Product Short Description
Product Overview
DS200VPBLG1A is a dedicated VME (Versa Module Eurocard) P2 Backplane Board (VPBL) in GE’s Mark V DS200 series, serving as the core interconnection and power distribution backbone for Load Commutator Inverter (LCI) control systems. It provides electrical and mechanical interconnection for modules in the card cage’s J2 and J3 sections, while the J1 section uses a commercial VME backplane. It features a multi-layer PCB design with separated digital and analog power planes to eliminate cross-interference, ensuring stable signal transmission and power delivery. It supports critical module integration, power distribution via dedicated power bugs, and external signal interface through dedicated connectors, forming the foundation for reliable and scalable LCI system operation. It enables seamless communication between control, I/O, and gate driver modules, and delivers deterministic power distribution to support high-integrity inverter control for turbine starting and load management.
Description
Technical Specifications
- Manufacturer: GE (General Electric) Boards & Turbine Control
- Series: Mark V DS200 (Speedtronic) for LCI (Load Commutator Inverter) Systems
- Board Type: VME P2 Backplane Board (VPBL)
- PCB Design: Multi-layer board with isolated digital and analog power planes
- Card Cage Sections: J2 and J3 dedicated backplane; J1 uses commercial VME backplane
- Supported Modules (J2 Section):
- Digital Signal Processor Control (DSPC) board in slot J1
- I/O expander with daughterboards in slot J3
- Up to 3 FCGD (Gate Distribution and Status) boards in slots J5/J7/J9
- Power Distribution: 10 power bugs (power distribution connectors) with bypass capacitors at each slot for stable power delivery
- Connectors:
- 34-pin ribbon connector for exciter interface
- 3 Mate-n-Lock™ connectors for current sensor interface board signals
- 3 20-pin connectors for voltage feedback scaling board signals
- Multiple VME P2 connectors for module insertion
- J2/J3 edge connectors for card cage integration
- Test Points: 60 spring-loop test points for accessing analog/digital signals from input power phases, DC outputs, and control circuits
- Physical Dimensions: Standard VME 6U form factor (233.35 mm × 160 mm); weight 1 lb 7 oz (0.65 kg)
- Power Input: 5V DC, ±15V DC, 24V DC from system power supply; distributed via power bugs
- Operating Temperature: -40 to 85°F (-40 to 29.4°C)
- PCB Coating: Conformal coating for dust, moisture, and industrial contaminant protection
- Compliance: Meets VMEbus ANSI/IEEE 1014-1987 standard; CE, UL certified
- Status Indicators: Power and section activity LEDs for visual monitoring of backplane health
Functional Features
- Isolated Power Planes: Separated digital and analog power planes minimize noise coupling and ensure signal integrity for precision control signals
- Modular Power Distribution: 10 power bugs with bypass capacitors deliver stable power to each slot, reducing voltage ripple and enhancing module reliability
- Scalable Module Support: J2 section accommodates DSPC, I/O expanders, and up to 3 FCGD boards to meet varying LCI system configurations
- External Signal Interface: Dedicated connectors for current sensors, voltage feedback, and exciter signals enable direct integration with power bridge monitoring circuits
- Comprehensive Test Access: 60 spring-loop test points allow real-time signal probing for troubleshooting and performance validation
- Dual-Section Backplane: J2/J3 dedicated design pairs with commercial J1 backplane to balance standardization and application-specific requirements
- Mechanical Robustness: Standard VME form factor ensures secure module seating and vibration resistance in industrial environments
Functional Advantages
- High Signal Integrity: Isolated power planes eliminate cross-talk, supporting accurate current/voltage measurement and gate driver control
- Enhanced System Reliability: Dedicated power bugs and bypass capacitors prevent power-related failures, critical for LCI inverter operation
- Flexible System Scaling: Support for up to 3 FCGD boards and I/O expanders enables customization for small to large turbine LCI systems
- Simplified Maintenance: Test points and LED indicators reduce diagnostic time and speed up troubleshooting
- Seamless Integration: Compatible with Mark V LCI system architecture and commercial VME components for easy retrofitting and upgrades
- Deterministic Power Delivery: Stable power distribution ensures consistent module performance for high-precision inverter switching and control
Application Scenarios
DS200VPBLG1A is essential for LCI-based turbine control and industrial power conversion applications, including:
- Turbine Starting Systems: LCI control systems for gas/steam turbine starting, providing backplane connectivity for DSPC, FCGD, and I/O modules to manage inverter power flow and motor acceleration
- Power Generation: Combined-cycle power plants and cogeneration facilities, integrating with LCI systems to control turbine starting and load balancing during grid transients
- Oil and Gas Compression: LCI-driven compressor packages for pipeline and processing plant applications, supporting reliable motor control and power conversion
- Marine Propulsion: Shipboard LCI systems for gas turbine starting and propulsion control, ensuring robust backplane performance in high-vibration marine environments
- Industrial Motor Drives: High-power motor control systems requiring precise inverter operation, using the backplane to connect control, sensor, and gate driver modules for seamless power and signal management
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