The Allen-Bradley 1756-PAR2 is a high-performance redundant power system that belongs to the ControlLogix product line.
Overview
The 1756-PAR2 is a bundled system comprising essential components for achieving power redundancy in industrial automation applications. It is specifically designed for critical applications that require minimizing downtime and ensuring continuous operation.
System Composition
The 1756-PAR2 system consists of:
- Two 1756-PA75R Power Supplies: These serve as the redundant power units, providing failsafe protection. They are engineered to meet the demanding requirements of critical applications.
- Two 1756-CPR2 Cables: These cables are used to connect the two power supplies, enabling synchronization and internal communication. The length of these cables is suitable for easy layout and connection within the chassis.
- One 1756-PSCA2 Chassis Adapter Module: This is a passive device that integrates the installed pair of power supplies into a single power connector on the ControlLogix chassis backplane circuit, ensuring stability and reliability of the power system.
Power Specifications
The specifications for the 1756-PA75R power supplies are as follows:
- Input Voltage Range: 85 to 264 VAC, 47 to 63 Hz. The nominal input voltage is 120/240 VAC, with a nominal input frequency of 50/60 Hz.
- Output Power: The maximum output power is 75 watts.
- Current Capacity: The current capacity varies depending on the voltage. For example, at 3.3 V DC, it is 4 A; at 5.1 V DC, it is 13 A; and at 24 V DC, it is 2.8 A.
System Features
The 1756-PAR2 redundant power system offers the following features:
- High Performance: It provides stable and reliable power output, meeting the demands of high-performance applications.
- Redundancy Design: With its redundant power design, the system ensures continuous operation in the event of a single power supply failure, enhancing reliability and stability.
- Ease of Installation and Maintenance: The components are designed for easy installation and maintenance within the ControlLogix chassis.
- Broad Compatibility: It is compatible with other components in the ControlLogix series, facilitating system integration and expansion.
Application Scenarios
The 1756-PAR2 redundant power system is suitable for the following application scenarios:
- Critical Applications: Such as data centers, medical facilities, and industrial automation control systems, where high reliability and stability of the power supply are crucial.
- Systems Requiring High Availability: Including online transaction systems and real-time monitoring systems, which need to ensure continuous operation in the event of power failures.
In summary, the Allen-Bradley 1756-PAR2 is a high-performance, redundant power system designed for critical applications and systems requiring high availability. Its stable power output, redundancy design, and ease of installation and maintenance make it an ideal solution for industrial automation and control applications.
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