GE IS200VTCCH1CBB VTCC Thermocouple Input Board

The IS200VTCCH1CBB (VTCC) is a dedicated thermocouple signal acquisition board for GE Speedtronic Mark VI turbine control platform, adopting standard VME single-slot design. It collects millivolt-level thermocouple temperature signals from turbine exhaust, burner and hot gas components, converts weak analog thermal signals into digital values, and transmits temperature data to the main controller for overheat protection and combustion monitoring.

This pluggable board matches dedicated thermocouple terminal baseplates, with full conformal coated PCB to resist high temperature, dust and vibration in turbine control rooms. It supports hot-swap maintenance without powering off the whole rack, built-in cold junction compensation and full-channel breakage detection to ensure long-term stable temperature measurement for power generation units.

Main Specifications

• Brand: GE General Electric; Model: IS200VTCCH1CBB; Series: Speedtronic Mark VI Turbine Control System
• Input Channels: 16 independent thermocouple input channels, compatible with K, J, T, S, R, B standard thermocouples
• Measurement Performance: 16-bit high precision ADC, built-in automatic cold junction compensation function
• Signal Isolation: Channel-to-backplane reinforced isolation, anti-surge and high-frequency noise filtering circuit
• Backplane Interface: Standard VME bus connector, low power consumption, single slot cabinet installation
• Matching Accessories: Special thermocouple terminal baseplates and shielded low-noise signal cables
• Operating Environment: -30℃ ~ +65℃ working temperature, 5%–95% RH non-condensing, anti-vibration industrial standard
• Diagnostic Function: Front panel LED lights display power, bus communication and channel open-circuit fault alarms
• Certifications: CE, UL industrial control certification, meets thermal monitoring safety standards for gas/steam turbines

Core Functions

• Collect tiny millivolt thermal signals from thermocouple sensors installed on turbine exhaust, combustion chamber and hot gas pipelines.
• Built-in cold junction compensation eliminates temperature deviation caused by internal board temperature changes to guarantee accurate temperature readings.
• Onboard signal conditioning amplifies weak thermocouple signals and filters electromagnetic interference from rotating equipment and inverters.
• Real-time channel self-diagnosis quickly detects broken thermocouple wires and abnormal signal values, uploading fault alarms to system HMI.
• VME high-speed bus realizes real-time data transmission with main CPU to support turbine over-temperature trip protection logic.
• Hot-swappable modular design allows independent board replacement without shutting down the entire turbine control rack to reduce unit downtime.

Application Scenarios

• Thermocouple acquisition spare replacement for GE Mark VI gas turbine and steam turbine control racks in combined cycle power plants.
• High-temperature monitoring spare parts for petrochemical large centrifugal compressors and offshore power generation platforms.
• Maintenance backup inventory for waste heat power stations, metallurgical heating furnace power generation auxiliary control cabinets.
• Matching temperature board paired with Mark VI main controllers, thermocouple terminal bases and high-temperature K-type sensors.
• Retrofit replacement components for aging turbine control systems with temperature reading deviation and wire break detection failure.

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