Product Overview

Siemens 6SE7090-0XX84-3DB1 is the DTI digital-tacho interface board for the SIMOVERT MASTERDRIVES platform. Siemens identifies the board as a spare part for HTL-level digital-tacho signals up to 24 V. Official operating documentation assigns X403 to CU2, CUVC, CUVP or TSY connection, X404 to an external 24 V supply and X405 to TTL signal output. The interface handles pulse tracks A and B together with monitoring-related signals. Replacement planning must verify the exact suffix, control-unit type, tacho signal level, connector pinout, external supply arrangement, drive parameters and installed-board revision rather than relying on a visually similar board.

Commercial Status

Condition, availability and warranty are Stockoems commercial information, not manufacturer commitments.

Verified Technical Data

Product Photo Evidence

 

 

 

 

 

 

System Fit and Applications

Compatibility and Procurement Checks

• Match the full 6SE7090-0XX84-3DB1 order number and board revision.
• Confirm the digital-tacho signal is HTL level up to 24 V.
• Verify the installed control unit and X403 connection requirements.
• Review X404 external 24 V supply wiring and X405 TTL output use.
• Compare pulse-track wiring, monitoring signals and connector pinout.
• Back up and review relevant drive parameters before replacement.
• Request label, connector and packaging photographs before shipment.

Lifecycle Note

Siemens SiePortal lists 6SE7090-0XX84-3DB1 as Prod. Discont.; the lifecycle is presented here as Discontinued. This conclusion applies only to the exact order number. Board revision, control-unit interface, wiring and drive parameters must still be verified.

Frequently Asked Questions