Description
The Woodward 8256-087 is a sophisticated Electrically Powered Governor (EPG) actuator, commonly referred to as the “524” model. This unit distinguishes itself through its sealed design and integrated position feedback capabilities, providing enhanced monitoring accuracy for critical engine control loops. Engineered for high reliability, this Woodward 8256-087 variant features a counter-clockwise (CCW) output and offers superior installation flexibility, as it can be mounted in any orientation to suit compact engine compartments.
Product Specifications
- Model Designation: 524 Series (Sealed Position Feedback)
- Rotation Direction: Counter-Clockwise (CCW)
- Mounting Flexibility: Universal (Any orientation)
- Wiring Limitations: 150 ft (12 AWG) / 70 ft (14 AWG)
- Sealing: Industrial-grade sealed enclosure
- Compatibility: Woodward EPG series control systems
- Operating Temperature: -40 °C to +95 °C
- Dimensions: 170 mm × 135 mm × 125 mm (approximate)
- Weight: 3.3 kg
- Country of Origin: United States
Frequently Asked Questions
💡 What are the advantages of the “Sealed Position Feedback” design? The integrated position feedback allows the Woodward governor controller to “know” the exact physical location of the actuator shaft at all times. This closed-loop data increases transient response accuracy and provides advanced diagnostic capabilities compared to standard actuators.
🛠 Why are there strict limitations on wire length and gauge? Because the actuator is a high-current device, voltage drop across the wiring is a critical factor. Exceeding the 150 ft (12 AWG) or 70 ft (14 AWG) limits causes a significant drop in power delivery, which results in sluggish actuator response, instability in engine RPM, and potential overheating of the internal circuitry.
⚡ Does the “universal mounting” feature affect the actuator’s performance? No, the actuator is internally balanced to function regardless of orientation. However, always ensure that the external linkage connected to the shaft is properly aligned to avoid side-loading the shaft bearings, which could lead to premature mechanical wear.
🔋 What should I keep in mind during installation? Always use the recommended wire gauge for your specific cable run length to maintain optimal performance. Given that this is a sealed unit, ensure that the electrical connector is properly seated and the conduit entry is secured to maintain the integrity of the seal against moisture and dust.
Recommended Woodward Actuator Series Models
- 8256-010 (Clockwise Rotation)
- 8256-011 (Counter-Clockwise Rotation)
- 8256-016 (Standard EPG Actuator)
- 8256-032 (Load-Sharing Actuator)
- 8256-080 (CCW with Spring Return)
- 8270-1002
- 8270-1003
- 8270-1004
- 8290-001
- 8290-002
