Product Description:

The DKR03.1-W100N-BE67-01-FW is a digital intelligent AC drive controller produced by Bosch Rexroth Indramat for the DKR Drive Controllers series. The module serves as the power and control interface between a plant's supply network and high-performance servo or spindle motors used in industrial automation. Its function is to deliver regulated three-phase output, process feedback signals, and exchange motion commands with a host control system so that axes can accelerate, brake, or hold position according to programmed sequences. This makes the unit suitable for coordinated motion tasks that require both controlled power delivery and closed-loop response.

For fieldbus connectivity, the drive incorporates a SERCOS interface, allowing deterministic command and diagnostic traffic over fiber-optic links. The power stage is energized from 3 x AC 400–480 V mains, and the auxiliary circuit accepts AC 230 V control voltage, both with a tolerance of ±10%. At a switching frequency of 4 kHz, the inverter can deliver 71 A of continuous current, which corresponds to about 26 kW of sustained mechanical output when used with matching motors. Digital servo and resolver feedback channels provide position and velocity data to the internal processor, and the controller belongs to current rating code 100, Line 03, design version 1, and function module version 01.

Thermal management is handled by air cooling with a built-in blower, and the unit produces 900 W of heat dissipation that must be removed from the cabinet. The drive has no brake chopper, so regenerative energy must be routed to an external supply path or absorbed elsewhere in the connected drive system. Total installed mass is 49 kg, which should be considered when the controller is mounted in a multi-axis rack alongside other DKR modules. The cooling arrangement and cabinet heat load should be considered together when planning enclosure airflow and mounting space.