Description

The Allen-Bradley 1756-OB16E delivers high-reliability discrete control for 24V DC industrial loads. This module features sixteen sourcing outputs to drive solenoids, relay coils, and indicator lights. It utilizes two distinct groups of eight channels to manage field power effectively. Furthermore, the unit operates across a broad voltage range from 10V to 31.2V DC. The hardware ensures rapid response times for time-critical automation tasks. Specifically, the module achieves a nominal signal delay of only 70 microseconds during state transitions.

Integrated Circuit Protection and Safety

Every output group on the 1756-OB16E includes dedicated electronic fusing for superior hardware protection. This feature prevents damage from overcurrent conditions or accidental short circuits in the field. Consequently, the module reduces maintenance costs by shielding the ControlLogix backplane from electrical faults. The unit also supports high surge currents for inductive load startup. Each point can handle a 2A surge for 10 milliseconds during activation. This robust design maintains system stability in demanding industrial environments.

System Compatibility and Installation

This discrete module integrates seamlessly into any standard 1756 ControlLogix chassis. It functions efficiently as either local I/O or distributed I/O across a network. For field wiring, the module requires a Removable Terminal Block like the 1756-TBNH. This modular approach allows for fast hardware replacement without disturbing field cables. Additionally, the 1756-OB16E supports Removal and Insertion Under Power (RIUP) capabilities. Users can swap modules while the rest of the system remains operational.

Technical Specifications