Product Introduction
The Allen‑Bradley 1771‑P6R/C Redundant Power Supply Module is a rack-mounted power supply designed for use in the Allen‑Bradley 1771 PLC‑5 I/O System. It provides regulated DC power to the PLC backplane while supporting redundant power configurations for improved system reliability.
This module converts incoming AC power into stable 5 VDC output, which is distributed through the chassis backplane to power installed I/O modules. With an output capacity / 8 amperes, the 台 can support multiple digital, analog, and communication modules operating simultaneously within the same rack.
The 1771-P6R/C is commonly deployed in industrial automation systems where continuous operation and high availability are essential. When used in redundant configurations, the module helps maintain system power even if one power supply fails, ensuring that PLC processes continue running without interruption.
Product Specifications
| Parameter | Specification |
|---|---|
| モデル | 1771-P6R/C |
| ブランド | Allen-Bradley |
| Module Type | Redundant Power Supply Module |
| Series | 1771 PLC-5 I/O Series |
| Input Voltage | 220 VAC |
| Input Frequency | 50 / 60 Hz |
| Output Voltage | 5 VDC |
| Output Current | 8 A |
| Power Supply Architecture | Redundant Backplane Power |
| Installation Method | 1771 I/O Chassis Mount |
| Backplane Power Distribution | Supplies power to installed I/O modules |
| Dimensions | 165 × 51 × 89 mm |
| 重量 | 0.9 kg |
Applications
• PLC rack power distribution
The module supplies regulated 5 VDC backplane power to PLC racks containing multiple 1771 I/O modules.
• Redundant automation systems
In mission-critical automation environments, redundant power configurations help maintain system operation during a power supply failure.
• Industrial manufacturing systems
Factories rely on PLC racks powered by this module to control production lines, automated machinery, and monitoring systems.
• Process industry control systems
Chemical plants and refineries utilize PLC power modules to support control / valves, pumps, sensors, and process equipment.
• Energy and utility infrastructure
Power stations and water treatment facilities use redundant PLC power supplies to ensure continuous monitoring and system control.
Advantages
• Redundant power support
The module enables PLC systems to operate with backup power supply configurations, improving overall system reliability.
• Stable DC backplane output
It delivers regulated 5 VDC output with 8 A capacity, supporting multiple I/O modules within a rack.
• Reliable AC to DC power conversion
The internal design ensures stable voltage output even under varying input power conditions.
• Industrial-grade reliability
The module is built for industrial environments where electrical noise, load changes, and environmental stress are common.
• Easy rack installation
It mounts directly in the 1771 chassis and distributes power through the system backplane without complex wiring.
• Compatibility with PLC-5 systems
The module integrates seamlessly with legacy 1771 PLC-5 automation platforms, supporting system upgrades and maintenance.
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