Product Description:

The DKR02.1-W200Z-BE12-01-FW is a digital drive controller from Bosch Rexroth Indramat in the DKR Drive Controllers series. As a digital intelligent AC drive controller, it manages power flow between the cabinet supply and a connected servo motor to support closed-loop velocity and torque regulation in gantries, printing lines, and material-handling stations. Its control structure also lets the axis respond quickly to load changes while maintaining stable motion during repeated industrial cycles.

The unit communicates with the motion-control host over a SERCOS interface, so time-synchronized setpoints and diagnostic data move across a fiber-optic link at deterministic intervals. At a switching frequency of 4 kHz, the power stage can deliver a continuous armature current of 120 A, which corresponds to a sustained mechanical output of 47 kW when used with a compatible Indramat servo motor. Internal logic and I/O are supported by a control supply of AC 230 V ±10%, which is isolated from the main power feed. Thermal energy generated by the IGBTs is removed by a built-in air blower, helping keep internal components within their operating range. For rapid acceleration or short overload events, the drive can raise output to a peak of 141 A while remaining in linear control.

Line power arrives on 3 x AC 400 to 480 V ±10%, giving the DC link the headroom needed for high-speed applications while fitting standard factory mains distribution. During rated operation, the controller dissipates about 1600 W of heat, so cabinet airflow must be sized for a constant thermal load. The mechanical frame weighs about 104 kg and includes a hinged blower assembly with coded plug-in modules for straightforward access during service. Adequate mounting support is required because the enclosure combines high current capability with a substantial installed mass.