Product Description:

The DKS01.1-W050A-DL01-00-FW is a digital servo drive created by Bosch Rexroth Indramat for the DKS Intelligent Digital Servo Drives series. It converts three-phase mains power and control references into regulated motor currents so automated axes can accelerate, brake, and hold position under closed-loop control. In industrial automation, this drive sits between the motion controller and the servomotor, supplying voltage, interpreting feedback, and enforcing current limits to keep packaging, handling, or printing equipment within commanded motion profiles.

Electrically, the unit accepts 3 x 230 V AC through a three-phase power connection and can deliver a continuous phase current of 50 A, while the input side reaches 25 A at maximum load. A rectifier and capacitor bank generate a DC-link voltage of 300 V, which the inverter chops at 4 kHz to synthesize phase-shifted output. Command channels provide a ±10 V analog reference and a 4 mA analog monitoring line. Discrete control is supported by 15 opto-isolated digital inputs and 16 transistor digital outputs, enabling direct wiring of sensors, limit switches, and status lamps. Motion feedback arrives through the DSF Digital Servo Feedback interface, and overall acoustic emission is standard for cabinet-mounted drives.

Heat produced by the power semiconductors and the regeneration path is removed by passive heat dissipation. An internal bleeder resistor dissipates regenerative energy at 0.35 kW continuously and can withstand bursts up to 9.4 kW during rapid deceleration. Under worst-case duty, the assembly releases 305 W of power loss to the surrounding air, a figure that guides enclosure ventilation design. Version 1 hardware uses a maximum PWM duty cycle matched to the 300 V bus, and its protective logic diverts excess bus energy to the bleeder when motor back EMF rises, preventing overvoltage trips while keeping drive components within rated temperature limits.