Allen-Bradley 1762-OF4 MicroLogix Analog Output Module

Product Overview

The 1762-OF4 is a high-performance analog output module from the Allen-Bradley MicroLogix family. It features four single-ended channels configurable for voltage (0-10VDC) or current (4-20mA) outputs. The module uses an R-2R ladder digital-to-analog converter with 12-bit unipolar resolution, ensuring precise signal generation. It is designed to drive modulating actuators, variable frequency drives, dampers, and other industrial devices. The <a href="https://www.petroautotech.com/allen-bradley-1762-OF4-analog-output-module-4-channel/" title="Allen-Bradley 1762-OF4 Analog Output Module | 4-Channel" rel="noopener">1762-OF4 is compatible with MicroLogix 1100, 1200, and 1400 programmable logic controllers.

Application Scenarios

This output module is ideal for applications requiring analog signal control. Common uses include modulating valve positioners, VFD speed references, damper and louver positioning, and retransmitting signals to indicators or data loggers. It also supports Proportional-Integral-Derivative (PID) control loops when configured as the output of a PID controller. The module can be assigned as the output of a PID function in the MicroLogix platform to implement automatic control of temperature, flow, or pressure processes.

Technical Specifications

The 1762-OF4 offers four single-ended analog outputs with a full-scale range of 0-10.5VDC and 0-21mA. Output ranges include 0-20mA, 4-20mA, ±10VDC, 0-10VDC, 0-5VDC, and 1-5VDC. Resolution is 12 bits unipolar with repeatability of ±0.12%. Typical overall accuracy is ±1.17% full scale at -20°C to 65°C and ±0.5% at 25°C. The module operates on 24VDC input power and dissipates 2.8W heat. Output protection limits current to ±32mA. Dimensions are 90 x 87 x 40 mm (HxDxW) and weight is 235g. Recommended cable is Belden 8761 (shielded). The module supports data formats including raw/proportional and scaled-for-PID.

Installation & Maintenance Guide

Mount the module horizontally on a well-grounded metal panel or DIN rail. Ensure the mounting surface is grounded to avoid electrostatic discharge (ESD) damage. Use Belden 8761 shielded cable for analog wiring. Follow ESD prevention guidelines during handling. No additional grounding connections are needed if the surface is properly grounded. The module is compatible with MicroLogix 1100 (up to 4 modules), MicroLogix 1200 (up to 6 modules), and MicroLogix 1500 (up to 7 modules). Do not exceed the specified load ranges: current output resistive load 0-500Ω, voltage output load >1kΩ, reactive load <0.1mH (current) or <1µF (voltage).

Packing List

• 1 x Allen-Bradley 1762-OF4 Analog Output Module
• 1 x Installation Manual
• 1 x Product Identification Label

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