Product Description:

The DKR02.1-W300N-BE56-01-FW is an intelligent AC drive controller manufactured by Bosch Rexroth Indramat as part of the DKR Drive Controllers series. It manages high-power three-phase servo axes in automated machinery, coordinating torque and speed commands while protecting the DC bus. By interfacing with motion processors, it supplies regulated current to field-oriented motor windings and serves as the central actuator in gantries, presses, or packaging lines.

For closed-loop performance, the unit exchanges cyclic data over the SERCOS interface, allowing deterministic command and status telegrams. Under continuous operation at 4 kHz PWM, the inverter can deliver 141 A, which corresponds to about 55 kW of mechanical output when paired with matched motors. Logic circuits and contactors are energized by a separate AC 230 V control supply so the control section can remain active without energizing the high-power stage. The main power section accepts a three-phase input of 3 x AC 400 to 480 V, enabling installation on standard plant distribution networks that tolerate plus or minus 10% variation. Digital servo and resolver feedback channels, a rigid DC bus without a brake chopper, the current rating of 300, and the line, design, and function module identifiers (02-1-01) make up the hardware configuration.

Dynamic peaks such as acceleration or shock loads are handled by up to 212 A before current limiting engages. Internal components dissipate approximately 1800 W of loss, and a built-in air blower directs this heat out of the cabinet without external ducts. Installation weight is approximately 104 kg, so hoisting points are provided on the housing. The absence of a bleeder lets regenerated energy remain on the DC link for immediate reuse, which lowers wiring complexity and improves energy efficiency while the drive maintains command precision for multi-axis industrial equipment.