Product Description:

The DKR03.1-W200N-BE30-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat and assigned to the DKR Drive Controllers series. Installed between the mains supply and a servo or spindle motor, it shapes three-phase power into regulated output. It supports precise torque, speed, and position control in automated machining, printing, and material-handling equipment. This allows a central control system to command axis motion while the drive closes the electrical and mechanical control loops locally.

The power section accepts 3x AC 400 to 480 V with a tolerance of ±10% and delivers a continuous output current of 92 A at a switching frequency of 4 kHz, which corresponds to approximately 35 kW of mechanical drive capability. Control electronics are energized separately at AC 230 V with a tolerance of ±10%, which helps isolate the logic supply from line disturbances. During rapid acceleration or load shocks, the inverter can furnish a peak of 141 A, and rating code 200 corresponds to the thermal and conductor dimensions that support this overload reserve. Digital servo and resolver feedback channels report motor position so the controller can maintain responsive current, speed, and position regulation. Separate control power also allows monitoring and communication functions to remain stable when the main power stage is subjected to changing load conditions.

Thermal management relies on a built-in air blower, and total power loss is limited to 1200 W to help keep cabinet temperatures under control. Motion commands and status data are exchanged through the SERCOS interface over a fiber-optic link for synchronous axis coordination. The controller weighs 49 kg, so the mounting panel must support a substantial installed load. The design does not include an internal brake chopper or bleeder, so regenerated energy must be handled by an external resistor or a shared drive line. This arrangement is common in shared DC bus systems where braking energy is distributed across connected power modules instead of being dissipated inside the controller. The unit is part of line series 03 with design version 1 and function module version 01.