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GE IS415UCVHH1A｜Controller Board ｜
1. General Description
The Turbine Control Processor Module is the core computing unit of GE’s VME-based turbine control systems.
It executes real-time turbine control application programs, manages communication with I/O modules via the VME bus, and provides interfaces for HMI, DCS integration, and local maintenance.
The controller is designed to meet the real-time, reliability, and redundancy requirements of critical power generation equipment.
2. Operating System and Performance
Operating system: QNX real-time operating system
Computational performance: approx. 100,000 rungs / blocks per second
Deterministic task scheduling ensures high real-time control accuracy
3. Memory Configuration
Main memory: 128 MB SDRAM
Non-volatile storage: 128 MB CompactFlash (CF) card
CF card stores application code, configuration data, and historical information
4. Redundancy and System Architecture
Supports multiple system architectures:
Simplex
Dual
TMR (Triple Modular Redundancy)
Designed for seamless fault detection and controller switchover in redundant configurations
TMR systems require coordinated operation with redundant controller modules
5. Communication Interfaces
Ethernet:
2 × Ethernet ports (UDH communication)
Serial interfaces:
2 × RS-232C (COM1 / COM2)
USB:
2 × USB ports
Local interfaces:
VGA display output
Keyboard and mouse interface
Provides connectivity for:
HMI systems
DCS integration
Engineering workstation and local debugging
6. I/O and Bus Interface
Bus interface: VME bus
Connects to I/O modules for:
Data acquisition
Logical processing
Control output execution
7. Electrical and Environmental Specifications
Power supply: 200–250 VAC
Operating temperature: 0 ℃ to +70 ℃
PCB protection:
Moisture-proof
Anti-fouling
Conformal coating
8. Mechanical Specifications
Form factor:
6U VME module
Dimensions:
3.4 in × 6.37 in (8.64 cm × 16.19 cm)
Weight:
approx. 0.91 kg (2.00 lbs)
9. Documentation Reference
GE Manual Number: GEH-6421 M
10. Key Functions
Executes turbine control and protection application software
Interfaces with I/O modules via VME bus for real-time signal processing
Supports HMI communication and DCS interfacing
Provides local maintenance and debugging interfaces
Ensures deterministic real-time performance and high system reliability
11. Typical Applications
Gas turbine control systems
Steam turbine control systems
LM-series turbine control
Balance of Plant (BOP) equipment control
Core control loops requiring high safety and stability
12. Selection and Maintenance Guidelines
Redundancy selection
TMR architecture must be implemented with matching redundant controller modules to ensure seamless fault switching
Compatibility
Verify ControlST firmware version
Ensure compatibility between:
VME rack configuration
I/O modules (e.g., PCAA, PAIC, etc.)
Maintenance
Periodically check:
CompactFlash card data integrity
Backup battery condition
Cooling and ventilation components
Preventive maintenance ensures long-term stable system operation
GE IS415UCVHH1A｜Controller Board ｜
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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