Woodward BUM60-VC-A0-0093
Woodward BUM60-VC-A0-0093 - Image 2

Woodward BUM60-VC-A0-0093

Product Introduction
The BUM60-VC-A0-0093 is a precision control interface module designed for the BUM60 excitation series. It acts as the critical link between the digital turbine/generator controller and the excitation system, translating digital control commands into precise analog signals for voltage and reactive power regulation.

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Description

Woodward BUM60-VC-A0-0093

Technical Specifications

  • Signal Input: 4-20 mA or 0-10V DC from digital controllers.
  • Signal Output: High-resolution analog output to the exciter AVR.
  • Processing: High-speed digital-to-analog conversion.
  • Power Supply: Isolated 24 VDC supply.

Functional Features

  • Precision Regulation: Ensures accurate tracking of voltage setpoints.
  • Signal Isolation: Provides complete galvanic isolation between the control system and high-voltage excitation circuits.
  • Fail-Safe Outputs: Drives the excitation to a safe minimum level upon loss of control signal.
  • Diagnostics: Continuous monitoring of output loop integrity.

Application Scenarios
Used in automated generator paralleling systems, microgrid controllers, and modernized legacy power plants.

Performance Parameters

  • Linearity: Better than ±0.1% full scale.
  • Response Time: Millisecond-level signal propagation.
  • Temperature Drift: Minimal drift across the industrial operating temperature range.

Material Composition
Industrial-grade printed circuit board with gold-plated connectors and conformal coating, housed in a protective metal chassis.

Structural Characteristics

  • Form Factor: Compact DIN-rail or panel-mount module.
  • Indicators: Front-panel LEDs for power, signal presence, and fault conditions.
  • Wiring: Plug-in terminal blocks for simplified field wiring.

Working Principle
The module receives a digital or analog command representing the desired generator terminal voltage. It conditions and amplifies this signal, outputting a precise analog voltage or current to the Automatic Voltage Regulator (AVR), which in turn adjusts the exciter field current.

Installation Requirements

  • Install in a clean, dry control panel away from high-voltage interference.
  • Use shielded twisted-pair cables for all analog signal connections.
  • Ground the shield at the controller end only to prevent ground loops.

Usage Precautions

  • Verify signal scaling matches the AVR input requirements.
  • Do not bypass the fail-safe output logic.
  • Perform regular calibration checks using a precision multimeter.

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