I. Product Overview
Model: 9907-018, belongs to the Woodward 2301A classic speed control series, low-voltage DC type, forward output (Forward-Acting), unit speed + active load equalization integrated controller, suitable for diesel/gasoline generators, small steam/turbogenerator, multi-unit grid-connected load distribution. Original factory imported spare parts from the United States (for the same series, the 9907-014 you previously searched for was the reverse model).
Key distinction: No built-in deceleration ramp function, single actuator 0-200mA drive output.

Core Electrical Parameters Table
Parameter Item    Specification
Power Supply    DC 20～40VDC (nominal 24VDC, low-voltage models)
Overall Power Consumption ≤ 15W
Drive Output    0～200mA forward current output, compatible with all Woodward actuators in the EG/PB/EGB/TM series
Frequency Adaptation    50/60Hz universal, magnetic signal input for speed probe
CT Current Sampling    CT secondary 1A/5A programmable, used for active load collection
Operating Temperature    -40℃～+70℃
Dimensions    273×181×64mm; net weight ≈ 1.76kg, cabinet rail embedded installation
Certifications    CE, CSA North American explosion-proof area certification

Core Functions
One-click Switching of Dual Control Modes
Isoch No-Difference Mode: Single machine isolated grid operation, constant speed;
Droop Differential Slope Mode: Multi-machine grid connection, automatic active load equalization (twisted-pair load sharing bus networking).
Remote Speed Setting: Supports 4~20mA/1~5VDC external signal remote setting of speed/load;
Built-in load collection circuitry, no need for external load transducer, through CT to collect active load of the unit to achieve parallel equalization;
Panel Adjustable Potentiometer: All parameters such as speed, gain, slope coefficient, start-stop oil limit are all pre-adjustable, no need to open the cover for debugging.

Applicable Equipment
Diesel generator sets, coalbed methane / associated gas gas generator sets, small heat recovery steam turbines, self-owned power stations of refineries for multi-machine parallel retrofit replacement.
V. 2301A Model Distinction of the Same Type
9907-018: Forward output, 24VDC, no deceleration slope (this model)
9907-014: Reverse output model (commonly used model)
9907-020: Optional version with deceleration slope