The WOODWARD 9907-164 is a high-performance digital microprocessor controller module, specifically designed for the precise control and monitoring of industrial turbines (such as steam turbines, gas turbines), turbine generators, and turbine expanders. The following is an introduction to this module:
I. Product Features
High Precision Control:
Utilizing advanced PID control algorithm, it can achieve high-precision control of the steam turbine speed and load, ensuring stable operation of the unit under various operating conditions and meeting the requirements of the process.
Complex control logic is realized through high-precision algorithms, such as critical speed avoidance and valve limit.
Flexible I/O Configuration:
Equipped with a rich set of input and output interfaces, including programmable analog input and digital input, it can flexibly connect various on-site sensors and actuators to meet the control requirements of different applications.
Specific configurations include 16 contact inputs (4 dedicated, 12 programmable) and 6 programmable current inputs (4-20 mA).
Comprehensive Protection Functions:
Built-in comprehensive protection functions, including overspeed protection, valve limit, automatic startup program, and first trip indication, can effectively protect the safe operation of the steam turbine unit and prevent damage caused by operational errors or equipment failures.
Easy-to-operate Human-Machine Interface:
The controller is equipped with an intuitive operation panel, including a 30-key multi-function keyboard and two lines of 24-character display. Users can easily perform on-site configuration, parameter adjustment, and operation status monitoring through menu-driven software.
Strong Communication Capability:
Supports standard RS-232/RS-422 serial communication interfaces and is compatible with Modbus communication protocol, facilitating data exchange and integration with upper-level monitoring systems or other automation devices to achieve higher-level system control and management.
Field Configurability:
Control parameters and functions can be configured and adjusted on-site through the operation panel without the need for additional programming tools, significantly simplifying installation, commissioning, and maintenance work.
Application Domains
Power Generation Industry: Used to control the speed and power output of steam turbine generators to ensure stable operation of the power grid.
Petrochemical Industry: Applied to drive critical equipment such as compressors and pumps, achieving precise control of process parameters.
Mechanical Drive Field: Used to control various industrial turbomachinery, such as fans and pumps, to improve production efficiency and operational reliability.
Waste Heat Recovery and Energy Conversion Systems: Controls steam turbines in these systems to achieve efficient utilization of energy.
Technical Parameters
Model: 9907-164
Manufacturer: WOODWARD (Woodward)
Input Voltage: +24 Vdc 1 A
Analog Input: 6 programmable current inputs (4-20 mA)
Digital Input: 16 contact inputs (4 dedicated, 12 programmable)
Communication Interface: RS-232/RS-422, compatible with Modbus protocol
Operation Panel: 30-key multi-function keyboard, 2 lines x 24-character display
Operating Temperature: -20°C to +60°C (-4°F to +140°F)
Storage Temperature: -40°C to +85°C (-40°F to +185°F)
Humidity Range: 95%RH at 20 to 55°C (48 hours continuous)
Protection Grade: IEC 60529, IP56
Weight: 4.13 kg (9.11 lbs)
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