The Nabco PSU-22 Power Source Unit is a robust and reliable power supply solution designed specifically for industrial automation and control systems. Built with precision engineering, this unit ensures stable voltage delivery and high efficiency, even in demanding environments. It serves as a critical component in maintaining the operational integrity of pneumatic and electronic control loops.

 

Technical Datasheet

• Product Name: NABCO PSU-22 Power Source Unit
• Model Keyword: NABCO PSU-22
• Input Voltage: 100-240V AC (Adaptive)
• Output Voltage: 24V DC
• Current Rating: 2.2A
• Dimensions: 125mm x 45mm x 115mm
• Weight: 0.85 kg
• Country of Origin: Japan
• Enclosure Rating: IP20 (Industrial Grade)
• Operating Temperature: -10°C to +60°C

 

Application Areas

The PSU-22 is widely utilized in sectors requiring precise power management. Key applications include:

• Pneumatic Control Systems: Providing stable energy to solenoid valves and actuators.
• Factory Automation: Powering PLC modules and sensor networks.
• Marine Engineering: Used in shipboard control panels due to its vibration resistance.
• Oil & Gas: Reliable performance in monitoring and safety shut-off systems.

 

Operating Instructions

1. Mounting: Secure the unit onto a standard 35mm DIN rail. Ensure there is at least 20mm of clearance above and below the unit for natural convection cooling.
2. Wiring: Connect the AC input leads to the designated L and N terminals. Ensure the ground terminal is properly connected to prevent electrical interference.
3. Voltage Adjustment: If your specific application requires a slight deviation from the standard 24V, use the front-facing potentiometer to fine-tune the output.
4. Status Monitoring: Observe the LED indicator. A steady green light confirms that the output voltage is within the normal range.
5. Safety: Always disconnect the primary power source before attempting to modify wiring or replace the unit.

Q&A: Frequently Asked Questions

What happens if the unit overheats? The PSU-22 features an integrated thermal protection circuit. If internal temperatures exceed safe limits, the unit will automatically reduce its output or shut down to prevent permanent damage. It will resume operation once cooled.

Can this unit be used in high-vibration environments? Yes, Nabco power units are specifically engineered for industrial and marine use, featuring reinforced internal components that resist vibration and mechanical shock.

Does the PSU-22 support parallel connection? Standard PSU-22 units are designed for independent operation. For redundant or parallel configurations, please consult the specific wiring diagram to ensure load sharing modules are utilized correctly.

How do I troubleshoot a “No Output” condition? First, verify that the input AC voltage is present at the terminals. If the input is correct but the LED is off, check for a short circuit on the DC load side. The unit’s short-circuit protection may have triggered.

 

Similar Model Recommendations

• Nabco PSU-20
• Nabco PSU-24
• Nabco PS-110
• Nabco PSC-22 High-Current Series
• Nabco PVE-24-10 Power Module