Allen-Bradley 1762-OW16 MicroLogix Relay Output Module

Product Introduction

The 1762-OW16 module from Allen-Bradley is a high-quality expansion module designed specifically for the MicroLogix family of programmable logic controllers. This module significantly increases the output capacity of your control system. It is compatible with the MicroLogix 1100, 1200, and 1400 controllers. The primary function of the 1762-OW16 is to provide a convenient interface for energizing and de-energizing various electrical loads through its relay outputs. Its robust design and broad operating voltage range ensure dependable performance in a wide array of industrial applications, from simple on/off control to more complex machinery sequencing.

Technical Specifications

This module features sixteen independent normally open relay output channels, organized into two isolated groups. Group 0 comprises Outputs 0 through 7, while Group 1 consists of Outputs 8 through 15. The 1762-OW16 has a remarkable operating voltage range that spans from 5 to 265V AC and 5 to 125V DC. This flexibility allows it to handle both AC and DC loads with ease. Each individual output point supports a maximum continuous current of 2.5 Amps. Additionally, the module features a continuous current rating of 8A per common and up to 16A for the entire module. A notable characteristic is its consistent signal delay time of just 10 ms for both ON-to-OFF and OFF-to-ON transitions.

Furthermore, the relay contact ratings are specified for various voltage levels. For 120/240V AC, the maximum continuous current is 2.5A. For 125V DC, it is 2A, and for 24V DC, it is 1A. The maximum controlled load for the 1762-OW16 is rated at 1440 VA. Its maximum heat dissipation is measured at 6.1 Watts. The module also draws a maximum bus current of 140 mA at 5V DC and 180 mA at 24V DC. The minimum on-state current required for operation is 10 mA.

Mechanical and Environmental Parameters

The Allen-Bradley 1762-OW16 is built for durability. Its physical dimensions are 90 x 40.4 x 87 mm (3.54 x 1.59 x 3.43 in.). When including the mounting tabs, the height extends to 110 mm (4.33 in.). The module’s enclosure is rated IP20, providing protection against solid objects larger than 12mm. Installation is straightforward, as it supports both DIN rail mounting and direct panel mounting, depending on the base controller used. This product is designed to operate reliably in demanding industrial settings, ensuring a long operational lifespan.

Installation and Wiring Guidance

Installation of the 1762-OW16 depends on the specific controller in use. When used with a MicroLogix 1100 controller, up to four instances of this module can be installed. For a MicroLogix 1200, it supports up to six modules. Moreover, the MicroLogix 1500 permits the installation of up to seven modules. For optimal performance and longevity, it is highly recommended to install surge suppressors across external inductive loads. These devices provide critical protection against high-inrush currents, which significantly extends the life of the relay contacts. Additionally, always follow proper electrostatic discharge precautions during handling, as the module contains sensitive semiconductor components.

Packaging List

• Allen-Bradley 1762-OW16 Relay Output Module (1 unit)

• DIN rail mounting clips (pre-installed)

• Removable terminal block connector

• Product identification label

Frequently Asked Questions (FAQ)

1. Which controllers are compatible with the 1762-OW16?
This module is fully compatible with MicroLogix 1100, 1200, and 1400 controllers. The maximum number of modules you can install varies by controller: up to 4 for the 1100, 6 for the 1200, and 7 for the 1500.

2. What is the maximum current I can draw per output point?
Each output point on the 1762-OW16 supports a continuous current of up to 2.5A. However, the total current per common group is limited to 8A, and the module total is 16A.

3. Do I need external surge protection for this module?
Yes, Allen-Bradley strongly recommends using surge suppressors across inductive loads. This practice protects the relay contacts from high inrush currents and significantly improves the operational lifespan of the 1762-OW16.

4. What is the signal delay time for the relay outputs?
The 1762-OW16 has a fixed signal delay of 10 ms for both turning on and turning off. This consistent timing ensures predictable performance in time-sensitive applications.

5. How should I mount this module?
The 1762-OW16 supports both DIN rail mounting and direct panel mounting. The choice depends on your specific installation environment and the base controller you are using.