X20PS2100 B&R X20 Internal I/O Power Supply Module

Product Overview

The X20PS2100 (X20PS2100) is a high-efficiency power supply module designed for the B&R X20 I/O system, specifically engineered to provide a stable internal I/O supply for downstream modules. In large-scale automation architectures—such as those found in automotive assembly, power plant monitoring, and chemical processing—the cumulative power demand of multiple I/O slices can exceed the capacity of a single bus controller. The X20PS2100 acts as a power booster, injecting fresh 24 VDC potential into the internal I/O bus to ensure consistent signal integrity and prevent voltage drops across extensive backplane configurations. Its compact, modular design integrates seamlessly into any X20 station, providing localized power management and enhanced system reliability.

Technical Configuration

The X20PS2100 hardware is designed for a nominal 24 VDC input with a robust tolerance range of -15% to +20%, allowing for reliable operation despite fluctuations in the primary DC rail. It is equipped with dedicated LED status indicators that provide real-time feedback on the operating state and overall module status, facilitating rapid troubleshooting. The module is strictly intended for supplying the internal I/O bus (field side) and includes hardware-level protection to safeguard the connected electronic slices. To ensure system safety, the module requires an external 10 A slow-blow fuse to protect against overcurrent conditions on the supply line.

Technical Specifications

Technical FAQs

When is it necessary to add an X20PS2100 to my I/O station?

You should add an X20PS2100 whenever the total power consumption of the connected I/O modules exceeds the supply capacity of the bus controller or the previous power supply module. This is common in stations with many high-draw modules like relays, solenoids, or high-density analog outputs.

Does this module provide power to the X2X Link (Logic) bus?

No. The X20PS2100 is specifically for the internal I/O (field) supply. Logic power for the bus communication is handled by the bus controller or specific power supply modules designed for the X2X Link.

Can I use a fast-acting fuse instead of a slow-blow fuse?

It is strongly recommended to use a 10 A slow-blow fuse as specified. Power supply modules often experience a brief inrush current during startup; a fast-acting fuse may trip prematurely, causing unnecessary system interruptions.

How do the status LEDs assist in maintenance?

The LEDs provide immediate visual confirmation that the module is receiving power and that the internal bus supply is active. If the "Module Status" LED indicates an error, it allows technicians to quickly isolate power issues from communication or I/O faults.

Engineering & Installation Guide

• Bus Segment Isolation: When inserting the X20PS2100 into an I/O rack, it effectively starts a new "power segment." Ensure that the modules following the X20PS2100 are compatible with the voltage being injected and that the total current draw of that segment does not exceed the module's rated output.

• Wiring and Grounding: Use high-quality 24 VDC conductors with a cross-section appropriate for a 10 A circuit. To minimize electromagnetic interference (EMI) on the I/O bus, ensure the supply cables are routed away from high-voltage AC lines and that the X20 system grounding rail is properly bonded to the central cabinet ground.

• Thermal Consideration: While the X20PS2100 is a highly efficient switching regulator, it does generate heat when operating at full capacity. Maintain standard X20 vertical mounting to allow for natural convection. Avoid placing it directly next to high-heat-generating components like servo drives or large transformers.