Here is the product specification document for Woodward’s 9907-164:
1. Product Description
Woodward 9907-164 is a digital microprocessor controller module. It serves as a part of the 505 and 505E microprocessor-based speed governor control units, specifically designed for operating steam turbines, turbogenerators, and turbine expander modules. Woodward 9907-164 can control the steam turbine by operating the single extraction and/or admission of the steam turbine, utilizing the segmented actuators of the steam turbine to drive the steam inlet valve. Field operators can configure it on-site and control and change the menu-driven software through the front operator control panel. Woodward 9907-164 plays a crucial role in ensuring the stable and efficient operation of these turbines in industrial settings.
2. Product Parameters
Parameter
Details
Input Voltage
+24 VDC at 1 A
Display
Two lines x 24 characters
Keyboard
30 multifunctional keyboard
Contact Inputs
16 (4 dedicated, 12 programmable)
Current Inputs
6 programmable, 4-20 mA
Slot Type
RS-232/RS-422 with Modbus protocol
Operating Temperature
–4 to +140 °F
Storage Temperature
-40 to +185 °F
Humidity Standard
20 and 55 °C, 95% humidity, 48 hours
Enclosure Type
IEC 60529, IP 56
Dimensions
14W x 11H x 4D (inches)
Weight
9.11 pounds
3. Advantages and Features
High Reliability: Having passed extensive field tests, Woodward 9907-164 can operate stably in harsh industrial environments. For example, in a steel plant where there are strong vibrations and electromagnetic interferences, it has maintained stable operation for over 3 years without significant failures, ensuring the continuous operation of the turbines.
Rich Functionality: It comes with standard functions such as critical speed avoidance, valve limiters, automatic start-up sequences, and trip first-out indicators. These functions enhance the safety and efficiency of turbine operation. For instance, the critical speed avoidance function can prevent the turbine from operating at speeds that may cause mechanical resonance, thus protecting the turbine components.
Flexible Configuration: With 12 programmable contact inputs out of 16 and 6 programmable current inputs, Woodward 9907-164 can be customized according to different user requirements. In a power generation project, users were able to program the inputs to meet the specific control needs of the steam turbine, improving the overall control accuracy.
User-friendly Operation: Equipped with a 30 multifunctional keyboard and a two-line, 24-character display, along with menu-driven software, it is convenient for field operators to configure. Even operators with limited technical knowledge can quickly master its operation, reducing the learning cost and improving work efficiency.
4. Application Areas and Application Cases
Application Areas: Widely applied in the power industry for steam turbine power generation systems, as well as in industries such as petrochemicals, metallurgy, etc., where steam turbines, turbogenerators, and turbine expanders are involved in the control scenarios.
Application Case: In a large-scale petrochemical plant, Woodward 9907-164 was used to control the steam turbines that drive various pumps and compressors. By precisely controlling the speed of the turbines through this module, the plant was able to optimize the operation of these equipment. The energy consumption was reduced by about 15%, and the production efficiency was increased by 20%. Moreover, due to its reliable performance, the maintenance frequency of the turbines was significantly reduced, saving a large amount of maintenance costs.
5. Comparison with Competitors
Compared with similar products in the market, Woodward 9907-164 has an edge in terms of functionality. It offers a more comprehensive set of standard functions, such as the unique critical speed avoidance and trip first-out indicator functions, which are not commonly found in other products. In terms of reliability, its excellent performance in harsh environments sets it apart. The flexible configuration capabilities also enable it to better meet the diverse needs of different users, while some other products may have more limited configuration options.
6. Selection Suggestions
Compatibility: Ensure that Woodward 9907-164 is compatible with existing steam turbines, actuators, and other related equipment in terms of electrical interfaces and communication protocols. Check whether the input and output signals match the requirements of the connected devices.
Installation Environment: Consider the available installation space and the environmental conditions, such as temperature, humidity, and vibration. Although it can operate in a wide temperature range, it is still necessary to ensure that the installation environment does not exceed its specified limits. If the installation site has strong vibrations, appropriate shock absorption measures should be taken.
Function Requirements: Based on the actual control needs, such as the need for precise multi-parameter control and specific protection functions, evaluate whether Woodward 9907-164 can meet these requirements. For example, if you need to control the turbine’s speed with high precision, make sure the module’s control accuracy can meet your needs.
Budget: Consider the product price, maintenance cost, and the potential benefits it can bring in combination with the project budget. Although Woodward 9907-164 may have a relatively higher initial cost, its long-term reliability and energy-saving effects can offset this cost to a certain extent.
7. Precautions
Installation: When installing, strictly follow the installation manual to ensure correct wiring and avoid short circuits or reverse connections. Pay attention to the vibration and electromagnetic interference at the installation location. If necessary, take shock absorption and shielding measures. Make sure to install it in a location that is convenient for operation and maintenance.
Operation: Regularly check the operation status of the module and look for any alarm messages or abnormal indicator lights. Avoid using it in environments that exceed the specified temperature, humidity, and other conditions. If any abnormalities are found, stop using it immediately and carry out troubleshooting.
Maintenance: Have professional personnel perform maintenance. When performing inspections and component replacements, ensure that the power is turned off first and take anti-static measures. Regularly clean the module to prevent dust and debris from affecting its performance.
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High Reliability: The CI520V1 is made of high-quality electronic components and advanced manufacturing processes. After strict quality inspections, its mean time between failures (MTBF) is over 50,000 hours, ensuring stable operation even in harsh industrial environments. In a steel manufacturing plant with high temperatures, strong vibrations, and electromagnetic interference, the CI520V1 has been running smoothly for more than 3 years without major malfunctions.
Easy Integration: The rich interface types of the CI520V1 allow it to be easily integrated with other devices and systems, significantly shortening the project implementation cycle. For example, in an automation factory upgrade project, through its Ethernet interface, the CI520V1 was able to quickly establish communication with the host computer system and other intelligent devices, achieving a seamless upgrade of the entire production line within a short time.
Powerful Functionality: It is equipped with a rich instruction set and high-speed data processing capabilities, which can meet various complex control requirements. It can simultaneously handle multiple control tasks, such as monitoring and controlling different production processes in a factory, adjusting parameters in real-time according to the feedback information, and ensuring the coordinated operation of the entire system.
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