9907-175 Woodward speed control module

Price:

Product basic information
Manufacturer: Woodward
Model: 9907-175
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
9907-175 controller has stable performance and high reliability

Categories: WOODWARD
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9907-175 Woodward speed control module

The 9907-175 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 9907-175
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:
- 9907-175 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.

Definition of Properties of Drivers

A drive is a hardware device used to drive a certain type of device, specifically referring to a disk drive in the computer field.

A driver broadly refers to the hardware that drives a certain type of device. In the field of computer science, the role of drivers is like a bridge,

connecting hardware and operating systems. Specifically, disk drives enable computers to recognize and process information in storage areas,

which can be floppy disks CD、 Hard drives or other types of disks. Users can view the contents of these storage areas formatted with a file system and accompanied by a

drive letter by clicking on the corresponding icon in Windows Explorer or My Computer.
In addition, there are different types of drives, such as floppy disk drives, optical disk drives, hard disk drives, etc., which each correspond to different storage devices.

Moreover, drivers are crucial for the normal operation of hardware devices, and if the correct drivers are not installed, the hardware devices may not function properly. For example,

if the printer does not have the correct driver installed, it may not be able to print files, and outdated graphics card drivers may cause computer screen lag, etc.

Therefore, in order to ensure the normal operation of hardware devices, users need to regularly update and install appropriate drivers. This can be installed by

manually downloading the latest driver from the hardware device manufacturer”s official website, or by using software such as Driver Genius to automatically detect updates

Specifically, a driver is a critical component used to control the operation of electronic devices. In the field of computer science, the role of drivers is like a bridge,

connecting hardware and operating systems. Disk drives enable computers to recognize and process information in storage areas, which can be floppy disks CD、

Hard drives or other types of disks. Users can view the contents of these storage areas formatted with a file system and accompanied by a drive letter by clicking

on the corresponding icon in Windows Explorer or My Computer. In addition, the driver can also convert the power of a specific electronic device into other formats

of power to control its functions, such as motor control, signal processing, etc

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: 9907-175 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).
9907-175 Weight: Approximately 9.11 pounds (4.13 kilograms).

IV. Application Scenarios

Steam Turbine Control: 9907-175Suitable 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.