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Product Introduction
The Allen-Bradley 1771-OAD AC Output Module is a digital AC output module designed for the PLC-5 1771 I/O platform by Allen-Bradley. It is used to switch AC loads in industrial automation systems under the control of a PLC, providing reliable and precise AC output control for a variety of field devices.
This module offers 16 AC output points, supporting operating voltages from 10 to 138 VAC and a recommended voltage range of 12–120 VAC. It can handle a maximum continuous current of 2 A per output and 8 A for the entire module. With a typical DC signal delay of 50 ms, the 1771-OAD ensures timely switching of AC loads in process control and automation systems.
Installed in a 1771 I/O chassis, the module communicates with the PLC-5 processor via the backplane. Its compact design, high output capacity, and reliability make it ideal for controlling motors, solenoids, lights, heaters, and other AC-powered devices in industrial environments.
Product Specifications
| Parameter | Description |
|---|---|
| Product Name | Allen-Bradley 1771-OAD AC Output Module |
| Manufacturer | Allen-Bradley |
| Series | 1771 PLC-5 I/O System |
| Module Type | Digital AC output module |
| Number of Outputs | 16 outputs |
| Operating Voltage | 10–138 VAC |
| Recommended Voltage Category | 12–120 VAC |
| Frequency Range | 47–63 Hz |
| Max Continuous Current per Output | 2 A |
| Max Current per Module | 8 A |
| Typical DC Signal Delay (Off) | 50 ms |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 0.6 kg |
Applications
● Industrial AC Load Control
Switches motors, solenoids, heaters, and lighting circuits under PLC control.
● PLC-5 Automation Systems
Provides reliable AC output control for automated process and machine operations.
● Manufacturing Equipment
Controls AC-powered actuators, pumps, and conveyor systems in production lines.
● Energy and Utility Systems
Operates AC devices for energy distribution, control panels, and power management.
● Building and Facility Automation
Manages lighting, HVAC, and other AC-powered equipment in industrial facilities.
Advantages
● Multiple Output Points
Supports 16 AC outputs for controlling multiple devices simultaneously.
● Wide Operating Voltage Range
Operates from 10–138 VAC, suitable for various industrial AC applications.
● High Current Capacity
Handles up to 2 A per output and 8 A per module for robust operation.
● Fast Response
Typical DC signal delay of 50 ms allows timely control of AC devices.
● Reliable PLC Integration
Communicates seamlessly with PLC-5 processors through the 1771 backplane.
● Compact and Modular Design
Fits standard 1771 I/O chassis slots for flexible system expansion.
