Woodward | 9907-014 | 2301A Speed Control

Description

The model 9907-014 is a specialized electronic speed control unit from Woodward’s 2301A series. Engineered primarily for prime mover speed governing without active inter-unit load sharing, this model features a specialized magnetic pickup input configuration supporting a cranking speed signal starting from 1.0 V up to a maximum of 30 Vrms. It ensures reliable speed regulation during startup, acceleration, and steady-state operation for industrial engines and turbines.

📊 Technical Datasheet Parameters

⚙️ Operating Standards & Installation Methods

• Handling Precautions: Observe standard electrostatic discharge (ESD) safeguards when handling the control unit. Ensure all external power and magnetic pickup lines are completely isolated before mounting or wiring.
• Mounting Integration: Secure the controller housing firmly onto a vibration-free industrial control cabinet backplate, ensuring adequate clearance around the unit for natural convection cooling and clean cable routing.
• Wiring Verification: Double-check all terminal screw connections for the magnetic pickup input (verifying signal amplitude stays within the 1.0 V to 30 Vrms cranking window), DC power supply lines, and actuator control outputs.

🔌 Strict Startup and Shutdown Sequence

• Pre-Power Inspection: Inspect all external wiring terminations, verify magnetic pickup air gap and signal strength, and confirm that speed reference settings are properly established before energizing.
• Startup Sequence:
  1. Energize the DC power supply inputs feeding the controller.
  2. Verify that internal supervisory circuits and status indicators show normal operational readiness.
  3. Initiate the prime mover cranking cycle, ensuring the magnetic pickup provides a stable signal between 1.0 V and 30 Vrms.
  4. Allow speed to accelerate smoothly to the governing setpoint.
• Shutdown Sequence:
  1. Initiate the controlled shutdown procedure for the prime mover.
  2. Allow the engine or turbine to decelerate completely to a mechanical standstill.
  3. Disconnect power feeds to the controller only after rotation has ceased.

💡 Product Usage Guide & Maintenance Best Practices

• Magnetic Pickup Inspection: Regularly inspect the magnetic pickup sensor and gap to ensure cranking speed signals remain within the required 1.0 V to 30 Vrms operating window during startup.
• Routine Calibration Audits: Periodically verify speed control calibration and check terminal screw tightness to prevent signal drift in high-vibration industrial environments.

❓ Frequently Asked Questions (Q&A)

• Q: What is the primary function of model 9907-014?
  • A: It functions as a dedicated electronic speed control unit designed to govern prime mover rotational speed reliably.
• Q: What are the magnetic pickup voltage limits for cranking?
  • A: It is specified to handle a cranking speed signal starting at 1.0 V up to a maximum of 30 Vrms.
• Q: Does this unit include load-sharing circuitry?
  • A: No, model 9907-014 belongs to the speed control series focused primarily on standalone speed governing.

🗂️ Recommended Woodward Alternative Models & Series

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