WOODWARD | 9907-174 | Load Sharing Module (LSM)

Description

Product Technical Parameters

• Brand: WOODWARD
• Model: 9907-174
• Series: LSM (Load Sharing Module) Series
• Product Name: Load Sharing and Speed Control Module
• Country of Origin: USA
• Condition Status: Industrial Factory Original / Brand New In-Stock
• Dimensions: Standard modular enclosure format (approx. 215.9 mm x 184.2 mm x 49.2 mm)
• Weight: Approximately 1.3 kg (2.8 lbs)
• Power Supply / Rating: 115/230 VAC supply voltage configuration (selectable input power)

⚙️ Operation Specifications and Usage Methods

• Installation Preparation: Ensure all power sources to the electrical control cabinet are completely locked out and tagged out. Mount the modular chassis securely inside a protective industrial enclosure, adhering to standard electrostatic discharge precautions.
• Parameter Configuration: Set the 115/230 VAC supply voltage configuration via internal jumpers or terminal connections. Calibrate the PWM/GenDec output types to match the specific governor or actuator speed control input requirements.
• Operational Control: Configure the module to provide isochronous or droop load sharing across the generator network, allowing seamless active power balancing between both Woodward and non-Woodward equipped engine systems.

⚡ Startup and Shutdown Sequence

• Startup Sequence:
  1. Inspect all terminal wiring, confirming proper isolation and secure connections across the AC supply lines, CT/PT inputs, and control output leads.
  2. Energize the 115/230 VAC supply voltage and verify that the module powers on successfully without diagnostic faults.
  3. Start the prime mover and bring the generator up to rated operating speed and nominal voltage.
  4. Engage the parallel control mode to allow the LSM module to actively manage proportional load sharing via the PWM/GenDec outputs.
• Shutdown Sequence:
  1. Transfer active electrical load away from the generator unit using manual or automated base-load shedding.
  2. Open the generator circuit breaker to completely decouple the unit from the shared electrical busbar.
  3. Shut down the prime mover engine or turbine according to standard mechanical safety protocols.
  4. De-energize the AC power supply and control circuits once the system is fully offline.

💡 Product Description

The Woodward 9907-174 is a versatile Load Sharing Module (LSM) engineered to provide precise proportional power distribution for parallel-running AC generators. Featuring configurable PWM/GenDec output types and a dual 115/230 VAC supply voltage range, this unit is uniquely designed to enable reliable isochronous and droop load sharing across mixed fleets consisting of both Woodward and non-Woodward equipped engines.

❓ Frequently Asked Questions (Q&A)

• Q: What output types does the 9907-174 model utilize?
  • A: It features PWM/GenDec output types to interface with a wide range of electronic governor and speed control architectures.
• Q: What supply voltage does this module accept?
  • A: It is built for a selectable 115/230 VAC supply voltage input.
• Q: Can this module work with non-Woodward engine controls?
  • A: Yes, one of its primary advantages is its ability to facilitate isochronous and droop load sharing with both Woodward and non-Woodward equipped engine systems.