5448-903 Woodward speed control module

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Product basic information
Manufacturer: Woodward
Model: 5448-903
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
5448-903 controller has stable performance and high reliability

Categories: WOODWARD
Tags: - Actuator 5448-903 controller debugger module Motor touch screen WOODWARD

5448-903 Woodward speed control module

The 5448-903 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 5448-903
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:
- 5448-903 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.

Brushless motor controller: suitable for brushless DC motors, it changes the speed and direction of the motor by changing the input pulse width and frequency.

4、 The main function of the motor controller

The motor controller plays a crucial role in the motor system, mainly including the following aspects:

Control motor speed: The motor controller can control the motor speed to meet different application requirements. For example, in electric vehicles,

the controller can adjust the motor speed in real time according to the driver”s instructions to maintain stable vehicle speed.

Control motor direction: The motor controller can control the direction of the motor, allowing it to rotate forward, reverse, or stop. This function is particularly

important in fields such as automation equipment and logistics equipment.

Control motor acceleration and deceleration: The motor controller can control the acceleration and deceleration process of the motor to gradually start or stop,

reducing the impact of the motor when starting or stopping. This is of great significance for protecting the motor and extending its service life.

Protecting the motor: The motor controller has multiple protection functions such as overcurrent, overheating, and overvoltage, which can timely cut off the power

supply in case of abnormal situations in the motor, preventing motor damage and fire accidents.

Energy conservation and emission reduction: By monitoring and optimizing the operation status of the motor in real-time, the motor controller can reduce energy

consumption and improve energy utilization efficiency. In the fields of new energy such as wind power and solar power, motor controllers can more effectively utilize

renewable energy by adjusting the operating status of motors.

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: 5448-903 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).
5448-903 Weight: Approximately 9.11 pounds (4.13 kilograms).

IV. Application Scenarios

Steam Turbine Control: 5448-903Suitable 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.