Product Description:

The DKS01.1-W050A-RL02-01-FW belongs to the DKS Intelligent Digital Servo Drives series manufactured by Bosch Rexroth Indramat. As a digital servo drive, it supplies regulated three-phase power to a connected motor and reads motor position through resolver feedback. The control section uses that feedback to regulate torque and speed during motion. The cooling path removes switching heat so closed-loop servomotors can follow programmed profiles in automated equipment.

This unit draws a maximum input of 3 x 230 V AC (±10%) and can deliver a continuous phase current of 50 A to the motor windings during operation. Energy from the mains is rectified onto a shared bus that operates at 300 V DC, and the same bus voltage is available on the internal link when several axes are connected. Pulse-width modulation runs at 4 kHz, providing adequate torque resolution without excessive transistor switching loss. At full load, the drive requires up to 9.5 kVA of apparent power and 25 A of line current, while normal operation produces 305 W of heat excluding the braking resistor. Heat is removed by forced-air cooling, and the noise emission is standard for control-cabinet devices.

The braking circuit can continuously absorb 0.35 kW of regenerated energy and can handle short surges up to 9.4 kW during rapid deceleration, which helps prevent DC-bus overvoltage when energy returns from the motor. Protection is limited to the cabinet interior by an IP10 housing, so the unit is intended for installation in a controlled enclosure. Rated thermal performance applies up to +45 °C, while operation is possible up to +55 °C with output derating and at altitudes up to 1000 m before further reduction is necessary. Storage limits span -30 °C to +85 °C, and the operating range suits medium-power axes that require repeated acceleration and braking.