Overview
Configured for vibration signal termination and probe interfacing in the GE Mark VI turbine control system, the GE IS200TVIBH2B (IS200TVIBH2B Vibration Input Terminal Board) provides field connections between vibration probes and the VVIB vibration processor. It supports Bently Nevada probe types including Proximitor, Seismic, Accelerometer, and Velomitor devices.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200TVIBH2B |
| Brand | General Electric |
| Series | Mark VI |
| Product Type | Vibration Input Terminal Board |
| Origin | USA |
| Weight | 0.84 kg |
| Dimensions | 33 x 17.8 x 4.5 cm |
| Operating Temp | 0 to 60 deg C |
| Input Voltage | 24 V DC (+/-10%) |
| Power Consumption | <=15 W |
| Channel Count | 13 channels |
| Proximity Probe Range | 0-10 kHz |
| Accelerometer Range | Up to 20 kHz |
| IEPE Sensor Excitation | Typically 18-24 V DC |
| Analog Input | +/-10 V peak |
| Processor Interface | VVIB vibration processor |
| Compatible Probe Types | Proximitor, Seismic, Accelerometer, Velomitor |
The TVIB board terminates vibration probe wiring and passes the probe signals to the VVIB processor. The VVIB performs signal conversion and sends processed data through the VME bus to the Mark VI controller.
Mark VI Vibration Signal Interface
The IS200TVIBH2B supports several vibration sensor types through configurable field connections. Jumpers on the board provide probe-type configuration for the applicable input channels. The documented jumper selections include Proximitor, Seismic, Velomitor, and Accelerometer configurations.
The board also provides dedicated interfaces for Bently Nevada vibration equipment and buffered probe outputs for portable data-gathering equipment. Therefore, technicians can access vibration signals without changing the primary field termination.
For Mark VI architectures, the TVIB interface connects to VVIB vibration processor boards. The processor then digitizes the incoming vibration signals and transfers the resulting data through the VME bus. Simplex and TMR system arrangements are supported at the VVIB processing level.
Frequently Asked Questions
Q: What is the primary function of the IS200TVIBH2B?
A: It provides field termination and signal interfacing for vibration probes used with the Mark VI VVIB vibration processing system.
Q: Which probe types can the TVIB interface support?
A: The documented interface supports Proximitor, Seismic, Velomitor, and Accelerometer probes supplied by Bently Nevada.
Q: Does the TVIB board perform the main vibration signal processing?
A: No. The TVIB provides the field interface, while the VVIB processor performs signal conversion and transfers the processed data through the VME bus.
Field Installation Guidelines
Install the IS200TVIBH2B in the designated Mark VI control cabinet location and secure the board according to the system mechanical arrangement.
Before wiring, verify the board model, terminal assignments, probe types, and associated VVIB processor configuration. Follow the Mark VI system wiring documentation for each channel.
Route vibration signal wiring separately from high-current power conductors and switching circuits where practical. Maintain cable shielding and grounding practices specified by the system design.
Check probe polarity, signal, common, and excitation connections before applying power. Do not change probe-selection jumpers while the circuit is energized.
After installation, verify the probe supply, signal continuity, and channel status through the associated VVIB and Mark VI controller diagnostics.
