Description
The WOODWARD 9907-838 is a high-performance industrial load sharing and speed control module from Woodward’s premium 9907 series. Specially designed for generator set parallel operation, power distribution balance and prime mover speed regulation, this module provides precise load sharing synchronization and stable speed correction for multi-unit power systems. Adopting industrial-grade circuit design and rugged metal casing, it features low power consumption, strong anti-interference capability and excellent environmental adaptability, widely used in industrial power stations, marine power systems, and engine generator control scenarios as a core auxiliary control unit for stable grid operation.
woodward 9907-838
Physical Specifications (Dimension & Weight)
Built with a sturdy integrated metal industrial casing, the WOODWARD 9907-838 supports standard cabinet embedded installation and fixed screw mounting. The compact structural design optimizes cabinet space utilization, simplifies on-site wiring layout, and maintains excellent structural stability under long-term industrial vibration and temperature fluctuation conditions.
Overall Dimensions (L × W × H): 273 × 214 × 59 mm (10.77 × 8.43 × 2.33 inches)
Net Weight: 1.36 kg (3.0 lbs)
Mounting Method: Standard industrial cabinet fixed mounting
Shell Feature: High-strength metal casing, dust-proof, corrosion-resistant and vibration-resistant
Core Electrical & Power Technical Parameters
Equipped with high-stability dedicated control chips and optimized power management circuits, the 9907-838 delivers accurate load signal collection and precise speed regulation output. It supports long-term uninterrupted industrial operation with stable power adaptation and low operational power consumption.
Universal Power Supply Range: 100–240 VAC, 50–400 Hz wide frequency adaptation
Nominal Power Consumption: ≤ 15 W low energy consumption operation
Load Sensing Input: 90–240 VAC three-phase industrial grid signal
Analog Control Output: +0.5 VDC to +4.5 VDC precision speed control signal
Maximum Output Frequency: 50 kHz high-frequency fast response
Speed Sensor Input Impedance: 100–300 Ω professional matching impedance
Compatibility & Interface Configuration Parameters
This load sharing module features excellent system compatibility and standardized industrial interface configuration. It perfectly matches Woodward 2301A speed control systems and SPM-A synchronizer modules, realizing seamless synchronization and load balance control for parallel generator units.
Compatible System: Woodward 2301A Electronic Load Sharing & Speed Control System
Sync Input Matching: Fully compatible with Woodward SPM-A synchronizer module
Signal Interface: Dedicated load detection interface and speed feedback interface
Control Mode: Automatic load distribution + dynamic speed correction dual mode
Environmental Adaptability & Certification Parameters
Optimized for harsh industrial working environments, the WOODWARD 9907-838 boasts ultra-wide temperature resistance, reliable moisture and dust resistance, and authoritative industrial certification, adapting to complex power plant and offshore working conditions.
Long-Term Stable Operating Temperature Range: -40°C to +70°C (-40°F to +158°F)
Maximum Tolerable Humidity: 95% Non-Condensing Relative Humidity
Industrial Certification: CE, RoHS Industrial Standard Certified
Environmental Resistance: Anti-vibration, anti-electromagnetic interference, high and low temperature resistant industrial grade performance
Intelligent Safety Protection Mechanisms
The module integrates multiple built-in intelligent protection functions to effectively avoid system imbalance, signal failure and equipment damage caused by abnormal power supply, load mutation and signal loss, ensuring safe and stable parallel operation of multi-generator sets.
Overvoltage & Undervoltage Protection: Automatic power anomaly detection and locking protection
Signal Loss Protection: Intelligent fault judgment and standby protection when load/speed signal is lost
Overload Protection: Automatic current limiting and power adjustment to avoid system overload imbalance
Electromagnetic Anti-Interference Protection: Built-in filter circuit for stable signal operation
Product Advantages & Application Scenarios
The WOODWARD 9907-838 features compact rugged structure, ultra-low power consumption, high-precision load sharing performance and wide environmental adaptability. It can automatically distribute active load evenly among parallel generator sets, effectively solving power imbalance and frequency deviation problems in multi-unit operation. With plug-and-play compatibility and simple debugging procedures, it greatly improves power system stability and reduces daily operation and maintenance costs.
It is widely applicable to industrial generator set parallel operation control, marine power system load balance management, power plant grid stability governance, and diesel engine speed regulation systems. All products pass strict factory aging tests and precision calibration, equipped with a 12-month official warranty, providing reliable long-term quality assurance for industrial power control systems.
