The Allen-Bradley 1746-OW16 Series C is a 16-point relay output module designed for the SLC 500 programmable logic controller (PLC) system. This module provides reliable switching capabilities for both AC and DC loads, making it suitable for a wide range of industrial automation applications.
Key Features
- Output Configuration: 16 relay contact outputs, organized into two groups with eight points per common.
- Operating Voltage Range: Supports 5 to 265V AC and 5 to 125V DC, offering flexibility for various load requirements.
- Current Ratings:
- Continuous current per point: Up to 1.5A at 120V AC and 1.2A at 24V DC.
- Continuous current per module: 16A, with a maximum of 8A per common.
- Signal Delay: Maximum of 10 milliseconds for both ON and OFF states at resistive load.
- Backplane Current Consumption: 170 mA at 5V DC and 180 mA at 24V DC.
- Isolation Voltage: 1500V AC between the backplane and output, ensuring robust electrical isolation.
- Heat Dissipation: Maximum of 5.7W, contributing to efficient thermal management within the control system.
Applications
The 1746-OW16 module is ideal for controlling various industrial devices such as solenoids, motors, and actuators. Its ability to handle both AC and DC loads makes it versatile for applications requiring flexible hard-contact switching. The module’s design allows for easy integration into existing SLC 500 systems, facilitating expansion or maintenance of legacy control systems.
Installation and Maintenance
The module features a removable terminal block, simplifying wiring and maintenance tasks. To ensure longevity and optimal performance, it is recommended to avoid exposure to chemicals that may degrade the sealing materials. Regular inspections for chemical damage are advised. Additionally, the use of external surge suppression devices is recommended to protect the module and extend its lifespan.
Technical Specifications
| Attribute | Specification |
|---|---|
| Number of Outputs | 16 (2 groups of 8 per common) |
| Output Type | Relay Contact (Normally Open) |
| Operating Voltage Range | 5–265V AC / 5–125V DC |
| Continuous Current per Point | 1.5A @ 120V AC, 1.2A @ 24V DC |
| Continuous Current per Module | 16A (8A per common) |
| Signal Delay (Resistive Load) | ON: 10 ms, OFF: 10 ms |
| Backplane Current Draw | 170 mA @ 5V DC, 180 mA @ 24V DC |
| Isolation Voltage | 1500V AC (backplane to output) |
| Heat Dissipation | 5.7W maximum |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5% to 95% (non-condensing) |
The Allen-Bradley 1746-OW16 Series C relay output module offers a robust and flexible solution for industrial control applications, ensuring reliable performance and ease of integration within the SLC 500 PLC system.
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