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      Pepperl + Fuchs HD2-DM-B
      Pepperl + Fuchs HD2-DM-B

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      FieldConnex Basic Diagnostic Module

      HD2-DM-B

      Spare Part Number

      PNHD2-DM-B

      Product Information:

      Pepperl+Fuchs HD2-DM-B is a basic diagnostic plug-in module for FieldConnex motherboard-based fieldbus power hubs.

      It monitors primary and secondary bulk power, power-supply health and four segment conditions, with green power LEDs, a red fault LED and a normally closed VFC alarm contact.

      The module requires no application engineering, supports Zone 2 or Class I Division 2 installations and must be mounted on a compatible Power Hub motherboard.

      Product image is representative; revision or series may vary. Contact us to request a specific version.
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      • One-year warranty
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      Technical specifications for

      HD2-DM-B

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        Pepperl + Fuchs
      • Product Category:
        DCS Systems
      • Spare Part Number:
        HD2-DM-B
      • Estimated shipping dimensions:
        12.8 x 10.6 x 1.8 cm
      • Weight:
        0.07 kg
      • Tariff Code:
        853890
      • Country of origin:
        Germany
      • Place of shipment:
        Xiamen, Fujian, China
      • Rated voltage:
        19.2 to 35 V DC
      • Rated current:
        20 mA
      • Power dissipation:
        Maximum 0.5 W
      • Segments monitored:
        4
      • Fault contact:
        VFC alarm, 1 A at 50 V DC, normally closed
      • Indicators:
        PRI PWR, SEC PWR, ERR LEDs
      • Degree of protection:
        IP20
      • Operating temperature:
        -40 to +70 °C
      • Storage temperature:
        -40 to +85 °C
      • Relative humidity:
        Below 95%, non-condensing
      • Shock resistance:
        15 g, 11 ms
      • Vibration resistance:
        1 g, 10 to 150 Hz
      • Stock Availability:
        27
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      Alternative Names

      HD2-DM-B HD2-DM-A HD2-DM-A.RO

      Information

      Overview Manuals Monitoring Functions Indicator Interpretation Installation Guidance

      Features:

      • Plug-in diagnostic module for FieldConnex Power Hub
      • Monitors bulk supplies, trunks and installed power modules
      • LED indication for primary power, secondary power and error
      • Voltage-free normally closed alarm contact rated 1 A at 50 V DC

      The Pepperl+Fuchs HD2-DM-B provides basic physical-layer monitoring for a four-segment FieldConnex Power Hub. It checks primary and secondary bulk power, trunk overload or short-circuit conditions and the health of installed power modules, including mismatched redundant pairs.

      The module works as a plug-and-play monitoring device without additional engineering. Its LED indicators localize power and error states, while a voltage-free alarm contact transfers the common fault condition to the control or maintenance system.

      The Pepperl+Fuchs HD2-DM-B remains documented for supported FOUNDATION Fieldbus H1 and PROFIBUS PA Power Hub systems.
      Pepperl+Fuchs HD2-DM-B FieldConnex Basic Diagnostic Module Manuals(Datasheets), Link Important 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.

      Monitoring Functions:

      • Primary bulk-supply supervision
      • Secondary bulk-supply supervision
      • Trunk overload and short-circuit detection
      • Redundant power-module mismatch detection

      Online diagnostics provide a quick indication of Power Hub health without interrupting the fieldbus segment.

      Indicator Interpretation:

      • PRI PWR green for primary supply
      • SEC PWR green for secondary supply
      • ERR red flashes for power or redundancy fault
      • Alarm contact is normally closed

      Use the LED combination together with the alarm contact and field wiring checks to isolate a supply, trunk or module fault.

      Installation Guidance:

      • Motherboard plug-in mounting
      • Rated supply 19.2 to 35 V
      • Operating range -40 to +70 °C
      • Zone 2 / Class I, Division 2

      Install only on a compatible FieldConnex motherboard, observe hazardous-area certificates and confirm the enclosure provides the required environmental protection.

      Technical notes

      Pepperl+Fuchs HD2-DM-B is a FieldConnex Basic Diagnostic Module in the FieldConnex Power Hub family. It monitors primary and secondary bulk power, power-supply health and four segment conditions, with green power LEDs, a red fault LED and a normally closed VFC alarm contact. Confirm the complete catalog number, compatible system hardware, wiring, environmental limits and lifecycle status against the manufacturer documentation before installation.
      PRODUCT & ORDER FAQS

      Questions buyers ask about HD2-DM-B

      • How can I identify HD2-DM-B?

        Verify the complete catalog number HD2-DM-B on the product label and compare the documented HD2-DM-B diagnostic module code before installation.

      • What is HD2-DM-B compatible with?

        It plugs into compatible FieldConnex Power Hub motherboards and monitors four fieldbus power segments.

      • Where is HD2-DM-B typically used?

        It provides online basic power-supply, redundancy and segment fault diagnostics for FOUNDATION Fieldbus H1 and PROFIBUS PA.

      • What should be checked before installation?

        Confirm the mounting, wiring, supply, environmental limits and system firmware stated in the official documentation for HD2-DM-B.

      • Is HD2-DM-B available from stock?

        Stock is confirmed at the time of quotation. Moore Automated can check the exact HD2-DM-B revision and configuration before shipment.

      • What warranty is provided?

        Warranty terms are confirmed with the quotation and apply to the supplied HD2-DM-B hardware after inspection and functional verification.

      • How is HD2-DM-B shipped?

        The unit is securely packed and dispatched from Xiamen, Fujian, China, with fast shipment available and an estimated processing time of 3 days.
      All FAQ
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          Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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