• Allen-Bradley 1756-OW16I
  • Allen-Bradley 1756-OW16I
  • Allen-Bradley 1756-OW16I
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Allen-Bradley 1756-OW16I ControlLogix 16-Point Isolated Relay Output Module

Allen-Bradley 1756-OW16I ControlLogix 16-Point Isolated Relay Output Module

Description

The Allen-Bradley 1756-OW16I is a high-performance 16-point isolated relay output module designed for the ControlLogix platform. This module provides 16 individually isolated, normally open (N.O.) relay outputs, making it suitable...

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SKU: 1756-OW16I
Vendor: Allen-Bradley
Category: Digital Output Module
Related Series:

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Description

The Allen-Bradley 1756-OW16I is a high-performance 16-point isolated relay output module designed for the ControlLogix platform. This module provides 16 individually isolated, normally open (N.O.) relay outputs, making it suitable for applications requiring the switching of various AC or DC loads where electrical isolation between channels is essential. It is engineered to integrate seamlessly into a ControlLogix chassis, facilitating reliable control in demanding industrial environments.

Features

  • 16 individually isolated relay output channels.
  • Supports a wide range of AC and DC load voltages up to 240V AC.
  • Designed for high-density control applications within the ControlLogix architecture.
  • Pilot duty rating of C300/R150 for versatile load handling.
  • Robust construction with a maximum power dissipation of 4.5 W at 60 degC.

Applications

This module is typically utilized in industrial automation systems for controlling actuators, contactors, solenoids, and other field devices. Its isolated output design makes it ideal for mixed-voltage environments where individual channel isolation is required to prevent cross-talk or ground loops between disparate control circuits.

Technical Specifications

Model 1756-OW16I
Outputs 16 N.O. Individually Isolated
Pilot Duty C300/R150
Current Draw @ 5.1V 150 mA
Total Backplane Power 4.4 W
Max Power Dissipation 4.5 W @ 60 degC (140 degF)
Thermal Dissipation 15.35 BTU/hr
Max Off-state Leakage 1.5 mA per point
Min Load Current 10 mA per point
Max Contact Resistance 100 mOhm @ 6V 1A
Mean Bounce Time 1.2 ms

Installation Guidelines

  • Ensure the ControlLogix chassis is powered down before inserting or removing the module to prevent electrical damage or unexpected system behavior.
  • The module must be seated firmly in the chassis slot and secured using the integrated locking mechanism.
  • Use appropriate shielded cabling for field wiring to minimize electromagnetic interference (EMI).
  • Maintain proper ventilation within the cabinet to ensure the module operates within its specified thermal dissipation limits.
  • Verify that all field wiring is correctly terminated and that load requirements do not exceed the specified pilot duty or current ratings.
  • Follow standard ESD (Electrostatic Discharge) precautions when handling the module to protect sensitive internal components.

FAQ

What is the primary function of the 1756-OW16I?

The 1756-OW16I is a digital relay output module used to provide isolated switching for field devices in a ControlLogix system, allowing the controller to manage high-voltage or varied-voltage loads.

Are the outputs on this module isolated?

Yes, the 16 outputs are individually isolated, which provides greater flexibility and safety when controlling multiple circuits with different voltage potentials.