Evaluating the 1746-IA16 for Your PLC System
When selecting input modules for a programmable logic controller, engineers need reliable components that integrate seamlessly with existing architectures. The Allen-Bradley 1746-IA16 is a digital AC input module designed for the SLC 500 platform, offering sixteen input channels with a voltage range of 85-132 Volts AC. This buyer's guide helps you assess whether this module meets your application requirements.
Key Technical Specifications of the 1746-IA16
The 1746-IA16 operates with a backplane current of 85 milliamps at 5 Volts DC and occupies a single slot in the SLC 500 chassis. It features a signal delay of 35 milliseconds for ON and 45 milliseconds for OFF, with an off-state current of 2 milliamps. The module accepts input voltages from 85 to 132 Volts AC and has a maximum off-state voltage of 50V AC. These specifications make it suitable for general-purpose AC input applications in industrial environments.
Application Scenarios for the 1746-IA16
This module is ideal for monitoring discrete AC signals from devices such as limit switches, push buttons, and proximity sensors in manufacturing lines. In a typical packaging facility, the 1746-IA16 can detect the presence of products on a conveyor and trigger downstream actions. Its 16 channels allow for efficient grouping of inputs, reducing the number of modules needed in a control cabinet.
Compatibility and Integration with SLC 500 Systems
The 1746-IA16 is compatible with both fixed and modular SLC 500 controllers, and can be installed in local or expansion racks. It uses I/O connections 1746-HT and 1746-HCA for wiring. There is no limit to the number of modules that can be installed as long as the chassis has available slots. This flexibility allows for scalable system design without requiring additional hardware changes.
Customer Case Scenario: Upgrading a Legacy Line
Consider a food processing plant upgrading its control system from older discrete modules to the SLC 500 platform. By integrating the 1746-IA16, the plant gains 16 reliable AC input channels that handle 85-132V AC signals from existing sensors. The module's removable terminal block simplifies installation and future maintenance, reducing downtime during the transition.
Frequently Asked Questions About the 1746-IA16
What is the voltage range for the 1746-IA16?
The 1746-IA16 accepts an input voltage range of 85-132 Volts AC, as specified in the product data. This range covers standard 100-120V AC industrial power supplies.
How many input channels does the 1746-IA16 have?
The module provides sixteen (16) input channels, each capable of detecting AC signals within the specified voltage range. All channels share a common terminal arrangement.
What is the backplane current consumption of the 1746-IA16?
The module draws 85 milliamps from the 5 Volts DC backplane supply. This low consumption allows for efficient power budgeting in multi-module SLC 500 chassis.
Can the 1746-IA16 be used in a modular SLC 500 system?
Yes, the 1746-IA16 can be installed in both fixed and modular SLC 500 controllers, as well as in expansion racks. It occupies a single slot and requires no special configuration.
Why Choose Petro Auto Tech for Your 1746-IA16
Petro Auto Tech specializes in industrial automation parts, offering genuine Allen-Bradley modules like the 1746-IA16. With a focus on quality and availability, we help you source the components needed for your control system upgrades. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.
