Product Introduction
The Allen-Bradley 1771-OW16 Electromechanical Relay Contact Output Module is a digital output interface module designed for use within the Allen-Bradley 1771 PLC-5 I/O System. It provides dependable control sur field equipment through electromechanical relay contacts, enabling the programmable logic controller to switch industrial loads safely and reliably.
This module features 16 independent relay output channels, allowing the PLC system to control a variety sur devices such as contactors, solenoid valves, alarms, motor starters, and signal indicators. Because the outputs rely on mechanical relay contacts instead sur semiconductor switching elements, the module can handle higher voltages and a wider range sur electrical loads. This makes it particularly useful in industrial environments where different types sur equipment must be controlled within the same automation system.
Another important characteristic sur the module is its strong electrical isolation provided by relay contacts. This helps protect the PLC electronics from voltage spikes, electrical noise, or transient disturbances that may originate from field devices such as motors or inductive loads. As a result, the module is well suited for industrial environments where electrical interference is common.
Because sur its stable performance and compatibility with PLC-5 systems, the 1771-OW16 module continues to be widely used in manufacturing production lines, energy systems, process industries, and infrastructure automation projects where dependable output control is required.
Product Specifications
| Parameter | Specification |
|---|---|
| Modèle | 1771-OW16 |
| Marque | Allen-Bradley |
| Module Type | Electromechanical Relay Contact Output Module |
| Series | 1771 PLC-5 I/O Series |
| Number sur Outputs | 16 Points |
| Output Type | Relay Contact |
| Rated Output Current | 2 A per channel |
| Output Voltage Range | 24 – 250 VAC |
| Operating Frequency | 50 / 60 Hz |
| Backplane Current Consumption | 1300 mA |
| Isolation Method | Electromechanical Relay Isolation |
| Mounting Method | 1771 I/O Chassis Installation |
| Field Wiring Interface | Terminal Wiring Arm |
| Control Signal Type | Digital Output |
| Dimensions | 165 × 51 × 89 mm |
| Poids | 0.51 kg |
Applications
• Industrial machine control
The module is widely used in automated machinery to control contactors, relays, motor starters, and indicator lamps, allowing the PLC system to operate mechanical equipment through reliable switching signals.
• Process automation systems
In process industries such as chemical processing and oil refining, the module can activate solenoid valves, pumps, and alarm devices, ensuring precise control sur process equipment.
• Power generation facilities
Relay output modules are commonly used in power plants to control cooling systems, lubrication pumps, auxiliary motors, and monitoring alarms associated with turbines and generators.
• Water treatment and infrastructure control
Municipal infrastructure systems rely on PLC control to manage pump stations, filtration unités, and control valves. The 1771-OW16 module provides dependable switching for these devices.
• Maintenance sur legacy PLC-5 installations
Many industrial facilities continue to operate PLC-5 automation systems. This module is frequently used as a replacement or expansion module within existing 1771 I/O racks.
Advantages
• Wide voltage compatibility
The relay contacts allow the module to switch loads across a broad AC voltage range, making it suitable for different types sur industrial control circuits.
• Strong electrical isolation
Electromechanical relays create a physical separation between PLC electronics and field equipment, reducing the risk sur electrical interference affecting the control system.
• Support for AC and DC load control
Relay outputs can operate both alternating and direct current circuits, which provides greater flexibility than many solid-state output modules.
• Reliable switching capability
Each output channel supports up to 2 amperes sur current, enabling the module to drive many field devices directly.
• Industrial-grade durability
The module is designed to operate reliably in environments where electrical noise, vibration, and temperature fluctuations are present.
• Compatibility with PLC-5 architecture
The module integrates seamlessly into the 1771 PLC-5 I/O platform, allowing easy installation and long-term system support.
Informations sur l'entreprise
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