Woodward 8406-120 Electronic Governor for Diesel & Gas Engines
Woodward 8406-120 Electronic Governor for Diesel & Gas Engines
Manufacturer: Woodward
Product No.: 8406-120
Condition:1000 in stock
Product Type: Electronic Governor
Product Origin: 8406120000001
Payment: T/T, Western Union
Weight: 4500g
Shipping port: Xiamen
Warranty: 12 months
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Woodward 8406-120 Electronic Governor – Precision Speed Control for Critical Applications
The Woodward 8406-120 electronic governor represents a proven solution for precise engine speed regulation in demanding industrial environments. Engineered for both diesel and gas engines, this microprocessor-based controller ensures stable operation across power generation, marine propulsion, and industrial drive systems.
Technical Specifications
- Control Modes: Isochronous (0% droop) and adjustable droop (0-10%)
- Speed Range: 500-3000 RPM (field configurable)
- Input Voltage: 18-32 VDC nominal (12-36 VDC operating range)
- Output Signal: PWM or analog 0-200 mA for actuator control
- Speed Sensing: Magnetic pickup (MPU) input, 50-20,000 Hz
- Accuracy: ±0.25% of rated speed in isochronous mode
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Protection Rating: IP54 (NEMA 12 equivalent)
- Dimensions: 178 mm × 127 mm × 89 mm (7.0" × 5.0" × 3.5")
- Weight: 4.5 kg (9.9 lbs)
Application Solutions
Power Generation: Maintains grid-quality frequency stability in standby and prime power gensets from 50 kW to 2 MW. Load-sharing capability enables parallel operation of multiple generator sets with precise load distribution.
Marine Propulsion: Delivers smooth throttle response and stable idle control for auxiliary engines, thruster drives, and emergency generator systems aboard commercial vessels and offshore platforms.
Industrial Drives: Controls pump drives, compressor units, and mechanical drive engines where constant speed operation is critical for process efficiency and equipment protection.
Key Performance Features
The 8406-120 incorporates advanced PID control algorithms that automatically compensate for load transients, fuel quality variations, and ambient condition changes. Adjustable gain and stability parameters allow field optimization for specific engine characteristics without external tools.
Built-in actuator diagnostics monitor output current and detect open circuits, short circuits, or actuator binding conditions. Front-panel LED indicators provide instant status feedback for speed reference, control mode, and fault conditions.
Installation & Integration
Standard DIN-rail or panel mounting options simplify retrofit installations. Screw-terminal connections accommodate 14-22 AWG wire for reliable field wiring. The governor interfaces directly with Woodward actuators (EG-A, EG-3P, PSG series) and most third-party proportional actuators rated 0-200 mA.
Remote speed adjustment via 0-5 VDC or 4-20 mA analog input enables integration with plant control systems, SCADA networks, or manual potentiometer control stations.
Common Questions
Q: Can the 8406-120 control both diesel and natural gas engines?
A: Yes, the governor is fuel-agnostic and controls engine speed through actuator positioning regardless of fuel type. Configuration parameters accommodate different engine response characteristics.
Q: What actuator types are compatible?
A: The 8406-120 drives proportional actuators with 0-200 mA coil resistance between 20-200 ohms. Compatible models include Woodward EG-A, EG-3P, PSG, and equivalent third-party units.
Q: Does it support load-sharing between multiple engines?
A: Yes, when configured in droop mode (typically 3-5%), multiple 8406-120 governors automatically share load proportionally without communication wiring between units.
Q: What maintenance is required?
A: The solid-state design requires no routine maintenance. Periodic inspection of wiring connections and actuator linkage is recommended during scheduled engine service intervals.
Warranty & Support
Every Woodward 8406-120 governor includes a 12-month warranty covering manufacturing defects and component failures under normal operating conditions. Technical support and application engineering assistance are available to ensure optimal system performance.
Related Products
Explore complementary control solutions:
- Emerson EPRO ES815S Servo Drive – High-precision servo control for automated systems
- GE IC800SSI228RD2 Servo Motor Controller – Advanced motion control for industrial applications
- Allen-Bradley 150-F25NBD SMC Flex Smart Motor Controller – Intelligent motor protection and control
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191
Product Description
Woodward 8406-120 Electronic Governor – Precision Speed Control for Critical Applications
The Woodward 8406-120 electronic governor represents a proven solution for precise engine speed regulation in demanding industrial environments. Engineered for both diesel and gas engines, this microprocessor-based controller ensures stable operation across power generation, marine propulsion, and industrial drive systems.
Technical Specifications
- Control Modes: Isochronous (0% droop) and adjustable droop (0-10%)
- Speed Range: 500-3000 RPM (field configurable)
- Input Voltage: 18-32 VDC nominal (12-36 VDC operating range)
- Output Signal: PWM or analog 0-200 mA for actuator control
- Speed Sensing: Magnetic pickup (MPU) input, 50-20,000 Hz
- Accuracy: ±0.25% of rated speed in isochronous mode
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Protection Rating: IP54 (NEMA 12 equivalent)
- Dimensions: 178 mm × 127 mm × 89 mm (7.0" × 5.0" × 3.5")
- Weight: 4.5 kg (9.9 lbs)
Application Solutions
Power Generation: Maintains grid-quality frequency stability in standby and prime power gensets from 50 kW to 2 MW. Load-sharing capability enables parallel operation of multiple generator sets with precise load distribution.
Marine Propulsion: Delivers smooth throttle response and stable idle control for auxiliary engines, thruster drives, and emergency generator systems aboard commercial vessels and offshore platforms.
Industrial Drives: Controls pump drives, compressor units, and mechanical drive engines where constant speed operation is critical for process efficiency and equipment protection.
Key Performance Features
The 8406-120 incorporates advanced PID control algorithms that automatically compensate for load transients, fuel quality variations, and ambient condition changes. Adjustable gain and stability parameters allow field optimization for specific engine characteristics without external tools.
Built-in actuator diagnostics monitor output current and detect open circuits, short circuits, or actuator binding conditions. Front-panel LED indicators provide instant status feedback for speed reference, control mode, and fault conditions.
Installation & Integration
Standard DIN-rail or panel mounting options simplify retrofit installations. Screw-terminal connections accommodate 14-22 AWG wire for reliable field wiring. The governor interfaces directly with Woodward actuators (EG-A, EG-3P, PSG series) and most third-party proportional actuators rated 0-200 mA.
Remote speed adjustment via 0-5 VDC or 4-20 mA analog input enables integration with plant control systems, SCADA networks, or manual potentiometer control stations.
Common Questions
Q: Can the 8406-120 control both diesel and natural gas engines?
A: Yes, the governor is fuel-agnostic and controls engine speed through actuator positioning regardless of fuel type. Configuration parameters accommodate different engine response characteristics.
Q: What actuator types are compatible?
A: The 8406-120 drives proportional actuators with 0-200 mA coil resistance between 20-200 ohms. Compatible models include Woodward EG-A, EG-3P, PSG, and equivalent third-party units.
Q: Does it support load-sharing between multiple engines?
A: Yes, when configured in droop mode (typically 3-5%), multiple 8406-120 governors automatically share load proportionally without communication wiring between units.
Q: What maintenance is required?
A: The solid-state design requires no routine maintenance. Periodic inspection of wiring connections and actuator linkage is recommended during scheduled engine service intervals.
Warranty & Support
Every Woodward 8406-120 governor includes a 12-month warranty covering manufacturing defects and component failures under normal operating conditions. Technical support and application engineering assistance are available to ensure optimal system performance.
Related Products
Explore complementary control solutions:
- Emerson EPRO ES815S Servo Drive – High-precision servo control for automated systems
- GE IC800SSI228RD2 Servo Motor Controller – Advanced motion control for industrial applications
- Allen-Bradley 150-F25NBD SMC Flex Smart Motor Controller – Intelligent motor protection and control
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191