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      Siemens 6SE7090-0XX84-3DB1
      Siemens 6SE7090-0XX84-3DB1

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      DTI digital tachometer interface board

      6SE7090-0XX84-3DB1

      Spare Part Number

      PN6SE7090-0XX84-3DB0

      Product Information:

      The Siemens 6SE7090-0XX84-3DB1 is a DTI digital tachometer interface board for SIMOVERT MASTERDRIVES. It accepts HTL or TTL encoder feedback, provides conditioned tachometer signals to the drive-control hardware, and adds the extended X403.6 output-voltage range required for Compact PLUS connection.

      Product image is representative; revision or series may vary. Contact us to request a specific version.
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        • PRODUCT OVERVIEW

          What is this product?

          The Siemens 6SE7090-0XX84-3DB1 is a DTI digital tachometer interface board for SIMOVERT MASTERDRIVES. It accepts HTL or TTL encoder feedback, provides conditioned tachometer signals to the drive-control hardware, and adds the extended X403.6 output-voltage range required for Compact PLUS connection. Siemens identifies 6SE7090-0XX84-3DB1 as the compatible successor to 6SE7090-0XX84-3DB0. Only one input terminal strip, X401 or X402, may be connected at a time, and the encoder type, supply, pulse count and drive parameters must be recorded before replacement.

          Extended feedback interface

          The 3DB1 version retains the documented DTI function and extends the X403.6 output-voltage range so the board can also connect to Compact PLUS hardware.
        • APPLICATIONS

          Where it may be used

          Use this board only in a documented SIMOVERT MASTERDRIVES feedback arrangement whose controller, slot, encoder signal level, external supply, grounding and parameter set match the DTI interface.

          Digital encoder feedback

          Conditions pulse-track signals used for closed-loop speed feedback in a documented MASTERDRIVES installation.

          Compact PLUS renewal

          Restores a DTI position that requires the 3DB1 extended X403.6 voltage capability.

          Speed-loop restoration

          Returns encoder feedback to a legacy drive after signal level, pulse count and controller parameters are verified.

          Drive service stock

          Provides an exact successor board for planned maintenance of an identified SIMOVERT feedback channel.
      Technical specifications for

      6SE7090-0XX84-3DB1

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        Siemens
      • Product Category:
        Inverter Drives
      • Spare Part Number:
        6SE7090-0XX84-3DB0
      • Product family:
        SIMOVERT MASTERDRIVES
      • Board designation:
        DTI digital tachometer interface
      • Documented predecessor:
        6SE7090-0XX84-3DB0
      • Encoder signal types:
        HTL and TTL digital tachometers
      • Internal supply:
        15 V DC, 160 mA
      • External supply:
        24 V DC, -16% / +25%
      • External supply current:
        300 mA with HTL; 150 mA with TTL
      • Maximum encoder load:
        300 mA HTL; 400 mA TTL
      • Encoder input current:
        12 mA HTL; 42 mA TTL
      • Output driver current:
        15 mA HTL; 20 mA TTL
      • Digital limit frequency:
        400 kHz
      • Input terminal choice:
        Use X401 or X402, not both
      • External-feed terminal:
        X404
      • Tachometer output:
        X403
      • TTL output:
        X405
      • Grounding points:
        X80 and X81
      • Operating temperature:
        0 to +55 °C
      • Storage temperature:
        -25 to +70 °C
      • Environmental classes:
        3K3 humidity; 3C2 pollutant exposure
      • Protection rating:
        IP00
      • Board dimensions:
        160 × 96 × 56 mm for 3DB1
      • Stock Availability:
        3
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      Alternative Names

      6SE7090-0XX84-3DB0 6SE70900XX843DB1 6SE7090 0XX84 3DB1 6SE7 090-0XX84-3DB1

      Information

      Overview Manuals DTI Inputs X403 Output Drive Setup

      Features:

      • HTL and TTL digital tachometer signal handling
      • 400 kHz published digital-signal limit frequency
      • Compatible successor to the earlier 3DB0 DTI board
      The Siemens 6SE7090-0XX84-3DB1 is a DTI digital tachometer interface board for SIMOVERT MASTERDRIVES. It accepts HTL or TTL encoder feedback, provides conditioned tachometer signals to the drive-control hardware, and adds the extended X403.6 output-voltage range required for Compact PLUS connection.

      Manufacturer reference: Siemens operating instructions 6SE7087-6CX84-3DB0, November 2006, for the SIMOVERT MASTERDRIVES Digital Tachometer Interface

      Exact-model verification and sourcing support are available for 6SE7090-0XX84-3DB1.
      Siemens 6SE7090-0XX84-3DB1 official documentation and relevant product resources, 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.

      Connect only the documented HTL or TTL feedback source. X401 and X402 are alternative input terminal strips and must not be populated together; preserve the pulse-track polarity, shield and encoder supply arrangement.

      The 3DB1 successor provides the extended voltage range at X403.6. Confirm the destination controller, signal level and external 24 V supply before using this output with Compact PLUS equipment.

      Restore the approved encoder pulse count, actual-speed source and board-slot parameters for the installed SIMOVERT controller. Verify live feedback and direction before enabling the speed loop.

      Technical notes

      The Siemens 6SE7090-0XX84-3DB1 is a DTI digital tachometer interface board for SIMOVERT MASTERDRIVES. It accepts HTL or TTL encoder feedback, provides conditioned tachometer signals to the drive-control hardware, and adds the extended X403.6 output-voltage range required for Compact PLUS connection. Manufacturer reference: Siemens operating instructions 6SE7087-6CX84-3DB0, November 2006, for the SIMOVERT MASTERDRIVES Digital Tachometer Interface Record whether the existing feedback device is HTL or TTL, its pulse count, signal polarity, supply source, cable shield and the terminal strip in use. Do not infer these settings from the board number alone. Siemens documents 6SE7090-0XX84-3DB1 as the compatible successor to 6SE7090-0XX84-3DB0. The added X403.6 voltage capability does not remove the need to confirm controller type, slot and parameterization.

      Encoder Signal Check

      Record whether the existing feedback device is HTL or TTL, its pulse count, signal polarity, supply source, cable shield and the terminal strip in use. Do not infer these settings from the board number alone.

      Successor Board Match

      Siemens documents 6SE7090-0XX84-3DB1 as the compatible successor to 6SE7090-0XX84-3DB0. The added X403.6 voltage capability does not remove the need to confirm controller type, slot and parameterization.

      Customs & shipping dimensions / weight

      • Packed shipping dimensions
        Confirmed after final packing
        Board dimensions: 160 × 96 × 56 mm for 3DB1 (Siemens instructions).
      • Packed shipping weight
        Confirmed after final packing
        Confirmed from actual-item weighing.
      • HS / customs code
        Preliminary HS heading 8538.90
        Based on the documented drive-interface-board function; confirm the destination-country tariff code before shipment.
      • Country of origin
        Not officially confirmed
        Verify from the item nameplate or COO.
      • Ships from
        Xiamen, Fujian, China
        Dispatch location is confirmed in the written quotation.
      • Customs documents
        Confirmed for the destination
        Available document scope is stated in the written quotation.
      PRODUCT & ORDER FAQS

      Questions buyers ask about 6SE7090-0XX84-3DB1

      • What does the 6SE7090-0XX84-3DB1 board do?

        It is the Siemens DTI interface that conditions digital tachometer feedback for a SIMOVERT MASTERDRIVES control arrangement.

      • Does 3DB1 replace the earlier 3DB0 DTI board?

        Yes. Siemens describes 6SE7090-0XX84-3DB1 as the compatible successor to 6SE7090-0XX84-3DB0 and identifies the extended X403.6 voltage range as the additional function.

      • Can X401 and X402 be wired at the same time?

        No. The Siemens instructions state that only one of the two input terminal strips, X401 or X402, may be used.

      • Which encoder signal types are documented for the DTI?

        The board documentation covers HTL and TTL digital tachometers. The selected input, current demand, supply and wiring must match the installed encoder.

      • What is the maximum digital-signal frequency?

        Siemens publishes a limit frequency of 400 kHz for the digital signals.

      • Why is an external 24 V supply sometimes required?

        The DTI can use an external 24 V DC supply for the encoder and interface arrangement. Potential separation, protection and grounding must follow the official circuit diagram.

      • Which parameters should be saved before changing the DTI board?

        Record the actual-speed source, encoder pulse count, board slot, controller type and all related drive parameters before isolating the system.

      • What physical checks are needed before commissioning 3DB1?

        Verify the exact order number, connector condition, terminal assignment, X80/X81 grounding, shield termination and 160 × 96 × 56 mm board envelope before testing feedback direction.
      All FAQ
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          • Documented DTI Successor

            Documented DTI Successor

            Siemens documents 3DB1 as the compatible successor to the earlier 3DB0 DTI board. Supplied condition, revision and included terminal hardware are confirmed in the written quotation.

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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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