Product Description:

The Bosch Rexroth Indramat DKR03.1-W100N-BE37-01-FW is a drive controller in the DKR Drive Controllers series. It serves as the central inverter for multi-axis industrial machinery, converting incoming line power into regulated bus energy and delivering controlled output to connected servo motors. Within an automation cell, the unit handles torque control, processes motor feedback, and links motion sequences to higher-level PLCs for repeatable operation in packaging, metal-forming, and material-handling equipment. Its role is to combine power conversion and closed-loop motion control in systems that require coordinated response across several axes.

I/O communication is provided through a fiber-optic SERCOS interface, permitting deterministic 2 ms telegram cycles. The controller supplies a continuous phase current of 71 A at a 4 kHz switching frequency when it operates from the rigid DC bus. Internal logic is powered by AC 230 V ±10%, while the power section accepts 3×AC 400 … 480 V ±10% at the input. Heat generated by the IGBTs is removed by a built-in air blower, so the unit does not require a liquid cooling circuit. The separate control and power inputs support standard industrial installation and stable regulation of the drive stage during operation.

With about 26 kW of continuous shaft power available at 4 kHz, the drive can support high-inertia loads while staying within a thermal loss limit of 900 W. Position and speed control can use digital servo and resolver feedback, allowing compatibility with different motor feedback systems in both established and updated machine layouts. The housing weighs 49 kg, which suits fixed cabinet mounting and gives the unit a substantial mechanical presence once it is secured to the panel. This feedback flexibility allows one controller platform to support a wider range of motor connections without changing the basic drive function.