Digital guide
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Woodward 9907-551
Product Name: Woodward 2301A Reverse-Acting Low-Voltage Speed & Load Controller
Product Introduction: A reverse-acting version of the 2301A series. The drive output characteristic is reversed to match reverse-acting fuel actuators. Other speed control and load sharing functions remain consistent with standard models.
Detailed content
Technical Specifications:
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Power Supply: 18–40 VDC
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Speed Sensing: Magnetic pickup input
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Drive Output: Reverse-acting proportional drive output
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Operating Temperature: -40°C to +85°C
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Enclosure Rating: IP20
Functional Features:
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Reverse output drive to match reverse-acting actuators
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Speed closed-loop control, isochronous/droop mode, multi-unit load sharing
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Hardware fault self-test alarm output
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External potentiometer for parameter setting
Application Scenarios: Diesel and gas generator sets equipped with reverse-acting fuel actuators.
Material Composition: Sheet metal enclosure, single PCB, flame-retardant terminals.
Structural Features: Cabinet-embedded single-board; no local display panel.
Working Principle: The speed closed-loop logic is consistent with standard models, but the output drive signal polarity is reversed to match the reverse-acting actuator’s action logic.
Installation Requirements:
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Install inside a control cabinet, away from vibration and interference sources
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Speed sensor uses shielded twisted-pair cable with single-point grounding
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Confirm that the actuator action direction matches the controller output; perform a direction test before energizing
Usage Precautions:
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Must confirm that the actuator is a reverse-acting model; incorrect use will cause runaway and overspeed risk
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The system must be equipped with an independent overspeed protection device
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Power polarity must never be reversed
