1. Introduktion
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the MEAN WELL MDR-40-24 DIN Rail Power Supply. Please read this manual thoroughly before using the product and retain it for future reference.
The MDR-40-24 is a 40W single output industrial DIN rail power supply, designed for installation on TS-35/7.5 or TS-35/15 standard DIN rails. It provides a stable 24V DC output with a current rating of 1.74A.
2. Sikkerhedsinstruktioner
WARNING: Risk of electric shock and fire. Installation must be performed by qualified personnel only.
- Ensure the power supply is disconnected from the main AC input before any installation, wiring, or maintenance work.
- Do not operate the unit in environments with high humidity, extreme temperatures, or corrosive substances.
- Kontroller, at input voltage range (90-264V AC) matches your local power supply.
- Sørg for korrekt jording for at forhindre elektrisk stød.
- Åbn ikke c'enasing of the power supply. There are no user-serviceable parts inside.
- Sørg for tilstrækkelig ventilation omkring enheden for at forhindre overophedning.
- Use conductors rated for at least 75°C.
- Terminal torque for connections should be 5 Lb-in.
3. Produktet er slutview
The MEAN WELL MDR-40-24 is a compact and efficient power supply designed for industrial control applications. Key features include:
- Universal AC input / Full range (90-264V AC)
- Beskyttelser: Kortslutning / Overbelastning / Over voltage / Overtemperatur
- Køling ved fri luftkonvektion
- Kan monteres på DIN-skinne TS-35/7.5 eller 15
- LED-indikator for tænding
- DC OK relækontakt

Figur 3.1: Forside view of the MDR-40-24 power supply, highlighting the input and output terminals, along with the product label detailing specifications and certifications.

Figur 3.2: Vinklet front view of the MDR-40-24, providing a clearer look at the terminal connections and the voltage justeringspotentiometer.

Figur 3.3: Bagside view of the MDR-40-24, illustrating the built-in clip mechanism for secure attachment to a DIN rail.

Figur 3.4: Top-down vinklet view of the MDR-40-24, highlighting the ventilation slots designed for passive cooling.
4. Opsætning og installation
4.1 Montering
- Ensure the main power is OFF before mounting.
- Mount the MDR-40-24 onto a standard TS-35/7.5 or TS-35/15 DIN rail.
- Ensure sufficient clearance (at least 10mm on top and bottom, 5mm on sides) for proper ventilation.
- The unit should be mounted vertically to allow for optimal heat dissipation through convection.
4.2 Ledningsforbindelser
Refer to the markings on the unit for correct terminal connections. Use appropriate wire gauges for the current rating.
- Input Terminals (AC):
- L: Live AC input
- N: Neutral AC input
: Beskyttende jordbund
- Output Terminals (DC):
- +V: Positive DC output (24V)
- -V: Negative DC output (0V / Ground)
- DC OK relækontakt:
- Provides a signal indicating the DC output status. Refer to the product datasheet for detailed relay specifications.
Note: Ensure all connections are secure and tightened to the specified torque of 5 Lb-in to prevent loose connections and potential hazards.
5. Betjeningsvejledning
5.1 Tænd
- After completing all wiring connections, switch on the main AC power supply.
- The "DC OK" LED indicator on the front panel should illuminate, indicating normal operation.
5.2 Udgang Voltage Justering
The MDR-40-24 features a potentiometer labeled "+V ADJ" on the front panel for fine-tuning the output voltage.
- Using a small screwdriver, carefully turn the potentiometer clockwise to increase the output voltage or counter-clockwise to decrease it.
- Overvåg output voltage with a multimeter to ensure it is within the desired range and does not exceed the maximum safe operating voltage for your connected devices.
Forsigtighed: Juster ikke udgangsvolumentage beyond the recommended range specified in the product datasheet to avoid damaging the power supply or connected equipment.
6. Vedligeholdelse
The MEAN WELL MDR-40-24 is designed for reliable operation and requires minimal maintenance.
- Rensning: Periodically clean the exterior of the unit with a soft, dry cloth. Do not use liquid cleaners or solvents. Ensure the unit is powered off and disconnected before cleaning.
- Ventilation: Ensure that the ventilation openings are not obstructed by dust or debris. Clear any blockages to maintain proper airflow.
- Inspektion: Kontroller regelmæssigt ledningsforbindelserne for tæthed og tegn på slid eller beskadigelse.
- Ingen dele, der kan serviceres af brugeren: Forsøg ikke at åbne eller reparere enheden. Overlad al service til kvalificeret servicepersonale.
7. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| No DC output / DC OK LED off |
|
|
| Udgang voltage for lav/høj |
|
|
| Enheden er overophedet |
|
|
8. Specifikationer
| Parameter | Værdi |
|---|---|
| Model | MDR-40-24 |
| Mærke | MENER GODT |
| AC -indgang VoltagRækkevidde | 90-264V AC |
| Udgang Voltage | 24V DC |
| Udgangsstrøm | 1.74A |
| Nominel effekt | 40W |
| Dimensioner (BxDxH) | 40 x 90 x 100 mm |
| Monteringstype | DIN Rail (TS-35/7.5 or 15) |
| Minimum frekvens | 50 Hz |
| Nuværende vurdering | 1.74 Amps |
| Specifikation Met | CE |
| Varens vægt | 0.01 ounces (ca. 0.28 gram) |
9. Garanti og support
For warranty information and technical support, please contact your authorized MEAN WELL distributor or visit the official MEAN WELL webwebsted. Gem din købskvittering for garantikrav.
MEAN WELL provides product documentation and support resources online. For the most up-to-date information, refer to the official product datasheet and user manuals available on the manufacturer's webwebsted.