The P220-EU is a dedicated, regulated switching power supply unit (PSU) designed specifically to power EL-PL-SL Series Safety Light Curtains, both the Receiver (RX) and Transmitter (TX) units. It ensures stable and reliable operation of these critical safety devices in industrial environments by converting a wide range of AC input voltage to the precise DC voltage required by the light curtains.
This model is designed for use in European and international markets with its wide input voltage range and complies with relevant CE and other international standards.
Key Features
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Wide Range AC Input: Accepts a broad input voltage from 185 to 300 VAC, making it suitable for areas with unstable power grids and compatible with common industrial voltages (e.g., 230VAC).
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Stabilized DC Output: Provides a clean, regulated 24 VDC output, which is the standard operating voltage for industrial sensors and safety devices like the EL-PL-SL light curtains.
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Dual Output Capability: Can power both the Receiver (RX) and Transmitter (TX) units of a light curtain pair simultaneously from a single power supply.
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High Inrush Current Protection: Includes circuitry to limit the inrush current at startup, protecting the PSU and the connected devices.
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Compact and Robust Design: Housed in a compact, durable case suitable for installation in control cabinets or industrial panels.
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LED Status Indicator: Features a Power-On LED indicator for quick visual confirmation of operation.
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Safety Compliant: Designed to meet CE standards for electromagnetic compatibility (EMC) and Low Voltage Directive (LVD), ensuring safe and interference-free operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | P220-EU |
| Input Voltage | 185 – 300 VAC, 50/60 Hz |
| Output Voltage | 24 VDC, Regulated |
| Output Current | Typically 1.0A – 1.5A (Please verify exact rating for your specific light curtain model) |
| Efficiency | High efficiency (>80%) typical for switching power supplies. |
| Protection | Overload and Short-Circuit Protection. Inrush Current Limiting. |
| Connections | Screw terminal or plug-in connector block for secure input and output wiring. |
| Operating Temperature | Typically -10°C to +50°C (or as specified for the light curtain system). |
| Safety Standards | CE Marked, compliant with relevant EMC and LVD standards. |
| Compatibility | Designed for use with EL-PL-SL Series Safety Light Curtains (e.g., models like PNOZ m EF 1.2P, or similar from brands like Pilz). |
Purpose and Function
The primary role of the P220-EU is to act as the central power hub for a paired light curtain system. Safety light curtains are critical for machine guarding, creating an invisible infrared beam array. If a beam is broken (e.g., by a person’s hand), the system sends a stop signal to the machine.
The PSU ensures this system operates flawlessly by:
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Providing Clean Power: Filtering out noise and voltage fluctuations from the main AC supply.
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Ensuring Voltage Stability: Delivering a constant 24 VDC, preventing malfunctions or false trips caused by under-voltage or over-voltage.
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Simplifying Wiring: Allowing both the RX and TX units to be powered from a single source, reducing component count and wiring complexity.
Typical Applications
This power supply is used wherever EL-PL-SL light curtains are deployed for personnel safety, including:
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Press Brakes and Punch Presses
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Robotic Workcells
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Automated Assembly Lines
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Packaging Machinery
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Material Handling Systems
