Product Description:

The DKC01.1-040-3-FW drive controller is manufactured by Bosch Rexroth Indramat and belongs to the DKC Drive Controllers series. Intended for EcoDrive-based motion platforms, the unit converts DC-bus power into controlled three-phase output for synchronous and induction motors, enabling closed-loop velocity and positioning in assembly, packaging, and handling equipment. It is supplied in design 1 with interface option 01, so fieldbus or analog wiring layouts remain standard across the EcoDrive line.

The controller has a continuous output capacity of 40 A, so connected servo loads must stay within this current limit. Its DC link operates at 300 V, providing the intermediate energy store for dynamic acceleration and regenerative braking. The speed command channel accepts a differential analog reference of ±10 V, and this range fits most PLC motion cards for bidirectional velocity demand. The reference is digitized by a 12-bit converter, giving 4,096 discrete speed steps for fine regulation. To maintain signal fidelity across machines, the analog velocity cable can be routed up to 20 m from the controller without exceeding noise-immunity limits.

For signal monitoring, the unit offers a virtual oscilloscope output with a resolution of 78 mV, making internal variables observable on standard voltmeters or data loggers. Closed-loop accuracy depends on the velocity feedback channel’s quantization step of 4.8 mV, which is the smallest change the controller can detect in the incoming analog signal. Control loops react quickly, and confirmation of a new positional setpoint is issued within 14 ms to support high-throughput indexing tables. Temperature-related drift on the speed input is limited to 18 µV/°C, so speed commands remain stable even when the cabinet warms during prolonged duty cycles.