1. Introducció
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Mean Well EDR-120-24 AC/DC DIN Rail Power Supply. The EDR-120 series is an economical, slim 120W power supply designed for industrial applications. It is suitable for installation on TS-35/7.5 or TS-35/15 mounting rails, featuring a compact 40mm width for space-saving within cabinets. This unit operates effectively in ambient temperatures between -20℃ and 60℃ under air convection.
Please Note: The EDR series is primarily for industrial applications. For household applications, please choose the NDR series.
2. Informació de seguretat
Llegiu atentament totes les instruccions abans de la instal·lació i el funcionament. Si no seguiu aquestes instruccions, podeu patir descàrregues elèctriques, incendis o lesions greus.
- Personal qualificat: La instal·lació i el manteniment només els ha de dur a terme personal qualificat.
- Desconnexió d'alimentació: Always disconnect the main power supply before any installation, wiring, or maintenance work.
- Connexió a terra adequada: Assegureu-vos de posar a terra adequadament per evitar descàrregues elèctriques.
- Ventilació: Maintain adequate ventilation around the unit. Do not obstruct ventilation openings.
- Condicions ambientals: Operate the power supply within the specified temperature and humidity ranges. Avoid exposure to moisture or corrosive environments.
- Especificacions del cable: Use copper wire only, rated for a minimum of 75℃.
- Ús industrial: This product is designed for industrial control equipment.
3. Producte acabatview i Característiques
The EDR-120-24 is a robust AC/DC power supply offering reliable performance for various industrial needs. Key features include:
- Sortida: 24 V, 5 A, 120 W.
- Entrada Voltage: 90 ~ 264VAC / 124 ~ 370VDC.
- Proteccions: Short circuit, Overload, Over Voltage, Sobretemperatura.
- Eficiència: High efficiency of 87.5% (typical).
- Certificacions: UL and CE certified, UL 508 (Industrial Control Equipment) approved.
- Disseny compacte: Slim 40mm width for space-saving DIN rail mounting.
- Refrigeració: Refrigeració per convecció d'aire.
Figura 1: Frontal view of the Mean Well EDR-120-24 power supply, showing input/output terminals, voltage adjustment, and DC OK indicator.
4. Especificacions mecàniques
The EDR-120-24 features a compact design suitable for DIN rail mounting. Detailed dimensions are provided below.
Figure 2: Mechanical drawing of the EDR-120-24, showing top, side, front, and bottom views with dimensions in millimeters (tolerance ±1mm).
Assignació de pins de terminal
| Pin núm. | Encàrrec |
|---|---|
| 1 | FG (Frame Ground) |
| 2 | AC/N or DC - |
| 3 | AC / L o DC + |
| Pin núm. | Encàrrec |
|---|---|
| 1,2 | SORTIDA DC -V |
| 3,4 | SORTIDA DC +V |
5. Instal·lació (Configuració)
Follow these steps for proper installation of the EDR-120-24 power supply.
5.1 Muntatge
- The EDR-120-24 is designed for DIN rail mounting on TS-35/7.5 or TS-35/15 rails.
- Ensure sufficient clearance for air circulation. A minimum of 5mm left and right, 40mm above, and 20mm below the power supply is recommended for optimal cooling.
- To mount, hook the top edge of the power supply onto the DIN rail, then push the bottom edge firmly until it clicks into place.
Figura 3: lateral view il·lustració del mecanisme de muntatge en carril DIN.
5.2 Cablejat
All connections are made via screw terminal blocks. Refer to the Terminal Pin Assignment tables in Section 4.
- Input Wiring (TB1): Connect the AC mains (L, N) or DC input (+, -) to the corresponding terminals. Ensure the Frame Ground (FG) terminal is properly connected to earth ground. The input voltagEl rang és de 90-264 VCA o 127-370 VCC.
- Output Wiring (TB2): Connect your load to the DC OUTPUT +V and -V terminals.
- Tipus de cable: Use copper wire only, rated for a minimum of 75℃.
- Parell: Ensure terminal screws are tightened to the specified torque (Input: 6.5 Lb-in, Output: 5.5 Lb-in) to prevent loose connections.
Figura 4: Example wiring diagrams for different input configurations. Always refer to the product label for specific terminal markings.
6. Funcionament
Once installed and wired correctly, the EDR-120-24 is ready for operation.
- Encès: Apply the specified AC or DC input voltage.
- DC OK Indicator: A green LED labeled "DC OK" will illuminate when the output voltage està dins del rang acceptable.
- Vol. De sortidatage Ajust: El voltage can be finely adjusted using the "+V ADJ" potentiometer located on the front panel. Use a small screwdriver to turn the potentiometer clockwise to increase voltage or counter-clockwise to decrease it.
7. Manteniment
The EDR-120-24 is designed for long-term reliability with minimal maintenance. However, periodic checks are recommended.
- Neteja: Keep the unit clean and free from dust and debris, especially around ventilation openings, to ensure proper air convection cooling. Use a soft, dry cloth for cleaning.
- Comprovacions de connexió: Periodically inspect all wiring connections for tightness and signs of corrosion. Re-tighten screws if necessary after disconnecting power.
- Seguiment ambiental: Assegureu-vos que l'entorn de funcionament es mantingui dins dels límits de temperatura i humitat especificats.
8. Solució De Problemes
Si la font d'alimentació no funciona com s'espera, tingueu en compte els problemes habituals següents:
- No Output / DC OK LED Off:
- Check input power connections and voltage.
- Verify that the input fuse (if external) is intact.
- Check for short circuits or overloads on the output. Disconnect the load and re-test.
- Assegureu-vos que la temperatura ambient estigui dins del rang de funcionament.
- Funcionament intermitent:
- Comproveu si hi ha connexions de cablejat soltes.
- Verify that the load current does not exceed the rated output current (5A). Overload protection may be activating.
- Ensure adequate ventilation to prevent over-temperature shutdown.
- Volum de sortida incorrectetage:
- Adjust the "+V ADJ" potentiometer.
- Verifiqueu el vol d'entradatage is stable and within the specified range.
If problems persist after checking these points, contact qualified service personnel or the manufacturer.
9. Especificacions tècniques
| Paràmetre | Valor |
|---|---|
| Nom del model | EDR-120-24 |
| Vol. De sortidatage | 24 V |
| Corrent nominal | 5A |
| Potència de sortida | 120W |
| Entrada Voltage Rang | 90 ~ 264VAC / 127 ~ 370VDC |
| Freqüència d'entrada | 47 a 63 Hz |
| Eficiència (Tipus) | 87.5% |
| Onda i soroll (màx.) | 120 mVp-p |
| Regulació de la línia | 0.5% |
| Regulació de càrrega | 1% |
| Minimum Isolation Voltage | 3000 VCA |
| Proteccions | Short circuit, Overload, Over Voltage, Sobretemperatura |
| Temperatura de funcionament | -20 ℃ a 60 ℃ |
| Mètode de refrigeració | Convecció d'aire |
| Dimensions (L x A x A) | 113.5 x 40 x 125.2 mm (4.47 x 1.57 x 4.93 polzades) |
| Muntatge | Carril DIN |
| Pes | 600 g |
| Certificacions | UL, CE, EU RoHS Compliant |
10. Garantia i Suport
This Mean Well power supply is manufactured to high-quality standards. For warranty information, please refer to the documentation provided with your purchase or contact your distributor. For technical support or service inquiries, please reach out to the seller or the official Mean Well support channels.
Manufacturer: MEAN WELL ENTERPRISES CO., LTD.
Distributed by: KAINSC PRODUCTS KAWAGUCH INDUSTRIAL SCIENTIFIC