Product Description:

The DKR03.1-W100N-BA03-01-FW drive controller is manufactured by Bosch Rexroth Indramat and belongs to the DKR Drive Controllers series. It converts motion commands from PLC or CNC equipment into regulated three-phase power that governs the connected servo or main-spindle motor. By managing torque, speed, and position in real time, the unit acts as the primary actuator interface for machining centers, automated assembly cells, and material-handling lines where precise, repeatable motion is required. It is suited to applications where the drive must respond quickly to changing load conditions while maintaining stable axis control.

Motion references enter through an Analog interface, so ±10 V or 0 to 20 mA signals can be wired directly from standard control hardware. Because the command input is analog, the controller can connect to legacy control platforms that do not use a fieldbus motion interface. Heat produced by the IGBT power stage is removed with a built-in air blower, allowing installation in sealed cabinets without external ducting. The power section uses a rigid DC bus without a bleeder or brake chopper; therefore, regenerated energy must be dissipated by an external resistor or returned to the plant supply. Position and velocity are monitored via digital servo and resolver feedback, letting the controller process either incremental encoder pulses or resolver voltages for commutation and diagnostics. The feedback options give the controller flexibility across servo axes and spindle duties that use different feedback devices.

This unit carries design revision 1, so its circuit boards and terminal patterns follow the first release. Application behavior is set by Function numeric code 03, and compatibility with option cards and parameter files uses Function numeric version 01. All configuration data is organized under the DKR product line, so diagnostic software can recognize the controller within the same module group. These identifiers also separate this controller version from other function combinations in the same platform.