The 6SL3544‑0FB21‑1FA0 is the CU240D‑2 DP‑F control unit for SINAMICS G120D distributed drives. Snap it onto a PM250D power module and you have an IP65‑rated drive that can be mounted right next to the motor, eliminating long, shielded motor cables and freeing up control cabinet space. With dual PROFIBUS DP and PROFINET IO communication, it fits into new and legacy automation networks without hardware changes.

Safety and Communication

• Integrated STO: Safe Torque Off (SIL 2) is built into the control unit – no extra safety relay needed in many applications.
• Dual‑protocol interface: one port supports both PROFIBUS DP and PROFINET IO, selectable by parameter. Perfect for migration scenarios.
• Robust design: sealed against dust and water jets (IP65), rated for operation from ‑20 °C to 60 °C.

I/O and Connectivity

• 6 digital inputs (including one fail‑safe), 2 digital outputs, 1 analog input, 1 analog output.
• PTC/KTY motor temperature sensor input.
• USB and SD/MMC slot for fast commissioning and parameter cloning.

Technical Specifications