GE IS200VVIBH1CAC is a vibration monitoring (VVIB) circuit board module specifically designed by General Electric for the Mark VI Speedtronic turbine control system, which is widely used in the management of gas turbines, steam turbines and other industrial turbines. As a core component of the turbine vibration monitoring system, this module is mainly responsible for receiving and processing the analog signals from various vibration probes connected to DVIB or TVIB terminal boards, converting them into digital signals through high-precision analog-to-digital conversion technology, and then transmitting the digitalized data to the central controller via the VME bus for further analysis and processing, so as to realize real-time monitoring and protection of turbine operating status, such as vibration, rotor eccentricity, differential expansion and rotor axial position, ensuring the safe and stable operation of the turbine unit. It supports a variety of probe types and can operate in simplex or triple modular redundant (TMR) mode, providing reliable power supply for the connected probes, and is equipped with LED indicators for real-time status display, with a robust industrial design to adapt to harsh industrial environments.
Core Functional Features
1. Signal Processing and Channel Capacity
- The module can process the signals from up to 14 vibration probes connected to DVIB or TVIB terminal boards, covering multiple key monitoring parameters of the turbine, which is conducive to comprehensive and multi-dimensional monitoring of the turbine's operating status.
- It adopts high-precision analog-to-digital conversion technology to ensure the accuracy and integrity of signal conversion, and can effectively filter out noise in the signals, improving the reliability of monitoring data.
2. Probe Compatibility and Power Supply
- The connected terminal boards support various types of probes provided by Bently Nevada, including seismic probes, proximity probes, velocity probes and acceleration probes, meeting the diverse needs of turbine vibration monitoring.
- It can provide stable power supply for the connected probes in both simplex and TMR modes, ensuring the normal operation of the probes and the continuity of signal acquisition.
3. Communication Interface
- It uses the VME bus as the communication interface to transmit the digitized vibration data to the central controller quickly and efficiently, realizing seamless integration with the Mark VI control system, which is convenient for the controller to carry out centralized data processing, analysis and fault diagnosis.
4. Status Indication and Hardware Design
- The module is equipped with three LED indicators labeled "Fail", "Status" and "Run", which can intuitively display the operating status of the module, facilitating on-site maintenance personnel to quickly judge whether the module is working normally and locate faults in time.
- It has two backplane connectors marked P1 and P2, as well as four additional connectors, which are convenient for connecting with other components in the system and expanding functions.
- The board is coated with conformal coating, which has good anti-corrosion, moisture-proof and dust-proof performance, and can adapt to the harsh working environment in industrial fields, improving the stability and service life of the module.
Application Scenarios
- It is mainly applied in the Mark VI Speedtronic control system of gas turbines and steam turbines, and is suitable for various industrial fields that require turbine vibration monitoring, such as power plants, petrochemical industry, metallurgy, etc.
- It can be used in both small and medium-sized turbine units with simplex control system and large-scale complex turbine units with TMR control system, providing reliable vibration monitoring and protection functions for different types of turbine units, helping to prevent mechanical failures such as imbalance and bearing wear, and reducing the risk of unplanned downtime of the units.
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