DKC02.3-200-7-FW Bosch Rexroth Indramat
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MPN: R911284140
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The Bosch Rexroth Indramat DKC02.3-200-7-FW is part of the DKC Drive Controllers series and is designated as an EcoDrive product. It features a continuous output current of 100 A at 4 kHz and a peak output current of 200 A. The controller operates with a DC-bus nominal voltage of 700 V and has a device power dissipation of 960 W.
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Product Description:
The DKC02.3-200-7-FW is an EcoDrive-class drive controller manufactured by Bosch Rexroth Indramat within the DKC Drive Controllers series. It converts line power into regulated three-phase output for synchronous and induction motors used on assembly stations, packaging machinery, and material-handling axes. By monitoring current, voltage, and thermal conditions, the controller executes closed-loop torque and speed commands that keep automated equipment on target throughout each production cycle. This arrangement lets the controller handle both motor power conversion and motion regulation within the same housing.
During steady operation at a 4 kHz switching frequency, the drive supplies up to 100 A of continuous output current. The internal DC link is held at 700 V, and regenerated energy is absorbed by the built-in dynamic brake. A capacitor bank totaling 1.5 mF smooths the link and reduces voltage ripple. Electronics and IGBT losses account for 960 W of heat that must be removed by the enclosure cooling system. Stable link voltage helps the output stage maintain predictable current control when load demand changes quickly. Interface option 02 enables the controller to exchange command and status data with higher-level automation systems without additional daughter cards.
For transient demands, the inverter can deliver a peak current of 200 A. This supports short overload periods during acceleration and deceleration. When surplus energy accumulates, the bleeder circuit diverts it at 120 kW and is supported by a 24 Ohm soft-start resistor that also limits inrush at power-up; this resistor can carry 1 kW without overheating. The DC network supplies a continuous 10.3 kW from a 3 × 400 V source, while the pulse pattern can be modulated to 800 Hz for high-speed spindle operation. A 6 Ohm ZKS resistor discharges the link at shutdown. The controller sustains full ratings up to 45 °C ambient and permits reduced output up to 55 °C in sealed cabinet installations.
Frequently Asked Questions about DKC02.3-200-7-FW:
Q: What is the peak output current of the DKC02.3-200-7-FW drive controller?
A: The DKC02.3-200-7-FW drive controller has a peak output current of 200 A.
Q: What is the DC bus nominal voltage for the DKC02.3-200-7-FW?
A: This drive controller features a DC bus nominal voltage of 700 V.
Q: What are the specifications of the soft-start resistor in the DKC02.3-200-7-FW drive?
A: A soft-start resistor rated at 24 Ohm with a power capacity of 1 kW is included in this model.
Q: What is the continuous output current capability of the DKC02.3-200-7-FW at 4 kHz?
A: The DKC02.3-200-7-FW operates at a maximum continuous output current of 100 A at 4 kHz.
Q: Does the DKC02.3-200-7-FW feature a DC bus dynamic brake?
A: This drive controller includes a dynamic brake on the DC bus, enhancing safety during rapid stops.
