Product Description:

The DKR02.1-W200Z-BE43-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat for the DKR Drive Controllers series. It governs high-power synchronous and induction motors used in gantry systems, printing presses, and metal-cutting centers, providing coordinated velocity and torque control across multiple axes. As a stand-alone cabinet module, it converts motion commands from upper-level PLC platforms into regulated three-phase power for the connected motor set, supporting high throughput and repeatable positioning on automated production lines. Its control structure is suited to applications that require stable motion under changing load conditions during continuous industrial operation.

Communication with the motion master is handled through the SERCOS interface, which offers deterministic fiber-optic data exchange for setpoints and diagnostics. At a 4 kHz switching frequency, the power stage maintains a continuous output of 120 A, translating to roughly 47 kW of mechanical power. Internal components are cooled by a built-in air blower that directs airflow across the heat sink and stabilizes semiconductor temperature during sustained operation. For short acceleration bursts, the inverter delivers up to 141 A peak current while preserving control accuracy. It connects to plant mains rated at 3x AC 400 to 480 V, ±10%, so it can be supplied from common industrial power networks without an intermediate transformer.

The feedback stage accepts digital servo and resolver feedback, allowing one controller type to interface with legacy resolver motors and modern encoder-equipped motors. Power losses from switching and control electronics reach 1600 W, which must be considered when planning cabinet heat removal. Control electronics are isolated by a separate supply of AC 230 V, ±10%, which helps keep the logic section stable if the main power section fluctuates. With a mass of 104 kg, the unit requires a rigid panel mount, and its built-in diagnostics help identify operating states and fault conditions after installation.