KDA 2.1-050-3-DYD-W1

The KDA 2.1-050-3-DYD-W1 from Bosch Rexroth Indramat is a high-performance member of the KDA Spindle Drives series designed for demanding industrial automation environments. This advanced Digital Servo Drive delivers a Rated Input Voltage of 3 × 220–230/400–460 V AC (±10%) and a continuous Rated Output Current of 50 A, making it ideal for main spindle and C-axis control applications. Encased in a robust IP20 enclosure, the unit maintains a compact footprint of approximately Dimensions 500 mm × 300 mm × 220 mm and weighs around Weight 25 kg. Featuring integrated overload protection and a DC bus voltage of DC Bus Voltage 300 V, this drive provides both reliability and consistent performance across a wide range of industrial processes.

Technical excellence is demonstrated through versatile Communication Interface options, including SERCOS, analog, and digital I/O, enabling seamless connectivity with modern control systems. The drive supports Feedback Device Supported resolver or encoder feedback and includes an Aux. Encoder Input with auxiliary and synchronous inputs for enhanced position accuracy. A dedicated Speed Command Value input via a 16-bit parallel digital interface allows precise speed regulation, while the programmable ramp generator accommodates smooth acceleration and deceleration profiles. With a Rated Frequency of 50/60 Hz and an overload capacity of Overload Capacity 300% for one second, the unit excels in handling rapid load fluctuations and transient conditions without compromising stability.

Operational reliability is enhanced by a Cooling Method based on forced air circulation, designated by code W1, which maintains optimal component temperatures even under continuous high-load operation. The built-in thermal monitoring system ensures prompt response to overtemperature events, triggering automatic cut-off to protect the power stage and DC bus. Diagnostic capabilities include voltage monitoring and multicolor LED indicators for real-time fault detection, simplifying maintenance and minimizing downtime. Panel Mounting provisions guarantee secure installation in cabinet environments, and the drive’s durable construction delivers long-term service life with minimal variation in Rated Output Power under varying load conditions.

Designed for straightforward integration, the KDA 2.1-050-3-DYD-W1 seamlessly interfaces with Bosch Rexroth Indramat controllers and third-party automation platforms via its comprehensive communication suite. Compatible with 2AD series spindle motors, this drive supports both master and slave configurations in multi-axis installations, expanding its versatility across CNC machines, milling centers, and grinding systems. Its compact design and standardized mounting dimensions facilitate rapid system upgrades and retrofits without extensive cabinet rework. Overall, the unit’s combination of precision feedback, robust protection, and advanced control features makes it a versatile solution for modern industrial spindle drive applications.