Product Description:

The DKS01.1-W050A-DA01-01-FW is an intelligent digital servo drive produced by Bosch Rexroth Indramat for the DKS Intelligent Digital Servo Drives series. It serves as the interface between a motion controller and an AC servo motor, regulating current, speed, and position in machinery such as packaging systems and pick-and-place gantries. The drive converts three-phase mains power into a regulated DC bus and pulse-width-modulated motor output so the motor can deliver repeatable torque during coordinated motion. Closed-loop operation helps the unit respond quickly to load changes during acceleration, deceleration, and synchronized axis movement. It is intended for automated equipment that requires steady velocity control and accurate positioning throughout the operating cycle.

The unit operates from a supply of 3x 230 V AC ±10% and rectifies that input to an internal link of 300 V DC. It can deliver a phase output of 50 A, which suits medium-frame servo motors used on feed axes and indexing tables. The inverter section switches at 4 kHz, balancing acoustic noise, switching loss, and current ripple during operation. This arrangement supports stable motor current during speed changes and direction reversals. Heat generated by the semiconductors can reach 305 W, and the housing releases that thermal load to the surrounding air.

During rapid deceleration, surplus kinetic energy is routed to an onboard bleeder resistor rated for 0.35 kW continuously and up to 9.4 kW for short intervals. The supply section must be able to provide as much as 9.5 kVA during demanding acceleration cycles. Operation is permitted at ambient temperatures up to 55 °C with output derating and at elevations up to 1000 m without derating. Above those limits, current limiting must be used to protect the power section. The cabinet must meet IP10 protection, cooling relies on heat dissipation without separate fans, and the drive processes feedback directly from motors equipped with a DSF encoder.