Allen-Bradley 1756-OB16I ControlLogix Isolated Output Module

Product Overview

The Allen-Bradley 1756-OB16I is a high-performance output module. It belongs to the ControlLogix family. This module provides 16 individually isolated outputs. It operates on a 12/24V DC source voltage. The voltage range is 10-30V DC. Each point can handle 2 Amps at 30 degrees Celsius. The module supports source wiring configurations. It uses a 1756-TBCH or 1756-TBS6H terminal block. This design ensures reliable signal transmission. It is ideal for demanding industrial environments.

Application Scenarios

This module controls various field devices. Use it for solenoids and motor starters. It also works with indicator lights. The isolated outputs protect sensitive circuits. This feature is critical in noisy environments. Industries like automotive and packaging use it. It is also common in material handling. The module integrates easily into ControlLogix racks. It supports both new and retrofit projects.

Technical Specifications

The 1756-OB16I has a maximum current of 2 Amps per point. The total module current is 8 Amps at 30 degrees Celsius. Output delay from OFF to ON is 1 ms max. Output delay from ON to OFF is 2 ms max. Power dissipation is 3.6 Watts at 60 degrees Celsius. Backplane current is 350 mA at 5.1V. It uses 3 mA at 24V. The module has a surge current rating of 4 Amps. This surge is repeatable every 2 seconds for 10 ms. Minimum load current is 1 mA per point. Maximum on-state voltage drop is 1.2V DC at 2 Amps. Off-state leakage current is 0.5 mA per point. Isolation voltage is 50 Volts continuous. Operating temperature is 0 to 60 degrees Celsius.

Installation & Maintenance Guide

Install the module into a ControlLogix chassis. Use a 1756-TBCH or 1756-TBS6H terminal block. Ensure power is off before wiring. Connect field devices to the output terminals. Follow the wiring diagram in the manual. The module is hot-swappable in most systems. Regular inspection of connections is recommended. Keep the module free from dust. Operating temperature should stay below 60 degrees Celsius. Use proper wire sizes for current loads. Always secure the terminal block firmly.

Packing List

One Allen-Bradley 1756-OB16I output module. One removable terminal block (1756-TBCH or 1756-TBS6H). One installation guide document. No other accessories are included. Shipping is via Fedex, UPS, or DHL.