Woodward SPM-D11 8440-1706/D DCS control module

The Woodward SPM-D11  8440-1706/D is a microprocessor-based synchronizer and load-share module featuring 18–32 VDC logic supply, three-phase True RMS PT/CT sensing, automatic frequency/phase/voltage matching with dead-bus closing, isochronous kW/kVar load sharing, generator protection (reverse power, O/U voltage & frequency), a two-line LCD HMI, RS-232/485 with Modbus, and –40°C to +70°C operation, designed for precise paralleling and protection of AC generator sets in industrial, marine, and standby power systems.

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Description

Technical Specifications
  • Brand
    Woodward
  • Model
    SPM-D11
  • Product Name
    SPM-D11 Load Share and Synchronizer Module
  • Country of Origin
    United States
  • HS Code
    85371019
  • Dimensions
    120mm×115mm×72mm
  • Weight
    0.8kg
  • Operating Temperature
    -20°C to +70°C
  • Storage Temperature
    -40°C to +85°C
  • Part Number
    8440-1706/D
  • Warranty
    12 month
  • Product Status
    New and original

Woodward SPM-D11 (8440-1706/D) Product Introduction and Technical Parameters

Electrical Parameters

Tailored for industrial and marine DC power supply systems, the module has wide voltage adaptation and low power consumption performance. It supports a DC input voltage range of 9.5VDC to 32VDC, compatible with 12VDC and 24VDC standard power supply systems, and can resist common on-site voltage fluctuations. The maximum power consumption of the whole machine is 10W with extremely low standby loss. Equipped with high-stability internal power regulation circuit, it ensures constant voltage and current output during operation. It integrates complete over-voltage, under-voltage and over-current protection functions to avoid module damage caused by abnormal power supply. Meanwhile, it supports high-precision analog and PWM signal output, providing accurate speed and voltage bias signals for generator synchronization and load adjustment.

SPM-D11 8440-1706  .jpg

Core Product Characteristics

Core Product Characteristics

Firstly, it delivers high-precision synchronous control performance. Adopting professional sampling and calculation algorithms, it achieves high-accuracy frequency and phase matching, ensuring seamless and impact-free grid connection of generator sets.

Secondly, it features ultra-wide environmental adaptability and stable hardware performance. With wide temperature working range and graded dustproof and waterproof structure, it maintains consistent control accuracy in harsh marine and industrial scenarios.

Thirdly, it has strong universal compatibility. It can be perfectly matched with Woodward and third-party governors and regulators, adapting to single-phase and three-phase generator equipment of different power levels.

Fourthly, it features low power consumption and high operational safety. The low-power circuit design reduces system energy consumption, and multiple built-in power protection mechanisms effectively avoid equipment failure caused by power supply anomalies.

 

SPM-D11 8440-1706.jpg

Product Advantages

Product Advantages

The Woodward SPM-D11 8440-1706/D boasts prominent application advantages in generator parallel control scenarios. Its integrated synchronization and load sharing functions replace discrete traditional functional modules, effectively simplifying system structure and reducing overall equipment investment and maintenance costs. The high-precision control algorithm eliminates grid impact during paralleling and load switching, protecting generator unit hardware and prolonging equipment service life. With lightweight compact design, convenient installation and simple debugging, it greatly improves on-site construction efficiency. Verified by a large number of marine and industrial field applications, the module features stable long-term operation, strong anti-interference ability and high system compatibility, serving as a reliable core synchronization and load sharing control component for multi-generator parallel power systems.

SPM-D11 8440-1706  .jpg

Interface and Functional Configuration

The module is equipped with practical and efficient functional interfaces and built-in operational algorithms. It integrates high-precision voltage and frequency sampling channels, supporting real-time collection of generator and busbar voltage and frequency signals. It provides multiple signal output modes including analog quantity and PWM, which can be matched with various speed governors and voltage regulators. It supports master-slave control mode for multi-unit parallel operation, and realizes automatic synchronous closing and intelligent load balancing. The front panel is equipped with intuitive display indicators and operation keys, facilitating real-time parameter viewing, manual fine-tuning and fault judgment, covering full-process control of generator synchronization and load sharing.

SPM-D11 8440-1706.jpg

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