Product Description:

The DKR02.1-W200B-BE33-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. It manages high-power spindle and positioning axes in industrial automation, converting command data into regulated motor torque. A built-in bleeder safely dissipates regenerative energy, and the unit is classified as a digital intelligent AC drive controller. This arrangement combines power conversion, feedback processing, and closed-loop control in one housing for machine tools and material-handling systems that require accurate motion under changing loads.

The drive communicates over a SERCOS interface, so real-time commands and parameter data travel on a fiber-optic ring. With a 4 kHz switching frequency, the inverter supplies a continuous phase current of 120 A, while its brake resistor dissipates up to 1.5 kW. Logic electronics operate from AC 230 V control power with a tolerance of ±10 percent. Cooling is provided by a built-in air blower, supporting total heat dissipation of 1600 W. The unit also carries a 200 A current rating and uses line series 02, design version 1, and function module version 01, while motor position data are processed through digital servo and resolver feedback channels.

On the power side, the controller delivers about 47 kW of continuous mechanical output at the same carrier frequency and can reach a peak phase current of 141 A during acceleration. The integrated brake resistor absorbs up to 240 kWs of kinetic energy to protect the DC link during deceleration. Mains connection is specified for 3×AC 400–480 V with a tolerance of ±10 percent, matching common industrial supplies. Despite these ratings, the housing weighs 104 kg, which supports cabinet installation with standard lifting equipment. Such output and braking capability are useful on high-power axes that alternate between steady operation and rapid deceleration.