Description
Technical Parameters WOODWARD 8405-026
| Parameter Item | Parameter Value |
|---|---|
| Module Type | Fuel Actuator Driver Module |
| Input Signal | 0-10V DC analog control signal, 4-20mA current signal |
| Output Signal | 0-5A DC drive current, PWM pulse width modulation signal |
| Control Accuracy | ±1% of output current |
| Power Supply Voltage | 24V DC ±10% |
| Power Consumption | ≤10W |
| Operating Temperature | -40℃~+85℃ |
| Protection Level | IP20 (cabinet installation) |
| Vibration Resistance | 5-2000Hz, 2g acceleration |
| Compatible Actuators | Woodward 2301 series, 8200 series fuel actuators |
| Protection Functions | Overcurrent protection, overheating protection, short-circuit protection |
Product Advantages and Features WOODWARD 8405-026
- High-precision current drive, precise fuel control
WOODWARD 8405-026 provides stable 0-5A DC drive current with control accuracy of ±1% of the output current, which can accurately drive the fuel actuator to adjust the fuel supply according to the control signal from the speed regulator. Compared with ordinary driver modules, its output current fluctuation is less than 0.05A, ensuring the engine speed is stable and avoiding speed deviation caused by fuel supply changes.
- Dual input signal support, flexible system matching
The module supports both 0-10V voltage signal and 4-20mA current signal input, which can be seamlessly connected with most speed control modules and DCS systems on the market. It does not require additional signal conversion devices, reducing the complexity of system integration and improving the compatibility of the whole control system.
- Multi-layer protection mechanism, safe and reliable operation
WOODWARD 8405-026 is equipped with a complete set of protection functions including overcurrent, overheating and short-circuit protection. When the actuator is short-circuited or the module temperature exceeds the threshold, it will automatically cut off the output current to protect the module and the actuator from damage. The mean time between failures (MTBF) of the module exceeds 60,000 hours, which is suitable for long-term continuous operation scenarios.
- Compact structure design, space-saving installation
WOODWARD 8405-026 adopts a compact integrated design with small volume and light weight, which can be directly installed in the control cabinet of the generator set or engine. It does not occupy extra installation space, and is especially suitable for equipment with limited cabinet space such as marine generator sets and mobile power stations.
Application Cases WOODWARD 8405-026
- Diesel generator set fuel control for construction sites
In a construction site mobile power station project, WOODWARD 8405-026 is matched with Woodward 2301 speed control module and 8200 fuel actuator to control the fuel supply of the diesel generator set. It can quickly adjust the fuel supply according to the load changes of the construction equipment, keeping the generator speed stable at the rated value, and ensuring the normal operation of high-power equipment such as cranes and concrete mixers.
- Marine main engine fuel regulation system
In a bulk carrier main engine propulsion system project, the module drives the fuel actuator to realize precise fuel control of the marine diesel engine. Its excellent vibration resistance and corrosion resistance adapt to the harsh marine environment with high humidity and salt spray, and the fuel supply adjustment response time is less than 100ms, which improves the navigation stability and fuel efficiency of the ship.
- Oil field associated gas turbine power generation control
In an oil field associated gas power generation project, WOODWARD 8405-026 is used in the fuel control system of the gas turbine. It adjusts the fuel supply according to the gas pressure and power generation load changes, realizing the efficient utilization of associated gas. The module’s overcurrent protection function effectively avoids the damage of the actuator caused by the unstable gas pressure, ensuring the continuous operation of the power generation system.
Competitor Comparison
| Feature | WOODWARD 8405-026 | Siemens 6DR5010 | DEIF FCM-1 |
|---|---|---|---|
| Control Accuracy | ±1% output current | ±2% output current | ±1.5% output current |
| Input Signal Type | 0-10V/4-20mA | 4-20mA | 0-10V |
| Protection Functions | Overcurrent/overheating/short-circuit | Overcurrent/short-circuit | Overcurrent protection |
| Operating Temperature | -40℃~+85℃ | -20℃~+60℃ | -30℃~+70℃ |
| Compatible Actuators | Woodward full series actuators | Siemens Sipart series | DEIF dedicated actuators |
Selection Suggestions
- For projects using Woodward speed control modules and fuel actuators, WOODWARD 8405-026 is preferred, as it can achieve seamless matching and optimal control effect.
- If the system requires dual input signal support and multi-layer protection functions, this module is a better choice than single-signal input driver modules.
- For equipment with limited cabinet space such as mobile power stations and marine equipment, the compact design of the module can effectively save installation space.
Precautions
- During installation, ensure that the module wiring is correct, and distinguish the input signal terminal and output drive terminal to avoid reverse wiring that may damage the module.
- When matching with the actuator, confirm that the actuator’s rated current is within the 0-5A output range of the module to prevent overload operation.
- Regularly check the module’s operating temperature and output current to ensure that there is no overheating or current fluctuation, and clean the dust in the control cabinet in time to ensure good heat dissipation.
- During maintenance, power off the module first, and use original Woodward accessories for replacement to avoid compatibility problems affecting the control effect.
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