DKR04.1-W400E-BA01-01-FW Bosch Rexroth Indramat
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MPN: R911287253
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The Bosch Rexroth Indramat DKR04.1-W400E-BA01-01-FW belongs to the DKR Drive Controllers series and is classified as a digital intelligent AC drive controller. It features a continuous power output of about 93 kW and supports a peak current of 282 A. The controller uses an air cooling system with a built-in blower and weighs approximately 150 kg.
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Product Description:
The DKR04.1-W400E-BA01-01-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. Installed in machining centers, printing lines, and other automated stations, it regulates three-phase power so connected servo axes follow commanded motion profiles with precision. Within multi-axis equipment, it serves as the power stage between the incoming supply and the servo motor, modulating current to match commanded torque and speed. This allows the connected axis to accelerate, hold velocity, and respond to changing loads under closed-loop control.
The power section accepts a rated three-phase input of 400–480 V. The separate control stage operates from AC 230 V ±10 %, which helps keep the control electronics active during mains disturbances. At a switching frequency of 4 kHz, the power section can deliver a continuous output of 210 A, which corresponds to 93 kW of mechanical power. Line filter and semiconductor losses can generate up to 2500 W of heat, so cabinet ventilation must remove that thermal load. Because the control supply is separate from the main power section, status monitoring and command handling can remain available when the main supply is unstable. The rigid DC bus is protected by an external bleeder and an integrated brake chopper that dissipate regenerative energy without overstressing the capacitors.
Peak current reaches 282 A during acceleration bursts. Command input is handled through an analog interface that accepts proportional speed or torque references from the host PLC, while motor position data returns through digital servo or resolver feedback for closed-loop operation. This feedback arrangement supports both speed-regulated and position-regulated operation. Thermal management relies on air cooling via a built-in blower, which avoids external liquid circuits while supporting high-current operation. The housing weighs 150 kg, so the cabinet structure must support a substantial installed mass. The unit is line series 04 with design version 1, function module 01, and function module version 01.
Frequently Asked Questions about DKR04.1-W400E-BA01-01-FW:
Q: What type of motor feedback does the DKR04.1-W400E-BA01-01-FW support?
A: The DKR04.1-W400E-BA01-01-FW supports both digital servo and resolver feedback for precise motor control.
Q: What bleeder configuration is included in the DKR04.1-W400E-BA01-01-FW?
A: This drive controller features an external bleeder with brake chopper and a rigid DC bus configuration.
Q: What is the continuous drive power rating of the DKR04.1-W400E-BA01-01-FW at 4 kHz?
A: The continuous drive power at 4 kHz is approximately 93 kW on this model.
Q: What is the cooling method employed by the DKR04.1-W400E-BA01-01-FW controller?
A: Cooling is achieved using air with a built-in blower for effective heat dissipation.
Q: What is the rated power voltage specification for the DKR04.1-W400E-BA01-01-FW drive controller?
A: The rated power voltage for this controller is 3-phase AC 400 to 480 V with a tolerance of ±10%.
