Overview
The Woodward 2301A control series (9905/9907) is designed to manage load sharing and speed regulation of generators powered by diesel or gasoline engines, as well as steam or gas turbines. These power sources, referred to as "prime movers" in the manual, are efficiently controlled by the 2301A. The unit is encased in a durable sheet-metal chassis, housing a single printed circuit board (PCB). For ease of adjustment, all potentiometers are conveniently located on the front of the chassis. The 2301A offers flexible control, operating in either isochronous or droop mode.Specifications
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Power Supply Rating:
- 90–150 Vdc or 85–132 Vac for High Voltage models
- 20–40 Vdc for Low Voltage models
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Power Consumption: ≤ 15 W nominal
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Inputs:
- Load Sensing: 90–240 Vac 3-phase, 45–66 Hz, 3-phase current transformer input
- Speed Sensor Input Impedance: 100–300 Ω
- Speed Sensor Magnetic Pickup: 1.0 Vac minimum to 30 Vac maximum
- Speed Trim: 0–100 Ω for 0 to 10% speed change
- Speed Setting: Terminals 23–24 jumpered, internally adjustable 100 Ω potentiometer allows external 0–10% speed trim
- Idle Speed Select: External switch, open terminals 19 to 16
- Droop: External switch, open terminals 14 to 16
- Synchronizer: ±5 Vdc for speed change with Woodward SPMA synchronizer
- Load Sharing: 0–6 Vdc
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Outputs:
- Actuator: 7.5 Vdc max for 0 to 214 mA with 35 Ω coil
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Adjustments:
- Rated Speed: 11 450 Hz
- Acceleration Ramp (±Idle to Rated): 0–10 s, switch-activated, close terminals 19 to 16
- Actuator Compensation: Time constant compatibility 0–500 ms
- Low Idle Speed: 55% of rated
- Load Gain: 6 Vdc maximum at 5 A CT current
- Droop: 0 to 10%
- Speed Control Range: Switch selectable: 500–1500 Hz, 1000–3000 Hz, 2000–6000 Hz (standard), 4000–12 000 Hz
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Operating Temperature: –40 to +85 °C (–40 to +185 °F)
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Load Sharing: ±5% of rated load with speed setting matched
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Vibration: 4 Gs, 5 to 500 Hz
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Shock: 60 Gs
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Weight: Approximately 1.8 kg (4 lb)
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Finish: Gloss powder
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