Woodward 8405-223 Electric Actuator Engine Control
Manufacturer: Woodward
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Part Number: 8405-809
Condition：New with Original Package
Product Type: Electric Actuators
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Country of Origin: GERMANY
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Woodward 8405-223 Electric Actuator
Configured for precise engine speed and fuel control in industrial engine speed regulation, the Woodward 8405-223 (8405-223 Electric Actuator and Driver) provides direct physical/electrical execution. This unit integrates a Limited Angle Torque actuator with digital driver electronics to eliminate external driver modules and hydraulic governor reliance. The hardware establishes direct rotary shaft positioning for throttle plates, butterfly valves, or fuel racks, maintaining consistent engine speed regulation during load transients.
Suffix Breakdown & Model Matrix
| Base Model | Voltage Rating | Communication | Enclosure/Mount |
|---|---|---|---|
| 8405-223 | 24-250 V AC/DC | Modbus RTU | Universal Skid / Panel Mount |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8405-223 |
| Brand | Woodward |
| Origin | USA |
| Weight | 600 g |
| Dimensions | Standard Industrial Skid / Panel Dimensions |
| Operating Temp | -40 deg C to +85 deg C |
| Power Consumption | Universal 24-250 V AC/DC (50 / 60 Hz) |
| Actuator Technology | Limited Angle Torque Electric Actuator |
| Angular Travel Range | 75 deg Rotary Motion |
| Serial Communication | Modbus RTU Protocol |
| Auxiliary Outputs | Configurable SPDT Relay Outputs |
| Visual Diagnostics | Integrated Digital Status Display |
| Protection Rating | Overcurrent and Short-Circuit Protection |
Actuator Loop Feedback Response
The internal driver circuitry continuously executes active thermal heat sink dissipation profiles while regulating energy delivered to the Limited Angle Torque coil assembly. Direct closed-loop positioning eliminates mechanical backlash associated with intermediate gear trains, which optimizes the actuator loop feedback response time during high-frequency throttle changes. Internal current sensing circuits continuously evaluate electromagnetic coil demand, automatically adjusting pulse-width modulation thresholds to avoid thermal saturation while preserving dynamic holding torque across the entire 75 deg rotary stroke.
Frequently Asked Questions
Q: What power input configurations does the internal digital driver accept?
A: The universal power supply stages accept input line voltages ranging from 24 V AC/DC up to 250 V AC/DC at frequencies of 50 / 60 Hz without external transformer taps.
Q: How does the actuator convey fault state diagnostics to external PLC platforms?
A: Real-time telemetry, operational parameters, and trip events broadcast over the integrated Modbus RTU serial interface, supplemented by local status indications on the digital panel display and configurable SPDT relay outputs.
Q: What electrical protection measures shield the internal digital electronics?
A: Integrated solid-state monitoring circuits provide continuous overcurrent and short-circuit protection, isolating the internal drive bridge from external supply anomalies and coil faults.
Field Installation Guidelines
Mounting technicians must secure the unit to a rigid panel surface or engine skid structure to minimize vibration-induced stress on internal components. Ensure mechanical linkage align perfectly with the output shaft to prevent side-loading, binding, or axial thrust forces from exceeding mechanical limits. Connect the main power supply and signal wiring using twisted shielded pairs for serial communication lines, terminating the cable shield at a single ground bus point to prevent earth loop noise. Maintain at least 5 engagement threads on NPT cable glands to maintain structural ingress integrity. Always verify that line voltages match specified supply ratings before applying power to prevent driver damage.