Product Description:

The DKR03.1-W200N-BE45-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. Within an automation cell, this unit delivers closed-loop speed and torque control to high-power servo motors. It allows coordinated motion axes to follow programmed profiles while maintaining diagnostic communication with higher-level PLCs during operation. This control approach suits demanding axis applications that require stable response under changing loads.

The drive operates from a control supply of AC 230 V (±10%) and draws its main power from a three-phase supply rated at 3 x AC 400–480 V (±10%). At a 4 kHz switching frequency, it can supply a continuous armature current of 92 A, corresponding to an output of 35 kW for sustained duty, while short bursts can reach a peak of 141 A for rapid acceleration demands. The internal current rating index is 200, which indicates the permissible RMS loading used for protective sizing of cables and fuses. Resolver or digital incremental feedback from the connected motor is processed in real time so the controller can regulate vector quantities precisely within these electrical limits.

An integrated cooling channel uses a built-in air blower to remove thermal losses, and the assembly rejects 1200 W of heat to the surrounding cabinet atmosphere during continuous operation. The unit is built without a brake chopper, so regenerated energy is returned to the mains when overhauling loads occur. Communication with the motion network is handled through a SERCOS interface, and the unit is in line 03 with function module version 01 and design version 1. Digital servo and resolver feedback channels are available on the same control board, and the installation mass is limited to 49 kg, which helps keep panel structural requirements moderate.