MEAN WELL NDR-120-24 DIN Rail Power Supply User Manual

1. Introduktion

The MEAN WELL NDR-120-24 is a high-performance 120W industrial DIN rail power supply designed for reliable and efficient power conversion. It features a universal AC input range and provides a stable 24V DC output, making it suitable for a wide range of industrial control applications, automation equipment, and other demanding environments. This manual provides essential information for the safe and effective installation, operation, and maintenance of your NDR-120-24 power supply.

2. Sikkerhedsinstruktioner

Please read and understand all safety instructions before installing or operating the device. Failure to comply with these instructions may result in electric shock, fire, or serious injury.

• Kvalificeret personale: Installation og vedligeholdelse bør kun udføres af kvalificeret personale.
• Strømafbrydelse: Afbryd altid strømmen før installation, ledningsføring eller vedligeholdelse.
• Korrekt jording: Ensure the device is properly grounded to prevent electric shock.
• Ventilation: Sørg for tilstrækkelig ventilation omkring enheden for at forhindre overophedning. Bloker ikke ventilationsåbningerne.
• Miljøforhold: Operate the device within the specified temperature and humidity ranges. Avoid exposure to moisture, dust, and corrosive substances.
• Ledningsføring: Use appropriate wire gauges and ensure all connections are secure. Refer to the product label for terminal torque specifications.
• Overbelastningsbeskyttelse: Do not overload the power supply beyond its rated output.

3. Produktfunktioner

• Peak to Peak Power
• Universal AC-indgang / fuld rækkevidde
• Beskyttelser: Kortslutning / Overbelastning / Over voltage / Overtemperatur
• Køling ved fri luftkonvektion
• Kan monteres på DIN-skinne TS-35/7.5 eller 15
• UL 508 (industrielt kontroludstyr) godkendt
• EN61000-6-2 (EN50082-2) industrial immunity level
• 100 % fuld belastning indbrændingstest
• Kompakt størrelse

4. Specifikationer

5. Opsætning og installation

The NDR-120-24 is designed for easy installation on standard DIN rails (TS-35/7.5 or TS-35/15).

5.1 Montering

To mount the power supply, align the top clip of the unit with the top edge of the DIN rail. Push the bottom of the unit firmly towards the rail until it clicks into place. Ensure the unit is securely fastened.

Figure 5.1: NDR-120-24 mounted on a DIN rail. This image shows the power supply securely attached to a standard industrial DIN rail, demonstrating its intended installation method.

For optimal cooling, ensure there is sufficient clearance around the unit, especially above and below, to allow for free air convection.

5.2 Ledningsforbindelser

Connect the input and output wires to the appropriate terminals. Refer to the labels on the unit for correct polarity and connection points. Use copper wire only, with a minimum temperature rating of 75°C.

• Input Terminals (L, N, ⌂): Connect the AC line (L), neutral (N), and protective earth (⌂) wires.
• Output Terminals (-V, +V): Connect the DC load to the negative (-V) and positive (+V) output terminals.
• Terminalmoment: Ensure all terminal screws are tightened to 6.5 Lb-in (0.74 Nm) to ensure secure electrical contact and prevent loosening due to vibration.

Figur 5.2: Nærbillede view of the input and output terminals on the NDR-120-24. This image highlights the screw terminals for AC input (L, N, Ground) and DC output (-V, +V), along with the voltage adjustment potentiometer and DC OK indicator.

After wiring, double-check all connections for correctness and security before applying power.

6. Betjeningsvejledning

6.1 Tænd

Once the unit is securely mounted and wired, apply the specified AC input voltage (100-240VAC). The "DC OK" indicator LED on the front panel will illuminate when the output voltage is within the acceptable range, indicating normal operation.

Figur 6.1: Forside view of the NDR-120-24, showing the input/output specifications, the MEAN WELL logo, and the DC OK indicator LED. This provides an overall view of the product's front panel.

6.2 Udgang Voltage Justering

Output voltage can be finely adjusted using the "+V ADJ" potentiometer located on the front panel. Use a small, insulated screwdriver to carefully turn the potentiometer clockwise to increase the voltage eller mod uret for at mindske den. Overvåg udgangsvolumentage with a multimeter during adjustment to ensure it meets your application requirements.

Figure 6.2: Detail of the +V ADJ potentiometer and DC OK indicator. This image specifically highlights the adjustable voltage knob and the status LED for operational checks.

7. Vedligeholdelse

The NDR-120-24 power supply is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure optimal performance and longevity.

• Rensning: Periodically clean the exterior of the unit to remove dust and debris, especially from ventilation openings. Use a soft, dry cloth. Do not use liquid cleaners or solvents.
• Ventilationskontrol: Ensure that the ventilation openings are not obstructed and that there is adequate airflow around the unit.
• Tilslutningskontrol: Periodically inspect all wiring connections to ensure they remain tight and secure. Loose connections can lead to overheating or intermittent operation.
• Miljøtjek: Kontroller, at driftsmiljøet holder sig inden for de angivne temperatur- og fugtighedsgrænser.

No user-serviceable parts are inside the unit. Do not attempt to open or repair the power supply. Refer all servicing to qualified service personnel.

8. Fejlfinding

This section provides solutions to common issues you might encounter with your NDR-120-24 power supply.

If the problem persists after attempting these solutions, contact qualified service personnel or MEAN WELL customer support for assistance.

9. Garanti og support

MEAN WELL products are manufactured to high quality standards and are typically covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official MEAN WELL webwebsted.

For technical support, service, or inquiries regarding your NDR-120-24 power supply, please contact your authorized MEAN WELL distributor or visit the manufacturer's official webwebsted for kontaktoplysninger:

Officiel Webwebsted: www.meanwell.com