Woodward 5464-850

Woodward 5464-850 is a digital microprocessor control module under the Woodward 5464 series. It is specifically designed for industrial automation, gas turbine, and engine control systems. In the Woodward product catalog, this model is often associated with the "Digital Speed Sensor Module". It mainly provides high-speed and accurate speed measurement and signal conversion functions, and can work reliably in harsh on-site environments.

Main Technical Parameters

• Power Supply Voltage: 24 V DC (wide range: 10 ~ 32 V DC)
• Output Signal: 0 ~ 10 V DC or 4 ~ 20 mA (optional)
• Number of Channels: Single-channel or multi-channel (common configurations: 1, 2, 4 channels)
• Operating Temperature: -40 °C ~ +85 °C (IP65 protection level)
• Dimensions: Approximately 70 mm × 35 mm × 25 mm (single-slot VME/VME-bus specification)
• Response Time: ≤ 1 ms (high-speed sampling)
• Communication Interface: RS-485 (Modbus/Profibus optional)

Product Features

• High-Precision Speed Measurement: It adopts a high-speed A/D converter and digital filtering algorithm internally, with an error of ≤ ±0.5% FS.
• Multi-Output Compatibility: It supports analog voltage, analog current, and digital bus output, facilitating integration with upper-level systems.
• Robust and Reliable: It meets industrial-grade protection (IP65) and can resist dust, moisture, and temperature shocks.
• Modular Design: The single-slot VME-bus structure allows easy plugging and replacement in existing control cabinets, reducing maintenance costs.
• Programmable: Through the configuration software provided by Woodward, the range, filtering coefficient, and alarm threshold can be set.

Structure and Composition

• Power Module: Provides voltage stabilization, overcurrent, and short-circuit protection.
• Signal Acquisition Unit: Includes high-speed sampling circuit, A/D converter, and digital filter.
• Output Drive Unit: Consists of analog voltage/current drive circuit and digital bus interface.
• Communication/Control Interface: Comprises RS-485 port, status indicator light, and terminal block.
• Enclosure: Metal shell with protective cover, complying with the IP65 standard.

Typical Application Fields

• Speed control of gas turbines and steam turbines
• Speed monitoring of engines/compressors
• Speed closed-loop control in industrial automation systems
• Aerospace engine test platforms
• High-speed feedback loops in process control systems

Installation and Maintenance Points

Installation

1. Use a standard VME-bus slot and ensure correct connection of the backplane power supply and signal lines.
2. Use anti-static tools to prevent component damage.

Wiring

1. Connect the power terminal to 24 V DC.
2. Wire the signal input terminal according to the on-site sensor type (pulse, Hall, photoelectric).
3. Select the voltage or current mode for the output terminal based on system requirements.

Commissioning

1. Perform range calibration, filtering parameter setting, and alarm threshold configuration through the Woodward configuration software.
2. Save the settings to the internal EEPROM of the module after completion.

Daily Inspection

1. Regularly check the tightness of wiring, whether the heat sink is dusty, and whether the indicator lights are normal.
2. When an abnormal alarm occurs, use the Woodward on-site diagnostic tool to read the fault code.

Replacement

1. The module adopts a hot-swappable design and can be pulled out for replacement after shutdown.
2. Reload the configuration file after replacement to resume operation.

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