkan input voltage selection switch (115VAC/230VAC) is set correctly before connecting to power. Incorrect setting can cause damage.
- Pemasangan hendaklah dilakukan oleh pegawai yang berkelayakan.
- Jangan buka bekalan kuasa casing; tiada bahagian yang boleh diservis pengguna di dalamnya.
- Pastikan pengudaraan yang mencukupi untuk mengelakkan terlalu panas.
- Putuskan sambungan kuasa sebelum melakukan sebarang penyelenggaraan atau perubahan pendawaian.
3. Produk Lebihview
3.1 Ciri-ciri
- AC input range selectable by a switch.
- Withstands 300 VAC surge input for 5 seconds.
- No load power consumption below 0.75W.
- Pro rendah 1Ufile reka bentuk.
- High operating temperature, up to 70°C.
- Perlindungan: Litar pintas, Lebihan beban, Lebih voltage, Over temperature.
- Built-in cooling fan with ON-OFF control.
- Compliance to UL 60950-1.
- Withstands 5G vibration test.
- High efficiency, long life, and high reliability.
- LED indicator for power on status.
- 100% beban penuh ujian terbakar dalam.
- Waranti 3 tahun.
3.2 Aplikasi
- Industrial automation machinery.
- Industrial control systems.
- Mechanical and electrical equipment.
- Electronic instruments, equipment, or apparatus.
Gambar 2: Lebihview of LRS-350 series features and typical applications. This image displays a summary of the power supply's capabilities and suitable uses.
4. Persediaan dan Pemasangan
4.1 Semakan Pra-Pemasangan
Before installation, ensure the power supply is undamaged and that all necessary components are available. Verify the input voltage requirement of your application matches the power supply's capabilities.
4.2 Input AC Voltage Pemilihan
The LRS-350-24 features an AC input range selectable by a switch. Locate the switch on the side of the unit. Set it to either 115VAC (for 90-132VAC input) or 230VAC (for 180-264VAC input) according to your local mains voltage. Failure to set this correctly can result in damage to the unit.
4.3 Sambungan Pendawaian
Connect the power supply using the screw terminal block. Refer to the mechanical specification diagram for terminal assignments.
- Input AC: Connect Live (L), Neutral (N), and Ground (FG) to the corresponding input terminals.
- Output DC: Connect the positive (+) and negative (-) load wires to the DC OUTPUT terminals.
Figure 3: Mechanical dimensions and terminal block assignments for the LRS-350 series. This diagram provides physical measurements and pinout details for wiring.
4.4 Pemasangan
Mount the power supply in a location that allows for adequate airflow around the unit, especially near the cooling fan. Use appropriate screws and mounting points as indicated in the mechanical specification diagram.
5. Arahan Operasi
5.1 Hidupkan
After ensuring all connections are secure and the AC input voltage switch is correctly set, apply AC power. The LED indicator on the unit will illuminate, indicating that the power supply is operational.
5.2 Keluaran Voltage Pelarasan
Keluaran voltage can be finely adjusted using the potentiometer located near the output terminals. Use a small screwdriver to carefully turn the potentiometer to achieve the desired output voltage within the specified range (typically 21.6V to 28.8V for the 24V model).
5.3 Operasi Kipas Penyejuk
The built-in cooling fan operates with ON-OFF control, activating automatically when the internal temperature reaches a certain threshold to maintain optimal operating conditions. It will turn off when the temperature drops.
6. Penyelenggaraan
The LRS-350-24 power supply is designed for long-term reliability with minimal maintenance. However, periodic checks can help ensure optimal performance.
- Pembersihan: Ensure ventilation openings are free from dust and debris. Use a soft, dry cloth or compressed air to clean the exterior. Do not use liquid cleaners.
- Sambungan: Periodically check all wiring connections to ensure they remain tight and secure.
- Persekitaran: Maintain the operating environment within specified temperature and humidity ranges to prolong the unit's lifespan.
7. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada keluaran voltage / LED off |
|
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| Keluaran voltage too low or unstable |
|
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| Fan is loud or constantly running |
|
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8. Spesifikasi
Detailed electrical and mechanical specifications for the MEAN WELL LRS-350-24 power supply.
Figure 4: Comprehensive specification table for the LRS-350 series, including input, output, protection, and environmental data.
| Parameter | Nilai |
|---|---|
| Model | LRS-350-24 |
| Primary Output Voltage (VDC) | 24 |
| Arus Keluaran (A) | 14.6 |
| Kuasa Output Maksimum (W) | 350.4 |
| Input Voltage (VAC) | 90 to 132 / 180 to 264 (selectable) |
| Kekerapan Input (Hz) | 47 hingga 63 |
| Arus Input Maksimum (A) | 6.8 |
| Jenis Penyambung Output | Blok Terminal Skru |
| Bilangan Keluaran | 1 |
| Faktor Bentuk | Terlampir |
| Dimensi Produk (L x W x H) | 8.46 x 1.18 x 4.53 inci |
| Berat Barang | 1.64 paun |
| Kaedah Penyejukan | Air (Built-in fan) |
| Suhu Operasi | Sehingga 70°C |
| Perlindungan | Litar pintas, Lebihan beban, Lebih voltage, Lebih suhu |
| Pematuhan | UL 60950-1 |
| Waranti | 3 tahun |
Figure 5: Block diagram illustrating the internal structure and performance curves (derating, static characteristics) of the LRS-350 series.
9. Waranti dan Sokongan
The MEAN WELL LRS-350-24 power supply comes with a Waranti 3 tahun dari tarikh pembelian. Waranti ini melindungi kecacatan pada bahan dan mutu kerja di bawah penggunaan biasa.
For technical support, warranty claims, or service inquiries, please contact your authorized MEAN WELL distributor or reseller. Do not attempt to repair the unit yourself, as this will void the warranty and may pose safety risks.
