Woodward Netcon CPU-040 Module for MicroNet Control Systems

Overview of the Woodward 5466-352 CPU Module

The Woodward 5466-352 is a Netcon CPU-040 module for MicroNet control systems.
Woodward developed this CPU module for demanding turbine and generator control applications.
The 5466-352 uses a 68030 microprocessor that communicates via dual-port RAM connected to the VME bus interface.
This microprocessor communicates with each of the four network communications processors through a dedicated dual-port RAM.
For stand-alone MicroNet systems, operators can use the Service panel to communicate with the CPU module.
Panel mount design with LED indication simplifies installation in control cabinets.

Technical Specifications of the 5466-352 CPU Module

Below are the complete technical parameters for this CPU module.

Microprocessor and Memory Architecture

A 68030 microprocessor serves as the central processing unit for the Woodward 5466-352.
This processor communicates with the VME bus interface through dual-port RAM for fast data exchange.
Dual-port RAM allows simultaneous access from the CPU and VME bus without contention.
The 5466-352 manages all control algorithms and application execution on this processor.
For network communication, the module includes four dedicated communications processors.
Each of these four processors connects to the main CPU through its own dual-port RAM.
Thus, the 5466-352 handles both control logic and network traffic efficiently.

VME Bus Integration and System Architecture

The 5466-352 connects to the VME bus for integration with other MicroNet modules.
VME bus architecture provides high-speed data transfer between the CPU and I/O modules.
Other Woodward modules in the same chassis communicate with the CPU through this bus.
The Woodward 5466-352 coordinates all I/O scanning and control execution.
For large systems, multiple CPU modules can reside on the same VME bus.
Thus, the module scales easily for growing control system requirements.

Network Communications Processors

The 5466-352 includes four separate network communications processors.
Each processor handles communication with external networks and field devices.
Dual-port RAM connects each network processor to the main 68030 CPU.
This architecture offloads communication overhead from the main processor.
The Woodward 5466-352 supports various network protocols through these processors.
For redundant systems, multiple network paths provide fault tolerance.
Thus, the module maintains communication even under heavy network loads.

Service Panel Communication and Stand-Alone Operation

For stand-alone MicroNet systems, operators can use the Service panel to communicate with the 5466-352.
The Service panel provides direct access to CPU status and diagnostic information.
Operators can monitor application execution without additional software tools.
For simplex CPU systems, toggle the CPU switch on the Woodward 5466-352 to the reset position.
This reset action initiates a controlled restart of the application.
Using AppManager software, operators can also stop applications on MicroNet Plus 5200 or CPU P1020 systems.
If using the CPU reset button instead, the application will start automatically in about 2 minutes.

IOLOCK Safety State and Fault Handling

The 5466-352 includes watchdog logic for failsafe operation during CPU failures.
When the CPU fails, the watchdog logic causes the module to enter an IOLOCK state.
In IOLOCK state, all output circuits and signals become de-energized for safety.
For output modules, this action prevents dangerous actuator or valve positions.
When the CPU fails, an IOLOCK signal propagates to all modules and expansion racks.
This signal causes every connected module to enter the IOLOCK state simultaneously.
Thus, the Woodward 5466-352 ensures a safe system state during CPU faults.

Manual Reset and System Recovery

The 5466-352 features a manual reset capability for system recovery after faults.
After correcting the fault condition, operators must perform a manual reset.
This manual action prevents automatic restart into an unsafe condition.
For the CPU reset button, pressing it restarts the application automatically in about 2 minutes.
For complete system recovery, follow the proper sequence in Woodward documentation.
The Woodward 5466-352 LED indicators show the current system status.
Thus, operators know when the system requires manual intervention.

Fiber Optic Coder and Control System Integration

The 5466-352 works with fiber optic coders for precise speed sensing.
Fiber optic technology provides noise-immune feedback for turbine control.
The module integrates into a 2.08 control system architecture for Woodward systems.
Panel mount design allows direct installation into standard control cabinets.
The Woodward 5466-352 includes LED indication for status at a glance.
For system integration, the module communicates through the VME bus backplane.
Thus, the CPU works seamlessly with other Woodward MicroNet components.

PLC Control Module Functionality

The 5466-352 functions as a PLC control module for turbine applications.
This CPU executes ladder logic and structured text programs for machine control.
The module scans inputs, executes control logic, and updates outputs deterministically.
For complex algorithms, the 68030 processor provides ample computational power.
The Woodward 5466-352 handles both discrete and analog control requirements.
Thus, the module replaces traditional PLCs in Woodward control systems.

Installation Guidelines for the 5466-352 CPU Module

Follow these steps to install the Woodward 5466-352 correctly.

1. Disconnect all power sources before handling the module.

2. Mount the 5466-352 securely in the MicroNet chassis slot.

3. Connect the VME bus backplane through the edge connector.

4. For panel mount versions, secure the module to the panel.

5. Connect all network cables to the four communication processors.

6. Apply power to the chassis and verify LED indications.

7. Toggle the CPU switch to reset position for initial startup.

8. Wait approximately 2 minutes for the application to start.

9. Use the Service panel to verify communication with the CPU.

10. Test the IOLOCK response by simulating a fault condition.

Only qualified turbine control technicians should install this CPU module.

Package Contents for the Woodward 5466-352

• One Woodward 5466-352 Netcon CPU-040 module

• VME bus edge connector for chassis installation

• Panel mounting hardware (if applicable)

• LED status indicator guide

• Installation and configuration manual

Common FAQs About This Woodward 5466-352 CPU Module

Q1: What processor does the 5466-352 use?
A1: The Woodward 5466-352 uses a 68030 microprocessor for control execution. This processor communicates through dual-port RAM with the VME bus interface.

Q2: How many network communications processors does the module have?
A2: The 5466-352 includes four separate network communications processors. Each processor connects to the main CPU through a dedicated dual-port RAM.

Q3: What happens when the CPU fails?
A3: When the CPU fails, the Woodward 5466-352 enters an IOLOCK state. The module also sends an IOLOCK signal to all modules and expansion racks.

Q4: How do operators communicate with the CPU in stand-alone mode?
A4: Operators can use the Service panel to communicate with the 5466-352 in a stand-alone MicroNet system. No additional software tools are required.

Q5: How long does the application take to restart after a reset?
A5: When using the CPU reset button, the Woodward 5466-352 automatically restarts the application in about 2 minutes. The Service panel can also initiate restarts.

Typical Applications for the Woodward 5466-352

The Woodward 5466-352 excels in turbine and generator control system applications.
You can use it for gas turbine sequencing and speed control.
Similarly, the CPU module works well for steam turbine governing systems.
For compressor control, the 5466-352 handles anti-surge and performance algorithms.
Generator load sharing and protection also run on this CPU platform.
Industrial power systems rely on the Woodward 5466-352 for reliable control.
In short, any MicroNet-based control application suits this CPU module.

Ordering and Logistics Information

This Woodward 5466-352 Netcon CPU-040 module ships from our global distribution center.
Original factory packaging protects this sensitive electronic module during transit.
For volume pricing on Woodward Netcon and MicroNet products, please contact our team.
Before placing an order, verify your system architecture, power requirements, and application needs.
For urgent turbine control needs, we offer express shipping options worldwide.