Woodward 8440-1546 H MicroNet Digital Control Module

Product Brief Introduction The 8440-1546 H is a MicroNet series digital control module from Woodward. It provides core processing and I/O capability for engine and turbine control systems, with integrated speed control, sequencing and protection functions for power generation and industrial drive applications.
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Technical Specifications

Processor: 32-bit industrial microcontroller. Memory: 2MB flash, 1MB RAM. I/O: 8 DI, 4 DO, 2 AI, 1 AO. Speed input: 1 magnetic pickup. Communication: RS-485 Modbus. Power supply: 24V DC. Power dissipation: 8W. Operating temperature range: -40°C to +70°C.

Functional Features

Integrated PID speed and load control. Sequencing and logic functions. Overspeed and under-speed protection. Modbus RTU communication. Non-volatile event logging. Front panel status and programming interface.

Application Scenarios

It controls engine generator sets, gas turbines, compressor drives and pump systems in power generation, oil & gas and process industries.

Performance Parameters

Speed accuracy: ±0.25% rated speed. Scan time: 10ms. Communication rate: up to 19200bps. Operating temperature range: -40°C to +70°C. Vibration resistance: 5G.

Material Composition

Housing: anodized aluminum alloy. PCB: FR-4 with conformal coating. Connectors: gold-plated copper. Terminals: tin-plated copper.

Structural Characteristics

Compact module housing, front panel LEDs and connector, side terminal blocks, DIN rail mounting base.

Working Principle

It measures speed and process inputs, executes control and logic programs, outputs control signals to actuators, and manages communication and protection functions to regulate engine and drive operation.

Installation Requirements

Mount on 35mm DIN rail. Connect I/O wiring. Configure parameters via programming tool. Calibrate speed input.

Usage Notes

Back up configuration before changes. Test protection functions periodically. Follow ESD procedures.




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