Allen-Bradley 1756-IA16I ControlLogix AC Input Module

Product Overview

The Allen-Bradley 1756-IA16I is a high-performance digital input module. It belongs to the ControlLogix family. This module provides 16 individually isolated inputs. It operates on a nominal 120V AC power supply. The operating voltage range is 74 to 132V AC. This module is ideal for noisy industrial environments. It ensures reliable signal detection and system integrity. The electronic keying feature prevents incorrect module installation.

Application Scenarios

This module is perfect for discrete manufacturing. Use it for monitoring limit switches and push buttons. It also works well for detecting relay contacts. The isolated inputs protect your control system. Use it in applications with high electrical noise. It is suitable for both new installations and upgrades. The module integrates seamlessly with ControlLogix racks.

Technical Specifications

The module has 16 individually isolated input points. The nominal input voltage is 120V AC. The operating voltage ranges from 74 to 132V AC. The frequency range is 47 to 63 Hz. The input delay time is programmable. You can set it to 9 or 18 milliseconds. The minimum operating current is 5 milliamperes at 79V AC. The maximum operating current is 15 milliamperes at 132V AC. The off-state current is 2.5 milliamperes maximum. Power dissipation reaches 4.9 Watts at 60 degrees Celsius. It draws 125 milliamperes from the 5V backplane. It draws 2 milliamperes from the 24V backplane. The module uses a 36-pin connector. It requires a removable terminal block. Compatible blocks include the 1756-TBCH and 1756-TBS6H.

Installation & Maintenance Guide

First, ensure the chassis power is off. Insert the module into any slot in the ControlLogix chassis. Secure it with the top and bottom screws. Connect the field wiring to the terminal block. Use a compatible 1756 terminal block for connections. Configure the module using your control software. Set the input filter times as needed. Regularly check for loose connections. Keep the module free from dust and debris. Do not exceed the specified voltage ranges.

Packing List

Your package includes one 1756-IA16I module. It also includes a static-safe protective cover. The package does not include the terminal block. You must order the terminal block separately. The module ships in an anti-static bag. We use secure packaging for safe transit. We ship via Fedex, UPS, or DHL.