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GE IS200VVIBH1C
Product Name: Mark VI VVIB Vibration Input & Monitoring Board
Product Description: A VME-based machinery protection processor that powers Bently Nevada proximity probes and accelerometers, digitizes shaft vibration, eccentricity, axial position, and bearing signals for Mark VI turbine diagnostics and trips.
Detailed content
Technical Specifications:
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Channels: 14 differential inputs (expandable to 26 via TVIB/DVIB)
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Probe Power: -28 V DC diode high-select, 12 mA current-limited
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ADC: 12-bit (16-bit raw, 14-bit effective), 4.6 kHz sample rate
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Accuracy: 0.1 % amplitude
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Filters: Programmable 2-8 pole LP/HP/BP
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Isolation: 1500 V rms field-logic, 500 V channel-channel
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Temperature: -20 °C to +70 °C conformal-coatedFunctional Features: Peak-to-peak displacement, velocity, 1X/2X keyphasor tracking, API-670 compliant alarms, TMR ready.Structural Characteristics: 96-pin VME edge, two 50-pin ribbons to terminal boards, -28 V diode selector, FPGA peak detect.Working Principle: Probe AC signal → conditioned → 4.6 kHz ADC → FPGA peak window 160 ms → EU-scaled values over VME every 100 ms.Installation Requirements: Match white-stripe ribbon to TVIB-1 silk-screen, never reverse -28 V to logic header, use shielded probe cable grounded at terminal.Usage Notes: Wrong ribbon mapping injects -28 V into 3.3 V FPGA; recalibration not needed after swap but probe gap must be unchanged.
