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Woodward 8400-702 - User Manual

Woodward 8400-702
33 pages
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Product Manual 04176
(Revision G, 8/2015)
Original Instructions
ProAct™ II Electric Powered
Actuator and Driver
Installation and Operation Manual

Questions and Answers

  • V
    Victoria ChandlerJul 25, 2025
    Why Woodward 8400-702 Controller actuator drives opposite direction?
    • E
      Erika JonesJul 26, 2025
      The actuator might be driving in the opposite direction because the actuator drive wires and position feedback are connected with reverse polarity. To solve this, check the wiring to ensure it has the correct polarity.
  • V
    virginiaalvarezAug 2, 2025
    What to do if Woodward 8400-702 Controller actuator drives into max stop with a command to min fuel?
    • C
      Christopher CarrilloAug 2, 2025
      If the actuator drives into the max stop when a command to min fuel is applied, it could be due to incorrectly connected actuator drive or position feedback signals. Check the wiring for proper polarity of the actuator drive wires. Also, verify the polarity of the actuator position feedback input wiring.
  • A
    Andrea RiggsAug 9, 2025
    How to fix Woodward 8400-702 Controller actuator driving into min stop with mid fuel command?
    • J
      Julie JensenAug 9, 2025
      If the actuator drives into the minimum stop when a command to mid fuel is applied, it may be due to the position command signal not being received correctly. Check the wiring for proper polarity of the position command input leads. Also, ensure that the position command input has a good connection to the input signal by inspecting the wiring.
  • J
    Jeffrey SmithAug 17, 2025
    What to do if Woodward Controller actuator and control system do not respond?
    • J
      Jessica SparksAug 17, 2025
      If the actuator and control system are unresponsive with all voltage outputs at 0 V, the actuator and driver may not be receiving power. Check the wiring for proper polarity of the input power leads. Also, verify that the input power leads have a secure connection to the battery + or battery –.

Summary

General Safety and Operational Precautions

Prime Mover Safety Measures

Advises on overspeed shutdown devices and emergency shutdown preparedness.

Personal Protective Equipment (PPE)

Lists essential personal protective equipment for safe operation.

Electrostatic Discharge (ESD) Awareness

Handling Precautions for ESD Sensitivity

Details precautions to prevent damage to static-sensitive electronic components.

Chapter 2: Installation

Actuator Installation and Thermal Considerations

Covers actuator installation on the engine and thermal management of the unit.

Actuator Linkage and Fuel Control

Actuator Mounting Bracket

Electrical Connections and Wiring

Shielded Wiring Procedures

Provides detailed instructions for preparing and installing shielded wiring to prevent signal interference.

Power Supply Requirements

Correct Power Supply Connection

Explains how to correctly connect the power supply to the driver and actuator for optimal performance.

Position Feedback Calibration

Adjusting Feedback Gain and Offset

Guides on adjusting system position feedback gain and offset for accurate actuator positioning.

Actuator Travel Setup

Position Command Gain and Offset Adjustment

Describes adjusting position command gain and offset for correct actuator travel.

Chapter 4: Troubleshooting

Linkage and Actuator Stroke Issues

Discusses optimal actuator stroke usage and potential issues with linkage.

Chapter 5: Technical Specifications

Power Supply Specifications

Specifies voltage and current requirements for the ProAct II driver power supply.

System Wiring Guidelines

Outlines recommended wire gauge, type, and maximum line lengths for system wiring.

Input Signal Configurations

System Performance Metrics

Actuator Performance Specifications

Position Accuracy and Protection

Details position accuracy, unit-to-unit accuracy, and system protection features.

ProAct II Specifications Summary

Woodward 8400-702 Specifications

General IconGeneral
BrandWoodward
Model8400-702
CategoryController
LanguageEnglish

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