Product Description:

The DKC03.3-200-7-FW is a digital drive controller built by Bosch Rexroth Indramat and positioned within the DKC Drive Controllers series. Classified by the manufacturer as an EcoDrive unit, it regulates servo motor speed and torque inside automated packaging lines, material-handling axes, and robotic joints. By converting the incoming DC link energy into controlled three-phase output, the controller closes the motion loop between the PLC and the mechanical load.

To manage system logic, the controller needs a control voltage of 24 V DC; this low-power rail isolates the internal electronics from the high-energy bus and keeps parameter memory and diagnostic LEDs active even when the main stage is disabled. During operation the power stage draws up to 38 A from the supply, and it can deliver a continuous motor phase current of 200 A, allowing it to drive large synchronous or induction servomotors without saturation. For high-speed positioning tasks the unit supports output frequencies to 1000 Hz, translating to fine velocity resolution across a wide motor speed range. Its inverter topology can raise the phase voltage to 800 V, matching long-stator machines or motors with higher back-EMF constants while remaining within insulation limits.

The internal capacitor bank operates on a DC link nominal value of 700 V; maintaining this level ensures energy is recycled during regenerative braking rather than dissipated as heat. Upstream protection is provided by a branch fuse rated at 70 A, so panel builders can size conductors and disconnect devices accordingly. Logic sections consume only 29 W, which simplifies cabinet ventilation and lets the device share 24 V power with sensors. Despite its 230 mm width, 261 mm depth, and 360 mm height, installation weight remains a manageable 19.5 kg, facilitating single-person mounting on densely populated backplates once the bus is de-energized.