Woodward 5464-843 Price Discount | In Stock
1.5464-843 Product Overview
The Woodward 5464-843 belongs to the 505/505E series digital turbine controllers. It is a microprocessor-based control module designed for single-valve steam turbines,
including single extraction/admission systems or split-range actuator configurations.
The controller features a front panel Operator Control Panel (OCP) with a two-line, 24-character display and multi-function keypad, allowing easy on-site configuration and monitoring.
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2. 5464-843 Technical Specifications and Parameters
| Parameter | Details |
|---|---|
| Power Supply | +24 VDC, approx. 1 A |
| I/O Outputs | Discrete Outputs: 8 Analog Outputs: 6 Actuator Outputs: 2 |
| Display / HMI | Two-line, 24-character LCD, with multi-function keypad |
| Dimensions | Approx. 14 × 11 × 4 in (35.6 × 27.9 × 10.2 cm) |
| Weight | Approx. 9.11 lbs (4.13 kg) |
| Operating Temperature | –4 to +140 °F (–20 to +60 °C) |
| Storage Temperature | –40 to +185 °F (–40 to +85 °C) |
| Humidity Standard | 95% RH at 20-55 °C for 48 hours without damage |
| Protection Class | Typically meets industrial dust and water protection standards |
| Communication Protocol | Supports Modbus, RS-232 / RS-422 serial interfaces |
3. Brand History
Woodward, Inc., founded in 1870 and headquartered in Fort Collins, Colorado, USA, is a global leader in energy control systems. The company has a long history of innovation in turbine control, engine management,
and power generation systems.
Woodward products are widely recognized for their reliability and precision in demanding industrial and power generation applications.
4. Applications in Industrial Automation
The 5464-843 plays a critical role in industrial automation and power generation environments:
- Steam Turbine Control: Manages startup, speed regulation, and extraction/admission control of steam turbines.
- Power Generation Systems: Used in power plants to regulate turbine-driven generators for stable frequency and load management.
- Compressor and Pump Drive Control: Ensures precise speed control for turbine-driven compressors and pumps.
- Process Industry Applications: Applied in chemical plants, refineries, and other industries requiring precise turbine operation.
- Safety and Protection Functions: Includes overspeed protection, critical speed avoidance, actuator travel limits, and event logging for operational safety.
The microcontroller used here is designed specifically for the convenience of daily life. It is a microcontroller developed by
Parallax called “BASIC Stamp”. BASIC Stamp is a PIC microcontroller compatible with the BASIC programming language.
The use of BASIC programming language makes software writing for microcontrollers very easy. The microcontroller comes
with a 9-volt battery powered motherboard that can be programmed by connecting it to a port on the computer. No manufacturer will
use BASIC Stamps in their actual products – because Stamps are expensive and relatively slow. However, using Stamps for
experimental modeling or one-time product demonstrations is very common because its setup and use are incredibly easy.
The microcontroller is called “Stamps” because it is only the size of a postage stamp.
Parallax has produced two versions of BASIC Stamp: BS-1 and BS-2. Here is a comparison of two versions:
What is a microcontroller? Working principle and application analysis
The microcontroller used in this article is called “BASIC Stamp Revision D” (as shown in the following figure)
BASIC Stamp Revision D is a BS-1 chip installed on a motherboard powered by a 9-volt battery. The supporting components
include: voltage regulator, program connection cable, input/output pin pins, and a small modeling area. You can also purchase
a BS-1 chip separately and connect it to other components on the breadboard. The revised version D is just more convenient.
From the above table, it can be seen that you cannot create something very peculiar using BASIC Stamp. The 75 line program
of BS-1 (a 256 byte electrically erasable read-only memory can store approximately 75 lines of BASIC language programs) has
significant limitations. However, you can create something exquisite, the Stamp is very compact and powered by batteries,
which means it can be used almost anywhere
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