Product Description:

The DKR 3.1-W200Z-BE37-00 is a digitally controlled AC drive manufactured by Bosch Rexroth Indramat as part of the DKR Drive Controllers series. In an automation line, it serves as the central power stage that interprets motion commands from a higher-level controller and delivers regulated three-phase output to servo motors. By combining power electronics with real-time communication and feedback processing, the unit supports coordinated multi-axis positioning, spindle control, and feed-drive duties in metal-cutting, packaging, and material-handling equipment.

Motion data reaches the unit through a SERCOS interface, a fiber-optic network that transmits setpoints and status words with deterministic cycle times, allowing tight synchronization among axes. Internal heat is removed by a built-in air blower, so the drive does not rely on cabinet airflow alone for cooling. The continuous output channel is rated for 141 A, giving the drive stable current capacity for sustained operation with high-torque motors. For fast accelerations or shock loads, the power stage can momentarily supply 200 A of peak current without triggering overcurrent shutdown. Position information from the motor is returned through digital servo and resolver feedback, allowing the controller to work with different feedback types on connected machine axes.

The controller is identified as design 1. It uses the first mechanical and electrical layout for this model, and its function module bears code 00, which indicates the standard feature set without optional safety or additional I/O boards. Classified as a Digital Intelligent AC Drive Controller, the device includes onboard diagnostics, parameter storage, and self-tuning routines that simplify setup. These functions help the drive maintain regulated motor control and support consistent operation during demanding industrial motion tasks.