DKR02.1-W200B-BE12-01-FW Bosch Rexroth Indramat
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MPN: R911275630
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The Bosch Rexroth Indramat DKR02.1-W200B-BE12-01-FW is part of the DKR Drive Controllers series and weighs approximately 104 kilograms. This digital intelligent AC drive controller provides a continuous power output of around 47 kW at 4 kHz and supports a peak current of 141 Amps. It operates with a rated power voltage of 3xAC 400 to 480 V and features an internal bleeder and air cooling with a built-in blower.
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Product Description:
The DKR02.1-W200B-BE12-01-FW is a digital AC drive controller from Bosch Rexroth Indramat within the DKR Drive Controllers series. It acts as the central power and control stage for large synchronous or induction axes, converting plant-level commands into regulated motor currents and dissipating surplus kinetic energy during deceleration. In industrial automation, this module enables high-power gantries, presses, and machine tools to run repeatable cycles with coordinated torque, speed, and position control.
The drive accepts a three-phase input of 3 x AC 400 to 480 V ±10% and uses a separate control supply of AC 230 V ±10%. This arrangement keeps the logic active even when the power section is de-energized. At a 4 kHz switching frequency, it can deliver a continuous output current of 120 A, while short peaks are handled at 141 A. Cooling is provided by an internal built-in blower, so air is drawn through the heat sink without external ducting. Communication with the master controller is through a SERCOS interface, and the unit interprets both digital servo feedback and resolver signals for closed-loop regulation. An internal bleeder circuit rated at 200 A diverts DC bus energy into the brake resistor.
During sustained duty, the power stage can supply 47 kW to the connected motor group, and its brake resistor is rated for a continuous thermal load of 1.5 kW. A transient energy capacity of 240 kWs allows rapid deceleration of heavy axes without overshooting the DC bus voltage. The housing dissipates 1600 W as heat, which guides ventilation design. Despite these power levels, the controller remains mechanically compact and weighs about 104 kg. Bosch Rexroth identifies the device as a Digital Intelligent AC Drive Controller in line series 02, design version 1, and function module version 01.
Frequently Asked Questions about DKR02.1-W200B-BE12-01-FW:
Q: What type of bleeder system does the DKR02.1-W200B-BE12-01-FW use?
A: This model utilizes an internal bleeder for handling braking energy within the drive system.
Q: Which command interface is supported by the DKR02.1-W200B-BE12-01-FW drive controller?
A: The DKR02.1-W200B-BE12-01-FW operates with a SERCOS interface for command and communication.
Q: What is the continuous current rating at 4 kHz for the DKR02.1-W200B-BE12-01-FW?
A: This drive controller provides a continuous current output of 120 A at 4 kHz.
Q: What cooling method does the DKR02.1-W200B-BE12-01-FW utilize?
A: Cooling for the DKR02.1-W200B-BE12-01-FW is achieved through air cooling with a built-in blower.
Q: What types of motor feedback does the DKR02.1-W200B-BE12-01-FW support?
A: It supports both digital servo feedback and resolver feedback for motor position control.
