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1771-IM

Allen-Bradley 1771-IM Digital Input Module PLC 5 8 Input

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  • Manufacturer: Allen-Bradley

  • Product No.: 1771-IM

  • Product Type: Input Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The Allen-Bradley 1771-IM is a digital AC/DC input module for the PLC 5 series. Weighing approximately 500 g, it provides 8 inputs for receiving signals from selector switches, pushbuttons, AC limit switches, and float switches, operating on 220 V AC/DC voltage.

Key Features

8 digital inputs with 184-276 V AC/DC operating voltage range. Backplane current of 75 mA. Maximum off state current of 1.0 mA. AC signal delay of 20 ms typical, DC signal delay of 10 ms typical. Compatible with 1771-WA wiring arm. Rack mountable design for easy installation.

Technical Specifications

Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number 1771-IM
Module Type Digital AC/DC Input Module
Number of Inputs 8
Voltage Category 220 V AC/DC
AC Operating Voltage 184-276 V
DC Operating Voltage 184-276 V
Backplane Current 75 mA
Max AC Off-State Current 1.0 mA
Max DC Off-State Current 1.0 mA
Typical AC Signal Delay (On) 20 (±6) ms
Typical DC Signal Delay (On) 10 (±4) ms
Typical AC Signal Delay (Off) 20 (±6) ms
Typical DC Signal Delay (Off) 20 (±9) ms
Wiring Arm 1771-WA
Mounting Rack Mountable
Weight Approximately 500 g

Installation Guide

Mount the 1771-IM (approx. 500 g) in a PLC 5 rack. Connect field devices to the 8 inputs using the 1771-WA wiring arm. Verify input voltage stays within 184-276 V AC/DC for reliable on state operation. Ensure ambient temperature and humidity remain within specified limits. Keep off state current below 1.0 mA to prevent false triggering.

Engineering Advantages

Dual AC/DC operation simplifies inventory and installation. Lightweight 500 g design reduces rack strain. 8 inputs in a single module reduce rack space requirements. Fast signal response with 10 ms DC and 20 ms AC delays. Robust 220 V AC/DC voltage category handles industrial power directly. Compatible with standard 1771-WA wiring arms for straightforward field wiring.

Frequently Asked Questions

Q1: How many inputs does the 1771-IM provide?

A1: It provides 8 digital inputs for connecting field devices.

Q2: What is the operating voltage range?

A2: It accepts 184-276 V AC or DC for on state operation.

Q3: Which wiring arm is compatible with this module?

A3: The 1771-WA wiring arm is designed for use with the 1771-IM module.

Product Resources

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🏷️ Tags: Input Module
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