Description
🚀 Engineered for precise industrial engine and turbine management, the Woodward 9905-132 is a forward-acting standard speed controller within the trusted 2301A series. It provides dependable prime mover speed regulation and load control functionality for power generation setups operating individually or across parallel electrical buses.
Technical Specifications & Datasheet
⚙️ Dimensions: 221 mm x 155 mm x 64 mm (Standard 2301A sheet-metal enclosure format)
⚖️ Weight: Approximately < 1.85 kg (< 4.1 lbs)
🌍 Country of Origin: United States
⚡ Power Consumption: 15 W nominal
🔌 Operating Voltage: High-voltage model range (88–131 VAC / 90–150 VDC, 45 to 440 Hz)
🌡️ Operating Temperature: -40°C to +85°C (-40°F to +185°F)
🛡️ Enclosure Rating: IP20 chassis-mount with metallic product backplane
⏱️ Control Action: Forward-acting output configuration
🔄 Speed Range: Switch-selectable ranges up to 11,450 Hz rated speed derived via MPU frequency input
Operating Procedures & Usage Methods
🛠️ Securely mount the module onto its metallic backplane inside a protective industrial control panel or cabinet, ensuring proper vertical clearance for terminal connections and natural convection cooling.
🔧 Connect the magnetic pickup (MPU) speed sensor, current transformers, actuator lines, and high-voltage power supply strictly according to the terminal wiring diagram on the unit housing.
📋 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 high-voltage power feed 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 lap-sync 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 high-voltage system power feed.
Product Usage Instructions
📖 Utilize the forward-acting output configuration to ensure that an increase in the internal control signal correctly drives a corresponding increase in fuel valve or actuator position.
📖 Select isochronous mode when coordinating constant frequency across multiple paralleled engines, or switch to droop mode for single-engine speed governing and isolated electrical generation.
Frequently Asked Questions
💡 Q: What are the electrical power ratings for the 9905-132 model?
A: It is a high-voltage unit designed to operate on power feeds ranging from 88 to 131 VAC or 90 to 150 VDC.
💡 Q: Is this model forward-acting or reverse-acting?
A: It features a forward-acting control design where an increase in output signal increases actuator fueling.
💡 Q: What is the primary function of this controller?
A: It acts as a standard speed and load control device to manage prime mover speed parameters and support parallel generator synchronization.
Recommended Woodward Series & Industrial Models
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