The R911263426 (DDS02.1-W100-DG04-00) is an industrial drive controller featuring a modular design with plug-in spaces U1-U5 for software and auxiliary modules. Its housing provides ingress protection against objects larger than 50 mm. The device utilizes digital servo feedback and operates with a rated current of 100 A. Electrical connection to the motor is established via separate power and feedback cables to minimize interference. The controller maintains internal temperature through natural convection and requires installation that enables unobstructed airflow.