Siemens 6SL3040-1MA00-0AA0 Drive Control Unit

Siemens SINAMICS S120 Control Unit CU320-2 DP, model 6SL3040-1MA00-0AA0, is a PROFIBUS-DP-enabled control unit for SINAMICS S120 drives. This version is CU320-2 DP with PROFIBUS interface and is sold without a CompactFlash card. It operates from a 24 V DC electronics supply (20.4–28.8 V range), drawing up to 1.0 A and consuming about 24 W of power. The unit supports DRIVE-CLiQ connectivity with a maximum cable length of 100 meters, enabling reliable high‑speed interconnects to other drive components. Its enclosure measures 50 mm in width, 300 mm in height, and 226 mm in depth, making it suitable for standard 19" automation cabinets or compact control rooms. As part of the SINAMICS S120 family, the CU320-2 DP coordinates control and communication for the drive modules, providing PROFIBUS DP networking for centralized monitoring and control in automated systems that require robust fieldbus connectivity. This model does not include onboard CompactFlash storage, with configuration data managed through external media or controller interfaces per Siemens documentation.