Allen-Bradley 1756-OB16IEF ControlLogix Fast Isolated Output Module

Product Overview

The Allen-Bradley 1756-OB16IEF is a ControlLogix DC output module. It offers 16 individually isolated outputs. This module supports fast peer-to-peer control. It also features Pulse Width Modulation (PWM). The operating voltage range is 10-30 Volts DC. It responds to system commands in under 25 µs. This makes it ideal for high-speed applications. The module includes electronic fusing per point. It also has fault reporting and configurable fault modes. The 1756-OB16IEF uses CIP Sync for timestamps. It requires a master clock module on the network. This module is a CIP Sync slave-only device.

Application Scenarios

This module suits high-speed control systems. It works well in manufacturing lines. It is perfect for applications needing fast output response. The 1756-OB16IEF is great for peer-to-peer communication. It is used in packaging and material handling. It also fits in assembly automation. The PWM feature supports precise timing control. This module is ideal for processes needing isolated outputs. It ensures reliable operation in noisy environments.

Technical Specifications

The module has a DC circuit type. Its input voltage range is 10-30 Volts DC. Maximum output current per point is 2 Amps at 30°C. At 60°C, it is 1 Amp per point. Maximum module current is 8 Amps at 30°C. At 60°C, it is 4 Amps. Power dissipation is 3.6 Watts at 60°C. Backplane current is 350 mA at 5 Volts. It also draws 3 mA at 24 Volts. Isolation voltage is 50 Volts continuous. The module uses 1756-TBCH or 1756-TBS6H terminal blocks. It has a PWM cycle time of 1 ms to 1 hour. PWM on-time accuracy is +/-20 µs. Minimum load current is 1 mA per point. Surge current is 4 A for 10 ms. Off-state leakage is less than 0.1 mA per point. On-state voltage drop is 0.2V DC at 1 A.

Installation & Maintenance Guide

Install the module into a ControlLogix chassis. Use a compatible removable terminal block. The 1756-TBCH or 1756-TBS6H are required. Ensure the backplane power is off before installation. Secure the module with the locking mechanism. Connect field wiring to the terminal block. Configure the module using RSLogix 5000 or Studio 5000. Set fault modes as needed. The module supports diagnostics and status indicators. Regularly check the LED indicators for faults. Keep the module free from dust and moisture.

Packing List

The package includes one Allen-Bradley 1756-OB16IEF module. It does not include a terminal block. Order the 1756-TBCH or 1756-TBS6H separately. The module comes in an anti-static bag. A quick reference guide is included. Shipping is via FedEx, UPS, or DHL.