GE IS230TVBAH2A Vibration Signal Terminal Board

Technical Specifications

Model: IS230TVBAH2A

Part Number: IS230TVBAH2A，MRP716820

Brand: GE（GE Vernova）

Product Type: TVBA vibration and shaft‑position signal terminal board

Matching System: GE Speedtronic Mark VIe distributed turbine control system, work with PVIB vibration processing pack

Power Supply:24‑28VDC

Input Channels:14‑channel sensor input, support proximity probe, seismic velocity sensor, accelerometer; 1‑channel dedicated Keyphasor tachometer input

Signal Output:Multi‑group BNC buffered test output, rear‑board high‑density connector

Signal Protection:Per‑channel EMI filter and transient surge suppression circuit

Installation:35 mm standard DIN‑rail mounting, S‑style terminal board

Operating Temperature:‑30℃ ~ +65℃, non‑condensing

Protection Class:IP20

Weight:0.75kg

Dimension:225mm ×172mm ×40mm

Compatible System:Power plant gas‑steam turbine, generator unit control cabinet

Core Function：TVBA vibration signal termination terminal board for Mark VIe turbine control system. It serves as field physical interface for vibration, shaft displacement and speed‑phase sensors. Provides sensor excitation power, completes signal filtering, transient suppression and signal buffering. Transmits conditioned vibration, axial‑displacement and Keyphasor phase signals to PVIB processing pack. Supports simplex, dual and TMR triple‑modular redundant architectures, realizes turbo‑generator unit vibration monitoring, bearing health assessment and mechanical fault early warning. Reserved BNC test ports support on‑site debugging and connection to external vibration monitoring instruments.

Product Details

The IS230TVBAH2A (MRP716820) is DIN‑rail type TVBA vibration‑position termination board for GE Mark VIe Speedtronic distributed turbine control system.

This S‑form factor terminal board adopts DIN‑rail installation structure, equipped with barrier‑type screw terminal blocks for field rotating‑machinery sensor wiring. It is compatible with mainstream turbine monitoring sensors, supplies stable excitation power for proximity probes and accelerometers. Built‑in EMI filter and surge‑suppression circuits restrain high‑frequency noise and voltage spikes brought by long‑distance field cables. Multi‑group BNC buffered output ports facilitate field maintenance debugging and access to third‑party monitoring equipment. Conditioned vibration, shaft displacement and Keyphasor speed‑phase signals are sent to PVIB vibration processing pack for high‑precision data calculation, providing core monitoring data for turbine protection interlock and predictive maintenance.

Conformal coated circuit board improves moisture‑proof, dust‑proof, anti‑vibration and anti‑interference performance, adapts to harsh electromagnetic environment of power‑plant turbine hall, meets hazardous‑area application requirements.

It belongs to key vibration monitoring spare‑part for Mark VIe turbine control system, widely used in overhaul and renovation projects of gas‑steam turbine generating units.

It is important spare hardware for turbine vibration‑position measuring loop debugging and defective IS230TVBAH2A board replacement.