DKR03.1-W200B-BT04-01-FW Bosch Rexroth Indramat
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MPN: R911285219
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The Bosch Rexroth Indramat DKR03.1-W200B-BT04-01-FW is part of the DKR Drive Controllers series. This digital intelligent AC drive controller has a continuous power output of about 35 kW at 4 kHz and is equipped with an internal bleeder and a built-in blower for air cooling. It features a SERCOS interface for command, supports digital servo and resolver feedback, and weighs approximately 49 kg.
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Product Description:
The DKR03.1-W200B-BT04-01-FW drive controller is built by Bosch Rexroth Indramat and belongs to the DKR Drive Controllers series. As a digital intelligent AC drive controller, it regulates high-power servo and spindle motors used in automated machining cells, material handling lines, and other coordinated motion tasks. The unit provides closed-loop torque, speed, and position control while interfacing with upper-level PLCs through fiber-optic command channels.
A fiber-optic SERCOS interface serves as the primary command link, allowing deterministic cycle times. During continuous operation at a 4 kHz switching frequency, the power section can deliver 92 A of output current, translating to roughly 35 kW of mechanical power to the load. Internal logic and I/O are energized by an AC 230 V, ±10% control supply that is independent of the main bus. Thermal management is handled by a built-in air blower that forces cooling air across the heat sink. The power stage accepts a three-phase mains supply of 3 x AC 400 to 480 V, ±10%, matching common industrial distribution networks. An integrated bleeder channel dissipates regenerated energy so an external braking chopper is not required. The drive also supports digital servo and resolver feedback inputs for multiple motor encoder types, and the product is part of Line 03 in the series.
Braking duty is supported by a brake resistor rated for a continuous load of 1 kW and able to absorb up to 150 kWs of energy in short bursts, which helps protect the DC link during rapid deceleration. For acceleration peaks, the inverter can supply 141 A, giving machines extra torque reserve without oversizing the drive. Total internal losses reach 1200 W, which helps determine cabinet ventilation requirements. The current rating of 200 in the type code reflects the nominal power section size, while design version 1 and function module version 01 identify the exact configuration shipped. The module weighs 49 kg, keeping cabinet integration manageable in retrofit or new-build installations.
Frequently Asked Questions about DKR03.1-W200B-BT04-01-FW:
Q: What type of command interface is available on the DKR03.1-W200B-BT04-01-FW controller?
A: The DKR03.1-W200B-BT04-01-FW controller uses a SERCOS command interface for communication and control.
Q: Does the DKR03.1-W200B-BT04-01-FW come with an internal bleeder configuration?
A: This drive controller is equipped with an internal bleeder for energy dissipation.
Q: What is the continuous current of the DKR03.1-W200B-BT04-01-FW drive at 4 kHz?
A: The DKR03.1-W200B-BT04-01-FW provides a continuous current of 92 A at 4 kHz operation.
Q: How is the DKR03.1-W200B-BT04-01-FW drive cooled during operation?
A: Air cooling is the method used for this drive, utilizing a built-in blower to manage heat dissipation.
Q: What type of motor feedback does the DKR03.1-W200B-BT04-01-FW controller support?
A: Digital servo and resolver feedback are supported by this drive for motor position and speed monitoring.
