DKR02.1-W300B-B

DKR02.1-W300B-B is a Bosch Rexroth Indramat unit in the DKR Drive Controllers series. It belongs to line series 02 and uses design version 1. The current rating is 300. It supports digital servo and resolver motor feedback, allowing the controller to receive motor position and speed information from either feedback type. Cooling is provided by air from a built-in blower, which removes operating heat from the unit. Total heat dissipation is 1,800 W, and the unit weighs approximately 104 kg.

The drive accepts a three-phase rated power voltage of 400 to 480 VAC with a tolerance of ±10%. Its control circuitry operates at 230 VAC with a tolerance of ±10%. At a 4 kHz switching frequency, the drive supplies approximately 55 kW of continuous power and 141 A of continuous current. Its peak current is 212 A, supporting short periods of increased motor demand.

An internal bleeder is included to dissipate regenerated energy during motor braking. The brake resistor handles 1.5 kW of continuous power and up to 240 kWs of braking energy, allowing it to absorb energy returned by the motor during deceleration.