Description
Woodward 5437-672
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 5437-672 |
| Manufacturer | Woodward |
| Product Type | Actuator Controller Field Termination Module |
| Platform | NetCon / MicroNet |
| Primary Function | Actuator field termination |
| Associated Controller | 5501-432 |
| Associated Cable | 5417-041 |
| Controller Channels | 2 |
| Typical System | Turbine control |
| Field Interface | Actuator wiring termination |
| Module Role | Interface between controller electronics and field actuator wiring |
| Revision | Verify from installed nameplate |
Important: Some secondary catalogs describe 5437-672 as a generic “NetCon Field Terminal Module,” while Woodward’s own documentation provides the more useful system-level identification: it is associated with the two-channel actuator controller module 5501-432.
Product Introduction
The Woodward 5437-672 is a NetCon/MicroNet field termination module used to connect field actuator wiring to the associated Woodward actuator-control electronics. It is not the governor CPU or the actuator controller itself. Woodward’s 5009FT MicroNet+ documentation pairs the 5437-672 FTM with the 5501-432 two-channel actuator controller through a 5417-041 interconnection cable.
For maintenance work, that distinction is important. The FTM forms part of the signal path between the control module and field actuator, so connector allocation, channel wiring, actuator type, cable assembly, and module revision need to match the original installation. Woodward also documents 5437-672 in actuator-driver configurations using bipolar output arrangements.
5437-672
Engineering Pain Point
The primary replacement risk is treating 5437-672 as a generic I/O terminal board. It is tied to a specific Woodward actuator-control architecture. Installing a similar-looking FTM without confirming the mating controller and field wiring can result in incorrect actuator-channel assignment or an incompatible signal interface.
Typical Applications
- Steam turbine control: Field termination for actuator-control channels in Woodward turbine control systems.
- Gas turbine control: Interface hardware between MicroNet/NetCon control electronics and field actuators.
- Two-channel actuator control: Used with the documented 5501-432 two-channel actuator controller.
- Legacy MicroNet maintenance: Replacement of field termination hardware while preserving an existing control-system architecture.
Technical Pitfalls to Avoid
- Match the controller. The strongest OEM documentation associates 5437-672 with the 5501-432 two-channel actuator controller. Do not substitute based solely on connector appearance.
- Verify the interconnection cable. The Woodward configuration documentation pairs the FTM with 5417-041. Cable pinout and termination should be checked before commissioning.
- Check actuator signal type. Woodward documentation lists 5437-672 with bipolar actuator-driver configurations, including different current-output versions. The actual actuator-driver module determines the applicable current range.
- Do not confuse the FTM with the controller. The 5437-672 provides field termination; the 5501-432 is the two-channel actuator controller. They perform different functions.
- Record the hardware revision. Secondary records show revisions such as 5437-672G and 5437-672H. For a legacy system, compare the revision and physical configuration with the installed spare before approving replacement.
- Check actuator wiring before energizing. Confirm channel assignment, polarity, actuator feedback arrangement, and field terminal mapping against the original cabinet drawings.
Related Products
- Woodward 5501-432 — Two-channel actuator controller module associated with 5437-672 in Woodward system documentation.
- Woodward 5417-041 — Interconnection cable specified between the actuator controller and 5437-672 FTM.
- Woodward 5501-1428 — Two-channel ±12.25 mA actuator driver configuration documented with 5437-672.
- Woodward 5501-1429 — Two-channel ±30 mA actuator driver configuration using the same FTM interface.
- Woodward 5501-1430 — Two-channel ±60 mA actuator driver configuration associated with 5437-672.
- Woodward 5501-1431 — Two-channel ±120 mA actuator driver configuration.
- Woodward 5501-1432 — Two-channel ±245 mA actuator driver configuration.
- Woodward 5437-845 — Separate DIN-rail notch filter documented for systems using 5437-672 where actuator-excitation noise around 3 kHz is a concern.
Procurement check: For 5437-672, verify the complete part number and revision, mating 5501-432 controller, 5417-041 cable, actuator-driver current configuration, terminal assignment, and installed MicroNet/NetCon architecture. The 5437-672 is an interface component, so matching the field wiring and controller combination is more important than simply confirming that the module fits the cabinet.
