For users migrating to M580 or M340 PLCs, the TeSys U can be configured via Modbus TCP with Control Expert’s DTM (Device Type Manager). However, this requires a full PLC ecosystem.

To understand the SFT2841, one must first understand the (Universal) motor starter. The TeSys U is a compact, all-in-one solution combining short-circuit protection, overload protection, and contactor functionality. However, to unlock its advanced features—such as thermal adjustment, current metering, or trip logs—you need a communication interface.

Since Schneider no longer distributes the SFT2841, users rely on:

The is a critical software tool designed for the setup and operation of the Sepam series of protection relays (Series 20, 40, 60, and 80).

Upgrading installations can utilize their historic serial number.

The primary tab of the software focuses on protection parameters. Engineers can set thresholds (pickup values), time delays (tripping times), and operating curves (such as IEC standard inverse time curves). The software validates inputs in real-time, ensuring that an engineer cannot input a value that is physically impossible or unsafe for the specific hardware model connected.

Connects a laptop directly to the front-panel port of a single Sepam relay to transfer, verify, and live-modify protection thresholds.

Perhaps the most powerful feature within SFT2841 is the Logic Editor. This feature allows users to customize the behavior of the relay inputs and outputs without rewiring the physical connections.