Product Short Description
The IS200TVBAH2ABC is a high-density, high-reliability vibration termination and signal conditioning board designed as the primary interface between field vibration sensors and the Mark VI/VIe turbine control system. It serves as the critical signal hub for seismic (velocity), proximity (eddy-current), and magnetic pickup (MPU) sensors, which monitor shaft vibration, displacement, speed, and key phase in gas, steam, and combined-cycle turbines. Engineered for safety-critical industrial environments, the board integrates precision signal conditioning, surge protection
Description
Technical Specifications
- Board Type: Vibration Input Termination PCB (Surface Mount Technology)
- System Compatibility: GE Mark VI / Mark VIe Speedtronic Turbine Control Systems (Simplex/TMR)
- Vibration Probe Channels: 8 channels (seismic, proximity, or MPU)
- Selectable Pull-Up/Pull-Down Channels: 8 channels (jumper-configurable)
- PRxxL Open/Pcom Jumper Channels: 8 channels
- Buffered Outputs: 14 channels (with selectable bias)
- N24 Outputs: 14 channels (24 V DC, 12 mA max per channel)
- MPU Pulse Rate Range: 2 Hz to 20 kHz
- Input Voltage Range (Sensors): 18–32 V DC
- Control Supply Voltage: 28 V DC (N28, 400 mA max)
- Amplitude Accuracy: ±0.1%
- Operating Temperature: -30°C to +65°C (-22°F to +149°F)
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
- Dimensions (H×W×D): 330 mm × 178 mm × 38 mm (13 in × 7 in × 1.5 in)
- Weight: 0.9 kg (2.0 lbs)
- Mounting: DIN-rail or panel mount
- Certifications: CE (EN 61000-6-2), UL 508, CSA C22.2 No.14-13, RoHS
Key Features
- Multi-Sensor Compatibility: Directly interfaces with seismic (velocity), proximity (eddy-current), and magnetic pickup (MPU) sensors for comprehensive vibration and speed monitoring.
- 8-Channel High-Precision Conditioning: Each of the 8 input channels includes dedicated signal filtering, amplification, and surge protection (MOVs and EMI suppression components) to eliminate electrical noise and ensure data integrity.
- Jumper-Configurable I/O: 8 channels feature selectable pull-up/pull-down resistors and PRxxL/Pcom jumpers, enabling flexible adaptation to different sensor types and wiring configurations.
- 14 Buffered Outputs: Provides 14 isolated, buffered outputs for routing vibration signals to the PVIB I/O pack, external monitoring systems (e.g., Bentley Nevada 3500), or data loggers.
- TMR & Simplex Support: Designed for seamless integration into both simplex and triple modular redundant (TMR) Mark VI/VIe systems, ensuring fault tolerance and high availability.
- Industrial-Grade Reliability: Constructed with surface-mount components, conformal coating, and robust terminal blocks to withstand extreme temperatures, vibration, and electrical transients in industrial environments.
- Shield Termination & EMI Protection: Dedicated shield termination points and per-channel EMI filtering minimize electromagnetic interference and ensure compliance with EMC standards.
Application Scenarios
- Power Generation Plants: Deployed in gas turbine, steam turbine, and combined-cycle power plants for critical monitoring of shaft vibration, bearing health, speed, and key phase; enables predictive maintenance and protects against catastrophic equipment failure.
- Oil & Gas Industry: Used in compressor stations, refineries, and offshore platforms to monitor rotating equipment (turbines, compressors, pumps) and ensure operational safety and efficiency.
- Industrial Cogeneration: Applied in industrial facilities with on-site power generation (e.g., chemical plants, steel mills) to maintain reliable turbine operation and comply with strict emissions and safety regulations.
- Process Industries: Utilized in pulp and paper, water treatment, and pharmaceutical plants for monitoring large rotating machinery and ensuring uninterrupted production.
Functional Overview
The IS200TVBAH2ABC acts as the intermediate layer between field sensors and the Mark VI/VIe control system’s PVIB I/O pack. It receives raw vibration, speed, and displacement signals from 8 field sensors, conditions each signal via precision filtering and amplification, and transmits the processed data to the PVIB pack through 14 buffered outputs. The board provides 24 V DC power to sensors via N24 outputs and 28 V DC control power for internal circuitry. Jumper-configurable channels allow engineers to tailor the board’s input/output characteristics to specific sensor models and system requirements. All field connections are made via high-density terminal blocks, which are clearly labeled for easy installation, troubleshooting, and maintenance.
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