Product Description:

The DKR05.1-W400N-BA01-01-FW is an AC drive controller manufactured by Bosch Rexroth Indramat and assigned to the DKR Drive Controllers series. Within an automation cell, this unit supplies regulated three-phase power to large servo and torque motors while coordinating motion through high-speed control loops. Classified as a digital intelligent AC drive controller, it combines power conversion with closed-loop regulation so that machinery axes can accelerate, hold velocity, or decelerate under programmable command. This Line 05, Version 1 controller is intended for applications that require stable motor control and repeatable axis response.

The drive uses an analog interface for setpoint and diagnostic signals, making it compatible with legacy PLC hardware. At a PWM switching frequency of 4 kHz, the controller can deliver a continuous armature current of 210 A, which corresponds to sustained motor output near 93 kW. Short-term overload is supported by a peak current limit of 282 A, allowing the unit to handle temporary demand increases during acceleration. Thermal management uses air cooling with a built-in blower that moves process air across the heat sink. Under full load, the electronics and power stage release up to 2500 W of heat into the cabinet, and the current rating code 400 corresponds to the power section size used for high-inertia applications.

The housing weighs 150 kg, so suitable lifting equipment is needed during panel installation. The DC bus operates without a brake chopper, which means external dynamic braking resistors cannot be connected and regenerated energy is returned to the supply line. Motion feedback from the motor is accepted through digital servo and resolver feedback, allowing either high-resolution encoders or rugged resolver transducers on the same axis. Function module 01 and module version 01 coordinate these feedback channels with the analog command path so current control remains stable during operation.