Product Description:

The DKR03.1-W200Z-BE34-00 is a digital intelligent AC drive controller developed by Bosch Rexroth Indramat within the DKR Drive Controllers series. Designed for automation tasks such as high-speed machining and heavy material handling, this controller converts three-phase mains power into a precisely regulated output for synchronous or asynchronous servo motors. Its role is to regulate motor current so connected axes can maintain commanded torque and speed during demanding motion cycles. The unit is in Line Series 03 with Design Version 1 and Function Module Version 00, and it is intended for installation inside larger multi-axis cabinets.

During continuous operation at an internal switching frequency of 4 kHz, it can supply 92 A of motor phase current, enabling around 35 kW of mechanical shaft power without thermal derating. Reserve capacity is available for acceleration or shock loads, with a peak limit of 141 A for short-duration demand. The control electronics are energized from a single-phase auxiliary supply of AC 230 V, ±10%, while the main power stage accepts 3xAC 400–480 V, ±10%. The 200 A current rating matches the sizing of the output transistors, bus capacitors, and bus bars used for the specified duty cycle, and the separate auxiliary supply supports stable operation of the control section.

Communication with the motion controller is handled over the SERCOS interface, and the drive processes both digital servo and resolver signals for motor feedback to close the position, speed, and torque loops. This allows the controller to work with common servo feedback arrangements used in industrial motion systems. Thermal energy generated by the switching elements is removed by a built-in air blower system, and the unit produces a total heat dissipation of 1200 W that must be removed from the cabinet. The installed mass is 49 kg, so the mounting hardware must support that load while maintaining stable panel installation.