Product Short Description
Product Name
2301A Low-Voltage, Reverse-Acting Load Sharing and Speed Control Unit
Product Introduction
The Woodward 9907-019 is a low-voltage, reverse-acting electronic load sharing and speed control unit belonging to the 2301A series. It operates from a 20–40 V DC supply and drives a single actuator with reverse action (actuator moves toward fuel decrease on speed increase). It is designed for prime movers where a reverse-acting governor is required, with no speed ramp feature.
Description
Technical Specifications
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Supply Voltage: 20–40 V DC
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Action: Reverse acting (single actuator)
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Actuator Current: 0–200 mA
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Speed Ramp: Not provided
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Dimensions: 387.35 mm × 180.975 mm × 63.5 mm
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Weight: 1.758 kg
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Operating Temperature: −40 °C to +85 °C
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Storage Temperature: −40 °C to +70 °C
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Standard: CSA certified; CE compliant
Functional Features
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Reverse-acting control: on speed loss, actuator positions to start-fuel level.
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Single-actuator control without speed ramp.
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Precision load sharing and speed control.
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Sturdy metal chassis for harsh industrial environments.
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Wide operating temperature range.
Application Scenarios
Industrial prime movers, including turbines and engines, where reverse-acting governor action is required and paralleling with other generators is needed under the 2301A load sharing scheme.
Working Principle
The unit receives speed signal from a magnetic pickup, compares to the setpoint, and drives a single reverse-acting actuator. On speed increase, actuator decreases fuel; on speed decrease, actuator increases fuel. For load sharing, it communicates with other 2301A units via the load-sharing line.
Installation Requirements
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Install in accordance with the Woodward 9905/9907 series manual.
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Provide 20–40 V DC power supply.
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Connect speed sensor and actuator wiring using shielded cables.
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Connect load-sharing and droop contact lines as per plant wiring diagram.
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Set speed range and calibrate start-fuel potentiometer.
Usage Precautions
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On speed signal loss, verify actuator positions at start-fuel level.
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Adjust start-fuel potentiometer counterclockwise to disable start-fuel limit if needed.
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Observe ESD precautions during handling.
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Do not operate outside −40 °C to +85 °C.
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Follow commissioning procedure in the 2301A manual.
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