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1756-PSCA2

Allen-Bradley 1756-PSCA2 | Redundant Power Supply Adapter

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  • Manufacturer: Allen-Bradley

  • Product No.: 1756-PSCA2

  • Product Type: Adapter Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 450g

  • Shipping port: Xiamen

  • Warranty: 12 months

30 kunlik qaytarish siyosati · 12 oylik kafolat
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Product Overview

The Allen-Bradley 1756-PSCA2 is a high-performance Chassis Adapter Module designed for the ControlLogix system. It serves as the vital physical link for redundant power supply configurations, allowing two power supplies to be connected to a single ControlLogix chassis. This module ensures maximum system uptime by enabling seamless power redundancy, making it a critical component for high-availability industrial automation applications.

Core Technical Details

Chassis Connectivity

The 1756-PSCA2 mounts directly onto the left side of a standard 1756 ControlLogix chassis. It provides the necessary backplane interface to distribute power from redundant supply cables, maintaining system stability without occupying a functional I/O slot.

Thermal Management

Designed for efficient operation, this module manages power dissipation effectively, supporting up to 25.7 W at 30°C. Its robust hardware architecture is built to withstand the thermal demands of fully loaded chassis environments.

Technical Specifications

Part Number 1756-PSCA2
Series ControlLogix
Backplane Current 125 mA @ 24V DC
Operating Temp 0°C to 60°C (32°F to 140°F)
Unit Weight Approximately 0.45 kg (1.0 lb)
Vibration/Shock 2g @ 10-500 Hz / 30g Operating

Installation & Maintenance

Mechanical Mounting

The module features a compact footprint of 3.4 x 15.1 x 14.4 cm. Always ensure the chassis power is disconnected before sliding the 1756-PSCA2 onto the chassis power connectors. Secure the mounting screws to maintain ground continuity.

Redundancy Setup

Connect the redundant power supply cables (typically from 1756-PAR2 or 1756-PBR2 supplies) to the ports on the adapter. Verify that both supplies are operational via the status indicators on the power supply units themselves.

Engineering Advantages

The 1756-PSCA2 is engineered for missions where downtime is not an option. By facilitating redundant power, it protects the ControlLogix backplane from single-point power failures. Its high shock and vibration resistance make it suitable for heavy industrial use, including oil and gas, automotive, and wastewater treatment facilities.

Technical FAQs

Q1: Does the 1756-PSCA2 supply power itself?
A1: No, it is a passive adapter. It facilitates the connection between external redundant power supplies and the chassis backplane.

Q2: Can I use this with a standard non-redundant power supply?
A2: No. This module is specifically designed for redundant power supply systems. Standard 1756 power supplies mount directly to the chassis without this adapter.

Q3: What is the maximum humidity for operation?
A3: The module operates reliably up to 95% relative humidity, provided there is no condensation. For high-humidity environments, ensure the enclosure is properly rated.

🏷️ Tags: Adapter Module
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