Basic Information

• Model: IS230TVBAH2A

• Material Code: MRP716820

• Brand/Series: GE General Electric, Speedtronic Mark VIe Turbine Control System, IS230 Series Vibration Input Terminal Board (TVBA)

• Core Purpose: A 13‑channel TMR (Triple Modular Redundant) vibration signal acquisition terminal board, serving as the signal interface for PVIB I/O packs. Designed exclusively for shaft, bearing and gearbox vibration monitoring and Mechanical Integrity Protection (MIP) for gas/steam turbines and combined‑cycle units; core vibration I/O interface module for Mark VIe control systems.

Key Features

1. Multi‑Channel Redundant Acquisition: 13 physical vibration inputs, supporting simplex or TMR architecture with signals distributed to three I/O packs, meeting SIL safety requirements for fault tolerance and uninterrupted monitoring.

2. Multi‑Sensor Compatibility:

   • Proximitor (Displacement Sensors): Supported on all 13 channels for shaft displacement, eccentricity and keyphasor monitoring.

   • Seismic/Velomitor (Velocity Sensors): Supported on channels 1–8.

   • IEPE/ICP Accelerometers: Supported only on channels 1–3, with built‑in signal conditioning and bias detection.

3. High‑Precision Signal Conditioning & Diagnostics: Independent signal chain per channel; built‑in EMI protection, real‑time open/short circuit and bias anomaly diagnostics; current‑limited -24VDC sensor power; configurable differential input and open‑circuit detection via jumpers; communicates with PVIB I/O packs via a 37‑pin high‑speed connector, uploading data to ToolboxST.

4. System Integration & Reliability: Fits Mark VIe standard cabinets, surface‑mount technology, industrial wide‑temperature design; hot‑swap capable for maintenance to ensure continuous unit operation.

Key Specifications

• Input Channels: 13 physical channels (1–8: all sensor types; 9–12: displacement only; 13: displacement/keyphasor)

• Sensor Types: Proximitor, seismic/velomitor, IEPE accelerometer (channels 1–3)

• Power Supply: Current‑limited -24VDC per channel; backplane +28VDC (converted to -28VDC by WNPS)

• Operating Temperature: -30°C to +65°C

• Communication Interface: 37‑pin connector to PVIB I/O packs

• Mounting: Standard VME rack, terminal block wiring (24 terminals, #12 AWG compatible)

• Dimensions: 33.0 cm (H) × 17.8 cm (W), surface‑mount technology

• Certifications: CE, UL 61010-1, FCC Part 15 Class A

Typical Applications