Allen Bradley 1794-OW8 Flex 8 Point Isolated Relay Output Module

Product Introduction

The Allen-Bradley 1794-OW8 Flex 8 Point Isolated Relay Output Module is a high-performance relay output module designed for the FLEX I/O series. Manufactured by Rockwell Automation under the Allen-Bradley label, this module provides eight isolated digital relay outputs for controlling a wide range of field devices.

The 1794-OW8 module supports 24 VDC power supply and features a response time of 10 ms, making it suitable for industrial applications that require precise and reliable switching. Each channel can handle up to 2 A, allowing control of motors, solenoids, lamps, and other actuators. Its isolated relay design ensures electrical separation between channels and the backplane, protecting both the controller and field devices from electrical faults.

This module is compact and rugged, suitable for use in harsh industrial environments. It integrates seamlessly with FLEX I/O controllers and other Allen-Bradley automation systems, providing scalable and flexible control solutions for manufacturing, process automation, and building management applications.

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Product Specifications

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Applications

• Industrial Machine Automation
Controls motors, solenoids, lamps, and other actuators in packaging, assembly, and production machinery.

• Process Control Systems
Provides isolated outputs to control valves, pumps, and actuators in chemical, water, and food processing plants.

• Material Handling Systems
Drives conveyors, sorters, and automated storage systems requiring reliable switching and electrical isolation.

• Building Automation
Operates fans, pumps, lighting, and alarm devices in building management systems.

• Remote Actuation
Relay outputs allow switching of devices at a distance while maintaining electrical isolation from the control system.

• Integration with FLEX I/O
Seamlessly integrates with FLEX I/O controllers and other Allen-Bradley automation hardware for scalable solutions.

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Advantages

• Isolated Relay Outputs
Each channel is electrically isolated from the backplane, protecting the controller and field devices from faults.

• High Current Capacity
Supports up to 2 A per channel, allowing control of a wide variety of industrial actuators.

• Fast Response
10 ms response time ensures timely operation for automated processes and system events.

• Flexible Integration
Designed for use with FLEX I/O controllers and Allen-Bradley automation systems for modular, scalable configurations.

• Reliable Industrial Performance
Rugged construction ensures operation under harsh industrial environments with consistent performance.

• Reduced Wiring Complexity
Eight outputs in a single module simplify control panel design and installation.

• Versatile Application Support
Suitable for machine automation, process control, material handling, and building management systems.

• Efficient Power Usage
Draws only 125 mA from the backplane while delivering full output capability.

• Scalable System Design
Multiple modules can be combined to expand output capacity without redesigning the control architecture.

• Enhanced Safety
Electrical isolation reduces the risk of damage to both the PLC and field devices in case of faults.

FAQ

1. How many digital outputs does the 1794-OW8 provide?
   It provides 8 isolated relay outputs, allowing independent control of motors, solenoids, lamps, or other field devices in industrial applications.

2. What is the maximum output current per channel?
   Each channel supports up to 2 A, suitable for most actuators like small motors, signal lamps, and solenoid valves.

3. What is the response time of the module?
   The module responds in approximately 10 ms, enabling precise timing for automation tasks such as conveyor sequencing and machine control.

4. What power supply voltage does it require?
   It operates on a standard 24 VDC supply, compatible with most PLC backplanes and industrial devices.

5. Does the module provide electrical isolation?
   Yes, each output is electrically isolated from the backplane, protecting the controller and other modules from faults or voltage spikes.

6. Which types of devices can be controlled by this module?
   It can drive motors, solenoids, lamps, relays, and similar actuators, making it suitable for industrial and building automation systems.

7. Can it be integrated with other FLEX I/O modules?
   Yes, it works seamlessly with other FLEX I/O modules and controllers, allowing modular expansion of the control system.

8. What is the operating temperature range?
   It operates reliably between 0°C and 60°C, suitable for most indoor industrial environments.

9. How much current does the module draw from the backplane?
   The module draws 125 mA, keeping backplane power consumption low while enabling full output operation.

10. Is the 1794-OW8 suitable for industrial automation applications?
    Yes, it is designed for manufacturing, process control, material handling, and building automation, offering reliable switching and isolation for critical devices.

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