9907-802 WOODWARD Debugger unit

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Product basic information
Manufacturer: Woodward
Model: 9907-802
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
9907-802 controller has stable performance and high reliability

Categories: WOODWARD
Tags: - Actuator 9907-802 controller debugger module Motor touch screen WOODWARD

9907-802 WOODWARD Debugger unit

The 9907-802 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 9907-802
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:
- 9907-802 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.

Classification of Fire Linkage Controllers – Functions and Performance of Fire Linkage Controllers

The fire linkage controller is the core component of the fire linkage control equipment. It receives fire alarm information from the fire

alarm controller and implements linkage control and status monitoring of automatic fire-fighting equipment according to preset logic. The fire

linkage controller can directly send control signals and control the controlled

equipment on site through the driving device. For situations where the control logic is complex and it is inconvenient to achieve direct control

on the fire linkage controller, the controlled equipment can be indirectly controlled through fire electrical control devices (such as fire shutter controllers, gas fire extinguishing controllers, etc.).

1、 Classification
Fire linkage controllers can be classified according to their structural form, usage environment, and explosion-proof performance. According to

the structural form, it can be divided into cabinet fire linkage controllers, desktop fire linkage controllers, and wall mounted fire linkage controllers (see Figure 2-2)
According to the usage environment, it can be divided into land-based fire linkage controllers and marine fire linkage controllers. According to

explosion-proof performance, it can be divided into explosion-proof fire linkage controllers and non explosion-proof fire linkage controllers

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: 9907-802 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).
9907-802 Weight: Approximately 9.11 pounds (4.13 kilograms).

IV. Application Scenarios

Steam Turbine Control: 9907-802Suitable 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.