Company Information | ||||||||
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+8613666033393 | ||||||||
13666033393 | ||||||||
Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China |
Product Introduction
The Woodward 9905-007N is a Digital Synchronizer and Load Control (DSLC™) unit, designed to provide precise control of generator synchronization, load sharing, and system stability. This advanced digital controller integrates voltage matching, phase synchronization, and automatic load control in one compact, reliable device.
Ideal for complex generator control applications, the 9905-007N ensures smooth paralleling to live bus systems while offering built-in diagnostics, high-speed microprocessor logic, and extensive flexibility in configuration. It is especially valuable for applications where power continuity and frequency regulation are critical.
This model is part of Woodward’s DSLC series, which has earned a global reputation for durability and precision in power management solutions for industrial, marine, and commercial generator systems.
Technical Specifications
Parameter | Value |
---|---|
Model Number | Woodward 9905-007N |
Product Type | Digital Synchronizer and Load Control |
Power Supply | 90–150 VDC or 120/240 VAC (selectable) |
Control Modes | Isochronous, Droop, and Base Load |
Frequency Range | 45 to 66 Hz |
Input Voltage Range | 80 to 150 VAC (line sensing inputs) |
CT Inputs | 1 A or 5 A (configurable) |
Display Interface | LED indicators and serial configuration port |
Communication | RS-232 and RS-485 (Modbus RTU) |
Relay Outputs | Form C, 5 A @ 250 VAC or 30 VDC |
Speed Trim Output | ±5 VDC or 4–20 mA (field configurable) |
Operating Temperature | –40 °C to +70 °C (–40 °F to +158 °F) |
Storage Temperature | –55 °C to +105 °C (–67 °F to +221 °F) |
Enclosure Type | Panel-mounted, enclosed chassis |
Dimensions (H × W × D) | 191 x 30 x 240 mm |
Weight | 2.29 kg |
Certifications | CE, CSA, UL recognized |
Mounting Type | Panel-mount, rear connection terminal block |
Applications
The Woodward 9905-007N is designed for sophisticated power generation and distribution systems that demand robust synchronization and real-time load sharing. Key application areas include:
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Industrial Power Plants – For seamless genset synchronization and active power management.
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Marine Propulsion Systems – Ensures reliable paralleling and load balancing in marine vessels.
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Data Centers – Maintains generator performance in high-availability infrastructures.
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Municipal Utilities – Facilitates grid interfacing and load management for local generation units.
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Military and Aerospace Facilities – Ideal for redundant power systems requiring tight frequency and phase control.
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Remote Mining and Oil Facilities – Provides off-grid power control with stability and redundancy.
Product Advantages
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Integrated Synchronization & Load Control: Combines automatic voltage matching, phase synchronization, and real-time load distribution in one device.
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Advanced Communication Capabilities: Supports RS-232 and RS-485 for seamless integration into SCADA and control systems.
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Flexible Power Supply: Operates on both AC and DC input power, ensuring adaptability in diverse environments.
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Programmable Logic: Digital configuration allows custom control strategies tailored to specific plant needs.
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Rugged Industrial Design: Built to withstand extreme temperatures and high-vibration environments.
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Panel-Mounted for Easy Installation: Simplifies field setup with clearly labeled rear terminals.
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Reliable Frequency Control: Maintains system frequency and phase synchronization during load transitions.
Frequently Asked Questions (FAQ)
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Q: What is the primary function of the 9905-007N?
A: It is a digital controller that synchronizes generators to a live bus and controls load sharing between units. -
Q: Can this controller handle both AC and DC power inputs?
A: Yes, it supports 90–150 VDC or 120/240 VAC selectable inputs. -
Q: What type of generators is the 9905-007N compatible with?
A: It can work with diesel, gas, or turbine generators in parallel operation systems. -
Q: Does the unit support Modbus communication?
A: Yes, it features Modbus RTU via RS-485 or RS-232 ports for remote monitoring and control. -
Q: What is the typical operating temperature range?
A: The unit operates reliably between –40 °C and +70 °C. -
Q: Can it be used in marine applications?
A: Absolutely. Its rugged design and flexible control features make it suitable for marine systems. -
Q: What are the output options for governor control?
A: It offers ±5 VDC or 4–20 mA output signals for speed trim or governor control. -
Q: Is the controller suitable for use in high-altitude installations?
A: Yes, it is designed for stable operation even under varying environmental pressures and altitudes. -
Q: How is the unit mounted?
A: It is a panel-mounted device with rear terminal blocks for electrical connections. -
Q: Does the controller offer manual override functionality?
A: Yes, it supports manual control modes for commissioning and backup operation scenarios.
Related Models from the Same Series or Category
Model | Description | Power Supply | Key Feature |
---|---|---|---|
9905-001 | Basic DSLC unit for simple synchronization | 24 VDC | Isochronous control only |
9905-005 | Enhanced DSLC with droop and base load options | 24 VDC | Multi-mode support |
9905-013 | Digital synchronizer for marine gensets | 120/240 VAC | Marine certified |
9905-033 | DSLC with load control and peak shaving | 90–150 VDC | Peak shaving/load management |
9905-025 | Digital controller with redundant power inputs | Dual AC/DC | Redundancy features |
9905-021 | DSLC for high-performance industrial turbines | 120 VAC | High-frequency synchronization |
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