1756-IV16 Allen-Bradley ControlLogix Digital DC Input Module

Product Overview

The Allen-Bradley 1756-IV16 is a reliable digital DC input module. It belongs to the ControlLogix series. This module provides 16 input points. It works with 12-24 Volts DC. The nominal voltage is 24 Volts DC. It draws only 0.61 Watts from the backplane. This makes it energy efficient. The module uses 110 milliamps at 5 Volts. It uses 2 milliamps at 24 Volts. The maximum power dissipation is 5.1 Watts. This occurs at 60 degrees Celsius. The thermal dissipation is 18.47 BTU/hour. This module is built for industrial use. It offers high reliability. It is easy to install. It fits standard ControlLogix chassis.

Application Scenarios

This module reads digital sensor signals. It works with proximity switches. It connects to push buttons. It also reads limit switches. Use it in manufacturing lines. Use it in packaging machines. Use it in material handling. It works in process control. It works in automotive plants. It works in food and beverage. It is ideal for discrete automation. It handles 16 inputs in one slot. This saves space. It reduces wiring costs. It speeds up installation. The module supports fast input events. It filters noise well. It is suitable for high-speed applications. It works in harsh environments. It has a wide voltage range.

Technical Specifications

The 1756-IV16 has 16 inputs. The input voltage range is 10-30 Volts DC. The nominal voltage is 24 Volts DC. The off-state maximum voltage is 5 Volts DC. The off-state maximum current is 1.5 mA. The on-state current range is 2 mA at 10 Volts DC to 10 mA at 30 Volts DC. The maximum inrush current is 250 mA. The maximum input impedance is 3.2 kΩ at 30 Volts DC. The input delay time from off to on is a hardware delay of 280 microseconds nominal. The maximum is 1 millisecond. You can add a user-selectable filter time. The filter options are 0 ms, 1 ms, or 2 ms. The input delay time from on to off is a hardware delay of 540 microseconds nominal. The maximum is 2 milliseconds. The filter options are 1 ms, 2 ms, 9 ms, or 18 ms. The continuous isolation voltage is 250 Volts. The total backplane power is 0.61 Watts.

Installation & Maintenance Guide

Install the module in any ControlLogix chassis. Turn off power before installation. Align the module with the backplane. Push it in until it locks. Secure it with the screw. Connect field wiring to the terminal block. Use a shielded cable for long runs. Check the voltage polarity. The module is keyed for correct insertion. For maintenance, keep the module clean. Check the LED indicators. The green LED shows module status. The input LEDs show each point state. Do not open the module case. There are no user-serviceable parts. Replace the module if it fails. Always use proper ESD protection. Follow the manufacturer's guidelines.

Packing List

1 x 1756-IV16 Digital DC Input Module
1 x Removable Terminal Block (RTB)
1 x Product Documentation Leaflet