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- Woodward
- 5501-469
- Density Discrete Input Module
- USA
- 150 x 90 x 45 mm
- 0.75 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Woodward 5501-469 High-Density Discrete Input Module is a digital signal acquisition module designed for the Woodward MicroNet / MicroNet Plus control system platform. It is used to receive and process multiple discrete field signals from switches, sensors, and relay contacts, enabling real-time status monitoring in industrial automation systems.
This module is part of Woodward’s high-density I/O family and is commonly used in turbine control, compressor automation, and power generation systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Woodward |
| Model | 5501-469 |
| Product Type | High-Density Discrete Input Module |
| System Compatibility | Woodward MicroNet / MicroNet Plus |
| Function | Digital input signal acquisition |
| Input Channels | 48 discrete inputs |
| Input Voltage | 24 VDC |
| Signal Type | Dry contact / wet contact (system dependent) |
| Isolation | Channel-to-system electrical isolation |
| Status Indication | LED per channel (typical design) |
| Installation Type | Plug-in chassis module |
| Dimensions | 150 × 90 × 45 mm |
| Weight | 0.75 kg |
Function and Working Principle
The 5501-469 acts as a field signal interface between industrial equipment and the control processor.
Its primary functions include:
- Receiving ON/OFF signals from field devices (switches, sensors, relays)
- Converting discrete signals into digital data for CPU processing
- Providing real-time equipment status monitoring
- Supporting interlock and protection logic execution
- Ensuring electrical isolation for signal integrity
- Transmitting input status via system backplane to the controller
This enables accurate monitoring of machine conditions and process states in real time.
Role in Industrial Control Systems
Within the MicroNet architecture, the 5501-469 is responsible for:
- Monitoring equipment operational status
- Supporting sequencing and logic control functions
- Providing input signals for turbine and compressor control systems
- Enabling safety interlocks and shutdown logic
- Reducing wiring complexity through high-density I/O design
- Ensuring reliable signal acquisition in harsh environments
Industrial Applications
The Woodward 5501-469 is widely used in:
- Gas turbine control systems
- Steam turbine automation systems
- Compressor control systems
- Power generation plants
- Oil and gas processing facilities
- Petrochemical plants
- Pipeline compressor stations
- Industrial safety and interlock systems
Installation and System Integration
For proper installation:
- Install the module into a compatible MicroNet or MicroNet Plus chassis
- Ensure secure backplane connection
- Connect field discrete devices through terminal modules
- Verify 24 VDC input signal compatibility
- Configure input mapping in system engineering software
- Perform I/O testing during commissioning
Compatible System Components
The 5501-469 typically operates with:
- Woodward MicroNet CPU modules (e.g., 5466-419, 5466-352)
- Analog I/O modules (e.g., 5466-425D)
- Discrete output modules (e.g., 5466-258 series)
- Power modules (e.g., 5501-467)
- Communication modules (e.g., 5466-411 Ethernet module)
- Remote chassis transceivers (e.g., 5466-355)
Recommended Alternative Models
| Model | Product Type | Key Feature | Application |
|---|---|---|---|
| 5501-469 | Discrete Input Module | 48-channel high-density DI | MicroNet systems |
| 5466-258 | Discrete I/O Module | Input + output combination | Industrial automation |
| 5466-257 | Analog I/O Module | Analog signal processing | Process control |
| 5466-425D | Analog Input Module | High-density analog acquisition | Turbine monitoring |
Key Advantages
- High-density 48-channel digital input design
- Reliable real-time signal acquisition
- Electrical isolation for industrial protection
- Fast response for control and safety systems
- Compact module reduces cabinet space
- Seamless integration with MicroNet architecture
- Suitable for continuous-duty industrial environments
- Strong reliability in harsh operating conditions
Technical FAQs
What is the main function of the 5501-469?
It receives and processes digital ON/OFF signals from field devices and sends them to the control system.
How many inputs does it support?
It supports 48 discrete input channels.
Is it an input or output module?
It is a pure discrete input module (DI).
Where is it commonly used?
In turbine control systems, compressors, power plants, and industrial automation systems.
Conclusion
The Woodward 5501-469 Discrete Input Module is a high-density digital interface module designed for reliable signal acquisition in MicroNet control systems. With its 48-channel input capacity, robust industrial design, and real-time performance, it plays a critical role in monitoring and controlling complex industrial processes in power generation and process automation industries.