5464-338 Woodward ProTech 203

Price:

Product basic information
Manufacturer: Woodward
Model: 5464-338
Belonging to the famous 505 series
Supports multiple communication protocols and can be smoothly integrated with the existing control system of the factory
Core application: Designed specifically for speed control and protection of steam turbines
5464-338 controller has stable performance and high reliability

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5464-338 Woodward ProTech 203

The 5464-338 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 5464-338
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:
- 5464-338 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.

For example, the microcontroller that controls a car engine must be able to operate at temperature limits that general computers cannot withstand.

The microcontroller of a car in Alaska, USA needs to operate in cold weather of minus 34 degrees Celsius, while the same controller in Nevada, USA needs to operate in a hot

environment of above 49 degrees Celsius. Combined with the heat generated by the engine operation, the temperature of the engine case can reach as high as 65-80 degrees Celsius above zero.

The embedded microcontroller used inside the video recorder does not have such strict requirements.

In fact, there are various types of processors used as microcontrollers. For example, the mobile phone mentioned in the article “Working Principles of Digital Mobile

Phones” contains a Z-80 processor. The Z-80 processor is an 8-bit microprocessor that was born in the 1970s and was initially used in home computers at that time.

The Garmin global positioning system in the working principle of GPS receivers includes a low-power version of Intel 80386 processor, which is said to be like this.

The Intel 80386 processor was originally designed specifically for desktop computers.

In many products, such as microwave ovens, the requirements for microcontroller performance are very low, and price is the main consideration factor. In this situation,

manufacturers began designing dedicated microcontroller chips – an embedded central processing unit designed specifically for low cost, small size, and low power consumption.

Motorola 6811 and Intel 8051 are both successful examples of this type of chip. In addition, there is a series of controllers called “PIC microcontrollers” produced by Microchip, which are also very

popular. By today”s standards, these central processing units are unbelievably simple; But the price for bulk purchases is very low, and often only one piece is needed to meet the needs of product designers.

A typical low-end microcontroller chip has approximately 1000 bytes of read-only memory and 20 bytes of random access memory, with 8 input/output pins. Mass production of this chip costs only a few cents

per unit. Of course, you can”t expect to run programs like Microsoft Word on

this chip – because Microsoft Word requires about 30 megabytes of random access storage space and a processor that can execute millions of instructions per second. However, controlling a microwave oven

does not require a complex program like Microsoft Word. What you need to accomplish with a microcontroller is a specific task, and low-cost, low-power operation is the most important.

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: 5464-338 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).
5464-338 Weight: Approximately 9.11 pounds (4.13 kilograms).

IV. Application Scenarios

Steam Turbine Control: 5464-338Suitable 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.