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Woodward SMM40IP44

Product Name: Woodward SMM40IP44 Digital Speed Governor Controller (IP44 Protection Version)

Product Introduction: Compact full-digital speed governor control unit, IP44 protection grade version of SMM40 series; realizes isochronous/droop speed closed-loop control for diesel/gas engines and small turbines, matches Woodward actuator systems.

Technical Specifications:

  • Power Supply: 12/24V DC wide voltage input

Detailed content

  • Speed Input: MPU/Hall speed sensor compatible
  • Control Output: 4–20mA analog governor signal to actuator
  • Operating Temperature: -20°C to +60°C
  • Protection Class: IP44 front panel
  • Control Modes: Isochronous constant speed, droop speed regulation switchable
  • Mounting: Front panel embedded installation

    Functional Features:

  • Digital PID speed closed-loop control with high steady-state accuracy
  • Supports single unit island operation and multi-unit parallel load sharing
  • Automatic start/stop logic, overspeed shutdown protection
  • Accepts external 4–20mA/1–5V load control signals
  • Fuel limit override control for startup operation
  • Local parameter setting and status indication

    Application Scenarios: Small-medium diesel/gas generator sets, industrial engine units, small turbine prime movers, backup power engine speed control systems.

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