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6SE7090-0XX84-3DB1

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Siemens 6SE7090-0XX84-3DB1 is a SIMOVERT MASTERDRIVES DTI board that conditions electrically isolated HTL or TTL digital tachometer signals for the drive control path.
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Technical specifications for 6SE7090-0XX84-3DB1

  • Manufacturer:
    Siemens
  • Part Number:
    6SE7090-0XX84-3DB1
  • Product Family:
    Siemens SIMOVERT
  • Product Type:
    Digital Tacho Interface Board DTI
  • Stock:
    1
  • TTL Signal Level:
    5 V
  • Encoder level:
    HTL up to 24 V
  • Drive family:
    SIMOVERT MASTERDRIVES
  • TTL Input Connector:
    X401
  • HTL Input Connector:
    X402
  • Control Signal Output:
    X403
  • External Supply Input:
    X404, 24 V DC
  • Weight:
    0.6614 lbs (0.3 kg)
  • Estimated shipping dimensions:
    16x9.8x4.5cm
  • Tariff Code:
    85049090
  • Country of origin:
    Germany
  • 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 Encoder Inputs Drive Output Power & Wiring Commissioning

Features:

  • The DTI board accepts electrically isolated HTL or TTL digital tachometer signals.
  • Dedicated terminal strips separate encoder input, drive output, external supply, and screen grounding.
  • The 3DB1 version extends the X403.6 output range for the documented Compact PLUS connection.
Siemens 6SE7090-0XX84-3DB1 converts the selected tachometer pulse tracks into the feedback path expected by MASTERDRIVES.

Only one encoder input strip on 6SE7090-0XX84-3DB1 is populated for the installed HTL or TTL signal type.

Start-up checks on 6SE7090-0XX84-3DB1 align terminal choice, pulse count, drive parameters, screening, and rotation feedback.

The Siemens 6SE7090-0XX84-3DB1 SIMOVERT MASTERDRIVES Digital Tacho Interface Board may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6SE7090-0XX84-3DB1 SIMOVERT MASTERDRIVES Digital Tacho Interface Board 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.

HTL and TTL Feedback Paths

  • TTL path: X401 receives the 5 V tachometer signals and their required inverse tracks.
  • HTL path: X402 receives the 11 to 30 V tachometer signals and assigned reference connections.
  • Input choice: Only one of X401 or X402 is used for the installed tachometer.
  • Unused inverse tracks: Unused HTL inverse inputs are tied to the documented tachometer reference potential.

Feedback Transfer to MASTERDRIVES

  • X403 role: The board sends the selected pulse tracks toward CU2, CUVC, CUVP, or TSY.
  • X405 role: The separate connector provides the documented TTL output tracks.
  • 3DB1 extension: The wider X403.6 voltage range supports the Compact PLUS connection.
  • Direction check: Pulse-track order and feedback direction are verified before torque-producing operation.

Supply, Screening and Cable Routing

  • External feed: X404 accepts the isolated 24 V DC installation supply.
  • Encoder feed: X404 can provide the documented higher-voltage supply for an HTL tachometer.
  • Screen bonds: X80 and X81 connect the cable screens to the grounding points.
  • Cable separation: Power and control cables are routed separately to reduce feedback interference.

Checks Before Closed-Loop Operation

  • Board combination: The installed TSY, CU2, CUVC, or CUVP path must match the drive configuration.
  • Tachometer type: The encoder voltage level determines whether X401 or X402 is used.
  • Drive parameters: Source selection and encoder pulse count are set in the corresponding MASTERDRIVES parameter group.
  • Safe test: Feedback direction and stability are checked before the drive is released for normal operation.
Description
Siemens 6SE7090-0XX84-3DB1 is a SIMOVERT MASTERDRIVES Digital Tacho Interface board that conditions electrically isolated HTL or TTL encoder signals before the drive control evaluates speed and direction.

Only one encoder input is used on 6SE7090-0XX84-3DB1 at a time: X401 receives TTL signals, while X402 receives HTL signals. The selected pulse tracks leave through X403 for the documented control board or TSY connection, so the input strip and downstream path must describe the same encoder type.

External 24 V DC enters 6SE7090-0XX84-3DB1 at X404 and can supply an HTL tachometer that requires more than 15 V. The X80 and X81 screen connections, together with separation of power and control wiring, protect the feedback path from interference.

Commissioning 6SE7090-0XX84-3DB1 requires the tachometer type, input strip, control-board path, pulse count and feedback direction to agree. The 3DB1 execution extends the voltage range at X403.6 for the documented Compact PLUS connection.
Alternative Names
6SE70900XX843DB1 6SE7090 0XX84 3DB1 Siemens 6SE7090-0XX84-3DB1 DTI 3DB1 6SE7090-0XX84-3DBI 6SE7090-OXX84-3DB1 SIMOVERT DTI 3DB1 MASTERDRIVES Digital Tacho Interface
Technical notes
The extended X403.6 output range lets Siemens 6SE7090-0XX84-3DB1 connect to the documented Compact PLUS control path.
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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.
Can 6SE7090-0XX84-3DB1 be selected by the DTI name alone?
No. Match 6SE7090-0XX84-3DB1 in full, then confirm the encoder level, selected input connector and installed MASTERDRIVES control path.
Why can speed direction be wrong after 6SE7090-0XX84-3DB1 is installed?
For 6SE7090-0XX84-3DB1, reconcile encoder channel order, wiring and mechanical direction before changing drive tuning parameters.
What should be measured before energizing 6SE7090-0XX84-3DB1?
Before energizing 6SE7090-0XX84-3DB1, confirm encoder supply, signal level, connector pinout, shield termination and absence of shorts.
Where should diagnosis begin when 6SE7090-0XX84-3DB1 reports missing feedback?
Begin with the 6SE7090-0XX84-3DB1 connector seating, encoder power, signal amplitude and cable continuity before changing control parameters.
Which input connector should be active on 6SE7090-0XX84-3DB1?
Use X401 on 6SE7090-0XX84-3DB1 for TTL signals or X402 for HTL signals; do not treat both inputs as one combined channel.
When is 6SE7090-0XX84-3DB1 ready for the documented drive test?
Release 6SE7090-0XX84-3DB1 only after feedback direction, speed scaling, low-speed response and the applicable drive protections pass the approved test sequence.