Description
🚀 Designed for precise engine and turbine management, the Woodward 9900-430 is part of the trusted 2301A Electronic Load Sharing and Speed Control series. It provides precise speed control and proportional active power load distribution for prime movers operating individually or in parallel configurations.
Technical Specifications & Datasheet
⚙️ Dimensions: 221 mm x 155 mm x 64 mm (Standard 2301A enclosure format)
⚖️ Weight: Approx. 1.8 kg (4 lbs)
🌍 Country of Origin: United States
⚡ Power Consumption: 15 W nominal
🔌 Operating Voltage: Standard low-voltage / high-voltage 2301A system compatibility (configurable variants)
🌡️ Operating Temperature: -40°C to +85°C (-40°F to +185°F)
🛡️ Enclosure Rating: IP20 chassis-mount with metallic product backplane
⏱️ Actuator Compensation: Time constant compatibility of 0–500 ms
🔄 Speed Range: Rated speed up to 11,450 Hz derived via MPU frequency input
🔌 Load Gain: 6 VDC maximum at 5 A CT current
Operating Procedures & Usage Methods
🛠️ Securely mount the module onto its metallic backplane inside a protective industrial panel or control cabinet, ensuring adequate clearance for terminal connections and natural convection cooling.
🔧 Connect the magnetic pickup (MPU) speed sensor, current transformers (using open delta connections on terminals 1, 2, and 3), actuator lines, and power supply strictly according to the front-label diagram.
📋 Adjust the front-panel potentiometers (such as gain, reset, speed trim, and load droop/isochronous settings) carefully during initial calibration to match engine dynamics and synchronization parameters.
Power Sequencing Guidelines
🔌 Startup Sequence: Energize the input power source to initialize internal control circuits, verify that MPU speed signals stabilize within range, and confirm zero fault codes before enabling fuel or steam delivery to the prime mover.
🛑 Shutdown Sequence: Disable the actuator control loop or cut fuel/steam supply to bring the prime mover to a complete, safe stop prior to isolating the main system power feed.
Product Usage Instructions
📖 Use the 4-pole mini-switch on the unit to configure the designated speed range corresponding directly to your MPU frequency and engine RPM specifications.
📖 Operate the unit in isochronous mode when coordinating constant speed across multiple paralleled engines, or switch to droop mode for single-engine speed governing or isolated operation.
Frequently Asked Questions
💡 Q: What is the primary function of the 9900-430 module?
A: It functions as an electronic load sharing and speed control unit designed to maintain stable engine speed and distribute active electrical load evenly across parallel generators.
💡 Q: How does the unit handle a lost speed signal?
A: If a speed signal failure occurs, integrated safety features allow control output override or shut off via designated open contacts to protect the equipment.
💡 Q: Can this control handle single or tandem actuators?
A: Yes, it is engineered to support both single and tandem actuator configurations depending on the application requirements.
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