Product Description:

The DKR05.2-W350N-BA01-01-B1NN-FW is an AC drive controller manufactured by Bosch Rexroth Indramat and placed within the DKR Drive Controllers series. It belongs to the Digital Intelligent AC Drive Controller group and regulates high-power synchronous or induction motors used in machining centers and material-handling axes. In this role, it converts cabinet-level electrical power into controlled motor output for demanding, continuously regulated axis systems. Its floor-standing format suits larger installations where power conversion and heat removal are handled inside a dedicated enclosure. Version 2 uses Line 05 electronics in a cabinet that can be secured with a 3 mm two-way key lock for controlled front-door access.

During operation, the controller delivers a nominal motor current of 350 A, enabling it to supply up to 115 kW of mechanical output at 400 V. Thermal losses at that load are removed by a built-in air blower, and the internal heat sink must dissipate about 4.5 kW of power. Motion commands are received through an analog interface, while motor feedback closes the control loop for speed and position regulation. The unit uses function module 01 with version 01. A door-mounted main switch is omitted, so line isolation must be provided elsewhere in the cabinet. That arrangement fits systems in which the main disconnect is installed as a separate cabinet component.

Because the power section is linked to a rigid DC bus, excess regenerative energy must be handled externally, which suits applications that do not rely on frequent dynamic braking. Position data returns through digital servo and resolver feedback, giving the drive accurate speed and position information across different motor configurations. The enclosure weighs 500 kg and is finished in light gray paint that matches common industrial cabinet layouts. Its mass reflects the size of the power section, the cooling path, and the floor-standing cabinet structure. This format is intended for high-power installations where the controller remains a fixed part of the machine electrical system.