Description

The IS200TVBAH2ACC operates as a high-performance vibration input terminal board developed by General Electric for deployment within the Mark VIe Speedtronic turbine control platform. This terminal board acquires real-time seismic, proximitor, velomiter, and accelerometer sensor feedback from dynamic gas, steam, and wind turbine drive assemblies. Optimized for machinery protection loops, the IS200TVBAH2ACC implements individual channel signal suppression and electromagnetic interference (EMI) filtering parameters to isolate sensitive processing elements from transient field disruptions.

Rather than relying on common instrumentation power supplies, the IS200TVBAH2ACC obtains operational stability directly from external +28 V sources, leveraging three onboard removable daughterboards to achieve critical +28 V to -28 V voltage conversion locally. The circuit card hosts standard terminal blocks paired alongside a dedicated high-density cable connector network to streamline the delivery of buffered dynamic vibration wave vectors directly into the downstream I/O processor framework.

Features

• Flexible Transducer Interfacing: Accommodates multiple industrial measurement elements, specifically accepting proximitor, seismic, velomiter, and accelerometer transducer variations.
• Onboard Negative Voltage Inversion: Integrates three modular, field-removable daughterboards that internally convert +28 V to -28 V to fully sustain transducer power requirements.
• Transient Signal Filtering: Delivers dedicated surge suppression and EMI noise defense boundaries uniquely matched across each sensor channel track.
• High-Density Monitoring Interface: Features dual integrated terminal blocks, supporting 14 dynamic sensor inputs through a total of 24 independent field terminals.
• Buffered Diagnostic Outputs: Provisions 14 individual N24 buffered sensor outputs alongside specialized multi-pin output plugs for Bently-Nevada analytical machinery instruments.
• Conformal Coating Insulation: Protected by a precise, thin conformal coating formulation that comprehensively seals traces against corrosive ambient plant humidity.

Applications

• Mark VIe Speedtronic dynamic turbine vibration monitoring systems
• Critical turbo-machinery shaft displacement and overspeed safety loops
• Real-time predictive maintenance tracking within automated wind, steam, and gas turbine drive assemblies

Technical Specifications

Installation Guidelines

• Shield Termination Grounding: Fasten the primary field cables firmly to the dedicated shield termination attachment point on the board frame to suppress induced electromagnetic or radio frequency noise.
• Power Loop Configuration: Verify that the primary external +28 V source supplies remain functional and stable to power the voltage inversion daughterboard cards, maintaining regular TVIB board interaction profiles.
• Electrostatic Grounding Measures: Ensure the system service engineer wears a path-to-ground ESD wrist strap during the removal or replacement of the negative voltage daughterboard modules to avoid circuit overstress.