Woodward 8444-1067 Analog Input Module

Product Description

The Woodward 8444-1067 is a high-precision analog input module designed for integration with Woodward's 8444 series and MicroNet™ Plus control systems, engineered specifically for critical power generation, marine, and industrial turbine/compressor control applications requiring accurate and reliable analog signal acquisition. Built with rugged industrial-grade components, advanced signal conditioning circuitry, and galvanic isolation, this module delivers exceptional stability and accuracy in harsh environmental conditions (extreme vibration, electrical noise, wide temperature fluctuations) typical of power plants, offshore platforms, and industrial processing facilities. Its compact, rack-mount form factor integrates seamlessly with Woodward control system chassis, while hot-swappable functionality (where supported) enables maintenance without disrupting critical prime mover control processes. The 8444-1067 supports a wide range of industrial analog signals with built-in diagnostic capabilities, making it an essential component for monitoring critical process variables (pressure, temperature, speed, flow) in turbine, generator, and compressor control systems.

Key Functions

The primary function of the Woodward 8444-1067 module is to acquire, condition, and convert industrial analog input signals into high-resolution digital data for Woodward 8444 and MicroNet Plus control systems, ensuring ultra-high accuracy for critical rotating equipment control applications. It features 8 independent analog input channels capable of accepting a wide range of signal types including 4-20 mA, 0-10 V DC, 1-5 V DC, and thermocouple (Type J/K/T/E) signals, with each channel providing individual calibration, cold-junction compensation (for thermocouples), and configurable signal scaling. The module incorporates galvanic isolation (channel-to-channel and channel-to-backplane) to eliminate ground loops and ensure signal integrity in noisy industrial environments, along with surge and transient protection to withstand harsh electrical conditions. It includes comprehensive built-in diagnostics to detect signal faults (open circuits, short circuits, out-of-range values), module malfunctions, and power supply issues, with LED status indicators for quick visual fault identification and diagnostic data communicated to Woodward's DiagnosticSuite software for alarm reporting and predictive maintenance. Additionally, the 8444-1067 offers 16-bit high-resolution analog-to-digital conversion, ultra-low temperature drift, and compliance with marine and industrial safety standards, ensuring consistent performance in long-term, mission-critical operation.

Application Scenarios

The Woodward 8444-1067 analog input module is primarily deployed in high-precision rotating equipment control systems across power generation, marine, and industrial sectors. In fossil fuel power plants (gas/steam turbines), it acquires analog signals from speed sensors (magnetic pickups), pressure transmitters (lubrication oil pressure), and temperature sensors (turbine bearing temperature) for Woodward 8444 turbine control systems, ensuring precise speed regulation and equipment protection. For marine applications (shipboard main propulsion engines, auxiliary gas turbines), it processes analog inputs from fuel pressure transmitters, exhaust gas temperature sensors, and engine speed sensors—complying with marine classification society standards (ABS, Lloyd's Register, DNV) for reliable operation in harsh marine environments. In industrial compressor applications (natural gas pipeline compression stations, petrochemical plant centrifugal compressors), it monitors analog signals from anti-surge pressure transmitters, lube oil temperature sensors, and compressor discharge pressure transducers for Woodward compressor control systems, preventing catastrophic compressor failures and optimizing performance. The module is also used in emergency diesel generator control systems for critical power backup (data centers, hospitals, utilities), where it acquires analog signals from generator speed sensors and coolant temperature transducers for precise load control, and in renewable energy applications (biomass, waste-to-energy plants) for monitoring turbine exhaust temperature and steam pressure analog signals in compact control enclosures.

Technical Specifications