Allen-Bradley 1762-IQ8 MicroLogix DC Discrete Input Module

Description

The Allen-Bradley 1762-IQ8 is a reliable DC discrete input module designed to expand the input capabilities of MicroLogix 1100, 1200, 1400, and 1500 programmable logic controllers. Serving as a single-slot expansion unit, this module integrates seamlessly into your automation system to monitor discrete field signals in various industrial control architectures. Built to deliver consistent performance, it features robust optical isolation and accommodates standard 24VDC sensor inputs.

Engineered for industrial environments, the 1762-IQ8 supports both DIN rail and direct panel mounting configurations to accommodate cabinet layout requirements. It is well-suited for discrete monitoring tasks in manufacturing plants, packaging machinery, material handling systems, and general machine automation where reliable digital signal acquisition is critical.

Features

• Provides 8 sinking/sourcing (IEC Type 1 compatible) DC input channels
• Compatible with MicroLogix 1100, 1200, 1400, and 1500 programmable controllers
• Supports flexible DIN rail or direct panel mounting options
• Equipped with removable terminal blocks for easier wiring and maintenance
• Optical isolation between the I/O terminals and the controller backplane
• Status indicators (LED) for clear visual confirmation of individual input states

Applications

• Discrete signal monitoring for automated assembly lines
• Sensor and limit switch data acquisition in packaging machinery
• Conveyor system status tracking in material handling
• General machine control and discrete automation panels

Technical Specifications

Connections / Interfaces

The module features a removable screw-clamp terminal block located on the front, allowing field wiring to be connected or disconnected easily without disturbing the module housing. Channel status LEDs provide immediate feedback on active inputs, while the integrated bus connector links the module directly to the base controller or preceding expansion I/O module.

Installation Guidelines

• Mount the module securely on a EN 50022 DIN rail or directly to a panel using mounting screws.
• Maintain a minimum installation clearance of 2 inches (50 mm) on all sides of the module to ensure proper airflow and ventilation.
• Ensure the host controller power is turned off before connecting or disconnecting expansion modules.
• Use appropriate wire sizing (typically 22 to 14 AWG) for secure connections to the removable terminal block.