GE IS215UCVEH2AE VMIVME-7614-132 VME Turbine Controller CPU Board

The IS215UCVEH2AE (VMIVME-7614-132) is the core VME CPU controller for GE Speedtronic Mark VI turbine control system. It undertakes all main logic computing tasks of gas and steam turbines, receives real-time I/O data from analog/digital boards, executes closed-loop control algorithms, and sends control commands to servo drive modules to regulate valves and auxiliary equipment.

This single-slot industrial VME mainboard integrates large-capacity memory and multiple communication interfaces, adopting fully conformal coated PCB to adapt to high-temperature, vibration-intensive turbine control rooms. It supports redundant dual CPU hot backup and hot-swap replacement without unit shutdown, providing stable core computing for continuous power generation working conditions.

Main Specifications

• Brand: GE General Electric; Model: IS215UCVEH2AE VMIVME-7614-132; Series: Speedtronic Mark VI Turbine Control CPU
• Core Processor: High-performance industrial real-time CPU, dedicated for fast turbine control cycle calculation
• Memory Configuration: 132MB onboard storage, non-volatile memory for program, fault records and parameter storage
• Bus Interface: Standard VME backplane bus, high-speed data exchange with all I/O signal boards in the rack
• Communication Ports: Multiple Ethernet and serial ports for HMI, SCADA and redundant CPU interconnection
• Redundancy Function: Supports dual redundant CPU hot standby, seamless master-slave automatic switching
• Power Supply: VME rack backplane power supply, low power consumption long-term continuous operation design
• Environment: Operating -30℃ ~ +65℃, 5%–95% RH non-condensing, shock and vibration resistant industrial standard
• Diagnostic Indicators: Multi-group front panel LEDs to display CPU running status, communication link and fault alarm information
• Certifications: CE, UL industrial control certification, meets power generation turbine safety operation standards

Core Functions

• Centralized collection of all analog, digital, vibration and temperature signal data from peripheral I/O boards in the turbine control rack.
• Run core control algorithms including speed regulation, fuel control, over-temperature and overspeed protection logic judgment in real time.
• Output precise control instructions to servo valve boards and digital output modules to adjust turbine fuel valves, exhaust dampers and safety interlocks.
• Real-time data interaction with upper monitoring system via Ethernet, upload operating parameters, fault events and waveform records to HMI and SCADA.
• Dual redundant hot backup architecture automatically switches to standby CPU when the main board fails to avoid turbine unplanned shutdown.
• Hot-swappable modular design allows independent CPU board replacement without cutting power to the whole control rack to reduce maintenance downtime.

Application Scenarios

• Main CPU spare replacement for GE Mark VI gas turbine and steam turbine control racks in combined cycle power plants.
• Core control spare parts for petrochemical large centrifugal compressors and offshore platform power generation units.
• Maintenance backup inventory for waste heat power stations, industrial metallurgical furnace power generation auxiliary control cabinets.
• Matching main controller paired with Mark VI series analog, digital, vibration and temperature signal acquisition boards.
• Retrofit replacement components for aging turbine control systems with computing crash, communication interruption and logic operation failure faults.

• Global aftermarket spare stock for power generation maintenance teams managing legacy GE Speedtronic Mark VI turbine control equipment worldwide.