Allen-Bradley 1762-OA8 Solid-State Output Module for MicroLogix Systems

Solid-State Output Module for Reliable AC Load Control

Industrial automation often requires switching AC loads with high reliability and minimal wear. The Allen-Bradley 1762-OA8 is a solid-state output module designed to meet this need. It provides eight AC triac outputs, making it suitable for controlling solenoids, contactors, and indicator lights in harsh environments.

Technical Specifications Breakdown

Key parameters for the 1762-OA8 are listed below for quick reference:

Industry Applications

In packaging lines, it can control conveyor solenoids and pneumatic valves. In material handling, it manages motor contactors and indicator lights. The solid-state design eliminates mechanical wear, reducing maintenance costs over time. The 1762-OA8 is also well-suited for HVAC systems, switching fans or damper actuators with high cycle rates. Its compact form factor saves panel space, a critical advantage when retrofitting existing cabinets.

Installation and Setup Guidance

Mount the module on a grounded metal panel to ensure proper noise immunity. Before wiring, inspect the terminal block for any metal fragments that could cause shorts. Keep the finger-safe cover in place during wiring; once removed, the cover cannot be reinstalled due to wire positioning. Follow the wiring and grounding guidelines provided by Allen-Bradley for optimal performance. The module connects directly to the MicroLogix backplane, requiring no additional cabling.

Maintenance and Reliability

The solid-state design of the 1762-OA8 provides high reliability with no moving contacts to wear. Periodically inspect the module for dust accumulation and ensure adequate airflow around the enclosure. Operating temperature range is 32 to 131 degrees Fahrenheit, while non-operating storage can handle -40 to 185 degrees Fahrenheit. The module complies with NEMA ICS 2-230, EN50081-2 Class A, IEC1000-4-2, and IEC1000-4-3 standards, ensuring robust performance in industrial environments.

Compatibility and Integration

The 1762-OA8 is compatible with MicroLogix 1100, MicroLogix 1200, and MicroLogix 1400 programmable controllers. It uses the standard 1762 I/O bus, drawing a maximum bus current of 115 mA at 5 Volts DC. The module features two commons for flexible wiring of AC loads. Integration is straightforward: simply insert the module into an available slot in the chassis and configure the output points in your control program.

Selection Guide and Purchasing Advice

When selecting an output module, consider the load type and voltage requirements. For DC loads, consider a DC output module instead. AutoDCSTech offers this module with fast shipping and expert support. Please verify current lifecycle status and availability with AutoDCSTech before ordering. Our team can help you confirm compatibility with your existing system.