DKR04.1-W400E-BE34-02-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911287829
The Bosch Rexroth Indramat DKR04.1-W400E-BE34-02-FW is part of the DKR Drive Controllers series and weighs approximately 150 kg. It has a continuous power of about 93 kW at 4 kHz and a peak drive current of 282 A. This digital intelligent AC drive controller features a SERCOS command interface and uses air cooling with a built-in blower.
Internal Product Review
The DKR04.1-W400E-BE34-02-FW is a Bosch Rexroth Indramat digital intelligent AC drive controller with a SERCOS interface and air cooling from a built-in blower. Continuous drive power of about 93 kW at 4 kHz and peak current of 282 A give the controller strong headroom for demanding motion applications. Digital servo and resolver feedback support rounds out a highly capable controller for coordinated industrial drive systems.
Have a part to sell?
Wake Industrial Warranty
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The DKR04.1-W400E-BE34-02-FW is a digital intelligent AC drive controller manufactured by Bosch Rexroth Indramat for the DKR Drive Controllers series. It belongs to Line 04 and is supplied in design version 1. Within an automation cell, this unit converts incoming three-phase power into regulated output for high-torque servo motors and coordinates motion through the SERCOS fieldbus with built-in position feedback channels. The controller supports both digital servo and resolver feedback, and its external bleeder with a rigid DC bus allows the integrated brake chopper to dissipate regenerated energy during rapid deceleration. This arrangement suits spindle drives and gantry axes that require stable torque, responsive braking, and repeatable closed-loop motion under changing load.
The drive exchanges cyclic commands through the SERCOS interface, while closed-loop control adapts to mechanical load by delivering a continuous current of 210 A at a 4 kHz switching frequency. At that same switching frequency, it can supply up to approximately 93 kW of mechanical power to the motor shafts. Internal logic and fan circuits are powered from a separate AC 230 V ±10% control supply, isolating them from main line disturbances. The power stage accepts a mains input of 3×AC 400 to 480 V ±10%, matching common plant distribution voltages. Thermal modeling allocates a total heat dissipation of 2500 W, which the housing directs toward exhaust paths to help prevent component derating. The product group classification indicates menu-based parameter settings rather than analog trimming, and the current rating code 400 places the device in a high-current range for spindle or gantry axes.
Temperature rise is controlled by an internal blower that moves ambient air through dedicated channels, so cooling is provided by a built-in air blower. Under dynamic peaks, the inverter can output a momentary current of 282 A without violating semiconductor limits, giving extra torque for acceleration or impact cutting tasks. Structural rigidity is reflected in a transport mass of 150 kg, which helps damp cabinet vibration. The external bleeder path helps keep bus voltage stable during regeneration when the axis returns energy to the DC bus.
