Product Description:

The DKR02.1-W300B-BE11-02-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat within the DKR Drive Controllers series. Designed for high-power servo axes, the device converts three-phase mains power into regulated motor currents so industrial machinery can follow programmed motion profiles. It belongs to the Digital Intelligent AC Drive Controller product group and communicates through a SERCOS interface, allowing synchronous motion commands and diagnostic data over fiber-optic links. An internal bleeder circuit and brake resistor let the unit manage regenerated energy during rapid stops.

For sustained duty, the drive supplies a continuous current of 141 A at 4 kHz, delivering high torque without thermal overload. This is supported by a continuous power output of about 55 kW at 4 kHz, which indicates the level of mechanical load the drive can support during continuous operation. Logic circuits are fed from an AC 230 V ± 10 % control voltage, separating control power from the main power wiring. Excess heat is expelled by a built-in air blower, so the unit requires unobstructed cabinet airflow. The internal bleeder routes regenerative energy to a brake resistor that can dissipate 1.5 kW continuously and handle up to 240 kWs in single events.

In transient situations, the controller delivers a peak current of 212 A, supporting rapid acceleration or emergency reversal. It accepts a rated power supply of 3×AC 400–480 V ± 10 %, matching common industrial distribution systems. Cabinet thermal design must account for 1800 W of total heat dissipation, and mounting hardware must support the unit’s 104 kg mass. The controller also supports digital servo and resolver feedback channels, and its overall current rating is 300 A. The unit is design version 1 and line series 02.