9905-797 - Digital Synchronizer Load Control Module

9905-797 - Digital Synchronizer Load Control Module 9905-797 - Digital Synchronizer Load Control Module

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Part Number: 9905-797
Manufacturer: Woodward
Product type: Digital Synchronizer Load Control Module
Number of analog inputs: 2
Number of Channels: 2
Input Voltage: 24 Vdc
Maximum Operating Current: 12 V
Operating Temperature: -40°C to +85°C
Signal Input Impedance: 33K Ohms
Display: 24-character LEDs
Power Supply Transient Protection: 900 Vdc
Availability: In Stock
Weight: 2 lbs
Country of Manufacture: United States (USA)


9905-797 is a Digital Synchronizer Load Control Module manufactured and designed by Woodward as part of the 9900 Series used in Turbine Control Systems. A Digital Synchronizer Load Control Module is a device or system designed to manage and control the synchronization of multiple digital systems or loads. It ensures that the voltage, frequency, and phase angle of the generator match those of the grid, which prevents damage to the equipment and ensures a stable power supply. A load control module (LCM) regulates the load on a generator to ensure that it operates within its rated capacity. It monitors the load on the generator and adjusts the output of the generator to maintain a constant load. It also protects the generator from overloading and overheating by automatically disconnecting the load in case of a fault.


Digital Technology: The use of the term Digital implies that the synchronizer module utilizes digital technology for its operation. This could involve microcontrollers, digital signal processors, or other digital components.

Synchronization: Synchronization is crucial in power systems where multiple generators need to work together to supply electricity. The synchronizer ensures that the frequency, phase, and voltage levels of different sources match before they are connected to the power grid.

Load Control: Besides synchronization, the module may also have features related to load control. This could involve managing the distribution of loads among different generators to optimize their efficiency and prevent overloading.

Automation: Digital Synchronizer Load Control Modules often come with automation capabilities, allowing them to perform their functions without constant manual intervention. This is particularly important in large-scale power systems where rapid and precise adjustments are necessary.

Monitoring and Protection: These modules may include monitoring functions to keep track of the health and performance of the generators or loads. Additionally, they might incorporate protection mechanisms to prevent damage in case of abnormal conditions.

Communication: In modern power systems, communication capabilities are essential. The synchronizer module may be able to communicate with other control systems, providing information and receiving commands to ensure coordinated operation.

Integration: Integration with other control and monitoring systems within a power plant or grid is common. This facilitates a holistic approach to managing the entire power generation and distribution system.

WOC has the largest stock of Woodward 9900 series Turbine Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


What is the requirement for grounding the MicroNet chassis to the mounting plate?

To properly ground the chassis to the mounting plate, all MicroNet chassis mounting screws (8-32 M4) should be installed.

What is the recommended number of electrical connections between mounting plates and the structural frame?

Electrical connections must be made between the mounting plates and the structural frame. A minimum of four spots (four corners) is required, but six spots (four corners + two mid-points) are preferred.

How should the structural frame and cover panels be electrically connected?

The structural frame and cover panels must be electrically connected. A minimum of one place is required, and two places (placed on opposite sides) are preferred.