Woodward 9290-185
Product Name: Electronic Powered Governor (EPG)
Product Introduction: A compact, self-contained electronic governor designed for small to medium-sized diesel and gas engines. Integrates speed sensing, PID control, and actuator drive circuitry into a single unit. Provides precise speed regulation for generator sets, pumps, and compressors, with adjustable parameters for dynamic response and stability.
Detailed content
Technical Specifications:
- Power Supply: 24 VDC (18–32 VDC range)
- Speed Signal Input: Magnetic pickup (MPU), 1.5–30 Vrms, 5–6000 Hz
- Drive Output: 0–200 mA proportional current for fuel actuator
- Speed Regulation Range: 600–3000 RPM (adjustable)
- Steady-State Regulation: ≤±0.2%
- Operating Temperature: -40 °C to +75 °C
- Protection Grade: IP20
- Mounting: Panel or DIN rail mount
Functional Features:
- Digital PID control with adjustable gain, stability, and droop
- Built-in overspeed, undervoltage, and reverse polarity protection
- Isochronous and droop speed control modes
- On-site adjustable potentiometers for speed, gain, and stability
- Compact, rugged design for engine compartment mounting
- Low maintenance with no mechanical wearing parts
Application Scenarios:
- Small-bore diesel and gas generator sets
- Agricultural irrigation and industrial pump drives
- Construction machinery prime movers
- Remote off-grid power units
- Gas engine-driven compressors and blowers












