Description
Product Specification:WOODWARD SPM-D11 8440-1706B
1.Product Description
The WOODWARD SPM-D11 8440-1706B is a microprocessor-based synchronization and load-sharing controller designed for single-phase or three-phase AC generators.Built for compatibility with WOODWARD and third-party governors and voltage regulators,it ensures seamless integration into power generation systems.Key functions include frequency/phase matching,voltage regulation,load distribution,and generator protection.Its modular design and user-friendly interface make it ideal for both standalone and parallel operation scenarios.
2.Product Parameters
Parameter Specification
Input Voltage 12/24 VDC(SPM-D11/LSR),18–250 VAC/DC(SPM-D11/LSXR)
Power Consumption≤18W
Operating Temperature-40°C to 70°C(-40°F to 158°F)
Input Signals 2-phase voltage,1-phase current
Output Signals Analog(0–5V,4–20mA)or PWM(500Hz)
Control Interfaces RS-485(Modbus RTU),Ethernet(Modbus TCP)
Dimensions 264×461×58 mm
3.Advantages and Features
Precision Synchronization:Automatically matches frequency,phase,and voltage for reliable grid connection.
Flexible Load Management:Supports load sharing,power factor control,and soft unloading to prevent abrupt system changes.
Comprehensive Protection:Includes over/under-voltage,frequency,and reverse power protection(ANSI 59/27,81O/U,32R/F).
Dual Configuration Options:Configurable via front-panel LCD or PC software(LeoPC),with multi-level password protection.
CE and UL/CSA Certified:Ensures compliance with international safety and performance standards.
4.Application Areas and Case Studies
Power Generation:Optimizes load distribution in diesel,gas,or steam turbine generators.
Industrial Automation:Controls rotating equipment like pumps and compressors.
Marine Systems:Manages auxiliary power units on ships.
Case Study:
A WOODWARD SPM-D11 8440-1706B installed in a 10 MW gas-fired power plant reduced synchronization time by 30%and improved load-sharing accuracy to±2%,enhancing grid stability and operational efficiency.
5.Competitive Comparison
Compared to similar controllers,the SPM-D11 8440-1706B offers:
Higher Input Voltage Range:Supports both low-and high-voltage systems.
Enhanced Communication:Integrates Ethernet for remote monitoring and Modbus TCP/RTU for seamless DCS/PLC integration.
Cost-Effective Design:Reduces hardware complexity with combined synchronization and load control in a single unit.
6.Selection Recommendations
System Compatibility:Verify voltage/current ratings and communication protocols with existing equipment.
Environmental Conditions:Ensure the operating temperature range matches site requirements.
Scalability:Choose the SPM-D11/LSXR variant for analog control flexibility in complex systems.
7.Precautions
Installation:Follow wiring diagrams to avoid short circuits;use shielded cables for analog signals.
Maintenance:Regularly update firmware and inspect terminals for loose connections.
Safety:Disconnect power before accessing internal components.
Shanxi Xinyeda International Trade Co., Ltd. is your trusted partner. We offer sales and technical support for the WOODWARD 8200 – 1312 and other automation spare parts. Please visit our website www.xydcontrol.com or contact us, and we will serve you whole – heartedly.
