DM 30K 6311-D Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DM 30K 6311-D is part of the DM Servo Drives series and features a compact mechanical module measuring 445 mm in height and 50 mm in width. It supports a 3-phase 400 VAC output voltage, accepts 670 VDC input voltage, and has a rated output current of 8.2 Amps. The drive includes a resolver encoder interface with 12-bit resolution and uses a PROFIBUS-DP setpoint interface.
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Product Description:
The DM 30K 6311-D is a servo drive produced by Bosch Rexroth Indramat and delivered within the DM Servo Drives series. It converts a high-voltage DC supply into controlled three-phase AC so that synchronous or induction motors can be positioned and speed-regulated in automated machinery and handling systems. The unit uses resolver feedback for rotor position and accepts motion commands through a PROFIBUS-DP setpoint interface, allowing integration with common PLC architectures. Because the power stage and control interface are combined in one module, the drive serves as the link between the DC bus, the motor, and the higher-level controller. Its compact housing is 445 mm high, 50 mm wide, and weighs 6.0 kg, which helps it fit dense control cabinets without requiring excessive panel space.
The drive is energized from a DC link rated at 670 VDC, and its input side draws up to 8.5 A DC during nominal operating cycles. Internally, this energy is modulated to produce a motor supply of three-phase 400 VAC. Continuous operation is specified for a phase current of 8.2 A, while overload transients may reach 22 A rms when the switching frequency is held at 8 kHz. The output stage uses commanded setpoint data to regulate motor current in response to changing load conditions. This operating range supports controlled acceleration, steady running, and short-term load peaks in matched motor systems.
Maximum power loss is 156 W, so cabinet airflow must remove that heat to prevent derating during operation. When ambient temperature rises, output capability decreases by 0.24 A/K at the same 8 kHz switching frequency. Control logic and sensor power come from a 24 V auxiliary rail that the unit loads at 1.03 A. The resolver delivers position data with 12-bit resolution, which supports stable feedback for general motion tasks. The surrounding control system must accommodate cabinet cooling, auxiliary power demand, and resolver wiring.
Frequently Asked Questions about DM 30K 6311-D:
Q: What is the input voltage requirement for the DM 30K 6311-D drive?
A: The DM 30K 6311-D operates with an input voltage of 670 VDC.
Q: What is the rated output current of the DM 30K 6311-D servo drive?
A: This drive has a rated output current of 8.2 A for continuous operation.
Q: What setpoint interface does the DM 30K 6311-D use for communication?
A: The DM 30K 6311-D supports PROFIBUS-DP as its setpoint interface.
Q: What type and resolution of encoder interface does the DM 30K 6311-D provide?
A: Its encoder interface is a resolver with a resolution of 12 bits.
Q: What additional function does the DM 30K 6311-D offer?
A: Positioning control is included as an additional function in the DM 30K 6311-D model.
