WOODWARD 9907-164 Detailed Information

WOODWARD 9907-164 is a digital microprocessor controller module designed specifically for operating steam turbines,turbogenerators,and turboexpander modules.It uses the staged actuators of the steam turbine(one or both)to drive the steam inlet valve to achieve precise control of parameters such as turbine speed and load.

Main functions

Control functions

Speed​​control:By adjusting the opening of the turbine inlet valve,the turbine speed can be precisely controlled.

Load control:According to system requirements,the output power of the steam turbine is adjusted to meet load changes.

Start-stop control:Automatic start-stop control of the compressor and turbine is achieved to improve the automation level of the system.

Data acquisition and monitoring

It can collect and monitor data related to turbine performance,such as speed,temperature,pressure,etc.

Real-time monitoring of the operating status of the turbine to ensure that it operates within a safe and effective working range.

Communication Interface

Supports a variety of communication interfaces,such as serial communication(RS-232,RS-485),Ethernet or fieldbus protocols(Profibus,Modbus).

Easy to exchange data with other devices and remote monitoring.

Self-diagnosis and fault detection

With self-diagnosis function,it can detect turbine faults and issue alarms.

Improve system reliability and safety.

Technical Specifications

Input/Output Module

Equipped with a range of discrete and analog inputs,including 16 contact inputs(4 of which are dedicated and 12 are programmable)and 6 programmable current inputs(4 to 20mA).

Display and Control

The operator control panel on the front of the device can display two lines of text with 24 characters per line.

The menu-driven software can be configured and changed in the field by the field operator.

Other Specifications

Dimensions:14W x 11H x 4D(inches).

Operating Temperature:-4 to+140 degrees Fahrenheit.

Storage Temperature:-40 to+185 degrees Fahrenheit.

Input voltage:+24Vdc,1A.

Standard functions

Critical speed avoidance:Prevents the turbine from reaching critical speed during startup and operation to avoid mechanical damage.

Valve limiter:Limits the opening of the valve to prevent the turbine from overspeeding or overloading.

Automatic start sequence:Automatically starts the turbine in a preset sequence to ensure stable operation of the system.

Shutdown first-out indicator:During the shutdown process,indicates which valve or actuator is closed first to ensure safe shutdown of the system.