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Woodward 9905-971 Rev L DSLC Digital Synchronizer Load Control

Woodward 9905-971 Rev L DSLC Digital Synchronizer Load Control

  • Manufacturer: Woodward

  • Product No.: 9905-971 Rev(L)

  • Condition:1000 in stock

  • Product Type: Digital Synchronizer

  • Product Origin: 8975118631171

  • Payment: T/T, Western Union

  • Weight: 3000g

  • Shipping port: Xiamen

  • Warranty: 12 months

  • 24/7 Support
  • 30-Day Returns
  • Fast Shipping

Woodward 9905-971 Rev L DSLC Digital Synchronizer and Load Control

The Woodward 9905-971 Rev L represents a proven solution in digital synchronization and load control technology, engineered to deliver precise generator set coordination in parallel power generation environments. This DSLC module integrates advanced microprocessor-based control algorithms to ensure seamless synchronization, load sharing, and system protection across multiple generator configurations.

Technical Specifications

  • Model: 9905-971 Revision L
  • Control Type: Digital Synchronizer and Load Control (DSLC)
  • Input Voltage Range: 18-32 VDC nominal (24 VDC typical)
  • Operating Temperature: -40°C to +70°C
  • Synchronization Accuracy: ±5 electrical degrees
  • Load Control Resolution: 0.1% of rated load
  • Communication Protocol: Modbus RTU, RS-485
  • Mounting: Panel mount, DIN rail compatible

Application Scenarios

This synchronizer module excels in mission-critical power generation applications including data centers requiring N+1 redundancy, industrial facilities with co-generation systems, marine vessel propulsion and auxiliary power, utility peaking plants with multiple prime movers, and microgrid installations integrating renewable sources. The Rev L firmware enhancement provides improved transient response during load step changes and refined droop compensation algorithms.

System Integration & Solutions

The 9905-971 interfaces directly with governor actuators, voltage regulators, and protective relay systems to form a complete genset control architecture. When deployed with Woodward 9905-760 DSLC modules, operators can establish scalable paralleling systems supporting 2 to 32 generator sets. Integration with SPM-A Synchronizer modules enables hybrid control strategies for complex power distribution networks.

Frequently Asked Questions

Q: What differentiates Rev L from earlier revisions?
A: Revision L incorporates enhanced load-sharing algorithms, improved noise immunity on analog inputs, and extended diagnostic capabilities through the Modbus interface. Firmware updates address edge cases in frequency mismatch scenarios and provide faster synchronization lock times.

Q: Can this module handle renewable energy integration?
A: Yes, the 9905-971 Rev L supports variable-frequency sources when paired with appropriate power conversion equipment. It manages load transitions between conventional generators and battery energy storage systems or solar inverters in microgrid configurations.

Q: What maintenance intervals are recommended?
A: Perform quarterly calibration verification of voltage and frequency sensing circuits. Annual firmware backup and configuration file archiving are advised. Inspect terminal connections semi-annually in high-vibration environments.

Q: Is this compatible with legacy Woodward controls?
A: The 9905-971 Rev L maintains backward compatibility with 505E governors and 2301A load sharing controls through standard analog interfaces. Digital communication requires Modbus-capable devices.

Warranty & Support

Every Woodward 9905-971 Rev L module includes a comprehensive 12-month warranty covering manufacturing defects and component failures under normal operating conditions. Technical support includes configuration assistance, troubleshooting guidance, and firmware update notifications.

Related Products

Product Application Link
Woodward 9905-760 DSLC Multi-generator paralleling systems View Product
Woodward 9907-028 Rev C SPM-A Synchronizer module for steam/gas turbines View Product
Woodward 9905-377 DSLC Alternative DSLC configuration View Product

© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191

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Product Description

Woodward 9905-971 Rev L DSLC Digital Synchronizer and Load Control

The Woodward 9905-971 Rev L represents a proven solution in digital synchronization and load control technology, engineered to deliver precise generator set coordination in parallel power generation environments. This DSLC module integrates advanced microprocessor-based control algorithms to ensure seamless synchronization, load sharing, and system protection across multiple generator configurations.

Technical Specifications

  • Model: 9905-971 Revision L
  • Control Type: Digital Synchronizer and Load Control (DSLC)
  • Input Voltage Range: 18-32 VDC nominal (24 VDC typical)
  • Operating Temperature: -40°C to +70°C
  • Synchronization Accuracy: ±5 electrical degrees
  • Load Control Resolution: 0.1% of rated load
  • Communication Protocol: Modbus RTU, RS-485
  • Mounting: Panel mount, DIN rail compatible

Application Scenarios

This synchronizer module excels in mission-critical power generation applications including data centers requiring N+1 redundancy, industrial facilities with co-generation systems, marine vessel propulsion and auxiliary power, utility peaking plants with multiple prime movers, and microgrid installations integrating renewable sources. The Rev L firmware enhancement provides improved transient response during load step changes and refined droop compensation algorithms.

System Integration & Solutions

The 9905-971 interfaces directly with governor actuators, voltage regulators, and protective relay systems to form a complete genset control architecture. When deployed with Woodward 9905-760 DSLC modules, operators can establish scalable paralleling systems supporting 2 to 32 generator sets. Integration with SPM-A Synchronizer modules enables hybrid control strategies for complex power distribution networks.

Frequently Asked Questions

Q: What differentiates Rev L from earlier revisions?
A: Revision L incorporates enhanced load-sharing algorithms, improved noise immunity on analog inputs, and extended diagnostic capabilities through the Modbus interface. Firmware updates address edge cases in frequency mismatch scenarios and provide faster synchronization lock times.

Q: Can this module handle renewable energy integration?
A: Yes, the 9905-971 Rev L supports variable-frequency sources when paired with appropriate power conversion equipment. It manages load transitions between conventional generators and battery energy storage systems or solar inverters in microgrid configurations.

Q: What maintenance intervals are recommended?
A: Perform quarterly calibration verification of voltage and frequency sensing circuits. Annual firmware backup and configuration file archiving are advised. Inspect terminal connections semi-annually in high-vibration environments.

Q: Is this compatible with legacy Woodward controls?
A: The 9905-971 Rev L maintains backward compatibility with 505E governors and 2301A load sharing controls through standard analog interfaces. Digital communication requires Modbus-capable devices.

Warranty & Support

Every Woodward 9905-971 Rev L module includes a comprehensive 12-month warranty covering manufacturing defects and component failures under normal operating conditions. Technical support includes configuration assistance, troubleshooting guidance, and firmware update notifications.

Related Products

Product Application Link
Woodward 9905-760 DSLC Multi-generator paralleling systems View Product
Woodward 9907-028 Rev C SPM-A Synchronizer module for steam/gas turbines View Product
Woodward 9905-377 DSLC Alternative DSLC configuration View Product

© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191