Product Description:

The DKR03.1-W200Z-BE11-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat within the DKR Drive Controllers series. Designed to command synchronous and induction servomotors in industrial automation, the unit converts three-phase power and executes motion profiles through closed-loop regulation. It links to feedback devices such as digital servo encoders and resolvers to maintain precise torque and speed, making it suitable for multi-axis machine tools and handling systems. This control structure allows the drive to respond consistently during acceleration, deceleration, and steady-state operation under changing load conditions.

The drive accepts a rated power bus input of 3xAC 400 ... 480 V, ±10%, while its internal electronics run from a control supply of AC 230 V, ±10%. Separating these inputs allows the control logic to remain active during main power interruptions so communication and internal processing can continue. When switched at 4 kHz, the power stage delivers a continuous armature current of 92 A, translating to about 35 kW of usable shaft power for the connected motor set. This continuous output supports sustained motor demand without immediate thermal derating. Thermal modeling indicates a steady heat release of 1200 W, so cabinet ventilation must accommodate this load. The current rating code 200 is used for the power section in this variant.

Peak demand events such as rapid accelerations can be supplied with up to 141 A, giving machines a brief torque reserve without exceeding semiconductor limits. Motion commands travel over the deterministic SERCOS interface, and cooling is provided by a built-in air blower so no external liquid circuit is required. This cooling method moves heat through the enclosure with forced airflow and supports stable operation during high-load cycles. Mechanical installation is influenced by the approximate mass of 49 kg, so the mounting structure must support the controller securely. The housing is listed as line series number 03 with design version 1 and function module version 01, and motor feedback signals are sampled through the controller’s digital channels for closed-loop regulation.