Product Description:

The DKR02.1-W200Z-BE32-01-FW is an AC drive controller built by Bosch Rexroth Indramat for the DKR Drive Controllers series. As a Digital Intelligent AC Drive Controller, it coordinates large servo motors in multi-axis machining centers, presses, and handling equipment by regulating current and voltage in real time for accurate speed and torque response. The unit belongs to line series 02 and is delivered in design version 1 with function module version 01, placing it within the SERCOS-based motion platform used by related controllers in this product line.

This part uses the SERCOS interface as its command link. It accepts a rated three-phase supply of 400–480 V ±10% and, at a 4 kHz switching frequency, can deliver a continuous output current of 120 A. The supply range suits common industrial mains, and the switching rate supports stable current control in high-power servo systems. That output corresponds to about 47 kW of continuous mechanical power for connected motors, while a peak current capacity of 141 A supports short acceleration bursts without saturation. Under the stated thermal loss conditions, the controller dissipates 1600 W through its enclosure. The current rating code 200 identifies its size within the series and distinguishes it from lower-current models.

Auxiliary electronics are supplied from a control circuit of 230 V AC ±10%. A built-in air blower forces air through the heat sink fins, so this cooling method does not require cabinet water loops. Position and velocity loops are closed with digital servo and resolver feedback, and motion instructions arrive through the SERCOS channel. This arrangement supports closed-loop axis operation without a separate external feedback module. Despite its high power density, the assembly weighs 104 kg, so lifting support is required during cabinet installation.