SPECIFICATIONS
Part No.: IS420PVIBH1BB
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Common Mode Voltage: Min 5 V dc
Size: 8.26 cm high x 4.19 cm wide x 12.1 cm deep
Technology: Surface-mount
Probes: 13
Product Type: Vibration Monitor Pack
Availability: In Stock
Series: Mark VIe
Functional Description
IS420PVIBH1BB is a Vibration Monitor Pack developed by GE. It is a part of the Mark VIe control system. This I/O module is specifically designed to monitor and analyze vibration signals from rotating machinery, ensuring real-time condition monitoring and early fault detection. The PVIB pack integrates advanced electronics and signal processing capabilities to deliver high-resolution vibration data, helping operators maintain system reliability, improve performance, and reduce downtime in critical industrial environments such as gas turbines, steam turbines, compressors, and generators.
Features and Capabilities
- Precision Data Acquisition: The acquisition board is designed to handle high-speed, high-accuracy data collection from vibration sensors. It directly interfaces with a variety of transducers, including accelerometers, velocity probes, and proximity sensors — capturing raw vibration data essential for monitoring mechanical health. This ensures that every vibration signal is measured precisely, filtered, and transmitted without distortion, supporting reliable performance analytics.
- Advanced Signal Processing with Daughterboard: A dedicated daughterboard enhances the pack’s vibration monitoring capabilities by managing specialized signal conditioning, filtering, and diagnostic computations. This additional processing layer enables the PVIB pack to detect subtle vibration changes, identify imbalances, misalignments, or bearing wear, and support predictive maintenance strategies. The combination of the acquisition board and daughterboard ensures accurate, real-time vibration analysis under demanding industrial conditions.
- Compatibility with Multiple Sensor Types: Supports a broad range of vibration and proximity sensors, offering versatile monitoring options for different types of rotating equipment. Each channel can be configured based on the sensor type and signal characteristics, ensuring optimal data acquisition for diverse applications such as turbines, pumps, compressors, and motors.
- Dedicated Channels for Enhanced Accuracy: The pack provides dedicated input channels, each optimized for specific sensor types and functions. This design reduces cross-talk and signal interference, ensuring high-quality vibration data for accurate diagnostics. Reliable data acquisition is critical for condition-based maintenance programs and enhances overall plant safety and operational efficiency.
- Ethernet-Based Communication: Communication and the vibration terminal board are established through a redundant Ethernet network, a hallmark of the Mark VIe system architecture. This Ethernet-based approach provides flexible system design, faster data transmission, and seamless integration with the plant’s distributed control and monitoring systems. It also simplifies maintenance and system expansion, supporting connectivity standards.
Sensor Interface and Channels
- Channels 1 through 8: These versatile channels can read data from several types of sensors, including:
- Proximitors: Sensors that measure the distance to a target object, often used for monitoring the position of rotating machinery.
- Accelerometers with Integrated Output (Channels 1-3 only): Sensors that measure acceleration and are equipped with built-in signal conditioning for direct interface with the PVIB pack.
- Velomitors: Devices that measure velocity, typically used in applications where velocity data is critical for vibration analysis.
- Seismic Sensors: Sensors that detect ground or structural vibrations, often used in applications where detecting and analyzing seismic activity is essential.
- Channels 9 through 12: These channels are dedicated to reading data from proximity. The focused functionality ensures optimized performance for proximity measurements.
- Channel 13: This versatile channel can accept either a Keyphasor signal-type or a proximity-type signal:
- Keyphasor Signals: Reference signals generated by a transducer that monitors the rotational position of a machine's shaft. These signals are crucial for phase analysis and determining the rotational speed of machinery.
- Proximity-Type Signals: Similar to the signals read by proximitors, these measure the distance to a target object, providing essential data for position monitoring.
Status LEDs
- Green LED, PWR: The green LED labeled PWR indicates the presence of control power. When this LED is lit, it confirms that the pack is receiving the necessary power to operate. This is a simple yet essential indicator that the system is powered and ready for operation.
- Red LED, ATTN: The red LED labeled ATTN is used to indicate the status of the PVIB pack. This LED provides more detailed information through different lighting patterns, each representing a specific condition of the pack:
- LED Out: When the red LED is not lit, it signifies that there are no detectable problems with the pack. This indicates that the pack is operating normally and no immediate action is required.
- LED Solid On: A solid red LED indicates the presence of a critical fault that prevents the pack from operating. Critical faults could include detected hardware failures on the processor or acquisition boards, or the absence of application code. In such cases, immediate troubleshooting is necessary to identify and rectify the hardware issue or to ensure that the appropriate application code is loaded.
- LED Flashing Quickly (1/4 Cycle): A quickly flashing red LED, at a rate of one-quarter cycle, signals an alarm condition within the pack. This could be due to several reasons, such as installing the wrong pack on the terminal board, the absence of the terminal board, or errors encountered while loading the application code. Operators should verify that the correct pack is installed, ensure that the terminal board is present, and check for any application code loading errors.
- LED Flashing at Medium Speed (3/4 Cycle): When the red LED flashes at a medium speed, or three-quarters cycle, it indicates that the pack is not online. This could be due to network issues or configuration problems. Operators need to investigate network connections and configurations to bring the pack online and ensure proper communication and functionality.
- LED Flashing Slowly (2 Cycle): A slowly flashing red LED, at a rate of two cycles, indicates that the pack has received a request to flash the LED to draw attention to the pack. This is commonly used during factory tests or to confirm the physical location of the pack against the settings in the ToolboxST application. This feature aids in identifying the pack during setup or maintenance activities.
The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS420PVIBH1BB?
It is a vibration monitor pack developed by GE under the Mark VIe series.
What is the purpose of the power-up self-test in the PVIB?
The power-up self-test is designed to verify the functionality and integrity of critical components in the pack. This test ensures that the pack is ready for operation by checking various hardware and memory elements before the system begins normal operation.
Why is continuous monitoring of internal power supplies important?
Continuous monitoring of internal power supplies is vital to ensure that the pack operates correctly and reliably. This monitoring helps detect any anomalies or failures in the power supply, which could lead to malfunctions or damage to the pack and connected equipment. By constantly checking the internal power supplies, the system can promptly alert operators to any issues, allowing for quick corrective action.
How does the pack notify operators of power supply issues?
If the continuous monitoring system detects a problem with the internal power supplies, it will typically trigger an alarm or fault condition. This is often indicated by the red ATTN LED on the pack, which may flash or remain solid depending on the nature of the issue. This visual indicator helps operators quickly identify and address power supply problems.
