GE IS200VCRCH1B Input/Relay Output Board
Delivery time 3 days
Product origin New/used
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GE IS200VCRCH1B Input/Relay Output BoardModel: IS200VCRCH1BBrand: General Electr
GE IS200VCRCH1B Input/Relay Output Board
Model: IS200VCRCH1B
Brand: General Electric (GE)
Series: Speedtronic Mark VI Turbine Control System
Type: VME Bus Digital Input/Relay Output Board (VCRC Type)
This board is the core discrete I/O module of the Mark VI control system, specifically designed for condition monitoring and safety control of rotating machinery such as gas turbines and steam turbines. It is responsible for acquiring field dry contact signals and driving external relay actuators to realize unit start-up and shutdown, protection interlocking, and process control.
Core Functions
48 Discrete Inputs: Acquires 48 dry contact/wet contact signals (24V DC), which are then optically isolated before being sent to the system. Supports millisecond-level SOE (Sequence of Events) recording for critical condition monitoring.
24-Channel Relay Output: Drives 24 independent relays, with contact capacity supporting 250V AC/30V DC. Single-channel rated current is 0.5–1A, with some channels reaching 2A. Used to control solenoid valves, circuit breakers, alarm lights, and other actuators.
High-Speed Scanning and Isolation: Input signals are sampled at 1ms high speed. Electrical isolation between input/output channels (≥2500V AC) suppresses electromagnetic interference in industrial environments.
VME Bus Communication: Enables high-speed communication with the Mark VI master controller (VCCC) via the VME backplane, facilitating real-time data exchange and control command issuance.
Fault Diagnosis and Protection: Built-in overcurrent and short-circuit protection; supports channel status diagnosis for quick fault location.
Key Technical Specifications: Input Specifications: 48 dry contacts / 24V DC wet contacts, optocoupler isolation, SOE resolution 1ms.
Output Specifications: 24 relay outputs, contact capacity 250V AC/30V DC, 0.5–1A (standard)/2A (high power).
Power Supply: 24V DC (VME backplane powered).
Installation: VME rack mounting (single/double slot), compatible with Mark VI I/O cabinets.
Operating Temperature: -40℃ to +70℃ (industrial-grade wide temperature range).
Protection: PCB conformal coating, suitable for G3-level industrial environments.
Status: Discontinued; spare parts are available in the market as new/refurbished/repaired parts.
Application Scenarios: Gas/Steam Turbines: Start-up/shutdown control, overspeed protection, vibration interlock, valve actuation.
Combined Cycle Power Plants: Unit safety interlock, bypass valve control, alarm output.
Oil/Gas Compressor Units: Anti-surge control, emergency shutdown, status alarm.
Industrial Rotating Equipment: Motor protection, pump/valve control, safety circuit execution.
Supporting Components:
Input Terminal Block: TBCI (24 channels/block, 2 blocks required for 48 inputs).
Output Terminal Block: TRLY (24 relay outputs).
Compatible Motherboards: IS200VTURH2B, IS200TTURH2B, and other Mark VI processor boards.
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