Siemens 6SE6400-7AA00-0BA0 Variable Frequency Drive

Siemens 6SE6400-7AA00-0BA0 MICROMASTER 440 VECTOR I/O MODULE is a digital I/O interface accessory for the MICROMASTER MM4 drive family. This I/O module is designed to work with MICROMASTER 410/420/430/440 vector drives to provide additional digital inputs and outputs for control circuitry, enabling external sensors, switches, and actuators to be integrated into a drive‑controlled automation setup. The part number 6SE6400-7AA00-0BA0 identifies this vector I/O module as part of Siemens’ MM4 architecture, and distributor listings consistently label it as MICROMASTER 440 VECTOR I/O MODULE. By expanding the MM4’s I/O footprint, it supports more complex automation sequences without needing to replace the drive’s core controller. Typical applications include connecting digital sensors, limit switches, and actuators to a MICROMASTER MM4 system in industrial environments where precise control and synchronization of multiple devices is required. The MM4 vector I/O module sits within the drive’s control topology to facilitate scalable, configurable I/O for motion and process control tasks. Overall, this part serves as a dedicated I/O expansion for integrated automation solutions built around Siemens MICROMASTER 440 drives.