1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the TDK-Lambda DSP60-24 DIN Rail Power Supply. The DSP60-24 is an AC-DC converter designed for industrial applications, offering a stable 24V/DC output with a power rating of 60W and a current of 2.5A. Its compact design and DIN rail mounting capability make it suitable for integration into various control cabinets and distribution boards.

Figure 1: TDK-Lambda DSP Series DIN Rail Power Supplies. The DSP60-24 model shares a similar appearance and form factor with the DSP60-5 shown.
2. Safety Instructions
Please read and understand all safety instructions before installing or operating the power supply. Failure to comply with these instructions may result in electric shock, fire, or damage to the product.
- Installation and maintenance should only be performed by qualified personnel.
- Ensure the power supply is disconnected from the main power source before any installation, wiring, or maintenance work.
- Do not operate the unit in wet or humid conditions, or in areas with flammable gases or vapors.
- Ensure proper ventilation to prevent overheating. Do not block ventilation openings.
- Verify correct input voltage and polarity before connecting to the power supply.
- Use appropriate wire gauges for input and output connections to handle the rated current.
3. Setup and Installation
3.1 Mounting
The DSP60-24 is designed for mounting on a standard 35mm DIN rail (EN 60715). Ensure the mounting surface is stable and capable of supporting the unit's weight.
- Hook the top edge of the power supply onto the DIN rail.
- Push the bottom edge of the power supply firmly until it clicks into place on the DIN rail.
- Verify that the unit is securely fastened and cannot be easily dislodged.
3.2 Wiring
Connect the input and output wiring to the screw terminals located on the unit. Refer to the labels on the power supply for correct terminal identification.
- Input Connections: Connect the AC input (L, N) and protective earth (PE) to the designated input terminals. The unit accepts a wide input range of 85-265V AC or 120-370V DC.
- Output Connections: Connect the DC load to the output terminals (+V, -V). Ensure correct polarity. The output voltage can be adjusted between 24V and 28V DC.
- Tighten all screw terminals securely to prevent loose connections, which can cause overheating or intermittent operation.
3.3 Initial Power-Up
After completing all wiring, apply power to the unit.
- Turn on the main power supply to the unit.
- Observe the status indicator (LED) on the front panel. A green LED typically indicates normal operation.
- Measure the output voltage with a multimeter to confirm it is within the desired range.
4. Operation
4.1 Output Voltage Adjustment
The output voltage of the DSP60-24 can be adjusted within a range of 24V to 28V DC. A potentiometer for adjustment is typically located on the front panel of the unit.
- Using a small screwdriver, carefully turn the adjustment potentiometer clockwise to increase the output voltage or counter-clockwise to decrease it.
- Monitor the output voltage with a multimeter during adjustment to ensure it reaches the desired level.
4.2 Status Indicators
The power supply features an LED indicator on its front panel to display its operational status:
- Green LED: Indicates normal operation and stable output voltage.
- Red LED (if present) or No LED: May indicate a fault condition, such as overload, over-temperature, or no input power. Refer to the troubleshooting section.
5. Maintenance
The TDK-Lambda DSP60-24 is designed for reliable operation with minimal maintenance. However, periodic checks can help ensure longevity and optimal performance.
- Cleaning: Ensure the ventilation openings are free from dust and debris. Use a soft, dry cloth for cleaning. Do not use liquid cleaners.
- Inspection: Periodically inspect wiring connections for tightness and signs of damage or discoloration. Check for any physical damage to the unit casing.
- Environmental Conditions: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent premature failure.
6. Troubleshooting
If the power supply is not functioning as expected, refer to the table below for common issues and potential solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No output voltage / No LED indicator | No input power; Blown fuse; Faulty wiring | Check input power source and connections; Inspect fuses; Verify wiring integrity. |
| Output voltage too low or unstable | Overload condition; Incorrect voltage adjustment; Input voltage too low | Reduce load; Adjust output voltage potentiometer; Check input voltage. |
| Unit is hot / Over-temperature shutdown | Insufficient ventilation; Ambient temperature too high; Overload | Ensure proper airflow; Reduce ambient temperature; Reduce load. |
| Output voltage cannot be adjusted | Faulty potentiometer; Internal fault | Contact customer support for assistance. |
7. Technical Specifications
Key technical specifications for the TDK-Lambda DSP60-24 power supply:
| Parameter | Value |
|---|---|
| Model Number | DSP-60-24 |
| Output Voltage | 24 V/DC (Adjustable 24-28 V/DC) |
| Output Current | 2.5 A |
| Output Power | 60 W |
| Input Voltage Range | 85 to 265 V/AC or 120 to 370 V/DC |
| Input Phase | 1 phase |
| Connection Type | Screw terminal |
| Dimensions (L x W x H) | 5.91 x 5.91 x 5.91 inches (approximate) |
| Item Weight | 8.8 ounces (250 Grams) |
| Operating Temperature | Output voltage without power reduction up to 61°C |
8. Warranty Information
TDK-Lambda products are manufactured to high standards and typically come with a manufacturer's warranty. For specific warranty terms and conditions applicable to your DSP60-24 unit, please refer to the documentation included with your product or visit the official TDK-Lambda website. Proof of purchase may be required for warranty claims.
9. Customer Support
For technical assistance, product inquiries, or service requests, please contact TDK-Lambda customer support. You can find contact information and additional resources on their official website:







