Allen-Bradley 1756-OF8I Isolated Analog Output Module ControlLogix

Product Overview

The Allen-Bradley 1756-OF8I is an isolated analog output module. It belongs to the ControlLogix family. This module provides eight outputs for current or voltage. It ensures high accuracy and signal integrity. The module uses a 16-bit resolution for precise control. It supports IEEE 32-bit floating point data format. This design minimizes signal noise and drift. The module is ideal for demanding industrial environments.

Application Scenarios

This module works well in process control systems. It is perfect for regulating valves and actuators. Use it for speed drives and flow control loops. It suits both current and voltage output needs. The isolated channels protect sensitive equipment. It is common in oil and gas, water treatment, and manufacturing plants. Engineers rely on it for consistent analog output signals.

Technical Specifications

The 1756-OF8I has eight isolated outputs. It supports current ranges of 0-20 mA and 4-20 mA. Voltage ranges include 0-5V, 0-10V, and -10 to +10V. The resolution is 15 bits, with 16-bit monotonicity. It uses an R-Ladder DAC conversion method. The power dissipation is 6.5 Watts. It draws 400 milliamps at 24 Volts DC. Isolation voltage is 50 Volts continuous. It includes open circuit detection for current outputs. Short circuit detection works for voltage outputs. Overvoltage protection is ±30V DC.

Installation & Maintenance Guide

Install the module into a ControlLogix chassis. Use a compatible removable terminal block. Options include 1756-TBNH, 1756-TBSH, 1756-TBCH, and 1756-TBS6H. Ensure the chassis power is off during installation. Secure the module with the locking mechanism. Connect wiring according to the manual. Check for proper grounding to avoid noise. Regularly inspect connections for tightness. Clean the module with a dry cloth only. Do not expose to excessive moisture or heat.

Packing List

One Allen-Bradley 1756-OF8I analog output module. One installation guide. No terminal block is included. Order the terminal block separately. Shipping is done via FedEx, UPS, or DHL. Ensure safe packaging for transit. Verify the module upon arrival.