DM 004K 3301-D Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DM 004K 3301-D is part of the DM Servo Drives series and operates with a 3-phase output voltage of 400 V and a regulated DC link voltage of 670 VDC. It has a rated current of 0.8 A at 8 kHz, offers a maximum output frequency of 800 Hz, and provides IP20 degree of protection. The drive weighs 6.0 kilograms and supports a SERCOS setpoint interface.
Internal Product Review
The DM 004K 3301-D from the Bosch Rexroth Indramat DM Servo Drives series is a highly capable servo drive offering a 3-phase 400 V AC output and regulated 670 VDC link voltage. With a maximum output frequency of 800 Hz and support for incremental encoder input at 1 MHz, this unit delivers precise control in demanding automation environments. The combination of IP20 protection and a SERCOS setpoint interface underscores its suitability for advanced motion control applications.
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Product Description:
The DM 004K 3301-D is a three-phase servo drive manufactured by Bosch Rexroth Indramat as part of the DM Servo Drives series. In automated cells this unit acts as the power stage between a motion controller and the motor, supplying regulated voltage and current so commanded position, speed, and torque profiles are followed precisely. Its compact layout allows installation in multi-axis cabinets without adding excessive weight or depth, making it practical for densely packed production machinery.
The drive’s logic section draws a 24 V auxiliary feed with a demand of 0.89 A, allowing the control electronics to remain active while the main bus is de-energized. Power for the motor is derived from the intermediate circuit, which is regulated at 670 VDC and switched through an IGBT bridge at a factory frequency of 8 kHz. From this stage the unit delivers a line-to-line output of 3ph 400 V. During continuous operation the current is limited to 0.8 A, while short dynamic bursts can reach 6.6 A to accelerate or decelerate the load. These operating points are monitored so junction temperatures stay within design limits and the semiconductors endure the calculated stresses.
In transient over-voltage events the link can rise to 715 VDC before the braking circuitry intervenes, and the inverter can synthesize sine waves up to 800 Hz for high-speed spindle work. Feedback channels include an incremental encoder input rated for 1 MHz edges and a sine encoder track usable to 50 kHz, both synchronized via the SERCOS setpoint bus for deterministic control. The metal housing is classified as IP20, carries a mass of 6.0 kg, and withstands 15 g of shock. Thermal design limits power dissipation to 96.5 W so enclosure temperatures remain controlled in confined cabinets.
