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The WOODWARD 5501-367 is a significant MicroNet Simplex Low Voltage (LV) Discrete Field Termination Module (FTM). This means it acts as the critical interface between your field wiring (sensors, switches, solenoids, relays) and the main Woodward MicroNet control module.
WOODWARD 5501-367
This module is designed for simplex systems (not Triple Modular Redundancy or TMR) and handles discrete (on/off) signals for both input and output.
1. SEO-Optimized Titles:
- WOODWARD 5501-367: MicroNet Simplex LV Discrete Field Termination Module (FTM).
- WOODWARD 5501-367: Digital Input/Output FTM for Woodward Control Systems.
- WOODWARD 5501-367: Industrial Discrete Wiring Interface for MicroNet.
- WOODWARD 5501-367: Low Voltage Digital I/O Termination.
- WOODWARD 5501-367: Woodward Control System Field Wiring Block.
2. Product Overview:
The WOODWARD 5501-367 is a Field Termination Module (FTM) for the Woodward MicroNet Simplex LV Discrete Module. It’s not the primary processing module itself, but rather the essential component that connects the numerous field wires to the more sensitive internal electronics of the MicroNet system. It provides a robust, screw-terminal interface for discrete (on/off) signals, handling both inputs and outputs.
- Product Type: Field Termination Module (FTM) for Discrete I/O
- Manufacturer: Woodward
- Series: MicroNet Simplex LV Discrete
- Function: Provides robust connections for discrete (digital) input and output signals from field devices to the MicroNet control system.
- Channels: Typically has 16 inputs and 16 outputs, or sometimes 4 inputs and 4 outputs depending on the specific MicroNet discrete module it pairs with. Information found suggests both configurations exist.
3. Detailed Product Description:
In complex industrial control systems like Woodward’s MicroNet, the separation of the sensitive control electronics from the harsh environment of field wiring is crucial. The WOODWARD 5501-367 serves as this protective and organizational bridge.
As an FTM, it provides:
- Robust Screw Terminals: For direct and secure connection of field cables from sensors (like limit switches, pressure switches, flow switches) and actuators (like solenoids, relays, indicator lights). This eliminates the need for individual wire crimping into the main control module, simplifying installation and maintenance.
- Signal Conditioning and Protection: While the primary processing occurs on the associated MicroNet discrete I/O module (which connects to the FTM via a high-density cable), the FTM often includes passive components like fuses, current-limiting resistors, or transient voltage suppressors to offer basic protection against surges and noise from the field.
- Electrical Isolation: Crucial for preventing ground loops and protecting the control system’s sensitive internal components from electrical disturbances in the field wiring.
- Organized Wiring: The FTM centralizes and labels the connections, making it easier for technicians to install, troubleshoot, and maintain the field wiring.
The “Simplex LV Discrete” in its name indicates:
- Simplex: It’s designed for use in standard (non-redundant) control systems, rather than Triple Modular Redundancy (TMR) setups.
- LV (Low Voltage): It handles lower voltage discrete signals, typically up to 24 VDC.
- Discrete: It deals with binary (on/off) signals, as opposed to analog (continuously varying) signals.
The 5501-367 is often connected to a corresponding MicroNet discrete I/O module (e.g., a 5501-365 or similar) via a high-density cable. This pairing allows the central control system to receive status information from the field and send on/off commands to various equipment.
Reports suggest that it can accommodate a significant number of channels, with some sources mentioning 16 inputs and 16 outputs, while others describe 4 inputs and 4 outputs with up to 2A at 24VDC per output channel. The specific number of available channels will depend on the exact pairing with its MicroNet I/O module and the overall system configuration.
4. Technical Specifications (General, as precise details can vary slightly by manual version):
| Parameter | Value |
| Product Type | Field Termination Module (FTM) |
| Manufacturer | Woodward |
| Series | MicroNet Simplex LV Discrete |
| Part Number | 5501-367 |
| Channels | Varies; typically 16 Digital Inputs & 16 Digital Outputs (or 4 DI / 4 DO) |
| Input Voltage Range | 0 to 24 VDC (for discrete inputs) |
| Output Current Range | Up to 2 A at 24 VDC per output channel (for discrete outputs) |
| Isolation | Isolated inputs and outputs (to prevent ground loops and interference) |
| Mounting | DIN rail mounting for easy installation |
| Operating Temperature | Typically up to 55°C (131°F) |
| Power Consumption | 14 W (module only, without field load) |
| Input Voltage Rating | 18-32 VDC, 27.4 A (This likely refers to the power for the FTM itself or an associated module, not the signal voltage) |
| Warranty | Typically 12 months (from resellers) |
| Compatibility | Used with Woodward MicroNet control systems |
| Manuals/References | Woodward MicroNet Documentation (specific to the paired I/O module) |
5. Typical Applications:
The WOODWARD 5501-367 is crucial for establishing reliable discrete I/O in a wide range of industrial applications using Woodward MicroNet control systems:
- Gas Turbine Control Systems: For interfacing with various limit switches, permissive signals, and control solenoids (e.g., fuel shutoff, start-up sequencing).
- Engine Control: Connecting to engine safety switches, start/stop commands, and auxiliary system controls.
- Compressor Control: Monitoring valve positions, motor status, and controlling auxiliary functions.
- General Process Control: Providing field connections for status monitoring and on/off control of pumps, fans, lighting, and safety interlocks in various industrial plants.
