B&R X20PS3300 X20 System Power Supply Module

Product Overview

The X20PS3300 (X20PS3300) is a high-efficiency power supply module designed to provide the necessary internal logic and I/O power for the B&R X20 System backplane. This module functions as a centralized power feed, converting an external 24 VDC input into the stabilized voltages required for downstream I/O slices and communication modules. Engineered for reliability in mission-critical industrial environments, the X20PS3300 is an essential component for modular control systems in automotive manufacturing, pharmaceutical processing, and renewable energy sectors. Its integrated diagnostic features and compact 12.5 mm width allow for maximum power density and system availability within standardized control cabinet layouts.

Technical Configuration

The power architecture of the X20PS3300 is optimized for safety and real-time monitoring within the X20 ecosystem.

• Regulated Power Feed: Accepts a nominal 24 VDC input with a wide tolerance range (20.4 to 28.8 VDC), ensuring stable operation even during voltage fluctuations in the primary factory power grid.

• Integrated Safety: Features a built-in, non-replaceable fuse that protects the internal system bus from overcurrent conditions and short circuits originating on the field side.

• Advanced Diagnostics: Equipped with dedicated LED indicators for "Overload," "Operating State," and "Module Status," allowing maintenance personnel to identify power distribution issues immediately without external tools.

• Low Thermal Impact: Designed for high efficiency with a maximum input current of 0.7 A, minimizing heat dissipation and allowing for high-density installation alongside sensitive analog modules.

Technical Specifications

FAQs

What is the primary role of the X20PS3300 compared to a bus controller's power supply?

While bus controllers have integrated power supplies for small configurations, the X20PS3300 is used to refresh the power on the X2X Link bus when the total power consumption of the connected I/O modules exceeds the controller's capacity.

What should I do if the "Overload" LED is active?

An active Overload LED indicates that the total current draw from the downstream modules is exceeding the X20PS3300's output rating. You must recalculate the power budget in Automation Studio and potentially add another X20PS3300 module to split the power segments.

Is the fuse replaceable if it blows?

No, the integrated fuse is a safety component designed to protect the backplane and is not user-replaceable. If the fuse is blown due to a catastrophic failure, the module must be replaced to ensure continued system protection.

Engineering Installation and Power Management Guidelines

• Power Budgeting: Before installation, use B&R Automation Studio to verify the power consumption of your I/O station. Ensure that the X20PS3300 is placed at a point in the rack where it can sufficiently supply all subsequent modules on the X2X Link without triggering the overload protection.

• Wiring Integrity: When connecting the external 24 VDC supply, use high-quality industrial wire with ferrules. Ensure the polarity is correct; although the X20 system is robust, reverse polarity can cause stress on protective components.

• Segment Isolation: The X20PS3300 can be used to create separate power segments for different types of I/O (e.g., separating digital and analog power). This prevents electrical noise from high-frequency switching on digital lines from affecting sensitive analog measurements.

• Thermal Consideration: In environments with ambient temperatures consistently above 50 deg C, ensure there is at least 10 mm of clearance above and below the X20 rack to facilitate natural convection cooling, as power supply modules are generally the warmest components in a station.