Woodward 5439-929 from SAUL ELECTRIC | In Stock
1.5439-929 Product Overview
The Woodward 5439-929 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.
contacts： Mike
+86 18350224834 （WeChat/WhatsApp）
Email：Mike18350224834@gmail.com
2. 5439-929 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 5439-929 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.
Classification and Application of Drivers
The driver is a crucial part of the motor control system, responsible for converting control signals into electrical energy output
to drive the motor to operate normally. According to the different types and application scenarios of motors, drivers can be divided into
brushed motor drivers, brushless motor drivers, stepper motor drivers, and servo motor drivers.
The brushed motor driver is driven by an H-bridge circuit, which consists of a core circuit H-bridge and some peripheral circuits
to form a DC brushed motor driver. Brushed motor drivers are divided into integrated circuit form and discrete component form.
The H-bridge in the form of integrated circuits is suitable for applications with small to medium power requirements, while the
H-bridge in the form of discrete components is suitable for applications with high or ultra-high power requirements. It should be noted
that the pins of MCU cannot directly drive MOS transistors and other components,
and a dedicated MOS transistor driver chip needs to be added.
Brushless motor drivers also use H-bridge circuits for driving, but each phase is driven by a half bridge circuit, requiring a
total of three half bridges. Brushless motor
drivers are also divided into integrated circuit form and discrete component form, but the discrete component form only separates
the half bridge circuit. Brushless motor drivers can achieve commutation operations and are suitable for applications that require high precision.
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