DKR02.1-W300N-BA36-01-FW

DKR02.1-W300N-BA36-01-FW is manufactured by Bosch Rexroth Indramat as part of the DKR Drive Controllers series. It provides digital intelligent AC drive control and belongs to line series 02 with design version 1. The current rating is 300. Its analog command interface accepts analog control signals, while digital servo and resolver feedback provide motor position and speed information for closed-loop control.

The drive operates from a rated three-phase AC power voltage of 400 to 480 V with a tolerance of ±10%. A separate 230 V AC control supply, also with a tolerance of ±10%, powers its control circuitry. At a 4 kHz switching frequency, it delivers approximately 55 kW of continuous drive power and supports 141 A of continuous current. Its peak current is 212 A for short periods of increased motor demand.

The unit has no bleeder or brake chopper and uses a rigid DC bus, so it does not provide onboard dissipation of regenerative braking energy. Cooling is supplied by air from a built-in blower. Total heat dissipation is 1,800 W, indicating the thermal load that the cooling and installation environment must manage. The controller weighs approximately 104 kg.