5464-444 Woodward speed control module
The 5464-444 is a microprocessor-based digital governor controller produced by Woodward, belonging to its classic 505 series.
It is primarily designed for speed control and protection of steam turbines. Below is a detailed introduction to this product:
I. Product Overview
- Brand and Model: Woodward 5464-444
- Series: 505 Series Digital Governor
- Type: Microprocessor-based controller
- Purpose: Specifically designed for steam turbines to control their speed and provide overspeed protection.

II. Core Functions
- Speed Control:
- 5464-444 Precisely controls the speed of steam turbines by adjusting steam inlet flow.
- Supports single-range or split-range actuators to accommodate turbines of different sizes.
- Overspeed Protection:
- Incorporates triple independent overspeed protection logic to ensure rapid shutdown in case of overspeed, preventing equipment damage.
- Provides an overspeed test button for convenient on-site testing of protection functions.
- Emergency Shutdown:
- Equipped with an emergency stop button for immediate shutdown in emergency situations.
- System Protection:
-
- Automatically switches control modes upon sensor failure to ensure uninterrupted system operation.
- Offers local/remote control priority selection to adapt to different operational scenarios.

-
Let”s consider upgrading the resolution of the color TFT LCD from QVGA to VGA (640×480 pixels). As mentioned earlier, for a full-color QVGA panel,
the data size of one image is 230400 bytes. Similarly, for WVGA panels: 640x480x24 bits=307200×24 bits=921600 bytes. This means
that WVGA requires four times the data capacity of QVGA. Improving display resolution also increases the required memory capacity and processing requirements,
similar to the challenges faced when transitioning from monochrome to color.
In both cases, whether converting to color or upgrading to higher resolution, introducing an Epson LCD controller can achieve these enhancements
without replacing the existing CPU. This method effectively manages the increased demand for memory capacity and performance while utilizing the current hardware settings.
Types of Epson LCD controllers
SRAM integrated products
These products include built-in memory (up to 1024KB) and support LCD displays with resolutions up to WVGA (480×800).
External SDRAM integrated products
Products that support high-resolution displays up to XGA (1024×768) require external memory to operate.
Simple LCDC
This product line has the basic functions of LCDC and is designed specifically for low cost and low power consumption.
III. Technical Specifications
- Power Supply: 18-32 VDC, supporting 24VDC input.
- Display: Two-line x 24-character LED display for clear indication of operating status and parameters.
- Enclosure: NEMA 4X or IEC 60529 IP56 rated for protection against harsh industrial environments.
- Inputs/Outputs:
- Inputs: 6 programmable current inputs, 16 discrete contact inputs.
- Outputs: 2 actuator outputs, 8 relay outputs, 6 programmable current outputs.
- Communication Interfaces: 5464-444 Supports RS-232, RS-422, and RS-485 hardware interfaces for easy integration with host computers or other devices.
- Software: Equipped with OpView™ and 505View software for parameter configuration, monitoring, and fault diagnosis.
- Operating Temperature: -20 to +60°C (some models support -4 to +140°F).
- Storage Temperature: -40 to +85°C (some models support -40 to +185°F).
- 5464-444 Weight: Approximately 9.11 pounds (4.13 kilograms).
IV. Application Scenarios
- Steam Turbine Control: 5464-444Suitable for steam turbines of various sizes, including industrial steam turbines, small grid turbo-generators, and turboexpanders.
- Single Extraction and Admission Applications: Designed for operating steam turbines in single extraction and/or admission applications.
- On-Site Programming: Allows on-site operators to program and adjust parameters through an integrated operator control panel, adapting to different operating conditions.
V. Product Advantages
- High Reliability:
- Microprocessor-based design ensures precise control and stability.
- Triple independent overspeed protection logic provides multiple layers of safety.
- Flexibility:
- Supports various actuator and sensor configurations to accommodate different turbine models.
- Offers a rich set of input/output interfaces for easy system expansion and integration.
- Ease of Use:
- Two-line x 24-character LED display provides an intuitive operating interface.
- A 30-key multifunctional keyboard simplifies parameter configuration and operation.
- Compatibility:
- Supports multiple communication protocols for easy integration with DCS, PLC, and other systems.
- Provides OpView™ and 505View software for remote monitoring and fault diagnosis.
Woodward ship parts module debugger controller actuator generator set
8250-570 WOODWARD Debugger unit,
8200-1300 Woodward speed control module,
8904-289 Woodward ProTech 203,
3005-510 Woodward speed control module,
8234-167O Woodward overspeed protector,
9905-096 Woodward ProTech 203,
5501-428 Woodward Ship Spare Parts,
9907-162 Woodward Ship Spare Parts,
5441-661 Woodward Ship Spare Parts,
9907-355 Woodward ProTech 203,





Reviews
There are no reviews yet.