Woodward 9906-619 723 Plus Series Digital Control

The Woodward 9906-619 723 Plus Series Digital Control is a robust and reliable engine control unit designed for demanding industrial and power generation applications. It operates with a low-voltage input of 18–40 V DC (nominal 24 or 32 V DC), providing stable and efficient performance. Engineered for extreme conditions, it functions reliably across an operating temperature range of –40 °C to +70 °C (–40 °F to +158 °F) and can be safely stored between –55 °C and +105 °C (–67 °F to +221 °F). The 723 Plus Series control ensures precise digital monitoring and regulation of engine parameters, delivering dependable performance in harsh industrial environments.The 9906-619 supports both magnetic pickups (MPUs) and proximity switches as inputs and can be tuned for load sharing, droop control, and other advanced dynamic behaviors that are critical for generator paralleling and prime mover regulation.

Model: 9906-619
Series: Woodward 723PLUS Digital Control
Control Type: Digital engine/turbine controller (hardware only)
Power Supply Input: 18–40 V DC (nominal 24 or 32 V DC)
Operating Temperature: –40 °C to +70 °C (–40 °F to +158 °F)
Storage Temperature: –55 °C to +105 °C (–67 °F to +221 °F)
Chassis: Sheet‑metal enclosure with multiple connectors
Input Signal Compatibility: Magnetic pickups (MPUs) or proximity switches
Analog I/O: Four analog input channels (programmable)
Discrete I/O: Multiple digital inputs and outputs (configurable)
Network Support: LON or LinkNet node expansion support through accessory modules

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Q1: What is the Woodward 9906-619 723PLUS Digital Control used for?
A1: The Woodward 9906-619 is a digital control hardware module for industrial engine/turbine speed and load sharing systems in generator and prime mover applications.
Q2: What power supply does the 9906-619 require?
A2: The unit operates on a low‑voltage DC supply (18–40 V DC) with nominal 24 V or 32 V DC input.
Q3: Can the 9906-619 be used with magnetic pickups and proximity switches?
A3: Yes, the 9906-619 supports both magnetic pickup (MPU) and proximity switch speed sensor inputs.
Q4: Is software included with the 9906-619 control hardware?
A4: No - the 9906-619 model is hardware only and does not include embedded software; programming requires compatible external devices or systems.

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• Prime Mover Speed Governance:The 9906-619 acts as the central intelligence for engine and turbine regulation, utilizing high-speed digital processing to maintain consistent RPM stability across fluctuating load conditions.
• Multi-Unit Power Coordination:When operating in a parallel grid, the 9906-619 facilitates seamless communication between multiple generator sets, ensuring that the total electrical demand is distributed proportionally and efficiently.
• Flexible Frequency Detection:Engineered to work with various hardware setups, the 9906-619 supports both standard magnetic pickups and proximity switches, allowing for precise speed tracking regardless of the flywheel or gear configuration.
• Non-Volatile Data Security:The internal architecture of the 9906-619 utilizes dedicated EEPROM storage, which safeguards all user-defined parameters and calibration constants against data loss during sudden power interruptions.
• Thermal and Vibration Resistance:The physical chassis of the 9906-619 is optimized for mounting within dense industrial control cabinets, where it can withstand the high ambient temperatures and mechanical stress typical of engine rooms.

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