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          Active / Available from OEM
          For IS420PVIBH1B availability and current pricing, Apter Power also provides access to official General Electric vibration-monitor documentation for project review.

        IS420PVIBH1B

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        General Electric IS420PVIBH1B is a Mark VIe control vibration monitor module that collects vibration, position, and phase-reference signals for turbine machinery protection.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for IS420PVIBH1B

        • Manufacturer:
          General Electric
        • Part Number:
          IS420PVIBH1B
        • Product Family:
          GE Mark VIe Distributed I/O
        • Product Type:
          Mark VIe control vibration monitor module
        • Stock:
          1
        • Electronics Platform:
          BPPC processor with BBAA I/O board
        • Sensor Channels:
          13 total measurement inputs
        • Vibration Inputs:
          8 channels
        • Position Inputs:
          4 channels
        • Phase Reference:
          1 Keyphasor channel
        • I/O Networks:
          Dual 100BaseTX Ethernet paths
        • Terminal Board:
          IS400TVBAH2B for current installations
        • Legacy Terminal Hardware:
          IS200TVBAH2A with IS200WNPSH1A or IS400WNPSH1A
        • Probe Supply:
          Negative supply integrated on IS400TVBAH2B
        • Minimum ControlST:
          Version 06.01
        • Mixed or Online Firmware:
          Version 5.01 or later
        • Redundancy:
          Simplex or TMR
        • Configuration Functions:
          Channel filtering and GAP processing
        • Hazardous-Location Rating:
          Ex nA IIC T4 Gc
        • Operating Ambient:
          -40 to +70°C for the certified assembly
        • Tariff Code:
          8538900000
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Upgrade Planning Channel Use Signal Review Applications

        Features:

        • Electronic identification helps the control system confirm that the connected terminal-board arrangement is suitable before signal processing begins.
        • Network-path conditions can be reviewed separately from probe and channel diagnostics, helping maintenance teams narrow the source of an abnormal reading.
        • Configurable filtering and GAP processing support stable presentation of rotor and bearing measurements to the controller.
        During commissioning, engineers can map each sensor to its intended monitoring point and confirm that the phase-reference input agrees with the machine train.

        For troubleshooting, the diagnostic structure helps distinguish a field-probe issue, a terminal-board connection problem, and an IONet communication condition before hardware is exchanged.

        Trend and alarm data from the module can support planned inspection of rotating equipment as part of planned rotating-equipment maintenance.

        Apter Power offers pricing assistance for the General Electric IS420PVIBH1B Mark VIe control vibration monitor module.
        General Electric IS420PVIBH1B Mark VIe control vibration monitor module Manuals, Datasheets, LinksImportant Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        Preparing an IS420PVIBH1B transition

        • Installed-base survey: Record the existing PVIB pack, terminal-board revision, negative-supply hardware, and controller software before defining the change scope.
        • Outage preparation: Stage the required control software and approved firmware before the maintenance window rather than treating the hardware exchange as a stand-alone swap.
        • TMR coordination: For redundant installations, plan how the three packs will be updated and validated while preserving the channel assignment.
        • Return-to-service check: Complete loop, alarm, and phase-reference verification after the transition before releasing machinery protection.

        Measurement allocation

        • Bearing vibration: Assign radial vibration probes according to the machine drawing so paired measurements remain associated with the correct bearing.
        • Axial position: Preserve thrust-position polarity and alarm direction when wiring or replacing position channels.
        • Phase reference: Confirm the Keyphasor or speed-reference pulse is stable across the operating range used for synchronous analysis.
        • Probe bias: Review GAP or bias values before accepting a vibration channel whose dynamic reading appears normal.
        • Channel records: Retain the original point names, scaling, and alarm ownership when transferring configuration to replacement hardware.

        Interpreting vibration and reference channels

        • Noise investigation: Compare raw behavior, configured filtering, grounding, and cable routing before attributing an unstable value to the I/O pack.
        • Reference quality: A missing or irregular phase pulse can affect speed-related and phase-synchronous calculations even when vibration amplitudes remain visible.
        • Bias interpretation: Probe-gap movement may indicate wiring, target, or probe-position changes that should be resolved before alarm limits are adjusted.
        • Trend comparison: Compare commissioning baselines with current values to identify gradual machine or sensor changes rather than relying on one snapshot.
        • Alarm validation: Exercise the approved test path and verify controller indication after channel maintenance.

        Machinery uses supported by IS420PVIBH1B

        • Turbine bearing monitoring: Radial probe signals support observation of shaft vibration at configured bearing locations.
        • Rotor axial-position supervision: Position channels can track thrust movement where the protection design assigns appropriate probes and limits.
        • Phase-synchronous analysis: The phase-reference channel supports vibration interpretation relative to shaft rotation.
        • Machinery protection decisions: Condition signals can participate in the engineered alarm and trip strategy implemented in the Mark VIe system.
        Description
        Thirteen vibration, position, and phase-reference channels are concentrated in the General Electric IS420PVIBH1B Mark VIe Vibration Monitor Module. The assembly combines the processor pack with its acquisition circuitry so vibration data can be conditioned, digitized, and delivered to the controller through redundant Ethernet paths.

        The input set of IS420PVIBH1B covers eight vibration channels, four position channels, and one keyphasor channel. Integrated negative sensor power supports compatible probes, while channel filtering, gain, and gap-related parameters allow the module to adapt the incoming signals to the monitored machine and sensor arrangement.

        The IS420PVIBH1B field path uses a TVBA terminal board as its primary interface; approved legacy arrangements can use the approved TVBA and WNPS hardware. Because the terminal-board code and sensor type determine wiring and power relationships, a replacement should preserve those connections rather than copying only the processor-pack label.

        Before returning IS420PVIBH1B to service, verify both Ethernet links, dc supply, sensor polarity, channel mapping, and the compatible ControlST and firmware levels. Reviewing live gap values and diagnostics before enabling protection logic helps separate a probe or cable issue from a failed acquisition path.
        Revisions

        Revision Part #

        Also known as

        IS420PVIBH1B
        IS420PVIBH1-B, Series B, Rev B
        Get Parts Quote
        Alternative Names
        GE IS420PVIBH1B IS420PVIBH1B PVIB Mark VIe PVIB module IS420PVIBH1-B PVIBH1B vibration pack GE BPPC vibration monitor IS420 PVIB H1B Mark VIe vibration I/O
        Technical notes
        The IS400TVBAH2B terminal board integrates the negative probe supply used by General Electric IS420PVIBH1B, eliminating the separate WNPS daughterboard.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Can General Electric IS420PVIBH1B directly replace IS220PVIBH1A?
        General Electric IS420PVIBH1B is the GE-listed available replacement path, but first confirm ControlST 06.01 or later, terminal hardware, firmware, filtering, and the installed redundancy scheme.
        Does General Electric IS420PVIBH1B always require a separate WNPS daughterboard?
        No. General Electric IS420PVIBH1B uses the integrated negative probe supply on IS400TVBAH2B; older TVBAH2A arrangements require the approved WNPS hardware.
        Can General Electric IS420PVIBH1B be mixed with older packs in a TMR set?
        General Electric IS420PVIBH1B may be used in a reviewed mixed or online arrangement only when the required firmware level and configuration restrictions are satisfied across the set.
        Why is a General Electric IS420PVIBH1B vibration channel noisy or unstable?
        For General Electric IS420PVIBH1B, check probe bias, gap, polarity, shielding, terminal continuity, channel filtering, and nearby wiring before replacing the pack.
        What should be checked when the Keyphasor input is missing on General Electric IS420PVIBH1B?
        Verify the dedicated phase-reference probe, pulse amplitude, wiring, terminal assignment, speed range, and diagnostic status for General Electric IS420PVIBH1B.
        Which terminal board should be ordered with General Electric IS420PVIBH1B?
        Use the approved IS400TVBAH2B path for General Electric IS420PVIBH1B unless site engineering has verified a supported legacy TVBA/WNPS arrangement.
        What tests are needed after installing General Electric IS420PVIBH1B?
        After fitting General Electric IS420PVIBH1B, restore channel settings, run probe and loop checks, compare live vibration and position values, verify alarms, and clear diagnostics.

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