1. Introduzione
This manual provides detailed instructions for the MEAN WELL LRS-35-24 35W 24V 1.5A Enclosed AC/DC Power Supply. Please read this manual thoroughly before installation and operation to ensure safe and efficient use of the product.
Figura 1.1: Oltreview of LRS-35 series features and typical applications.
1.1 Caratteristiche principali
- Universal AC input / Full range (85 ~ 264 VAC).
- Withstands 300 VAC surge input for 5 seconds.
- Consumo energetico senza carico <0.2W.
- Compact size and 1U low profile.
- High operating temperature up to 70 °C.
- Protezioni: Cortocircuito, Sovraccarico, Over voltage.
- Raffreddamento per convezione ad aria libera.
- Compliance with IEC/EN 60335-1 (PD3) and IEC/EN61558-1, -2-16 for household appliances.
- Operating altitude up to 5000 meters.
- Withstands 5G vibration test.
- High efficiency, long life, and high reliability.
- Indicatore LED di accensione.
- 100% test di burn-in a pieno carico.
2. Istruzioni di sicurezza
AVVERTIMENTO: Improper installation or use can lead to electric shock, fire, or other hazards. Always follow these safety guidelines.
- Personale qualificato: L'installazione e la manutenzione devono essere eseguite solo da personale qualificato.
- Disconnessione dell'alimentazione: Always disconnect the AC power before any installation, wiring, or maintenance work.
- Messa a terra corretta: Assicurarsi che l'alimentatore sia correttamente collegato a terra per evitare scosse elettriche.
- Ventilazione: Do not obstruct the ventilation openings. Ensure adequate airflow for cooling.
- Ambiente: Do not operate in environments with excessive moisture, dust, or extreme temperatures outside the specified range.
- Protezione da sovraccarico: Do not exceed the specified output current or power ratings to prevent damage and fire hazards.
- Isolamento: Assicurarsi che tutti i collegamenti siano adeguatamente isolati per evitare cortocircuiti.
- Voltage Regolazione: Il volume di uscitatage adjustment potentiometer should only be adjusted by qualified personnel using appropriate tools.
3. Prodotto finitoview
The LRS-35-24 is a 35W single-output enclosed type power supply with a 30mm low profile design. It features a metallic mesh case for enhanced heat dissipation.
Figura 3.1: Fronte view of the LRS-35-24 power supply.
Figura 3.2: in alto view of the LRS-35-24 power supply showing input and output terminals.
3.1 Terminal Pin Assignment
Refer to the diagram below for the correct terminal connections.
Figure 3.3: Mechanical specification and terminal pin assignment. Pin 1: AC/L, Pin 2: AC/N, Pin 3: FG (Frame Ground), Pin 4: DC Output -V, Pin 5: DC Output +V.
| Pin No. | Assegnazione |
|---|---|
| 1 | AC/L (Live AC Input) |
| 2 | AC/N (Neutral AC Input) |
| 3 | FG (terra del telaio) |
| 4 | DC OUTPUT -V (Negative DC Output) |
| 5 | DC OUTPUT +V (Positive DC Output) |
4. Configurazione e installazione
Follow these steps for proper installation of the power supply.
- Montaggio: Mount the power supply in a well-ventilated area. Ensure sufficient clearance around the unit for proper air convection. The unit can be mounted horizontally or vertically, but consider the airflow direction for optimal cooling. Refer to the mechanical specifications for mounting hole dimensions (Figure 3.3).
- Wiring Input (AC):
- Connect the AC Live wire to the 'L' terminal (Pin 1).
- Connect the AC Neutral wire to the 'N' terminal (Pin 2).
- Connect the Frame Ground wire to the 'FG' terminal (Pin 3). This connection is critical for safety.
- Ensure all input wires are securely fastened and have appropriate gauge for the current draw.
- Wiring Output (DC):
- Connect the positive (+) load wire to the '+V' terminal (Pin 5).
- Connect the negative (-) load wire to the '-V' terminal (Pin 4).
- Verify correct polarity before connecting to the load device.
- Ensure all output wires are securely fastened and have appropriate gauge for the current draw.
- Voltage Regolazione: Il volume di uscitatage can be finely adjusted using the 'V ADJ' potentiometer located near the output terminals. Use a non-conductive screwdriver for adjustment. Non superare il volume specificatotage gamma.
- Controllo finale: Before applying power, double-check all wiring connections for correctness, security, and proper insulation.
5. Istruzioni per l'uso
Once the power supply is correctly installed and wired, it is ready for operation.
- Accensione: Apply AC power to the input terminals. The green LED indicator on the unit will illuminate, indicating that the power supply is active and providing output voltage.
- Volume di uscitatage: The power supply will provide a stable 24V DC output. If adjustment is needed, refer to the "Voltage Adjustment" step in the Setup section.
- Connessione di carico: Connect your DC load device to the output terminals, ensuring correct polarity.
- Monitoraggio: Observe the LED indicator. If it is off, check the input power and connections.
5.1 Derating Curve and Static Characteristics
The performance of the power supply can be affected by ambient temperature and input voltage. Refer to the following curves for optimal operation.
Figure 5.1: Derating curve showing load percentage vs. ambient temperature, and static characteristics showing load percentage vs. volume di inputtage.
- Curva di derating: Shows the maximum permissible load at different ambient temperatures. For temperatures above 50°C, the output power must be derated to prevent overheating.
- Caratteristiche statiche: Illustrates how the output load capacity is maintained across the input voltage gamma.
6. Manutenzione
The LRS-35-24 power supply is designed for long-term reliability with minimal maintenance. However, periodic checks can help ensure optimal performance.
- Pulizia: Ensure the ventilation holes are free from dust and debris. Use a soft, dry brush or compressed air to clean the unit if necessary. Do not use liquid cleaners.
- Verifiche della connessione: Periodically inspect all input and output wiring connections to ensure they remain secure. Loose connections can cause intermittent operation or overheating.
- Condizioni ambientali: Verificare che l'ambiente operativo rimanga entro gli intervalli di temperatura e umidità specificati.
- Ispezione visiva: Look for any signs of physical damage, discoloration, or unusual odors. If any issues are observed, disconnect power immediately and consult a qualified technician.
7. Risoluzione Dei Problemi
Questa sezione fornisce soluzioni ai problemi più comuni che potresti riscontrare.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Nessun volume di uscitatage / LED spento | Nessuna alimentazione in ingresso CA Collegamenti elettrici allentati Guasto interno | Controllare la fonte di alimentazione CA e l'interruttore automatico. Verificare che tutti i collegamenti dei cavi di ingresso e di uscita siano sicuri. If power is present and connections are good, the unit may be faulty. Contact support. |
| Volume di uscitatage fluttua o è errato | Condizione di sovraccarico Carico difettoso Voltage adjustment potentiometer disturbed | Reduce the load to within specifications. Scollegare il carico e testare l'alimentazione in modo indipendente. Carefully adjust the 'V ADJ' potentiometer to the desired voltage. |
| Unit is excessively hot | Ventilazione insufficiente Condizione di sovraccarico Alta temperatura ambiente | Assicurare un adeguato flusso d'aria attorno all'unità. Rimuovere eventuali ostruzioni. Reduce the load. Check the derating curve (Figure 5.1). Relocate the unit to a cooler environment if possible. |
| Audible noise from unit | Normal operation (slight hum) Overload or fault condition | A slight hum can be normal. If noise is loud or unusual, check for overload. Disconnect power and contact support if noise persists and is concerning. |
For issues not covered here, please contact MEAN WELL technical support.
8. Specifiche
Detailed technical specifications for the LRS-35-24 power supply.
Figure 8.1: Comprehensive technical specifications for the LRS-35 series, including input, output, protection, and environmental data.
| Parametro | Valore |
|---|---|
| Modello | Codice articolo: LRS-35-24 |
| Volume DCtage | 24V |
| Corrente nominale | 1.5A |
| Potenza nominale | 36W |
| Voltage Gamma (Input) | 85 ~ 264 VCA |
| Gamma di frequenza | Frequenza |
| Efficienza | 88% |
| Temperatura di esercizio | Temperatura -30 ~ +70 °C |
| Dimensioni (L x P x A) | Dimensioni: 99 x 82 x 30 mm |
| Peso | 0.23 kg |
| Protezione | Cortocircuito, sovraccarico, volume eccessivotage |
| Standard di sicurezza | Approvato UL60950-1, TUV EN60950-1, EN60335-1, EN61558-1/-2-16, CCC GB4943 |
9. Garanzia
This MEAN WELL LRS-35-24 power supply comes with a Garanzia di 2 anno from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by improper installation, misuse, unauthorized modifications, or external factors such as power surges or natural disasters.
For warranty claims, please retain your proof of purchase and contact your retailer or MEAN WELL customer support.
10. Supporto e informazioni di contatto
For technical assistance, troubleshooting, or further information regarding the MEAN WELL LRS-35-24 power supply, please refer to the official MEAN WELL websito o contattare il servizio clienti.
- Ufficiale Websito: www.meanwell.com
- Manuali: Specific product manuals can often be found at www.meanwell.com/manual.html
- Contatto: Fare riferimento alla sezione "Contattaci" sul sito ufficiale websito per i dettagli sul supporto regionale.