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Product Overview
The GE IS220PVIBH1A is a Vibration Monitor I/O Pack, commonly designated as PVIB, for the GE Mark VIe turbine control platform. It provides the electrical interface between the vibration terminal board and one or two I/O Ethernet networks while acquiring vibration, proximity, and rotor-position signals from connected sensors. GE documentation identifies the H1A version as a 13-channel vibration monitor with specific sensor assignments that differ from later H1B hardware. Supported inputs include accelerometers, proximitors, Velomitors, seismic sensors, and Keyphasor-related measurements. The unit is designed for turbine-generator, compressor, and pump monitoring applications where accurate machinery condition data is required by the control system. It can operate with simplex or TMR vibration architectures when paired with compatible TVBA terminal boards.
Technical Specifications — IS220PVIBH1A
| Parameter | Value |
|---|---|
| Product Model | IS220PVIBH1A |
| Manufacturer | General Electric (GE) |
| Product Type | Vibration Monitor I/O Pack |
| Series | Mark VIe |
| Functional Acronym | PVIB |
| Processor | BPPB |
| Application Boards | BAFA / KAPA |
| Input Channels | 13 |
| Supported Sensors | Accelerometer, Proximitor, Velomitor, seismic, Keyphasor |
| Probe Power | -24 VDC, 12 mA per transducer |
| Ethernet | Dual 10/100 Ethernet capability |
| Frame Rates | 3.125, 6.25, 12.5, 25, 50, 100 Hz |
| Operating Temperature | -30 to +65 °C |
| Compatible Terminal Board | TVBA |
| Dimensions | Approx. 3.25 × 1.65 × 4.78 in |
| Weight | Approx. 1 lb / 0.45 kg |
| Mounting | Direct installation on compatible terminal board |
Specifications are compiled from GE documentation and established industrial automation references. The H1A version has channel-specific sensor limitations that should be checked before replacement.
GE IS220PVIBH1A
Key Features and Benefits — IS220PVIBH1A
- 13-channel vibration and proximity signal acquisition.
- Supports rotating-equipment monitoring for turbines, compressors, generators, and pumps.
- Dual Ethernet architecture can provide network-path redundancy at applicable frame rates.
- Compatible with TVBA vibration terminal boards in simplex and TMR configurations.
- Four front-panel status indicators support basic operating and network diagnostics.
- Internal temperature monitoring, watchdog functionality, and hardware reset circuitry support pack-level diagnostics.
Personally, I would pay particular attention to the H1A revision when replacing this unit. Later PVIB revisions are not necessarily a direct firmware or hardware match; GE documentation specifically identifies differences in processor hardware, application boards, sensor-channel assignments, and supported Ethernet operation.
Related Models
IS220PVIBH1B — Later PVIB hardware revision using the BPPC processor architecture, with expanded capabilities compared with H1A.
IS420PVIBH1B — A later Mark VIe vibration I/O pack commonly identified as the replacement generation for earlier PVIB hardware.
TVBAH1A — Vibration terminal board without buffered outputs, compatible with the PVIB architecture.
TVBAH2A — Vibration terminal board version providing buffered outputs and associated field connections.
GE IS220PVIBH1A
Installation and Maintenance — IS220PVIBH1A
Before replacement, verify the exact PVIB revision, terminal-board type, firmware compatibility, sensor assignments, and Ethernet configuration. Power should be isolated according to the site procedure before removing the I/O pack.
Inspect the terminal-board connector, grounding, field wiring, and network connections for physical damage or contamination. After installation, confirm power-up diagnostics, Ethernet link status, sensor input values, and configured channel mapping. For turbine protection applications, complete the approved functional verification before returning the equipment to operation.
Product Warranty — IS220PVIBH1A
Warranty coverage depends on supplier condition and sales terms. For procurement, confirm whether the unit is new, refurbished, or surplus and request serial-number traceability, inspection or test records, and the applicable warranty period.
The GE IS220PVIBH1A remains a specialized Mark VIe vibration-monitoring component, so exact revision matching is more important than simply finding another GE PVIB unit with the same general function.
