Description
Product Overview
The Woodward 5464-658 is a four-channel digital speed sensor module in the MicroNet control-system family. It receives signals from magnetic pickup units (MPUs) used to monitor rotating equipment, supplying speed-related input data to compatible control hardware. Speed feedback is an important input in engine, turbine, and generator applications, where control logic may use measured rotational speed for governing, monitoring, sequencing, and protective functions. The module’s role is signal acquisition; the overall control response depends on the configured MicroNet system and its application software.
In a compatible installation, the Woodward 5464-658 supports four-channel MPU speed sensing. Multiple speed inputs can provide information from different rotating shafts or sensing locations, depending on the control-system design. The exact input wiring, supported signal characteristics, diagnostic behavior, and software configuration must be confirmed against the applicable Woodward MicroNet manual. Do not infer input voltage limits, accuracy, frequency range, or sensor compatibility solely from the part number when those values have not been verified against the correct manual revision.
For maintenance teams sourcing the Woodward 5464-658, lifecycle status is a key consideration. Woodward’s product change notice lists the module as obsolete and identifies 5466-5000 as the replacement for the four-channel MPU configuration. The notice states that the replacement modules require Coder version 4.06 or later. Hardware substitution should therefore include a review of the installed controller, Coder version, application configuration, and any project-specific requirements before the change is approved.
Before installing a replacement, document the original module revision and wiring, confirm the correct channel assignments, and follow the site’s shutdown and commissioning procedures. For used or refurbished stock, request unit-specific inspection and functional test records. Confirm condition, warranty, and return terms before purchase, especially where the module is part of a control or protection function that requires formal validation.
Product Introduction
Incorrect or missing speed feedback can disrupt the operation of an engine or turbine control system. The Woodward 5464-658 MicroNet speed sensor module provides four MPU input channels for compatible control installations. Because this model is obsolete, verify hardware revision, application software requirements, and replacement compatibility before ordering a spare or planning a retrofit.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Woodward |
| Model | 5464-658 |
| Product family | MicroNet |
| Product type | Digital speed sensor module |
| Number of channels | 4 |
| Sensor input type | Magnetic pickup unit (MPU) |
| Primary function | Rotational-speed signal acquisition |
| Application | Engine, turbine, and generator control |
| Lifecycle status | Obsolete |
| Manufacturer-listed replacement | 5466-5000 |
| Replacement software requirement | Coder version 4.06 or later |
| Exact input frequency range | Verify against the applicable manual |
| Input amplitude limits | Verify against the applicable manual |
| Power requirements | Verify against the module documentation |
| Isolation characteristics | Verify against the module documentation |
| Operating temperature | Verify against the applicable hardware documentation |
| Installation | Compatible MicroNet hardware configuration |
| Condition | Confirm per unit |
| Testing and warranty | Confirm with supplier |
The four-channel MPU configuration and replacement information are documented in Woodward’s product change notice. Other electrical specifications should be checked against the applicable MicroNet manual rather than copied from listings that may describe a different revision.
5464-658
Related Products
These models are related MicroNet speed-sensing or control-system modules. Their input configurations and functions differ, so verify the system requirements before choosing an alternative.
- 5466-5000 — Four-channel MPU speed sensor module listed by Woodward as the replacement for 5464-658. Coder version 4.06 or later is required.
- 5464-659 — Four-channel proximity-probe speed sensor module; a different sensor-input configuration.
- 5464-414 — Three-channel MPU and one-channel eddy-probe configuration.
- 5464-834 — Three-channel MPU and one-channel eddy-probe module identified in the same replacement notice.
- 5464-844 — Two-channel MPU and two-channel proximity-probe configuration.
- 5464-850 — Three-channel MPU and one-channel proximity-probe configuration.
- 5466-404 — Four-channel MPU speed module included in Woodward’s legacy-module replacement notice.
- 5464-643 — Discrete input module in the MicroNet hardware family; not a speed-sensing substitute.
- 5464-648 — Eight-channel analog output module identified in MicroNet hardware listings; a different I/O function.
Frequently Asked Questions
Q1: What is the Woodward 5464-658 used for?
It is a four-channel MicroNet digital speed sensor module designed for MPU signals. It supplies speed-related input data to compatible engine, turbine, or generator control applications.
Q2: Can the 5464-658 be hot-swapped while the system is running?
Do not assume live replacement is supported. Follow the applicable MicroNet manual and the equipment manufacturer’s shutdown procedure. If the module participates in speed governing or protective functions, validate the control system before returning equipment to service.
Q3: Is the Woodward 5466-5000 a replacement for the 5464-658?
Yes. Woodward’s product change notice identifies 5466-5000 as the replacement for the 5464-658 four-channel MPU module. The notice specifies Coder version 4.06 or later for the replacement family. Confirm the installed controller and application requirements before substitution.
Q4: What firmware or software compatibility checks are required?
Check the installed MicroNet controller, Coder version, application configuration, and module revision. The replacement notice’s Coder requirement is a minimum condition to verify, not proof that every existing application can be transferred without modification.
Q5: Does replacing the module preserve the existing control configuration?
Do not assume that it does. Record the existing configuration and channel assignments, and follow the approved backup and restoration process. Verify speed readings and related control responses during commissioning.
Q6: How can I verify the module’s authenticity and condition?
Check the nameplate, complete part number, hardware revision, connector condition, and signs of repair or damage. Request photographs of the actual unit and a test report identifying the checks performed. Confirm whether the unit is new old stock, used, or refurbished.
Q7: What should I confirm before purchasing an obsolete 5464-658?
Confirm the exact part number and revision, four-channel MPU configuration, compatibility with the installed MicroNet system, condition, test scope, warranty, and return terms. If considering 5466-5000, check the Coder version and system requirements before ordering.
