Product Description:

The DKC11.3-200-7-NW drive controller is produced by Bosch Rexroth Indramat and belongs to the DKC Drive Controllers series. It is installed between the AC mains and the servo motor, converting incoming supply power into controlled DC bus energy and pulse-width-modulated output for axis regulation. Within an automation cell, the unit supplies current, monitors feedback, and exchanges diagnostic data with the motion CPU. This operating role makes it suitable for packaging lines, material-handling gantries, and machine-tool feed drives that require coordinated torque and speed control.

The controller operates on a DC link with a nominal voltage of 700 V, which provides an internal energy reservoir for rapid acceleration and regenerative braking. During continuous operation, it can deliver a rated output current of 200 A, allowing it to drive large-torque motors without saturation. The mains side draws up to 38 A under full load, a value used for fusing and cable sizing. Thermal calculations must include a steady heat loss of 960 W, so cabinet ventilation must remove that heat to keep semiconductor temperatures within acceptable limits. Its mass of 19.5 kg affects mechanical installation, and the mounting panel must support that load in vertical enclosures. These electrical and thermal characteristics suit applications with repeated acceleration, deceleration, and sustained servo duty.

The unit uses design code 3, indicating the third mechanical and electronic revision. Communication and encoder wiring route through Interface Option 11, which includes the standardized SERCOS fiber channel for deterministic drive networking. The controller maintains full output up to an ambient temperature of 45 °C; above that point, derating is required. As an EcoDrive model, it supports four-quadrant operation without external braking resistors. This allows the drive to handle motoring and braking in both rotational directions during reversing moves and controlled deceleration.