3PS477.92005 Power Supply Module

The 3PS477.92005 is a dedicated system power supply module developed by B&R Industrial Automation for the SYSTEM 2005 modular automation platform. Designed as a double-width plug-in unit for standard backplanes, it must be installed in the leftmost slot of the control rack to serve as the core power source for the entire rack system. Adopting industrial switching power supply technology and full electrical isolation design, this module converts external 24 VDC input into stable multi-channel DC power to support the operation of CPU, I/O, bus controller and other functional modules within the rack. It is integrated with an expansion slave interface, which can cooperate with expansion units to realize power supply extension for multi-rack systems. With compact mechanical layout and optimized heat dissipation structure, the module features high operational stability and strong anti-interference capability, and can operate continuously for a long time in complex industrial environments. It is widely used in various modular automation control systems as a standard power configuration unit for both new projects and equipment maintenance and upgrading.

The official model of the product is 3PS477.92005, an original B&R product manufactured in Austria, and it complies with the group’s global quality management system and international electrical standards. The module has obtained CE and cULus certifications, meeting EU and North American requirements for electrical safety and electromagnetic compatibility. Its protection degree is IP20 as defined by EN 60529, and it is suitable for indoor installation inside standard industrial control cabinets. The rated input voltage ranges from 18 VDC to 30 VDC (24 VDC nominal), with a maximum input current of 3.5 A. It provides two groups of DC outputs: 24 VDC with rated power of 50 W and 5 VDC with rated power of 40 W, and the total maximum output power reaches 60 W. A built-in 6.3 A slow-blow fuse rated for 250 V provides basic circuit protection. Multiple LED indicators on the front panel display power input status, output status and fault information in real time for quick status judgment. Parameter configuration, status monitoring and fault diagnosis can be completed via B&R Automation Studio software. This module is fully compatible with all series of functional modules of the B&R SYSTEM 2005 platform, and is supplied as original parts for global project deployment and equipment replacement.

The 3PS477.92005 acts as the central power supply unit for the B&R 2005 series control rack, undertaking the core task of providing stable and reliable DC power for all onboard modules. It adopts high-precision voltage regulation technology. When the input voltage fluctuates within the allowable range, the output voltage can remain stable, effectively avoiding system operation anomalies caused by power grid changes. In addition to conventional power supply, it also provides external RAM retention function by outputting 12 VDC (8 VDC to 30 VDC), which can prevent data loss of the system RAM during short power outages or voltage fluctuations.

This module is equipped with comprehensive safety protection mechanisms, including over-voltage, under-voltage, over-current, short-circuit and over-temperature protection. Once faults such as overload, short circuit or overheating occur, it will automatically cut off the power output and trigger an alarm to protect the module itself and all downstream equipment. The inrush current suppression design reduces the impact current during startup and minimizes the impact on the upper-level power supply.

Equipped with a dedicated expansion slave interface, the module can be connected to 2005 series expansion units to expand the power supply range, realizing unified power supply management for multi-rack distributed systems. In terms of system architecture, it can work independently for single-rack control systems, or form a combined power supply system with multiple modules for large-scale multi-rack systems. It supports hot swapping under non-fault conditions, facilitating on-site maintenance and module replacement without system shutdown. As a foundational core module of the SYSTEM 2005 platform, it matches all CPU modules, I/O modules, communication modules and bus control modules in the same product line, and is an essential component for building stable, expandable and highly reliable modular automation systems.

The 3PS477.92005 adopts high-efficiency switching power supply topology, with a nominal input voltage of 24 VDC and an allowable voltage fluctuation range of 18 VDC to 30 VDC, and the maximum input current is 3.5 A. It delivers two stable DC outputs: 24 VDC/50 W and 5 VDC/40 W, with a total output power of 60 W, maintaining high power conversion efficiency under both light load and full load conditions to reduce energy consumption and heat generation. Complete electrical isolation is designed between the input side and the output side, effectively enhancing electrical safety and electromagnetic interference resistance.

In terms of protection performance, all output circuits support fast over-current and short-circuit protection. The over-temperature protection function will be activated when the internal temperature exceeds the safety threshold to cut off power output and prevent component damage. The input side is equipped with surge suppression and electromagnetic filtering units to resist lightning surges and high-frequency interference from the power grid. The front-panel LED indicators clearly display input voltage normality, output voltage normality and fault status, enabling maintenance personnel to quickly locate faults.

Regarding environmental adaptability, the rated operating temperature ranges from 0°C to +60°C, and the storage temperature ranges from -25°C to +70°C. It can operate normally under a relative humidity of 5% to 95% non-condensing. The module has excellent vibration and shock resistance to adapt to mechanical vibration on industrial sites. As a double-width module for the 2005 series, it occupies two slot positions on the backplane and must be installed in the leftmost slot of the rack. The expansion slave interface follows B&R unified standards, ensuring stable signal and power transmission between the main unit and expansion units. The module supports 24-hour continuous operation, with low failure rate and long service life.

For on-site installation and wiring, users need to select industrial-standard 24 VDC input power cables, grounding cables and supporting wiring terminals that comply with safety specifications. The module is fully compatible with standard backplanes, racks and slot accessories of the B&R SYSTEM 2005 series, supporting fast plug-in and fixed installation. When expanding multi-rack systems, dedicated expansion connection cables and matching accessories for expansion slaves shall be equipped to realize power interconnection between the main rack and expansion racks.

B&R Automation Studio is the exclusive supporting software for this module, which can realize power parameter configuration, real-time operating status monitoring, fault log query and remote diagnosis. This power supply module can be matched with all CPU modules, digital/analog I/O modules, counter modules, bus controllers and human-machine interfaces of the 2005 series to form a complete modular automation control system. For redundant power supply scenarios, supporting parallel connection accessories and current sharing modules need to be configured to ensure balanced load distribution among multiple power supply units. In addition, standard industrial bus cables and Ethernet cables can be equipped according to system networking requirements to complete the construction of the whole control system.

The 3PS477.92005 power supply module is mainly applicable to all automation control systems built on the B&R SYSTEM 2005 platform, and is the standard power configuration for single-rack and multi-rack control systems. It is widely used in general machinery manufacturing, automated assembly lines, packaging machinery, textile machinery, printing and papermaking equipment, material conveying and lifting equipment, as well as industrial machine tool auxiliary control systems, intelligent logistics sorting equipment and food and beverage processing machinery.

Whether it is a small independent control system or a large-scale distributed control system with multiple racks, this module can provide stable and continuous power support. With comprehensive protection functions and high operational reliability, it is especially suitable for continuous production equipment that requires long-term non-stop operation and has high requirements for power supply stability. The standardized modular design simplifies the internal wiring and layout of the control cabinet, reduces the number of discrete power components, saves cabinet space and lowers the difficulty of subsequent equipment operation and maintenance. It is applicable to both the construction of new automation projects and the technical transformation, upgrading and power system reconstruction of old production lines, and can maintain stable operation in industrial sites with harsh temperature, humidity and electromagnetic conditions.

The 3PS477.92005 is an original genuine product of B&R Industrial Automation. All production, assembly, welding and testing processes are carried out in strict accordance with international industrial quality standards and the company’s internal process specifications. Each finished module undergoes multiple strict tests before leaving the factory, including full-load aging test, voltage fluctuation test, protection function test, anti-interference test and communication matching test, to ensure consistent and reliable product quality. The product has passed CE and cULus certifications and complies with international electrical safety and electromagnetic compatibility standards.

Adopting high-quality electronic components and rigorous industrial design, the module features low power consumption, low failure rate, long service life and strong environmental adaptability, and can cope with complex industrial conditions such as temperature changes, humidity and strong electromagnetic interference. B&R has a complete global quality assurance system and after-sales service network, providing users with professional technical consultation, installation guidance, power debugging, fault troubleshooting and long-term after-sales support. As a mature power supply product widely verified in global industrial sites, it is a reliable choice for power configuration and system expansion of B&R 2005 series automation systems.