Allen-Bradley 1769-PA4 Compact I/O Power Supply Module: Comprehensive Product Overview

Product Introduction

The Allen-Bradley 1769-PA4 is a high-performance power supply module specifically designed for the CompactLogix and Compact I/O systems from Rockwell Automation. As a critical component in industrial automation systems, this module ensures stable and reliable power distribution to controllers and I/O modules, enabling seamless operation in various manufacturing and process control environments. The 1769-PA4 exemplifies Rockwell Automation's commitment to quality, durability, and performance, making it a trusted choice for engineers and system integrators worldwide.

Key Features and Technical Specifications

The 1769-PA4 power supply module boasts several notable features that enhance its functionality and reliability in industrial settings:

• Wide Input Voltage Range: The module accepts input voltages from 85-132V AC or 170-265V AC (selectable via a switch), with a frequency range of 47-63 Hz

• .

• Dual Output Channels: It provides two output channels: 5V DC at 4A and 24V DC at 2A

• . This dual output capability ensures compatibility with various controllers, sensors, and actuators commonly used in industrial automation

• .

• High Efficiency and Stability: The module converts AC input to DC output with high efficiency, minimizing energy loss and heat generation

• . Its stable output voltage ensures consistent performance of connected devices, even during prolonged operation

• .

• Comprehensive Protection Mechanisms: To safeguard both the power supply and connected equipment, the 1769-PA4 includes over-current protection, over-voltage protection, and short-circuit protection

• . These features help prevent damage from electrical faults and enhance system reliability.

• Robust Environmental Adaptability: Designed for harsh industrial environments, the module operates effectively within a temperature range of 0°C to 60°C (32°F to 140°F) and relative humidity levels of 5% to 95% (non-condensing)

• . Its IP20 rating provides basic protection against solid particles but requires installation in a suitable enclosure for protection against liquids

• .

• Compact and Versatile Installation: The module features a compact form factor (approximately 87mm x 94mm x 92mm) and supports DIN rail mounting or panel mounting

• . This flexibility simplifies integration into existing control cabinets and saves valuable space.

Here is a detailed table of its specifications:

Applications and Use Cases

The Allen-Bradley 1769-PA4 power supply module is engineered for reliable performance in diverse industrial automation applications. Its robust design and stable power output make it suitable for:

• Manufacturing Automation: Providing consistent power to PLCs, sensors, and actuators on production lines, ensuring uninterrupted operation of assembly robots, conveyor systems, and packaging machinery

• .

• Process Control Systems: Supporting critical processes in industries such as chemical, oil and gas, water treatment, and pharmaceuticals, where stable power is essential for monitoring and controlling flow, pressure, and temperature

• .

• Material Handling and Logistics: Powering control systems in automated storage and retrieval systems (AS/RS), sortation equipment, and conveyor networks in distribution centers

• .

• Building Automation: Integrating into HVAC control systems, access control systems, and energy management systems in commercial and industrial buildings

• .

System Integration and Installation

Integrating the 1769-PA4 into a CompactLogix or Compact I/O system is straightforward. The module can be mounted on a standard DIN rail or panel-mounted using appropriate hardware

.

The power supply can support up to 16 I/O modules (8 on each side) in a Compact I/O system, providing 5V DC at 4A and 24V DC at 2A to the backplane

.

Comparative Advantages

The 1769-PA4 offers several advantages over generic power supplies:

• Seamless Compatibility: Designed specifically for Allen-Bradley's CompactLogix and Compact I/O systems, it ensures perfect electrical and mechanical integration, reducing compatibility issues

• .

• Enhanced Reliability: Built to industrial standards, it features high-quality components and robust construction that ensure long service life and minimal downtime

• .

• Comprehensive Safety Features: With built-in protection against over-current, over-voltage, and short-circuit conditions, it enhances the safety of the entire control system

• .

• Global Certifications: Compliance with CE, UL, cUL, and other international standards ensures its suitability for use in various regions and industries

• .

Conclusion

The Allen-Bradley 1769-PA4 Compact I/O Power Supply Module is a critical component for ensuring the reliability and efficiency of industrial automation systems. Its wide input voltage range, dual output channels, comprehensive protection features, and robust environmental adaptability make it an excellent choice for a variety of applications. By providing stable and clean power to controllers and I/O modules, the 1769-PA4 helps maintain the integrity and performance of automation systems, minimizing downtime and maximizing productivity.

For engineers and system integrators seeking a dependable power solution for CompactLogix and Compact I/O systems, the 1769-PA4 represents a blend of proven performance, ease of integration, and long-term durability that is characteristic of the Allen-Bradley brand.