Allen-Bradley IS220PDIAH1B Flex I/O 8-Point AC Input Module

Product Overview

The Allen-Bradley 1794-IA8I is an input module for Flex I/O systems. It provides eight isolated 120V AC input points. Each point accepts discrete signals from switches and sensors. This module converts AC signals to logic levels for the controller. It is a reliable choice for factory automation.

This module uses removable terminal blocks. It supports easy wiring and fast replacement. The 1794-IA8I is compatible with many Flex I/O adapters. It works with ControlNet, DeviceNet, and EtherNet/IP networks. Its compact design saves space in the cabinet.

Engineers trust this module for its durability. It operates in harsh industrial environments. The module has a high noise immunity. This ensures accurate data transmission. The 1794-IA8I is a core part of many control systems.

Application Scenarios

This module is common in manufacturing plants. It monitors machine status and limits switches. It also reads push buttons and selector switches. The module works well in material handling systems. It is used in packaging and assembly lines.

Automotive factories use it for conveyor control. Food and beverage plants rely on it for safety interlocks. The module also fits into water treatment facilities. It provides reliable input for pump control. It is a versatile solution for many industries.

Technical Specifications

Input voltage is 120V AC. Input frequency is 47 to 63 Hz. The module has eight points. Each point has optical isolation. Off-state voltage is 20V AC or less. On-state voltage is 74V AC minimum. Input current is 11 mA per point at 120V AC.

Power dissipation is 4.8 Watts. The module operates from 0 to 60 degrees Celsius. Storage temperature is -40 to 85 degrees Celsius. Relative humidity is 5 to 95 percent non-condensing. The module meets UL, CSA, and CE standards.

Installation & Maintenance Guide

Mount the module onto the Flex I/O base. Use a 1794-TB3 or 1794-TBN terminal base. Wire the AC supply to the module. Connect field devices to the input terminals. Set the network address on the adapter. Power up the system and verify operation.

Regularly check for loose connections. Keep the module clean and dry. Replace the module only when the system is off. Use proper grounding techniques. Follow the user manual for detailed steps. This ensures long service life.

Packing List

The package includes one Allen-Bradley 1794-IA8I module. It also includes a user manual. The module is shipped in an anti-static bag. No terminal base is included. Order the base separately if needed.