Description
Product Overview
The Woodward 5501-376 is a field termination module used in compatible Woodward MicroNet high-density analog I/O systems. Its purpose is to provide the field wiring interface between external instruments and the associated control-system I/O hardware. This makes it an important part of the installation even though it does not perform the analog signal conversion or application processing itself. Correct identification matters during maintenance: the 5501-376 is the termination assembly, while the associated 5466-series module performs the I/O functions.
Woodward’s Industrial Turbine Products Catalog identifies the 5501-376 for Simplex configurations using the 5466-1105 and 5466-1115 high-density combo I/O modules. Those configurations combine four speed inputs, twelve selectable current or voltage inputs, and four 4–20 mA outputs. The catalog also identifies the 5501-376 as an FTM option for the 5466-5025 and 5466-5026 high-density analog I/O configurations. These system references are more useful for replacement decisions than the terminal module’s part number alone: the selected FTM must match the host I/O module, cable arrangement, and installed Simplex architecture.
The 5501-376 should not be confused with the 5501-372, which Woodward lists for TMR high-density analog I/O applications. A Simplex and a Triple Modular Redundant termination arrangement have different system roles, so matching the general description “analog FTM” is insufficient. Before installation, compare the terminal assignment, cable connectors, wiring drawings, and associated I/O module number. This is particularly important in older turbine-control cabinets where an incorrect termination assembly can misroute multiple field signals even when the connectors appear physically similar.
Product Introduction
Incorrect field termination can create signal faults that are difficult to distinguish from failures in the main I/O hardware. The Woodward 5501-376 provides the field wiring termination interface for designated Simplex high-density analog I/O configurations, supporting organized connections between field devices and the control-system electronics.
For replacement work, verify the associated 5466-series I/O module, cable connectors, terminal assignments, and Simplex configuration. Do not substitute a TMR termination module based only on physical similarity.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product model | 5501-376 |
| Manufacturer | Woodward |
| Product family | MicroNet |
| Product type | High-Density Analog I/O Field Termination Module |
| Configuration | Simplex |
| Primary function | Field signal termination and wiring interface |
| Compatible I/O reference | 5466-1105 |
| Compatible I/O reference | 5466-1115 |
| Additional I/O references | 5466-5025 / 5466-5026 |
| Associated signal types | Speed sensor, analog input, analog output |
| Cable arrangement | Depends on the associated I/O configuration |
| TMR alternative reference | 5501-372 |
| Standalone processing capability | Not an I/O processing module |
Specification caution: Woodward’s catalog confirms the 5501-376’s FTM role and its use with the listed Simplex I/O configurations. It does not establish a standalone analog input range, output accuracy, sampling rate, or isolation rating for the termination assembly itself. Those specifications belong to the associated I/O electronics and must not be incorrectly attributed to the FTM.
5501-376
Related Products
The following components are relevant to the 5501-376’s MicroNet high-density I/O environment. Their functions differ, so confirm the complete assembly configuration before substitution.
- 5466-1105 – High-density combo I/O module with four speed inputs, twelve selectable 4–20 mA or 0–5 V inputs, and four 4–20 mA outputs. Woodward specifies the 5501-376 for its Simplex termination arrangement.
- 5466-1115 – High-density combo I/O module with four speed inputs, twelve selectable analog inputs, and four 4–20 mA outputs.
- 5466-5025 – High-density analog I/O module with 24 selectable analog inputs and eight 4–20 mA outputs.
- 5466-5026 – Simplex high-density analog I/O module with 24 4–20 mA inputs and eight outputs.
- 5501-372 – High-density analog I/O termination module for TMR configurations; not automatically interchangeable with the Simplex 5501-376.
- 5437-523 – Standard analog field termination module referenced in Woodward Simplex combo I/O configurations.
- 5441-695 – Dataforth-related field termination option for specified high-density analog I/O configurations.
Frequently Asked Questions
Q1: What is the Woodward 5501-376 used for?
The 5501-376 is a Simplex High-Density Analog I/O Field Termination Module. It provides the field-side wiring interface for compatible Woodward MicroNet I/O configurations. It is not the processor or signal-conversion card, so it must be evaluated together with the associated I/O module and cables.
Q2: Can I hot-swap the 5501-376 while the control system is running?
Do not assume live replacement is permitted. The available product catalog does not establish a hot-swap procedure for this FTM. Identify the connected field circuits and follow the applicable Woodward installation and plant isolation procedures before disconnecting it.
Q3: Does the 5501-376 support firmware v3.1?
The 5501-376 is a field termination assembly, not an independent firmware-controlled processor. Software compatibility is determined by the associated MicroNet I/O module, controller, and application configuration. Check the complete system documentation when evaluating a replacement.
Q4: Is the 5501-376 compatible with the 5466-1105 and 5466-1115?
Yes. Woodward’s Industrial Turbine Products Catalog identifies the 5501-376 as the Simplex FTM for both 5466-1105 and 5466-1115 configurations. Confirm the required cable arrangement and exact system configuration before installation.
Q5: Can I replace the 5501-376 with the 5501-372?
Do not treat them as direct substitutes. Woodward identifies the 5501-376 for Simplex configurations and the 5501-372 for TMR configurations. Their application architectures differ. Verify the system design and approved termination arrangement before selecting either part.
Q6: Will replacing the 5501-376 erase the controller’s application logic?
The 5501-376 is a field termination assembly and is not the primary storage location for controller application logic. Replacing the assembly does not inherently erase the controller program. However, incorrect terminal reconnection can cause signal mapping errors. Record the original wiring and verify each field connection against the approved drawings after installation.
Q7: What should I check when purchasing a new-surplus or refurbished 5501-376?
Inspect the terminal blocks, connectors, mounting points, and PCB for corrosion, heat damage, loose contacts, and previous repairs. Confirm that the complete model number and revision match the existing assembly. Request continuity checks and appropriate interface testing. Also verify whether the required cables and terminal accessories are included; do not assume they are supplied with the FTM.
Engineering procurement note: The most important compatibility check for the 5501-376 is the associated I/O module and system architecture. Confirm that the installation is Simplex, identify the exact 5466-series module, and match the termination and cable arrangement before approving the replacement.
